Compose a module's Go service as a process the host runs (hq issue 213)

The controller is to be declared as a Go bundle run by a process instead of
an image (novox/hq issue 213, ADR 0188 §1, §3). The composer could not
express that honestly yet:

- a module declaring tools had every bundle served by the node's runtime,
  so the controller's own binary would have been launched a second time as
  an MCP child; a bundle one of the module's resources runs is now served
  only when it says `loads`
- a module's accounts went after the mesh-computed files, so secrets owned
  by the account a process runs as were refused on the first apply; a
  module's `user` resources now go first
- `prepares` derived its step only from a container; a process is now
  prepared by the same program with `prepare` as a run-once process
- `${seat:…}` was filled only into a container's environment
- a process may say what it `replaces` (a resource of its module it no
  longer declares), prefixed as the host records it, so the host keeps the
  old one running until the process is (needs mesh-host's `replaces`)

This lands before the controller's manifest uses any of it: the running
controller composes its own declaration, so the code that fills the new
shape must be live first.

.gitignore

@@ -3,8 +3,3 @@
 # A built binary. The lab writes one here when pointed at the repository root by mistake;
 # built artifacts belong in build/, which is already ignored.
 /mesh-builder
-/mesh-controller
-/postgres-provisioner
-/redis-provisioner
-# And where `go build` in cmd/mesh-controller leaves it (novox/hq issue 233).
-/cmd/mesh-controller/mesh-controller

Dockerfile

@@ -1,11 +1,5 @@
-# The Go it builds with, pinned here because genesis builds this file with no arguments (novox/hq
-# issue 223) — the Makefile passes the same digest. A tag older than go.mod asks for is how
-# `make image` broke once before (issue 146).
-ARG GO_BASE=golang@sha256:8ac98ca534ac3f51e1f420a1dd2c15e74c75cfa0f23f3ad27eb5d7236c349a0c
-# The control plane's image — for genesis and the lab only. The mesh runs the controller as a Go
-# bundle the host starts as a process (module.json; novox/hq issue 213), and builds no image of it.
-# Genesis builds this file and raises it as the container the process replaces on the first push
-# (mesh-host internal/bootstrap, novox/hq issue 223).
+ARG GO_BASE=golang:1.25-alpine
+# The control plane's image.
 #
 # novox/hq ADR 0006: this image is pinned by digest in the bundle the host carries, fetched on a
 # machine where no mesh exists yet, and run before there is anything to check it against. So it
@@ -21,17 +15,13 @@ ARG GO_BASE=golang@sha256:8ac98ca534ac3f51e1f420a1dd2c15e74c75cfa0f23f3ad27eb5d7
 FROM ${GO_BASE} AS build
 WORKDIR /src
 
-# **Nothing is fetched** (novox/hq to-be 45 Phase 1): every dependency is in vendor/, committed, so
-# the image builds from this repository alone — the host's validator among them, whose module no
-# public proxy is asked for. Dependencies first, so a change to the source does not re-copy them.
+# Dependencies first, so a change to the source does not refetch them.
 COPY go.mod go.sum ./
-COPY vendor/ vendor/
+RUN go mod download
 
-# `COPY . .` brings `.git` along, so Go is told not to stamp the commit: the version is said by -X, and a
-# rebuild of an unchanged program is the same bytes (novox/hq ADR 0267 rule 6, issue 363).
 COPY . .
 ARG VERSION=development
-RUN CGO_ENABLED=0 GOFLAGS=-mod=vendor GOPROXY=off go build -trimpath -buildvcs=false \
+RUN CGO_ENABLED=0 go build -trimpath \
         -ldflags "-s -w -X main.version=${VERSION}" \
         -o /mesh-controller ./cmd/mesh-controller
 

Makefile

@@ -27,21 +27,17 @@ build:
 IMAGE ?= mesh-controller:$(VERSION)
 DEV_TAG ?= mesh-controller:development
 
-# The Go base the image is built on.
+# The base the module declares, read from the manifest rather than written here twice.
 #
 # **`make image` was broken and stayed broken**, because the Dockerfile's fallback base was a Go
 # older than go.mod asks for: every build died at `go mod download` with "go.mod requires go >=
 # 1.26.0", and the pipeline never saw it because the pipeline passes the declared base in. Anybody
 # building the image by hand hit it and had to find the digest themselves (novox/hq 04-ISSUES/146,
 # what it cost).
-#
-# **Pinned here since the manifest stopped building an image** (novox/hq issue 213): the mesh builds
-# the controller as a Go bundle with its own toolchain, and only `make image` — genesis and the lab —
-# still needs a Go base. The digest is the one the manifest declared until then.
-GO_BASE ?= golang@sha256:8ac98ca534ac3f51e1f420a1dd2c15e74c75cfa0f23f3ad27eb5d7236c349a0c
+GO_BASE ?= $(shell python3 -c "import json;print(next(o['image'] for o in json.load(open('module.json'))['build']['on'] if o['arg']=='GO_BASE'))" 2>/dev/null)
 
 image:
-	@test -n "$(GO_BASE)" || { echo "no GO_BASE; pass GO_BASE=<image>"; exit 1; }
+	@test -n "$(GO_BASE)" || { echo "module.json declares no GO_BASE; pass GO_BASE=<image> or fix the manifest"; exit 1; }
 	docker build --build-arg GO_BASE=$(GO_BASE) --build-arg VERSION=$(VERSION) -t $(IMAGE) -t $(DEV_TAG) .
 	@echo
 	@docker image inspect $(IMAGE) --format 'built {{.RepoTags}}  {{.Size}} bytes'
@@ -52,7 +48,7 @@ BUILDER_IMAGE ?= mesh-builder:$(VERSION)
 BUILDER_DEV_TAG ?= mesh-builder:development
 
 builder-image:
-	@test -n "$(GO_BASE)" || { echo "no GO_BASE; pass GO_BASE=<image>"; exit 1; }
+	@test -n "$(GO_BASE)" || { echo "module.json declares no GO_BASE; pass GO_BASE=<image> or fix the manifest"; exit 1; }
 	docker build --build-arg GO_BASE=$(GO_BASE) -f cmd/mesh-builder/Dockerfile -t $(BUILDER_IMAGE) -t $(BUILDER_DEV_TAG) .
 	@echo
 	@docker image inspect $(BUILDER_IMAGE) --format 'built {{.RepoTags}}  {{.Size}} bytes'
@@ -95,43 +91,31 @@ PROXY_IMAGE ?= mesh-route-proxy:$(VERSION)
 PROXY_DEV_TAG ?= mesh-route-proxy:development
 
 proxy-image:
-	docker build --build-arg GO_BASE=$(GO_BASE) -f modules/route-proxy/Dockerfile -t $(PROXY_IMAGE) -t $(PROXY_DEV_TAG) .
+	docker build --build-arg GO_BASE=$(GO_BASE) -f examples/route-proxy/Dockerfile -t $(PROXY_IMAGE) -t $(PROXY_DEV_TAG) .
 	@echo
 	@docker image inspect $(PROXY_IMAGE) --format 'built {{.RepoTags}}  {{.Size}} bytes'
 
-# The whole check. Raises a database, runs the repository's own check against it -- merge-check.sh,
-# the very script `mesh/repo-check` runs -- and takes the database down again, including when the
-# check fails, which is why the teardown is not conditional and the script's exit status is the
-# target's.
+# The whole gate. Raises a database, runs everything against it, and takes it down again --
+# including when the tests fail, which is why the teardown is not conditional.
 #
-# **It calls the script rather than restating it** (novox/hq issue 431): this target used to list its
-# own steps, its formatting step walked vendor/ where the script's does not, and it failed on
-# third-party code no change could fix -- so a developer's check and the gate disagreed, and the steps
-# after formatting never ran through it. The script is the one list of steps; this target only gives it
-# a database (MESH_TEST_POSTGRES, exported above).
-#
-# **Two levels** (issue 895): the unit level, `go test ./...` untagged, timed and held to a bound; and the integration
-# level, `-tags integration`, the tests that start a bus, a store or another process. Each is said with its time.
-#
-# **Packages in parallel, under the race detector, each test on a bus of its own** (internal/testbus),
-# as the script runs them: a bus per test, of the release the mesh runs, makes the suite the same in any
-# order, and the timeout bounds a hang to a failure with a stack, never a stalled gate.
-check: postgres
-	@sh merge-check.sh ; status=$$? ; docker rm -f $(PG_CONTAINER) >/dev/null 2>&1 || true ; exit $$status
+# **One package at a time (-p 1), and it is not about speed.** The live tests reach one bus, and on
+# it they assert, read and remove the mesh's own objects -- streams and consumers with fixed names,
+# because those names are the mesh's and a test cannot choose others. Two packages doing that at once
+# is one deleting a consumer the other is reading through, and the failure lands in whichever test
+# was reading, as "no response from stream". That reads as a bug in the code under test.
+check: fmt vet postgres
+	@go test -p 1 ./... ; status=$$? ; $(MAKE) postgres-stop ; exit $$status
 
-# The unit level alone (untagged: no bus, no store, no other process), which a developer runs continuously. The tests
-# that need a bus or the store carry `//go:build integration` and run in `check`, not here; without a database the
-# store's tests would skip rather than fail anyway.
+# Without a database the live tests skip rather than fail, so this is the honest subset and not
+# the gate. Serialised for the same reason check is: a bus may be configured even when a store is not.
 test:
-	go test -timeout 15m ./...
+	go test -p 1 ./...
 
 vet:
 	go vet ./...
 
-# Quick steps for a developer, not part of `check`. The directories gofmt reads must be the ones
-# merge-check.sh lists, never `.`, which walks vendor/ (novox/hq issue 431).
 fmt:
-	@unformatted=$$(gofmt -l cmd internal examples) ; \
+	@unformatted=$$(gofmt -l . 2>/dev/null) ; \
 	if [ -n "$$unformatted" ] ; then echo "not gofmt'd:" ; echo "$$unformatted" ; exit 1 ; fi
 
 postgres:

README.md

@@ -193,13 +193,6 @@ passes every check that only looks at the message.
 
 ## The image
 
-**The mesh no longer runs the controller from it** (novox/hq issue 213). The module declares a Go
-bundle, `controller`, which the host on the controller's machine unpacks and runs as the process
-`mesh-controller` under the account of the same name (ADR 0188 §1, §3). The image stays for what
-still runs a container of the controller: genesis, which raises the first controller from it and
-installs the module from its manifest (mesh-host `internal/bootstrap`), and the lab. Neither is the
-mesh's own build any more — `make image` builds it.
-
 `FROM scratch`, holding one statically linked binary and nothing else — no shell, no package
 manager, no libc, no CA certificates.
 

RELEASE-57.md

@@ -1,6 +0,0 @@
-# Release 57: config and provisioning
-
-This branch carries the work of hq design 57 (ADR 0348, ADR 0349) in this repository. Each package
-merges here through its own reviewed pull request; the branch reaches main as one pull request, in one
-delivery group with the branch of the same name in mesh-controller, mesh-host, mesh-sdk, mesh-catalog
-and hq, after a rehearsal in the lab. This file is deleted by the last commit before that pull request.

check-nested-modules.sh

@@ -1,29 +0,0 @@
-#!/bin/sh
-# The unit tests of every Go module of its own below this repository's root, run from the root, for merge-check.sh
-# and for the test that tries it on a tree (merge_check_nested_test.go). Its own file so that the test needs no
-# particular merge-check.sh: the check that judges a change to merge-check.sh is main's.
-set -eu
-cgo="${cgo:-0}"
-race="${race:-}"
-
-# nested_modules vets and tests every Go module of its own below the root, `modules/<name>/go.mod` (novox/hq ADR 0420
-# §5, issue 1025): `./...` stops at a nested go.mod, so a module that lives whole in this repository would have its
-# unit tests run by nobody. None is a pass. Each runs in its own directory, outside the vendor directory this
-# repository's own packages are built from; a nested module vendors what the forge holds (its own `vendor/`, so the
-# check runs offline), as this repository's root module does (issue 1019). A failing module fails the check; the others are still run.
-nested_modules() {
-	nested=0
-	for gomod in modules/*/go.mod; do
-		[ -e "$gomod" ] || continue
-		dir=$(dirname "$gomod")
-		echo "nested module $dir:"
-		if ! (cd "$dir" && GOFLAGS= CGO_ENABLED=0 go vet ./... &&
-			GOFLAGS= CGO_ENABLED="${cgo:-0}" go test ${race:-} -count=1 -timeout 30m ./...); then
-			echo "nested module $dir FAILED"
-			nested=1
-		fi
-	done
-	return $nested
-}
-
-nested_modules

cmd/mesh-builder/Dockerfile

@@ -11,7 +11,7 @@ WORKDIR /src
 COPY go.mod go.sum ./
 RUN go mod download
 COPY . .
-RUN CGO_ENABLED=0 go build -trimpath -buildvcs=false -ldflags '-s -w' -o /mesh-builder ./cmd/mesh-builder
+RUN CGO_ENABLED=0 go build -trimpath -ldflags '-s -w' -o /mesh-builder ./cmd/mesh-builder
 
 FROM ${ALPINE_BASE}
 # git to clone what it is asked to build, and the docker client to build and push it. The daemon

cmd/mesh-builder/busy.go

@@ -1,146 +0,0 @@
-package main
-
-import (
-	"errors"
-	"fmt"
-	"os"
-	"path/filepath"
-	"strings"
-	"time"
-)
-
-// **The build agent says whether it is busy, and being asked drains it** (novox/hq ADR 0335 §1, §5). Its
-// container declares `busy` as `mesh-builder busy`: the node-engine runs it inside the container before it
-// replaces it. It exits 0 while a build is in hand and 1 when none is; and from the first ask the agent takes
-// no new build request, so its answer ends once the build in hand ends — a replaced builder finishes the check
-// it runs, instead of the build queue handing it out again from the start (issue 594).
-//
-// Two marks in the container's own temporary directory, as the ready mark (ready.go): a new container starts
-// without them, and a restarted one removes them before it takes work again.
-//
-//   - in hand: written by the agent when it claims a request, before it reads whether it is drained; removed
-//     when the build ends.
-//   - drained: written by the ask, before it reads whether a build is in hand.
-//
-// Each side writes its own mark before it reads the other's, so an ask racing a fetch sees the build in hand,
-// or the agent sees the drain and hands the request back; never neither.
-
-func inHandMark() string { return filepath.Join(os.TempDir(), "mesh-builder.in-hand") }
-func drainMark() string  { return filepath.Join(os.TempDir(), "mesh-builder.drained") }
-
-// The drain lapses when no ask has come for drainLapse: the node-engine asks every 20 seconds for as long as it
-// really waits, so an agent whose replacement was withdrawn — the declaration put back, the walk stopped —
-// takes work again rather than staying drained for ever (review of ADR 0335). And an agent drained for longer
-// than the node-engine's bound and the slack says it is not ready: the replacement it was drained for never
-// came, which is a fault to see.
-const (
-	drainLapse   = 2 * time.Minute
-	drainTooLong = 15*time.Minute + 5*time.Minute
-)
-
-// drainedAt is when the drain began and when it was last asked, from its mark; false when there is no mark.
-func drainedAt() (began, asked time.Time, ok bool) {
-	info, err := os.Stat(drainMark())
-	if err != nil {
-		return time.Time{}, time.Time{}, false
-	}
-	asked = info.ModTime()
-	began = asked
-	if raw, err := os.ReadFile(drainMark()); err == nil {
-		if t, err := time.Parse(time.RFC3339, strings.TrimSpace(string(raw))); err == nil && !t.After(asked) {
-			began = t
-		}
-	}
-	return began, asked, true
-}
-
-// drained says the agent was asked whether it is busy within drainLapse: it takes no new build request.
-func drained() bool { return drainedSince(time.Now()) }
-
-func drainedSince(now time.Time) bool {
-	_, asked, ok := drainedAt()
-	return ok && now.Sub(asked) < drainLapse
-}
-
-// drainedTooLong is the health check's second half: nil unless the agent has been drained, asked all along, for
-// longer than its node-engine's bound and the slack.
-func drainedTooLong(now time.Time) error {
-	began, asked, ok := drainedAt()
-	if !ok || now.Sub(asked) >= drainLapse || now.Sub(began) <= drainTooLong {
-		return nil
-	}
-	return fmt.Errorf("drained since %s and still asked: the replacement its node-engine waits for has not come "+
-		"within %s (novox/hq ADR 0335)", began.UTC().Format(time.RFC3339), drainTooLong)
-}
-
-// claim marks a request in hand, unless the agent is drained: then nothing is in hand, and the request goes
-// back to the queue.
-func claim() bool {
-	// Made, never written over: one build at a time, and a mark already there is a build in hand.
-	f, err := os.OpenFile(inHandMark(), os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o644)
-	if err != nil {
-		// Unmarked, an ask would say idle while this build runs: the build is not taken.
-		fmt.Fprintf(os.Stderr, "cannot mark a build in hand (%s), so it is handed back: %v\n", inHandMark(), err)
-		return false
-	}
-	_, err = f.WriteString(time.Now().UTC().Format(time.RFC3339) + "\n")
-	if closeErr := f.Close(); err == nil {
-		err = closeErr
-	}
-	if err != nil {
-		_ = os.Remove(inHandMark())
-		fmt.Fprintf(os.Stderr, "cannot mark a build in hand (%s), so it is handed back: %v\n", inHandMark(), err)
-		return false
-	}
-	if drained() {
-		_ = os.Remove(inHandMark())
-		fmt.Fprintln(os.Stderr, "asked whether busy, so this agent takes no new build: handed back")
-		return false
-	}
-	return true
-}
-
-// holding says what is in hand, for the ask to print: written once the request is read.
-func holding(what string) {
-	_ = os.WriteFile(inHandMark(), []byte(time.Now().UTC().Format(time.RFC3339)+" "+what+"\n"), 0o644)
-}
-
-// released ends the build in hand.
-func released() {
-	if err := os.Remove(inHandMark()); err != nil && !errors.Is(err, os.ErrNotExist) {
-		fmt.Fprintf(os.Stderr, "cannot remove the mark of the build in hand (%s): %v\n", inHandMark(), err)
-	}
-}
-
-// undrained clears both marks at the start of a holder: a container started again is asked afresh.
-func undrained() error {
-	for _, mark := range []string{drainMark(), inHandMark()} {
-		if err := os.Remove(mark); err != nil && !errors.Is(err, os.ErrNotExist) {
-			return fmt.Errorf("cannot remove %s: %w", mark, err)
-		}
-	}
-	return nil
-}
-
-// busy is the ask: it drains the agent, then says whether a build is in hand. Nil — exit 0 — while one is.
-func busy() (string, error) {
-	// The mark keeps when the drain began while it is asked within drainLapse, and is written again on every
-	// ask: its time is the last ask.
-	began := time.Now().UTC()
-	if was, _, ok := drainedAt(); ok && drained() {
-		began = was.UTC()
-	}
-	if err := os.WriteFile(drainMark(), []byte(began.Format(time.RFC3339)+"\n"), 0o644); err != nil {
-		// Not drained, it could take the next build: said, and answered busy only for what is in hand now.
-		fmt.Fprintf(os.Stderr, "cannot mark this agent drained (%s): %v\n", drainMark(), err)
-	}
-	held, err := os.ReadFile(inHandMark())
-	if err != nil {
-		return "", errors.New("idle: no build in hand, and this agent takes no new one")
-	}
-	since, what, _ := strings.Cut(strings.TrimSpace(string(held)), " ")
-	if what == "" {
-		what = "a build"
-	}
-	return fmt.Sprintf("busy: %s, in hand since %s; taking no new build", what, since), nil
-}

cmd/mesh-builder/busy_test.go

@@ -1,162 +0,0 @@
-package main
-
-import (
-	"os"
-	"strings"
-	"sync"
-	"testing"
-	"time"
-)
-
-// `mesh-builder busy` answers 0 while a build is in hand and non-zero when idle, and after its first ask the
-// agent takes no new build request (novox/hq ADR 0335 §5).
-func TestBusyAnswersWhileABuildIsInHandAndDrainsTheAgent(t *testing.T) {
-	t.Setenv("TMPDIR", t.TempDir())
-	if err := undrained(); err != nil {
-		t.Fatal(err)
-	}
-	if drained() {
-		t.Fatal("an agent never asked is drained")
-	}
-	// A build is claimed and runs.
-	if !claim() {
-		t.Fatal("an agent never asked refused a build")
-	}
-	holding("novox/mesh-controller (check-280)")
-	said, err := busy()
-	if err != nil || !strings.Contains(said, "novox/mesh-controller (check-280)") {
-		t.Fatalf("an agent with a build in hand did not answer busy with what it holds: %q %v", said, err)
-	}
-	// From that ask on it takes nothing new: the fetch is not made, and one fetched is handed back.
-	if !drained() {
-		t.Fatal("the ask did not drain the agent")
-	}
-	if claim() {
-		t.Fatal("a drained agent took a new build")
-	}
-	// The build in hand is still in hand after the refused claim, and busy goes on saying so.
-	if _, err := busy(); err != nil {
-		t.Fatalf("a refused claim ended the build in hand: %v", err)
-	}
-	// It ends: idle, and still drained.
-	released()
-	if _, err := busy(); err == nil {
-		t.Fatal("an agent with nothing in hand answered busy")
-	}
-	if claim() {
-		t.Fatal("a drained agent took a build after its last one ended")
-	}
-	// Started again, it is asked afresh.
-	if err := undrained(); err != nil {
-		t.Fatal(err)
-	}
-	if drained() || !claim() {
-		t.Fatal("a holder started again is still drained")
-	}
-	released()
-}
-
-// An ask racing a fetch sees the build in hand, or the agent sees the drain and hands the request back: never
-// neither, which would replace the container under a build just taken.
-func TestAnAskRacingAFetchNeverMissesTheBuild(t *testing.T) {
-	t.Setenv("TMPDIR", t.TempDir())
-	for i := 0; i < 200; i++ {
-		if err := undrained(); err != nil {
-			t.Fatal(err)
-		}
-		var claimed bool
-		var askErr error
-		var wg sync.WaitGroup
-		wg.Add(2)
-		go func() { defer wg.Done(); claimed = claim() }()
-		go func() { defer wg.Done(); _, askErr = busy() }()
-		wg.Wait()
-		if claimed && askErr != nil {
-			t.Fatalf("round %d: the agent took a build and the ask said idle", i)
-		}
-		released()
-	}
-}
-
-// A drain no longer asked lapses: an agent whose replacement was withdrawn after the first ask (a put-back, a
-// revert, a stopped walk) takes work again after drainLapse, rather than staying drained with its health green.
-func TestADrainNoLongerAskedLapses(t *testing.T) {
-	t.Setenv("TMPDIR", t.TempDir())
-	if err := undrained(); err != nil {
-		t.Fatal(err)
-	}
-	if _, err := busy(); err == nil {
-		t.Fatal("an idle agent answered busy")
-	}
-	if !drained() || claim() {
-		t.Fatal("an agent just asked takes work")
-	}
-	// The last ask was three minutes ago.
-	old := time.Now().Add(-3 * time.Minute)
-	if err := os.Chtimes(drainMark(), old, old); err != nil {
-		t.Fatal(err)
-	}
-	if drained() {
-		t.Fatal("a drain no longer asked for three minutes still holds")
-	}
-	if !claim() {
-		t.Fatal("an agent whose drain lapsed takes no work")
-	}
-	released()
-}
-
-// An agent drained, and asked all along, for longer than its node-engine's bound and the slack is not ready: the
-// replacement it was drained for never came. One asked again after a lapse starts a new drain.
-func TestAnAgentDrainedTooLongIsNotReady(t *testing.T) {
-	t.Setenv("TMPDIR", t.TempDir())
-	if err := undrained(); err != nil {
-		t.Fatal(err)
-	}
-	taking("mesh-build-machine")
-	if _, err := busy(); err == nil {
-		t.Fatal("an idle agent answered busy")
-	}
-	now := time.Now()
-	if err := drainedTooLong(now); err != nil {
-		t.Fatalf("an agent drained a moment ago is not ready: %v", err)
-	}
-	// The drain began 25 minutes ago, and the node-engine asked a moment ago.
-	began := now.Add(-25 * time.Minute).UTC().Format(time.RFC3339)
-	if err := os.WriteFile(drainMark(), []byte(began+"\n"), 0o644); err != nil {
-		t.Fatal(err)
-	}
-	err := drainedTooLong(time.Now())
-	if err == nil || !strings.Contains(err.Error(), "has not come") {
-		t.Fatalf("an agent drained for 25 minutes reads ready: %v", err)
-	}
-	// Each ask keeps when the drain began.
-	if _, err := busy(); err == nil {
-		t.Fatal("an idle agent answered busy")
-	}
-	if err := drainedTooLong(time.Now()); err == nil {
-		t.Fatal("an ask started the drain again")
-	}
-	// The asks stopped: the drain lapsed, and so did the fault.
-	old := time.Now().Add(-3 * time.Minute)
-	if err := os.Chtimes(drainMark(), old, old); err != nil {
-		t.Fatal(err)
-	}
-	if err := drainedTooLong(time.Now()); err != nil {
-		t.Fatalf("a lapsed drain still reads not ready: %v", err)
-	}
-}
-
-// An ask this build does not know exits non-zero: an older image asked `busy` reads idle, not busy for the
-// node-engine's whole bound.
-func TestAnUnknownCommandFails(t *testing.T) {
-	was := os.Args
-	t.Cleanup(func() { os.Args = was })
-	os.Args = []string{"mesh-builder", "some-later-word"}
-	if err := run(); err == nil {
-		t.Fatal("an unknown command exited 0")
-	}
-	os.Args = []string{"mesh-builder", "help"}
-	if err := run(); err != nil {
-		t.Fatalf("help failed: %v", err)
-	}
-}

cmd/mesh-builder/check_spec_test.go

@@ -1,38 +0,0 @@
-package main
-
-import (
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/builder"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The build seat hands the check the judge cache the build agent declares (MESH_JUDGE_CACHE), never a path of its own.
-func TestTheBuildSeatHandsTheCheckTheJudgeCacheItDeclares(t *testing.T) {
-	t.Setenv("MESH_JUDGE_CACHE", "/var/lib/mesh/build-agent/judge-cache")
-	if got := judgeCache(); got != "/var/lib/mesh/build-agent/judge-cache" {
-		t.Fatalf("the judge cache the manifest declares is read as %q", got)
-	}
-	t.Setenv("MESH_JUDGE_CACHE", "")
-	if got := judgeCache(); got != "" {
-		t.Fatalf("with no judge cache declared, %q is used", got)
-	}
-}
-
-// The siblings a check is asked to read reach the build seat's spec and, as read, the outcome (novox/hq ADR 0382).
-func TestTheSiblingsAnAskNamesReachTheSpecAndTheOutcome(t *testing.T) {
-	spec := checkSpecOf(link.BuildRequest{Check: &link.CheckRequest{Owner: "novox", Repo: "mesh-host", Base: "main",
-		Siblings:        []link.CheckSibling{{Repository: "novox/mesh-controller", Number: 346, Head: "a", Base: "main", Dir: "mesh-controller"}},
-		SiblingsUnknown: "why"}})
-	if len(spec.Siblings) != 1 || spec.Siblings[0] != (builder.Sibling{Repository: "novox/mesh-controller", Number: 346,
-		Head: "a", Base: "main", Dir: "mesh-controller"}) || spec.SiblingsUnknown != "why" {
-		t.Fatalf("the spec reads %+v", spec)
-	}
-	out := siblingsOut([]builder.JudgedSibling{{Repository: "novox/mesh-controller", Number: 346, Head: "a", Base: "main", BaseCommit: "b"}})
-	if len(out) != 1 || out[0].BaseCommit != "b" || out[0].Number != 346 {
-		t.Fatalf("the outcome reads %+v", out)
-	}
-	if plain := checkSpecOf(link.BuildRequest{Check: &link.CheckRequest{Owner: "o", Repo: "r"}}); plain.Siblings != nil {
-		t.Fatalf("a request that names none has siblings %+v", plain.Siblings)
-	}
-}

cmd/mesh-builder/holder.go

@@ -1,433 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/nats-io/nats.go/micro"
-
-	"github.com/novox/mesh-controller/internal/builder"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// What a holder of the build seat answers for, on its own machine (novox/hq ADR 0219).
-//
-// **The queue is the controller's; the build running here is this machine's.** The controller can
-// see and change what waits in the seat's queue, but an ask a holder already took is a process tree
-// on this machine and containers in this machine's runtime, and only this machine can end them. So
-// the holder serves four verbs on the seat's subjects for this machine: what it is building, kill
-// it, pause, resume.
-//
-// **One build at a time** (ADR 0190), which is also what builder.Said assumes — a package global
-// set per build — so "the build running here" is one or none, and kill names it by id so a call
-// that arrives as one build ends and the next begins cannot end the wrong one.
-
-// holder is this machine's state as a holder of the build seat.
-type holder struct {
-	on, seat string
-	// workspace is where the paused flag is kept, so a holder restarted while paused stays paused
-	// rather than silently taking work again.
-	workspace string
-	// say publishes this machine's state: whether it takes work (link.HolderState).
-	say func(link.HolderState) error
-	// remove runs what a kill needs outside the build: the containers left behind.
-	remove builder.Runner
-	// scratch is where check builds are kept (novox/hq ADR 0350 §5): what the week's sweep lets go of. Nil where
-	// this machine publishes to no artifact store.
-	scratch builder.Scratch
-
-	mu      sync.Mutex
-	paused  bool
-	running *running
-}
-
-// running is the build this machine is doing.
-type running struct {
-	request link.BuildRequest
-	step    string
-	started time.Time
-	cancel  context.CancelFunc
-	killed  bool
-	// returned is the build's own work having ended, before a kill or not; outcome is what was then
-	// announced, and announced whether it went out.
-	returned  bool
-	outcome   string
-	announced bool
-	done      chan struct{}
-}
-
-// pausedFile is where the flag lives in the workspace.
-func pausedFile(workspace string) string { return filepath.Join(workspace, ".mesh-builder-paused") }
-
-// newHolder reads the paused flag the workspace keeps.
-func newHolder(on, seat, workspace string, say func(link.HolderState) error) *holder {
-	h := &holder{on: on, seat: seat, workspace: workspace, say: say, remove: plainRun}
-	if _, err := os.Stat(pausedFile(workspace)); err == nil {
-		h.paused = true
-	}
-	return h
-}
-
-// Paused is asked by the taking loop before every fetch.
-func (h *holder) Paused() bool {
-	h.mu.Lock()
-	defer h.mu.Unlock()
-	return h.paused
-}
-
-// setPaused records the flag in the workspace first and then in memory, so what this holder says
-// it is and what it would be after a restart never differ.
-func (h *holder) setPaused(paused bool) error {
-	path := pausedFile(h.workspace)
-	if paused {
-		if err := os.MkdirAll(h.workspace, 0o755); err != nil {
-			return err
-		}
-		if err := os.WriteFile(path, []byte(time.Now().UTC().Format(time.RFC3339)+"\n"), 0o644); err != nil {
-			return fmt.Errorf("cannot keep the paused flag in %s: %w", path, err)
-		}
-	} else if err := os.Remove(path); err != nil && !errors.Is(err, os.ErrNotExist) {
-		return fmt.Errorf("cannot remove the paused flag %s: %w", path, err)
-	}
-	h.mu.Lock()
-	h.paused = paused
-	h.mu.Unlock()
-	h.announce()
-	return nil
-}
-
-// announce says whether this machine takes work. Never fatal: the flag is kept either way, and the
-// controller reading an older state is a plan read as late rather than a build lost.
-func (h *holder) announce() {
-	if h.say == nil {
-		return
-	}
-	if err := h.say(link.HolderState{On: h.on, Paused: h.Paused(), At: time.Now().UTC().Format(time.RFC3339Nano)}); err != nil {
-		fmt.Fprintf(os.Stderr, "cannot say whether this machine takes builds: %v\n", err)
-	}
-}
-
-// stateWhilePaused says this machine's state at start, and again every while it stays paused, so
-// a pause outlives the events stream's retention.
-func (h *holder) stateWhilePaused(ctx context.Context, every time.Duration) {
-	h.announce()
-	tick := time.NewTicker(every)
-	defer tick.Stop()
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-tick.C:
-			if h.Paused() {
-				h.announce()
-			}
-		}
-	}
-}
-
-// expireChecks lets go of every check build older than a week (novox/hq ADR 0350 §5), at start and every while
-// after. Every holder sweeps the one store; what one let go of, another finds gone.
-func (h *holder) expireChecks(ctx context.Context, every time.Duration, now func() time.Time) {
-	sweep := func() {
-		if h.scratch == nil {
-			return
-		}
-		n, err := h.scratch.Expire(ctx, builder.CheckBuildsKept, now())
-		switch {
-		case err != nil:
-			fmt.Fprintf(os.Stderr, "check builds older than %s: %d let go of, and not all: %v\n", builder.CheckBuildsKept, n, err)
-		case n > 0:
-			fmt.Fprintf(os.Stderr, "check builds older than %s: %d check(s)' builds let go of\n", builder.CheckBuildsKept, n)
-		}
-	}
-	sweep()
-	tick := time.NewTicker(every)
-	defer tick.Stop()
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-tick.C:
-			sweep()
-		}
-	}
-}
-
-// begin records the build this machine took, with the cancel that ends it.
-func (h *holder) begin(request link.BuildRequest, cancel context.CancelFunc) *running {
-	r := &running{request: request, started: time.Now(), cancel: cancel, done: make(chan struct{})}
-	h.mu.Lock()
-	h.running = r
-	h.mu.Unlock()
-	return r
-}
-
-// end clears it, and lets a kill waiting on it know it is over.
-func (h *holder) end(r *running) {
-	h.mu.Lock()
-	if h.running == r {
-		h.running = nil
-	}
-	h.mu.Unlock()
-	close(r.done)
-}
-
-// stepped records the step a build is at, for `current`.
-func (h *holder) stepped(r *running, step string) {
-	h.mu.Lock()
-	r.step = step
-	h.mu.Unlock()
-}
-
-// currentBuild is what `current` answers.
-type currentBuild struct {
-	On      string `json:"on"`
-	Paused  bool   `json:"paused"`
-	Running *struct {
-		ID         string `json:"id"`
-		Repository string `json:"repository"`
-		Path       string `json:"path,omitempty"`
-		Ref        string `json:"ref,omitempty"`
-		Step       string `json:"step,omitempty"`
-		Started    string `json:"started"`
-		Elapsed    string `json:"elapsed"`
-	} `json:"running,omitempty"`
-	Said string `json:"said"`
-}
-
-func (h *holder) current() currentBuild {
-	h.mu.Lock()
-	defer h.mu.Unlock()
-	out := currentBuild{On: h.on, Paused: h.paused}
-	taking := "taking builds"
-	if h.paused {
-		taking = "paused, taking no new build"
-	}
-	if h.running == nil {
-		out.Said = fmt.Sprintf("%s is building nothing; %s", h.on, taking)
-		return out
-	}
-	r := h.running
-	elapsed := time.Since(r.started).Round(time.Second)
-	out.Running = &struct {
-		ID         string `json:"id"`
-		Repository string `json:"repository"`
-		Path       string `json:"path,omitempty"`
-		Ref        string `json:"ref,omitempty"`
-		Step       string `json:"step,omitempty"`
-		Started    string `json:"started"`
-		Elapsed    string `json:"elapsed"`
-	}{r.request.ID, r.request.Repository, r.request.Path, r.request.Ref, r.step,
-		r.started.UTC().Format(time.RFC3339), elapsed.String()}
-	out.Said = fmt.Sprintf("%s is building %s (%s) at %s for %s; %s",
-		h.on, r.request.Repository, r.request.ID, orNothing(r.step), elapsed, taking)
-	return out
-}
-
-// The bounds a kill keeps: each pass removing containers, and the wait for the build to end between
-// them. The worst case — 15s, 20s, 15s — is inside what the controller waits for the answer
-// (killAnswer in the controller's queue.go, 75s).
-var (
-	killRemoves = 15 * time.Second
-	killWaits   = 20 * time.Second
-)
-
-// kill ends the build with this id, if it is the one running here and still working: its context
-// cancelled — which kills each command's process group — and the containers it started removed by
-// their label, once at once and again after the build has ended, so one created while it was being
-// killed is not left. The build's own goroutine announces it failed, killed by hand, and settles the
-// ask so it is not redelivered; the answer says whether that happened.
-func (h *holder) kill(id string) (string, error) {
-	h.mu.Lock()
-	r := h.running
-	if r == nil || r.request.ID != id {
-		doing := "nothing"
-		if r != nil {
-			doing = r.request.ID
-		}
-		h.mu.Unlock()
-		return "", fmt.Errorf("%s is not building %s; it is building %s. `queue` says where an ask is", h.on, id, doing)
-	}
-	if r.returned {
-		h.mu.Unlock()
-		return "", fmt.Errorf("%s on %s has already ended on its own and is saying how; `builds` shows it", id, h.on)
-	}
-	r.killed = true
-	cancel, done := r.cancel, r.done
-	h.mu.Unlock()
-
-	cancel()
-	removed, removeErr := h.removeContainers(id)
-	ended := false
-	select {
-	case <-done:
-		ended = true
-	case <-time.After(killWaits):
-	}
-	again, againErr := h.removeContainers(id)
-	removed += again
-	if removeErr == nil {
-		removeErr = againErr
-	}
-	containers := fmt.Sprintf("%d container(s) it started removed", removed)
-	if removeErr != nil {
-		containers = "its containers could not all be listed or removed: " + removeErr.Error()
-	}
-	if !ended {
-		return fmt.Sprintf("killed %s on %s: %s; the build has not finished ending yet — `builds` says when "+
-			"its outcome is in", id, h.on, containers), nil
-	}
-	h.mu.Lock()
-	outcome, announced := r.outcome, r.announced
-	h.mu.Unlock()
-	if !announced {
-		return fmt.Sprintf("killed %s (%s) on %s: its commands ended and %s, and its outcome could not be "+
-			"announced — the ask is not settled and will be handed out again", id, r.request.Repository, h.on,
-			containers), nil
-	}
-	return fmt.Sprintf("killed %s (%s) on %s: its commands ended, %s, and its outcome announced as failed, %s — "+
-		"settled, so it is not handed to another machine", id, r.request.Repository, h.on, containers, outcome), nil
-}
-
-// removeContainers is one pass of removing what the build left, bounded.
-func (h *holder) removeContainers(id string) (int, error) {
-	cleanup, stop := context.WithTimeout(context.Background(), killRemoves)
-	defer stop()
-	return builder.RemoveContainersOf(cleanup, h.remove, id)
-}
-
-// removeLeftBehind removes, once, what earlier holders on this machine left — called before anything is
-// taken, so none of it is this holder's — and says what it did. A runtime that cannot be asked is said
-// and the holder takes work all the same: what is left is waste, not a reason to stop building.
-func (h *holder) removeLeftBehind() int {
-	cleanup, stop := context.WithTimeout(context.Background(), killRemoves)
-	defer stop()
-	n, err := builder.RemoveLeftBehind(cleanup, h.remove)
-	switch {
-	case err != nil:
-		fmt.Fprintf(os.Stderr, "could not look for containers earlier builds left on %s: %v\n", h.on, err)
-	case n > 0:
-		fmt.Fprintf(os.Stderr, "removed %d container(s) earlier builds left on %s\n", n, h.on)
-	}
-	return n
-}
-
-// returned records that the build's work ended, and says whether a kill came first — only then is
-// the build killed; an error it ended with on its own is its own outcome.
-func (h *holder) returned(r *running) bool {
-	h.mu.Lock()
-	defer h.mu.Unlock()
-	r.returned = true
-	return r.killed
-}
-
-// said records the outcome announced, and whether it went out, for a kill to answer with.
-func (h *holder) said(r *running, outcome string, announced bool) {
-	h.mu.Lock()
-	r.outcome, r.announced = outcome, announced
-	h.mu.Unlock()
-}
-
-// handlers are the seat's verbs, as this machine answers them.
-func (h *holder) handlers() map[string]link.ToolHandler {
-	return map[string]link.ToolHandler{
-		"current": func(context.Context, json.RawMessage) (any, error) { return h.current(), nil },
-		"kill": func(_ context.Context, raw json.RawMessage) (any, error) {
-			var args struct {
-				ID string `json:"id"`
-			}
-			if err := json.Unmarshal(raw, &args); err != nil || strings.TrimSpace(args.ID) == "" {
-				return nil, errors.New("kill needs the build's id")
-			}
-			said, err := h.kill(strings.TrimSpace(args.ID))
-			if err != nil {
-				return nil, err
-			}
-			return map[string]any{"said": said}, nil
-		},
-		"pause": func(context.Context, json.RawMessage) (any, error) {
-			if err := h.setPaused(true); err != nil {
-				return nil, err
-			}
-			said := h.on + " is paused: it takes no new build until resumed"
-			if c := h.current(); c.Running != nil {
-				said += "; " + c.Running.ID + " runs on and finishes"
-			}
-			return map[string]any{"said": said, "paused": true}, nil
-		},
-		"resume": func(context.Context, json.RawMessage) (any, error) {
-			if err := h.setPaused(false); err != nil {
-				return nil, err
-			}
-			return map[string]any{"said": h.on + " takes builds again", "paused": false}, nil
-		},
-	}
-}
-
-func orNothing(s string) string {
-	if s == "" {
-		return "its start"
-	}
-	return s
-}
-
-// plainRun runs a command outside any build: no line reaches a build's log, because the build whose
-// log it would be is the one being ended.
-func plainRun(ctx context.Context, dir, name string, args ...string) (string, error) {
-	cmd := exec.CommandContext(ctx, name, args...)
-	cmd.Dir = dir
-	out, err := cmd.CombinedOutput()
-	if err != nil {
-		return string(out), fmt.Errorf("%s %s: %w: %s", name, strings.Join(args, " "), err, strings.TrimSpace(string(out)))
-	}
-	return string(out), nil
-}
-
-// announcement is what this holder answers discovery with (novox/hq ADR 0195, ADR 0197): this
-// machine's verbs of the seat, in the shape every tool runtime announces a seat's verb — kind seat,
-// the module answering, the seat, scope node, the machine, its description and argument schema — so
-// the console finds `<node>/node-build-agent.kill` by searching, as it finds any seat's verb.
-//
-// One service per machine, named for the seat and identified by the machine, so the answer is this
-// machine's four verbs and nothing more. The verbs are the compiled seat row's: a build machine has no
-// store, and what it serves is what this binary was built to serve.
-func announcement(seat, module, node string) micro.Info {
-	s, _ := catalogue.SeatNamed(seat)
-	var endpoints []micro.EndpointInfo
-	for _, v := range s.Serves {
-		schema, _ := json.Marshal(v.Input)
-		endpoints = append(endpoints, micro.EndpointInfo{
-			Name:    seat + "__" + v.Name,
-			Subject: link.NodeSeatToolSubject(seat, v.Name, node),
-			// The queue group the verbs are served in, as every runtime announces its own.
-			QueueGroup: "seat." + seat,
-			Metadata: map[string]string{
-				"kind": "seat", "module": module, "tool": v.Name, "seat": seat, "scope": "node",
-				"node": node, "interchangeable": "false", "description": v.Description, "schema": string(schema),
-			},
-		})
-	}
-	return micro.Info{
-		ServiceIdentity: micro.ServiceIdentity{Name: seat, ID: node, Version: "0.1.0",
-			Metadata: map[string]string{"seat": seat, "scope": "node", "node": node, "module": module}},
-		Description: "what the build running on " + node + " is, and ending, pausing and resuming it (novox/hq ADR 0219)",
-		Endpoints:   endpoints,
-	}
-}
-
-// moduleOf is the module a credential was issued for: its user is `<node>.<module>`.
-func moduleOf(user string) string {
-	if _, module, ok := strings.Cut(user, "."); ok && module != "" {
-		return module
-	}
-	return "build-agent"
-}

cmd/mesh-builder/holder_test.go

@@ -1,172 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// A holder paused stays paused across its restart: the flag is kept in its workspace (novox/hq ADR
-// 0219), and what it says about itself follows.
-func TestAPausedHolderStaysPausedAcrossARestart(t *testing.T) {
-	workspace := t.TempDir()
-	var said []link.HolderState
-	h := newHolder("ace", link.TheBuildMachine, workspace, func(s link.HolderState) error {
-		said = append(said, s)
-		return nil
-	})
-	if h.Paused() {
-		t.Fatal("a new holder starts paused")
-	}
-	if _, err := h.handlers()["pause"](context.Background(), json.RawMessage(`{}`)); err != nil {
-		t.Fatal(err)
-	}
-	if !h.Paused() || len(said) != 1 || !said[0].Paused || said[0].On != "ace" {
-		t.Fatalf("paused: %v, said %+v", h.Paused(), said)
-	}
-	again := newHolder("ace", link.TheBuildMachine, workspace, nil)
-	if !again.Paused() {
-		t.Fatal("restarted, the holder forgot it was paused")
-	}
-	if _, err := again.handlers()["resume"](context.Background(), json.RawMessage(`{}`)); err != nil {
-		t.Fatal(err)
-	}
-	if newHolder("ace", link.TheBuildMachine, workspace, nil).Paused() {
-		t.Fatal("resumed, the holder came back paused")
-	}
-}
-
-// kill ends the build with that id — its context, which ends its commands — removes what it left by
-// label, and refuses an id it is not building.
-func TestKillEndsTheBuildRunningHereAndNoOther(t *testing.T) {
-	h := newHolder("ace", link.TheBuildMachine, t.TempDir(), nil)
-	var removed []string
-	h.remove = func(_ context.Context, _ string, name string, args ...string) (string, error) {
-		removed = append(removed, name+" "+strings.Join(args, " "))
-		if args[0] == "ps" {
-			return "c1\n", nil
-		}
-		return "", nil
-	}
-	kill := h.handlers()["kill"]
-	if _, err := kill(context.Background(), json.RawMessage(`{"id":"build-1"}`)); err == nil {
-		t.Fatal("killed a build while none ran")
-	}
-
-	building, cancel := context.WithCancel(context.Background())
-	r := h.begin(link.BuildRequest{ID: "build-1", Repository: "novox/a"}, cancel)
-	h.stepped(r, "image")
-	if c := h.current(); c.Running == nil || c.Running.ID != "build-1" || c.Running.Step != "image" {
-		t.Fatalf("current says %+v", c)
-	}
-	if _, err := kill(context.Background(), json.RawMessage(`{"id":"build-2"}`)); err == nil ||
-		!strings.Contains(err.Error(), "build-1") {
-		t.Fatalf("killed another id: %v", err)
-	}
-	// The build's own goroutine: it ends when its context does, as a build's commands do, and
-	// announces what came of it.
-	go func() {
-		<-building.Done()
-		if h.returned(r) {
-			h.said(r, link.KilledByHand, true)
-		}
-		h.end(r)
-	}()
-	answer, err := kill(context.Background(), json.RawMessage(`{"id":"build-1"}`))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if building.Err() == nil {
-		t.Fatal("the build's context was not cancelled")
-	}
-	if !r.killed {
-		t.Error("the build is not marked killed, so it would be announced as an ordinary failure")
-	}
-	said := answer.(map[string]any)["said"].(string)
-	if !strings.Contains(said, "2 container(s)") || !strings.Contains(said, "announced as failed") || !strings.Contains(said, link.KilledByHand) {
-		t.Errorf("kill said %q", said)
-	}
-	// Removed at the kill and again once the build had ended: a container made in between is caught.
-	if len(removed) != 4 || !strings.Contains(removed[0], "label=mesh.build=build-1") || !strings.Contains(removed[2], "label=mesh.build=build-1") {
-		t.Errorf("removed %v", removed)
-	}
-	if c := h.current(); c.Running != nil {
-		t.Errorf("after the kill current says %+v", c)
-	}
-}
-
-// A holder announces this machine's verbs of the seat as the console reads a seat's verb, and no more.
-func TestAHolderAnnouncesItsMachinesVerbsForTheConsole(t *testing.T) {
-	info := announcement(link.TheBuildMachine, moduleOf("ace.build-agent"), "ace")
-	if info.Name != "node-build-agent" || info.ID != "ace" || len(info.Endpoints) != 4 {
-		t.Fatalf("announced %s/%s with %d endpoints", info.Name, info.ID, len(info.Endpoints))
-	}
-	kill := info.Endpoints[1]
-	md := kill.Metadata
-	if kill.Subject != "mesh.seat.node-build-agent.tool.kill.ace" || kill.QueueGroup != "seat.node-build-agent" || md["kind"] != "seat" || md["seat"] != "node-build-agent" ||
-		md["scope"] != "node" || md["node"] != "ace" || md["tool"] != "kill" || md["module"] != "build-agent" ||
-		!strings.Contains(md["description"], "killed by hand") || !strings.Contains(md["schema"], `"id"`) {
-		t.Fatalf("kill is announced as %+v", kill)
-	}
-	body, err := json.Marshal(info)
-	if err != nil || len(body) > 8*1024 {
-		t.Fatalf("the answer is %d bytes (%v)", len(body), err)
-	}
-}
-
-// A build that ended on its own as the kill arrived says what it did: the kill is refused, and its
-// own error is its outcome. One whose outcome could not be announced is not said to be settled.
-func TestAKillArrivingAfterTheBuildEndedIsRefusedAndAnUnannouncedKillSaysSo(t *testing.T) {
-	h := newHolder("ace", link.TheBuildMachine, t.TempDir(), nil)
-	h.remove = func(context.Context, string, string, ...string) (string, error) { return "", nil }
-	_, cancel := context.WithCancel(context.Background())
-	r := h.begin(link.BuildRequest{ID: "build-1"}, cancel)
-	if killed := h.returned(r); killed {
-		t.Fatal("a build nobody killed reads as killed")
-	}
-	if _, err := h.kill("build-1"); err == nil || !strings.Contains(err.Error(), "ended on its own") {
-		t.Fatalf("killed a build that had ended: %v", err)
-	}
-	h.end(r)
-
-	building, cancel := context.WithCancel(context.Background())
-	r = h.begin(link.BuildRequest{ID: "build-2"}, cancel)
-	go func() {
-		<-building.Done()
-		if h.returned(r) {
-			h.said(r, link.KilledByHand, false)
-		}
-		h.end(r)
-	}()
-	said, err := h.kill("build-2")
-	if err != nil || strings.Contains(said, "announced as failed") || !strings.Contains(said, "could not be announced") {
-		t.Fatalf("kill said %q (%v)", said, err)
-	}
-}
-
-// **Issue 306**: a holder starting removes the containers earlier builds left on its machine, through
-// the runner a kill uses, and a runtime that cannot be asked does not stop it.
-func TestAHolderStartingRemovesWhatEarlierBuildsLeftHere(t *testing.T) {
-	h := newHolder("novox", link.TheBuildMachine, t.TempDir(), nil)
-	var removed []string
-	h.remove = func(_ context.Context, _ string, name string, args ...string) (string, error) {
-		removed = append(removed, name+" "+strings.Join(args, " "))
-		if args[0] == "ps" {
-			return "c1 build-1\nc2 build-1\nc3 check-here-2\n", nil
-		}
-		return "", nil
-	}
-	if n := h.removeLeftBehind(); n != 2 || len(removed) != 2 || removed[1] != "docker rm -f c1 c2" {
-		t.Fatalf("removed %d: %v", n, removed)
-	}
-	h.remove = func(context.Context, string, string, ...string) (string, error) {
-		return "", errors.New("no runtime")
-	}
-	if n := h.removeLeftBehind(); n != 0 {
-		t.Errorf("a runtime that cannot be asked removed %d", n)
-	}
-}

cmd/mesh-builder/main.go

@@ -18,20 +18,12 @@ package main
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
-	"log"
 	"net/url"
 	"os"
 	"os/signal"
-	"sort"
 	"strings"
-	"sync"
-	"sync/atomic"
 	"syscall"
-	"time"
-
-	"github.com/nats-io/nats.go"
 
 	"github.com/novox/mesh-controller/internal/broker"
 	"github.com/novox/mesh-controller/internal/builder"
@@ -58,8 +50,6 @@ is dialled except the broker.
   MESH_BINDING       a file the mesh wrote saying where the artifact store is
   MESH_PACKAGE_BINDING  a file the mesh wrote saying where the package registry is
   MESH_NPM_TOKEN_FILE   a file the mesh sealed holding the token for it
-  MESH_GENESIS_PACKAGE_REGISTRY  the document the installer sealed at genesis, read while no
-                     binding is present (novox/hq ADR 0336)
   MESH_NPM_REGISTRY  a package registry URL, when the mesh has not said (a person, the bootstrap)
   MESH_NPM_TOKEN     the token for it, likewise
   MESH_NPM_SCOPE     the scope it answers for (default: @novox)
@@ -72,17 +62,6 @@ broker to take work from or a registry to publish into:
 
 Without --registry the artifacts stay in this machine's container runtime, named by the
 digest of their own configuration. The result is printed as JSON.
-
-  mesh-builder ready
-
-exits 0 once the agent running in this container is bound to its build work and pulls it, and
-1 before: its container's health check.
-
-  mesh-builder busy
-
-exits 0 while the agent running in this container has a build in hand, and 1 when it has none;
-from the first ask the agent takes no new build: its container's busy command, asked before the
-container is replaced (novox/hq ADR 0335).
 `
 
 func run() error {
@@ -93,42 +72,12 @@ func run() error {
 			return nil
 		case "build":
 			return buildOnce(context.Background(), os.Args[2:])
-		case "ready":
-			// The container's health check (novox/hq issue 544): exits non-zero until the agent takes work, and
-			// once it has been drained longer than its node-engine would wait to replace it (ADR 0335).
-			if err := ready(); err != nil {
-				return err
-			}
-			return drainedTooLong(time.Now())
-		case "busy":
-			// The container's busy command (novox/hq ADR 0335): drains the agent, and exits non-zero once
-			// nothing is in hand.
-			said, err := busy()
-			if err != nil {
-				return err
-			}
-			fmt.Println(said)
-			return nil
-		case "help", "-h", "--help":
+		default:
 			fmt.Print(usage)
 			return nil
-		default:
-			// **An ask this build does not know fails** (novox/hq ADR 0335): an image older than `busy`, asked
-			// it, must read as idle — exiting 0 would hold its container for the node-engine's whole bound.
-			fmt.Fprint(os.Stderr, usage)
-			return fmt.Errorf("%q is not a command this mesh-builder knows", os.Args[1])
 		}
 	}
 
-	if err := notReady(); err != nil {
-		return err
-	}
-	// **The builder's own version is part of every reuse key** (novox/hq ADR 0350 §1): a builder that builds
-	// differently never takes a build another one made.
-	builder.Version = builder.SelfVersion(version)
-	if err := undrained(); err != nil {
-		return err
-	}
 	credential, err := brokerFrom()
 	if err != nil {
 		return err
@@ -158,112 +107,48 @@ func run() error {
 	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
 	defer stop()
 
-	js, seat, err := dialFor(credential)
+	machine, err := takeWorkFrom(credential, on)
 	if err != nil {
 		return err
 	}
-	defer js.Close()
-
-	// **This machine's holder: paused or not, and the build it is running** (novox/hq ADR 0219). The
-	// paused flag is read from the workspace before anything is taken, so a holder restarted while
-	// paused takes nothing.
-	h := newHolder(on, seat, workspace, func(state link.HolderState) error {
-		body, err := json.Marshal(state)
-		if err != nil {
-			return err
-		}
-		_, err = js.Context().Publish(link.BuildPausedOf(seat, on), body)
-		return err
-	})
-	if h.Paused() {
-		fmt.Fprintf(os.Stderr, "paused (kept in %s): taking no build until resumed\n", pausedFile(workspace))
-	}
-	// **What an earlier holder here left goes before anything is taken** (novox/hq issue 306): a holder
-	// recreated mid-check left the check's store and bus running, and the ask went to another machine.
-	h.removeLeftBehind()
-	// Paused or drained, it takes nothing new (novox/hq ADR 0219, ADR 0335): a drained agent finishes the build
-	// in hand and then says idle, and its container is replaced between builds.
-	machine := link.MachineOverNATSWith(js, on, seat, link.MachineOptions{
-		Paused: func() bool { return h.Paused() || drained() },
-		Taking: func() { taking(seat) },
-		Claim:  claim,
-	})
 	defer machine.Close()
 
-	// The seat's verbs, on this machine's subjects. Only the seat that declares them: the retired
-	// one serves none, and a subscription its holder has no grant for would be refused for ever.
-	if seat == link.TheBuildMachine {
-		stopServing, err := link.OverNATS{Conn: js.Conn()}.ServeNodeSeatTools(seat, on, h.handlers(),
-			log.New(os.Stderr, "", 0))
-		if err != nil {
-			return err
-		}
-		defer stopServing()
-		// And says so, for the console to find (novox/hq ADR 0197).
-		stopAnnouncing, err := link.OverNATS{Conn: js.Conn()}.Announce(
-			announcement(seat, moduleOf(credential.User), on), log.New(os.Stderr, "", 0))
-		if err != nil {
-			return err
-		}
-		defer stopAnnouncing()
-		go h.stateWhilePaused(ctx, time.Hour)
-	}
-
 	fmt.Fprintf(os.Stderr, "building for the mesh, publishing to %s\n", registry)
 	publisher := builder.Registry{Address: registry, Run: builder.Command}
-	// Check builds are let go of after a week (novox/hq ADR 0350 §5).
-	h.scratch = publisher
-	go h.expireChecks(ctx, time.Hour, time.Now)
 
 	return machine.Take(ctx, func(ctx context.Context, work link.Build) {
-		defer released()
-		holding(work.Request().Repository + " (" + work.Request().ID + ")")
-		answer(ctx, publisher, on, workspace, work, h)
+		answer(ctx, publisher, on, workspace, work)
 	})
 }
 
-// dialFor opens this machine's link to whichever bus the mesh is on, and says which build seat it
-// holds.
+// takeWorkFrom opens this machine's link to whichever bus the mesh is on.
 //
 // **One place chooses**, as everywhere else the bus change went (novox/hq ADR 0116 step 5): a build
 // machine told about both would take work from one and answer on the other, and every log line would
 // say it was fine.
-func dialFor(credential Credential) (*broker.JetStream, string, error) {
+func takeWorkFrom(credential Credential, on string) (link.BuildMachine, error) {
 	// **The credential names the bus, and there is one** (novox/hq ADR 0131, design 28 task 5.5).
 	// A credential for the mesh's bus carries user, password and fingerprint beside the address,
 	// and that is enough to dial it, pinned.
 	if !credential.onTheNewBus() {
-		return nil, "", fmt.Errorf("the credential at hand names %q, which is not the mesh's bus", credential.URL)
+		return nil, fmt.Errorf("the credential at hand names %q, which is not the mesh's bus", credential.URL)
 	}
-	// Named for what it is, not the controller whose code dials it (novox/hq issue 327).
-	host, _ := os.Hostname()
-	js, err := broker.DialPinned(credential.natsURL(), credential.Fingerprint, nats.Name("build agent on "+host))
+	js, err := broker.DialPinned(credential.natsURL(), credential.Fingerprint)
 	if err != nil {
-		return nil, "", err
+		return nil, err
 	}
 	// **The seat this machine serves is the one its credential claims** (novox/hq ADR 0190, the
 	// handover): the mesh issues a build machine's credential naming the seat its module claims,
 	// and one binary serves the old role as `builder` and the new as `build-agent` from that alone.
 	seat := link.BuildSeatClaimed(credential.seatsClaimed())
 	fmt.Fprintf(os.Stderr, "taking build work as a holder of %s\n", seat)
-	return js, seat, nil
+	return link.MachineOverNATSOn(js, on, seat), nil
 }
 
 // answer does one build and says what happened, whichever way it went.
-func answer(ctx context.Context, publisher builder.Publisher, on, workspace string, work link.Build, h *holder) {
+func answer(ctx context.Context, publisher builder.Publisher, on, workspace string, work link.Build) {
 	request := work.Request()
 
-	// **Its own context, so it can be killed alone** (novox/hq ADR 0219): cancelled by `kill`, it ends
-	// this build's commands and nothing else; the machine's own context ending — a SIGTERM — still
-	// reaches it through the parent, and that keeps today's meaning below.
-	building, cancel := context.WithCancel(ctx)
-	defer cancel()
-	var mine *running
-	if h != nil {
-		mine = h.begin(request, cancel)
-		defer h.end(mine)
-	}
-
 	// **First thing, and to stdout.** A build request that arrives and produces no visible line until
 	// it either finishes or fails is indistinguishable from one that never arrived — which cost a long
 	// diagnosis against a running mesh, chasing "the handler never fired" when the truth was only that
@@ -274,47 +159,19 @@ func answer(ctx context.Context, publisher builder.Publisher, on, workspace stri
 	// role's own events under the build's id (novox/hq ADR 0157) — so whoever asked, and anybody
 	// watching, reads the same lines this container's log holds, live, and after the fact from the
 	// stream. Said first, before anything runs, so a build that hangs is one that visibly started.
-	// One line at a time: a check's builds for its merge say their lines while its tests say theirs (novox/hq
-	// issue 716).
-	var saying sync.Mutex
 	say := func(step, message string) {
-		saying.Lock()
-		defer saying.Unlock()
 		fmt.Fprintf(os.Stderr, "  [%s] %s\n", step, message)
 		work.Say(step, message)
-		if mine != nil && step != "run" && step != "output" {
-			h.stepped(mine, step)
-		}
 	}
 	builder.Said = say
 	defer func() { builder.Said = nil }()
 	if err := work.Began(ctx); err != nil {
 		fmt.Fprintf(os.Stderr, "cannot say a build started: %v\n", err)
 	}
-	// **A running check watches its pull request's key** (novox/hq ADR 0406 §4, issue 974): when the head or the trunk
-	// commit in it moves, the check is for a state nobody wants any more, and ends itself — nothing is asked of the forge
-	// (issue 726). A group's check, a try and a build watch nothing.
-	var superseded atomic.Bool
-	if w, ok := work.(interface {
-		WatchPull(context.Context, func(link.PullKey)) (func(), error)
-	}); ok && request.Check != nil {
-		stopWatching, err := w.WatchPull(building, func(k link.PullKey) {
-			superseded.Store(true)
-			say("superseded", fmt.Sprintf("the pull request's key moved to %.12s on %.12s while this checked %.12s on %.12s: stopped",
-				k.Head, k.Trunk, request.Ref, request.Check.Trunk))
-			cancel()
-		})
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "the key of %s/%s#%d could not be watched, so its check runs on if the key moves: %v\n",
-				request.Check.Owner, request.Check.Repo, request.Check.Number, err)
-		} else {
-			defer stopWatching()
-		}
-	}
 
 	result := link.BuildResult{
 		ID: request.ID, Repository: request.Repository, Path: request.Path,
-		Ref: request.Ref, On: on, Source: request.Source, DryRun: request.DryRun,
+		Ref: request.Ref, On: on, Source: request.Source,
 	}
 	what := "building " + request.Repository
 	if request.Path != "" {
@@ -325,99 +182,21 @@ func answer(ctx context.Context, publisher builder.Publisher, on, workspace stri
 	}
 	say("build", what)
 
-	npmrc, err := packagesFrom(on)
-	if err == nil {
-		say("packages", saysRegistry(npmrc))
-	}
-	registryHere, isRegistry := publisher.(builder.Registry)
+	npmrc, err := packagesFrom()
 	var built builder.Result
-	if request.Check != nil {
-		// **A pull request's merge check, not a build** (novox/hq to-be 45 §9): nothing is built,
-		// published or registered; the verdict is the outcome.
-		result.Checked = request.Check
-		registry := ""
-		if r, ok := publisher.(builder.Registry); ok {
-			registry = r.Address
-		}
-		spec := checkSpecOf(request)
-		// The judge cache the build agent declares as its own data, never in the workspace: only judge builds and
-		// mesh-lab's replays mount it, never a check's containers, so no pull request's script can write what a judge
-		// is built with or kept as, or what the replays run (novox/hq ADR 0358 §6, issue 709).
-		spec.JudgeCache = judgeCache()
-		// What the merge would move, built by the check for the walk to take (novox/hq ADR 0350 §1): into the
-		// scratch namespace. **Never with the package registry's credential**: this is code nobody has approved
-		// yet, and a recipe could read the credential it is handed (issue 462). A module that resolves packages
-		// at build time has no reuse key anyway, so nothing is lost by refusing it here.
-		if isRegistry && len(spec.Builds) > 0 {
-			spec.BuildWith = &builder.CheckBuilding{Publish: publisher, Scratch: registryHere, Held: request.Held,
-				Running: request.Check.Running, Seats: request.Seats, Named: namedOf(request.Check.Named)}
-		}
-		var v builder.CheckVerdict
-		v, err = builder.Check(building, builder.Command, spec, workspace, registry, forgeFrom(), say)
-		if err == nil {
-			result.Check = &link.CheckOutcome{Verdict: v.Verdict, Summary: v.Summary, Report: v.Report,
-				Took: v.Took.Round(time.Second).String(), Gate: layerOf(v.Gate), RepoCheck: layerOf(v.Repo),
-				Head: v.Head, Trunk: v.Trunk, Beside: v.Beside, Built: checkBuiltOf(v.Built),
-				Validator: v.Validator, Siblings: siblingsOut(v.Siblings), SiblingsUnknown: v.SiblingsUnknown, JudgeFrom: v.JudgeFrom}
-			// What each of a group's heads was judged as (novox/hq ADR 0323 §6).
-			for _, m := range v.Members {
-				result.Check.Members = append(result.Check.Members, link.CheckedMember{Owner: m.Owner, Repo: m.Repo,
-					Commit: m.Head, Trunk: m.Trunk})
-			}
-			// A branch tried before its pull request reads its outcome from this log, whole (novox/hq issue 686).
-			if request.Check.Try {
-				if line, err := json.Marshal(triedOf(v)); err == nil {
-					say(link.StepTried, string(line))
-				}
-			}
-		}
-	} else if err == nil {
+	if err == nil {
 		// The package-registry credential is a build input, so it is resolved before the clone: a
 		// build that could not have resolved its dependencies is refused in front of the reason, not
 		// after a clone that then fails at npm ci.
-		// Every container it starts is labelled with its id, so a kill finds what outlived the
-		// docker client (ADR 0219).
-		if request.Reuse != nil && isRegistry && !request.DryRun {
-			// **A walk's build takes the check's build of the same key** (novox/hq ADR 0350 §2).
-			reuse := builder.Reuse{Scratch: registryHere}
-			for _, p := range request.Reuse.Pulls {
-				reuse.Pulls = append(reuse.Pulls, builder.PullRef{Owner: p.Owner, Repo: p.Repo, Number: p.Number})
-			}
-			// Only what a verdict names is taken (ADR 0350 §2).
-			reuse.Named = namedOf(request.Reuse.Builds)
-			built, err = builder.BuildReusing(building, builder.Labelled(builder.Command, request.ID), publisher, reuse,
-				request.Repository, request.Path, request.Ref, workspace, request.Held, npmrc,
-				forgeFrom(), say, request.Seats)
-		} else {
-			built, err = builder.Build(building, builder.Labelled(builder.Command, request.ID), publisher,
-				request.Repository, request.Path, request.Ref, workspace, request.Held, npmrc,
-				forgeFrom(), say, request.Seats)
-		}
+		built, err = builder.Build(ctx, builder.Command, publisher,
+			request.Repository, request.Path, request.Ref, workspace, request.Held, npmrc,
+			forgeFrom(), say, request.Seats)
 	}
-	// What it copied into the store, whatever became of the build (novox/hq ADR 0257).
-	result.Mirrored = built.Mirrored
-	// Only a build the kill ended: the kill came before its work did. One that finished — built, or
-	// failed on its own — in the moment the kill arrived says what it did, and the kill is refused.
-	killed := false
-	if mine != nil {
-		killed = h.returned(mine) && err != nil
-	}
-	if superseded.Load() && err != nil {
-		// Ended by its own key moving on (ADR 0406 §4): said as the check's failure, as a kill is.
-		result.Failed = link.SupersededByKey
-		say("failed", link.SupersededByKey)
-	} else if killed {
-		// **Killed by hand is the outcome, whatever the build was doing** (novox/hq ADR 0219): the
-		// error it ended with is the kill's consequence, not a fault of the source.
-		result.Failed = link.KilledByHand
-		say("failed", link.KilledByHand)
-	} else if err != nil {
+	if err != nil {
 		// A failure is a result. A build that fails and says nothing is indistinguishable from a
 		// builder that is not running, and those want completely different responses.
 		result.Failed = err.Error()
 		say("failed", err.Error())
-	} else if request.Check != nil {
-		say("checked", result.Check.Verdict+": "+result.Check.Summary)
 	} else {
 		manifest, marshalErr := json.Marshal(built.Manifest)
 		if marshalErr != nil {
@@ -431,51 +210,14 @@ func answer(ctx context.Context, publisher builder.Publisher, on, workspace stri
 				})
 			}
 			result.Against = built.Against
-			result.SourceFingerprint = built.Source
-			// What the walk did instead of building, or why it built (novox/hq ADR 0350 §3, §4).
-			result.ReuseKey = built.ReuseKey
-			if built.Reused != nil {
-				f := built.Reused.From
-				result.Reused = built.Reused.Words()
-				result.ReusedFrom = &link.ReusedFrom{Pull: link.PullRef{Owner: f.Pull.Owner, Repo: f.Pull.Repo,
-					Number: f.Pull.Number}, Head: f.Head, Trunk: f.Trunk, Check: f.Check, Key: f.Key}
-			} else if request.Reuse != nil {
-				result.BuiltWhy = built.Why
-				if result.BuiltWhy == "" {
-					result.BuiltWhy = "it has no artifact to build"
-				}
-			}
-			result.Trunk, result.OnTrunk, result.Branches = built.Trunk, built.OnTrunk, built.Branches
 			for _, r := range built.Read {
 				result.Read = append(result.Read, link.ReadRepository{Repository: r.Repository, Ref: r.Ref})
 			}
-			for _, s := range built.Sources {
-				result.Sources = append(result.Sources, link.BuildSource{Repository: s.Repository, Ref: s.Ref, Paths: s.Paths})
-			}
-			// The list of predefined keys the manifest was judged against, for the controller to publish
-			// (novox/hq ADR 0348 §7).
-			if p := built.Predefined; p != nil {
-				result.Predefined = &link.PredefinedList{Keys: p.Keys, Generation: p.Generation}
-			}
 			say("built", built.Manifest.Module+" from "+short(built.Commit))
 		}
 	}
 
-	// A killed build is announced on a context of its own: the build's was the one cancelled, and the
-	// outcome must go out and the ask be settled — acknowledged, never redelivered to another machine
-	// to be built again. A machine being stopped is the other case and keeps its meaning: the
-	// parent's context is gone, nothing is announced or settled, and the ask is redelivered.
-	announcing := ctx
-	if killed {
-		fresh, stop := context.WithTimeout(context.Background(), 30*time.Second)
-		defer stop()
-		announcing = fresh
-	}
-	announceErr := work.Announce(announcing, result)
-	if mine != nil {
-		h.said(mine, result.Failed, announceErr == nil)
-	}
-	if err := announceErr; err != nil {
+	if err := work.Announce(ctx, result); err != nil {
 		// Said, not fatal: the build happened. A build reported as failed because announcing it
 		// failed is a lie about work that was done — and the request stays unsettled below only if
 		// nothing was said at all, so another machine can try.
@@ -490,268 +232,80 @@ func answer(ctx context.Context, publisher builder.Publisher, on, workspace stri
 	}
 }
 
-// checkSpecOf is a check request as the builder runs it.
-func checkSpecOf(request link.BuildRequest) builder.CheckSpec {
-	c := request.Check
-	spec := builder.CheckSpec{ID: request.ID, Repository: request.Repository, Ref: request.Ref,
-		Owner: c.Owner, Repo: c.Repo, Number: c.Number, Paths: c.Paths, Beside: map[string]builder.Beside{},
-		Modules: c.Modules, New: c.New, Manifests: c.Manifests, Judge: c.Judge, Base: c.Base,
-		Toolchain: builder.ToolchainOf(request.Held), Toolchains: builder.ToolchainsOf(request.Held),
-		Tests: c.Tests, StoreOnly: c.StoreOnly, SiblingsUnknown: c.SiblingsUnknown}
-	for _, s := range c.Siblings {
-		spec.Siblings = append(spec.Siblings, builder.Sibling{Repository: s.Repository, Number: s.Number, Head: s.Head,
-			Base: s.Base, Dir: s.Dir})
-	}
-	for dir, b := range c.Beside {
-		spec.Beside[dir] = builder.Beside{Repository: b.Repository, Ref: b.Ref}
-	}
-	for _, b := range c.Builds {
-		spec.Builds = append(spec.Builds, builder.CheckBuildSpec{Module: b.Module, Repository: b.Repository, Path: b.Path,
-			Ref: b.Ref, Merged: b.Merged, Tier: b.Tier, Skip: b.Skip})
-	}
-	for _, m := range c.Members {
-		spec.Group = append(spec.Group, builder.GroupHead{Owner: m.Owner, Repo: m.Repo, Repository: m.Repository,
-			Ref: m.Ref, Paths: m.Paths, Base: m.Base})
-	}
-	return spec
-}
-
-// siblingsOut is the siblings a check read as the outcome carries them (novox/hq ADR 0382 §4).
-func siblingsOut(read []builder.JudgedSibling) []link.CheckSibling {
-	var out []link.CheckSibling
-	for _, s := range read {
-		out = append(out, link.CheckSibling{Repository: s.Repository, Number: s.Number, Head: s.Head, Base: s.Base,
-			BaseCommit: s.BaseCommit})
-	}
-	return out
-}
-
-// judgeCache is the judge cache the build agent's manifest declares (MESH_JUDGE_CACHE, novox/hq ADR 0358 §6): a
-// directory mounted at the same path on the host, so a judge build's mounts name what the agent sees. Empty when the
-// agent declares none, and every judge is then built cold under its check's root.
-func judgeCache() string { return os.Getenv("MESH_JUDGE_CACHE") }
-
-// triedOf is a try's outcome as its log line says it (novox/hq issue 686): the repository's own check's verdict,
-// or the check's where that did not run — a head that does not merge — and the lines naming what failed.
-func triedOf(v builder.CheckVerdict) link.Tried {
-	t := link.Tried{Verdict: v.Verdict, Summary: v.Summary, Took: v.Took.Round(time.Second).String(),
-		Head: v.Head, Trunk: v.Trunk}
-	if v.Repo != nil && (v.Gate == nil || v.Gate.Verdict == "pass") {
-		t.Verdict, t.Summary = v.Repo.Verdict, v.Repo.Summary
-	}
-	if v.Repo != nil && v.Repo.Failed != "" {
-		t.Failed = strings.Split(v.Repo.Failed, "\n")
-	}
-	if t.Verdict == "" {
-		t.Verdict = "error"
-	}
-	return t
-}
-
-// namedOf are the builds the seat's verdicts name, as the builder believes a scratch record by them (novox/hq ADR
-// 0350 §2, issue 703): each module's key with every artifact's digest.
-func namedOf(builds []link.CheckedBuild) []builder.NamedBuild {
-	var out []builder.NamedBuild
-	for _, b := range builds {
-		named := builder.NamedBuild{Pull: builder.PullRef{Owner: b.Pull.Owner, Repo: b.Pull.Repo,
-			Number: b.Pull.Number}, Check: b.Check, Module: b.Built.Module, Key: b.Built.Key,
-			Digests: map[string]string{}}
-		for _, m := range b.Built.Made {
-			named.Digests[m.Name] = builder.DigestOf(m.Reference)
-		}
-		out = append(out, named)
-	}
-	return out
-}
-
-// checkBuiltOf is a check's builds for its merge as the outcome carries them (novox/hq ADR 0350 §1).
-func checkBuiltOf(built []builder.CheckBuilt) []link.CheckBuilt {
-	var out []link.CheckBuilt
-	for _, b := range built {
-		c := link.CheckBuilt{Module: b.Module, Key: b.Key, NotBuilt: b.NotBuilt, Took: b.Took.Round(time.Second).String(),
-			Kept: b.Kept, Same: b.Same, SameAs: b.SameAs}
-		for _, m := range b.Made {
-			c.Made = append(c.Made, link.MadeArtifact{Name: m.Name, Kind: m.Kind, Reference: m.Reference})
-		}
-		out = append(out, c)
-	}
-	return out
-}
-
-// layerOf is one layer of a check as the outcome carries it.
-func layerOf(l *builder.Layer) *link.CheckLayer {
-	if l == nil {
-		return nil
-	}
-	return &link.CheckLayer{Verdict: l.Verdict, Summary: l.Summary, Modules: l.Modules}
-}
-
 // packagesFrom is where a build resolves the mesh's own published packages — the SDK above all
-// (novox/hq ADR 0076, issue 053) — on this machine.
+// (novox/hq ADR 0076, issue 053).
 //
-// **The binding wins, then the genesis document** (novox/hq ADR 0336 §3, §4). The build agent's
-// npm-package-registry requirement is optional: on genesis's node, before the gitea module is assigned,
-// nothing provides it, and the installer sealed the forge it raised to this agent as one document
-// instead. Once the requirement binds, the binding names the endpoint the way the artifact store's
-// does and a sealed token file the credential, and the genesis document is left unread. A binding
-// file named and absent is a requirement not bound here, never a fault: the environment names the
-// path whether or not the mesh wrote it.
-//
-// The environment variables remain for a builder run by a person. With none of the three the result
-// is disabled and says this machine, so a build that needs the registry is refused naming it (§6),
-// and a build that needs none builds anyway.
-func packagesFrom(machine string) (builder.Npmrc, error) {
+// Preferably from the mesh: a package-registry binding names the endpoint the way the artifact
+// store's binding does, and a sealed token file the credential the way the broker's does. The
+// environment variables remain for a builder run by a person, and for the bootstrap, where there is
+// no registry yet — there the result is disabled and a build that needs no mesh-published dependency
+// builds anyway.
+func packagesFrom() (builder.Npmrc, error) {
 	scope := strings.TrimSpace(os.Getenv("MESH_NPM_SCOPE"))
 	if scope == "" {
 		scope = "@novox"
 	}
-	none := builder.Npmrc{Machine: machine}
 
+	registry := strings.TrimSpace(os.Getenv("MESH_NPM_REGISTRY"))
+	var username string
 	if path := strings.TrimSpace(os.Getenv("MESH_PACKAGE_BINDING")); path != "" {
 		raw, err := os.ReadFile(path)
-		switch {
-		case errors.Is(err, os.ErrNotExist):
-			// Not bound on this machine: the genesis document, or nothing.
-		case err != nil:
-			return none, fmt.Errorf("cannot read what the mesh said about the package registry: %w", err)
-		default:
-			return fromBinding(path, raw, scope, machine)
-		}
-	}
-	if path := strings.TrimSpace(os.Getenv("MESH_GENESIS_PACKAGE_REGISTRY")); path != "" {
-		raw, err := os.ReadFile(path)
-		switch {
-		case errors.Is(err, os.ErrNotExist):
-			// Not this mesh's genesis node, or the installer has not sealed it yet.
-		case err != nil:
-			return none, fmt.Errorf("cannot read the genesis document for the package registry: %w", err)
-		default:
-			return fromGenesis(path, raw, scope, machine)
-		}
-	}
-
-	// A builder run by a person.
-	registry := strings.TrimSpace(os.Getenv("MESH_NPM_REGISTRY"))
-	secret := strings.TrimSpace(os.Getenv("MESH_NPM_TOKEN"))
-	username := strings.TrimSpace(os.Getenv("MESH_NPM_USER"))
-	if registry == "" && secret == "" {
-		return none, nil
-	}
-	n := builder.Npmrc{Scope: scope, Registry: registry, From: builder.FromEnvironment, Machine: machine}
-	if username != "" {
-		n.Username, n.Password = username, secret
-	} else {
-		n.Token = secret
-	}
-	return n, nil
-}
-
-// fromBinding composes the registry from the npm-package-registry binding the mesh wrote and the
-// credential it sealed beside it. The mesh authenticates the ordinary way — a generated password the
-// provider only applies (novox/hq ADR 0048) — so with a username the secret is a password (basic
-// auth); without one it is a bearer token a provider minted.
-func fromBinding(path string, raw []byte, scope, machine string) (builder.Npmrc, error) {
-	none := builder.Npmrc{Machine: machine}
-	var told struct {
-		From   string         `json:"from"`
-		At     string         `json:"at"`
-		As     string         `json:"as"`
-		Serves map[string]any `json:"serves"`
-	}
-	if err := json.Unmarshal(raw, &told); err != nil {
-		return none, fmt.Errorf("%s is not a binding: %w", path, err)
-	}
-	if told.At == "" {
-		return none, fmt.Errorf(
-			"%s says the package registry is on %q and gives no address for it", path, told.From)
-	}
-	// Composed from what the provider serves, so nothing here knows gitea's URL shape from
-	// another registry's: it states its port, the path its registry answers on, and the scheme.
-	scheme := "https"
-	if s, ok := told.Serves["scheme"]; ok {
-		scheme = fmt.Sprintf("%v", s)
-	}
-	port, ok := told.Serves["port"]
-	if !ok {
-		return none, fmt.Errorf("%s says nothing about which port the package registry answers on", path)
-	}
-	npmPath, ok := told.Serves["npm-path"]
-	if !ok {
-		return none, fmt.Errorf("%s says nothing about the path the package registry answers on", path)
-	}
-	secret := strings.TrimSpace(os.Getenv("MESH_NPM_TOKEN"))
-	if file := strings.TrimSpace(os.Getenv("MESH_NPM_TOKEN_FILE")); file != "" {
-		raw, err := os.ReadFile(file)
 		if err != nil {
-			return none, fmt.Errorf("cannot read this builder's package-registry credential: %w", err)
+			return builder.Npmrc{}, fmt.Errorf("cannot read what the mesh said about the package registry: %w", err)
+		}
+		var told struct {
+			From   string         `json:"from"`
+			At     string         `json:"at"`
+			As     string         `json:"as"`
+			Serves map[string]any `json:"serves"`
+		}
+		if err := json.Unmarshal(raw, &told); err != nil {
+			return builder.Npmrc{}, fmt.Errorf("%s is not a binding: %w", path, err)
+		}
+		if told.At == "" {
+			return builder.Npmrc{}, fmt.Errorf(
+				"%s says the package registry is on %q and gives no address for it", path, told.From)
+		}
+		// Composed from what the provider serves, so nothing here knows gitea's URL shape from
+		// another registry's: it states its port, the path its registry answers on, and the scheme.
+		scheme := "https"
+		if s, ok := told.Serves["scheme"]; ok {
+			scheme = fmt.Sprintf("%v", s)
+		}
+		port, ok := told.Serves["port"]
+		if !ok {
+			return builder.Npmrc{}, fmt.Errorf("%s says nothing about which port the package registry answers on", path)
+		}
+		npmPath, ok := told.Serves["npm-path"]
+		if !ok {
+			return builder.Npmrc{}, fmt.Errorf("%s says nothing about the path the package registry answers on", path)
+		}
+		registry = fmt.Sprintf("%s://%s:%v%v", scheme, told.At, port, npmPath)
+		username = told.As
+	}
+
+	// The credential the mesh sealed to this machine. The mesh authenticates the ordinary way — a
+	// generated password the provider only applies (novox/hq ADR 0048) — so with a username this is
+	// a password (basic auth); without one it is a bearer token a provider minted.
+	secret := strings.TrimSpace(os.Getenv("MESH_NPM_TOKEN"))
+	if path := strings.TrimSpace(os.Getenv("MESH_NPM_TOKEN_FILE")); path != "" {
+		raw, err := os.ReadFile(path)
+		if err != nil {
+			return builder.Npmrc{}, fmt.Errorf("cannot read this builder's package-registry credential: %w", err)
 		}
 		secret = strings.TrimSpace(string(raw))
 	}
-	n := builder.Npmrc{Scope: scope, Registry: fmt.Sprintf("%s://%s:%v%v", scheme, told.At, port, npmPath),
-		From: builder.FromBinding, Machine: machine}
-	if told.As != "" {
-		n.Username, n.Password = told.As, secret
-	} else {
-		n.Token = secret
+	if u := strings.TrimSpace(os.Getenv("MESH_NPM_USER")); u != "" {
+		username = u
 	}
-	return n, nil
-}
 
-// GenesisRegistry is the genesis document (novox/hq ADR 0336 §3): what the installer sealed to the
-// build agent on its node at genesis's packages step, as the `genesis-package-registry` own-secret —
-// the forge it raised, the port this node gave the package registry, its npm path, and the account it
-// made with that account's password. mesh-host writes it; the field names are the two repositories'
-// agreement.
-type GenesisRegistry struct {
-	Scheme   string `json:"scheme"`
-	At       string `json:"at"`
-	Port     int    `json:"port"`
-	NpmPath  string `json:"npm-path"`
-	As       string `json:"as"`
-	Password string `json:"password"`
-}
-
-// fromGenesis composes the registry from the genesis document.
-func fromGenesis(path string, raw []byte, scope, machine string) (builder.Npmrc, error) {
-	none := builder.Npmrc{Machine: machine}
-	var g GenesisRegistry
-	if err := json.Unmarshal(raw, &g); err != nil {
-		return none, fmt.Errorf("%s is not the genesis document for the package registry: %w", path, err)
+	if registry == "" && secret == "" {
+		return builder.Npmrc{}, nil
 	}
-	var missing []string
-	for name, value := range map[string]string{"at": g.At, "npm-path": g.NpmPath, "as": g.As, "password": g.Password} {
-		if strings.TrimSpace(value) == "" {
-			missing = append(missing, name)
-		}
+	if username != "" {
+		return builder.Npmrc{Scope: scope, Registry: registry, Username: username, Password: secret}, nil
 	}
-	if g.Port <= 0 {
-		missing = append(missing, "port")
-	}
-	if len(missing) > 0 {
-		sort.Strings(missing)
-		return none, fmt.Errorf("%s, the genesis document for the package registry, says nothing of %s",
-			path, strings.Join(missing, ", "))
-	}
-	scheme := g.Scheme
-	if scheme == "" {
-		scheme = "http"
-	}
-	return builder.Npmrc{Scope: scope, Registry: fmt.Sprintf("%s://%s:%d%s", scheme, g.At, g.Port, g.NpmPath),
-		Username: g.As, Password: g.Password, From: builder.FromGenesis, Machine: machine}, nil
-}
-
-// saysRegistry is the line each build's log carries about the package registry (novox/hq ADR 0336
-// §4): which of the binding and the genesis document it resolved from, or that it has neither here.
-func saysRegistry(n builder.Npmrc) string {
-	if n.Enabled() {
-		return "the package registry is resolved from " + n.From
-	}
-	machine := n.Machine
-	if machine == "" {
-		machine = "this machine"
-	}
-	return fmt.Sprintf("no package registry: %s is unbound on %s and no genesis document is here; "+
-		"a build needing it is refused", builder.RegistryRequirement, machine)
+	return builder.Npmrc{Scope: scope, Registry: registry, Token: secret}, nil
 }
 
 // forgeFrom is the git credential this builder may offer a clone, composed from the same binding

cmd/mesh-builder/once.go

@@ -84,15 +84,10 @@ func buildOnce(ctx context.Context, args []string) error {
 	}
 	fmt.Fprintln(os.Stderr)
 
-	machine := os.Getenv("MESH_NODE")
-	if machine == "" {
-		machine, _ = os.Hostname()
-	}
-	npmrc, err := packagesFrom(machine)
+	npmrc, err := packagesFrom()
 	if err != nil {
 		return err
 	}
-	fmt.Fprintf(os.Stderr, "  [packages] %s\n", saysRegistry(npmrc))
 	built, buildErr := builder.Build(ctx, builder.Command, publisher, repository, *path, *ref, where, bases, npmrc,
 		forgeFrom(),
 		func(step, message string) { fmt.Fprintf(os.Stderr, "  [%s] %s\n", step, message) })
@@ -110,7 +105,6 @@ func buildOnce(ctx context.Context, args []string) error {
 		Ref:        *ref,
 		Manifest:   built.Manifest,
 		Against:    built.Against,
-		Source:     built.Source,
 	}
 	for _, r := range built.Read {
 		out.Read = append(out.Read, readRepository{Repository: r.Repository, Ref: r.Ref})
@@ -141,7 +135,6 @@ type onceResult struct {
 	Made       []madeArtifact   `json:"made"`
 	Against    []string         `json:"against,omitempty"`
 	Read       []readRepository `json:"read,omitempty"`
-	Source     string           `json:"source-fingerprint,omitempty"`
 }
 
 // readRepository is a repository this build read source from besides the module's own.

cmd/mesh-builder/packages_test.go

@@ -1,102 +0,0 @@
-package main
-
-import (
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/builder"
-)
-
-// The build agent's package registry (novox/hq ADR 0336, issue 121): its npm-package-registry
-// requirement is optional, so the binding may be absent, and on genesis's node the installer seals
-// the forge it raised as one genesis document instead.
-
-// registryFiles names the three paths the build agent's environment always names, writing only those
-// given.
-func registryFiles(t *testing.T, binding, token, genesis string) {
-	t.Helper()
-	dir := t.TempDir()
-	for env, content := range map[string]string{
-		"MESH_PACKAGE_BINDING":          binding,
-		"MESH_NPM_TOKEN_FILE":           token,
-		"MESH_GENESIS_PACKAGE_REGISTRY": genesis,
-	} {
-		path := filepath.Join(dir, env)
-		t.Setenv(env, path)
-		if content != "" {
-			if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
-				t.Fatal(err)
-			}
-		}
-	}
-	for _, env := range []string{"MESH_NPM_REGISTRY", "MESH_NPM_TOKEN", "MESH_NPM_USER", "MESH_NPM_SCOPE"} {
-		t.Setenv(env, "")
-	}
-}
-
-const (
-	aBinding = `{"from":"gitea","at":"anchor.mesh","as":"anchor-agent",
-	  "serves":{"scheme":"http","port":3000,"npm-path":"/api/packages/novox/npm/"}}`
-	aGenesisDocument = `{"scheme":"http","at":"127.0.0.1","port":3100,"npm-path":"/api/packages/novox/npm/",
-	  "as":"mesh-builder","password":"genesis-secret"}`
-)
-
-func TestUntilTheRequirementBindsTheGenesisDocumentIsRead(t *testing.T) {
-	registryFiles(t, "", "", aGenesisDocument)
-	n, err := packagesFrom("anchor")
-	if err != nil {
-		t.Fatalf("an absent binding beside a genesis document was refused: %v", err)
-	}
-	if n.From != builder.FromGenesis || n.Registry != "http://127.0.0.1:3100/api/packages/novox/npm/" ||
-		n.Username != "mesh-builder" || n.Password != "genesis-secret" || n.Scope != "@novox" {
-		t.Fatalf("the genesis document was not what the registry came from: %+v", n)
-	}
-	file, err := n.File()
-	if err != nil || !strings.Contains(file, "//127.0.0.1:3100/api/packages/novox/npm/:username=mesh-builder") {
-		t.Fatalf("the .npmrc is not written from the genesis document: %v\n%s", err, file)
-	}
-	if got := saysRegistry(n); !strings.Contains(got, "genesis document") {
-		t.Errorf("the log does not say the genesis document: %s", got)
-	}
-}
-
-func TestARealBindingWinsOverTheGenesisDocument(t *testing.T) {
-	registryFiles(t, aBinding, "bound-secret\n", aGenesisDocument)
-	n, err := packagesFrom("anchor")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if n.From != builder.FromBinding || n.Registry != "http://anchor.mesh:3000/api/packages/novox/npm/" ||
-		n.Username != "anchor-agent" || n.Password != "bound-secret" {
-		t.Fatalf("the binding did not win over the genesis document: %+v", n)
-	}
-	if got := saysRegistry(n); !strings.Contains(got, "binding") {
-		t.Errorf("the log does not say the binding: %s", got)
-	}
-}
-
-func TestWithNeitherTheAgentHasNoRegistryAndSaysWhere(t *testing.T) {
-	registryFiles(t, "", "", "")
-	n, err := packagesFrom("workstation")
-	if err != nil {
-		t.Fatalf("an unbound optional requirement was a fault: %v", err)
-	}
-	if n.Enabled() || n.Machine != "workstation" {
-		t.Fatalf("a registry came from nowhere: %+v", n)
-	}
-	got := saysRegistry(n)
-	for _, want := range []string{"npm-package-registry", "unbound", "workstation"} {
-		if !strings.Contains(got, want) {
-			t.Errorf("the log does not say %q: %s", want, got)
-		}
-	}
-}
-
-func TestAGenesisDocumentMissingAFieldIsRefusedByName(t *testing.T) {
-	registryFiles(t, "", "", `{"at":"127.0.0.1","port":3000,"npm-path":"/api/packages/novox/npm/","as":"mesh-builder"}`)
-	if _, err := packagesFrom("anchor"); err == nil || !strings.Contains(err.Error(), "password") {
-		t.Fatalf("a genesis document with no password was taken: %v", err)
-	}
-}

cmd/mesh-builder/ready.go

@@ -1,44 +0,0 @@
-package main
-
-import (
-	"errors"
-	"fmt"
-	"os"
-	"path/filepath"
-)
-
-// **The build agent says it is ready** (novox/hq issue 544). It listens on nothing, so no http or tcp
-// check can see it work; it writes a mark once it is bound to its worker and pulls build work, and its
-// container's health check runs `mesh-builder ready`, which passes only while the mark is there. Without
-// it the node-engine could judge the agent only alive, and every walk that moved it waited out the whole
-// grace on each machine.
-//
-// The mark lives in the container's own temporary directory, never in the workspace the machine keeps:
-// a new container starts without it, and a restarted one removes it before it binds again.
-func readyMark() string { return filepath.Join(os.TempDir(), "mesh-builder.ready") }
-
-// notReady removes the mark: a holder starting is not taking work until it says so again.
-func notReady() error {
-	if err := os.Remove(readyMark()); err != nil && !errors.Is(err, os.ErrNotExist) {
-		return fmt.Errorf("cannot remove the mark that this agent takes build work (%s): %w", readyMark(), err)
-	}
-	return nil
-}
-
-// taking writes the mark. A mark that cannot be written is said, and the agent goes on building: its
-// check then says it is not ready, which is the truth the gate should hear.
-func taking(seat string) {
-	if err := os.WriteFile(readyMark(), []byte(seat+"\n"), 0o644); err != nil {
-		fmt.Fprintf(os.Stderr, "cannot mark that this agent takes build work (%s): %v\n", readyMark(), err)
-		return
-	}
-	fmt.Fprintf(os.Stderr, "taking build work from %s\n", seat)
-}
-
-// ready is the health check: nil when this container's agent is bound and pulling build work.
-func ready() error {
-	if _, err := os.Stat(readyMark()); err != nil {
-		return fmt.Errorf("not taking build work yet: %s is not there", readyMark())
-	}
-	return nil
-}

cmd/mesh-builder/ready_test.go

@@ -1,32 +0,0 @@
-package main
-
-import (
-	"os"
-	"testing"
-)
-
-// The health check passes only between the agent saying it takes work and its next start (novox/hq
-// issue 544).
-func TestTheAgentIsReadyOnlyOnceItTakesWork(t *testing.T) {
-	t.Setenv("TMPDIR", t.TempDir())
-	if err := ready(); err == nil {
-		t.Fatal("an agent that never took work is ready")
-	}
-	taking("mesh-build-machine")
-	if err := ready(); err != nil {
-		t.Fatalf("an agent taking work is not ready: %v", err)
-	}
-	// Started again, it is not ready until it binds again.
-	if err := notReady(); err != nil {
-		t.Fatal(err)
-	}
-	if err := ready(); err == nil {
-		t.Fatal("an agent starting again is ready before it takes work")
-	}
-	if err := notReady(); err != nil {
-		t.Fatalf("removing a mark that is not there failed: %v", err)
-	}
-	if _, err := os.Stat(readyMark()); err == nil {
-		t.Fatal("the mark is still there")
-	}
-}

cmd/mesh-builder/stdout_test.go

@@ -16,7 +16,6 @@ func TestBuilderDiagnosticsStayOffStdout(t *testing.T) {
 		"version)":     true, // --version
 		`"stopping")`:  true, // the loop.s shutdown line
 		"usage)":       true, // --help text, for a human
-		"said)":        true, // busy: the answer its node-engine reads (novox/hq ADR 0335)
 	}
 	for _, file := range []string{"once.go", "main.go"} {
 		src, err := os.ReadFile(file)

cmd/mesh-builder/tried_test.go

@@ -1,31 +0,0 @@
-package main
-
-import (
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/builder"
-)
-
-// A try's outcome, as the build seat says it in the build's log (novox/hq issue 686): the repository's own
-// check's verdict, how long it took, and each line naming what failed.
-func TestATrysOutcomeNamesWhatFailed(t *testing.T) {
-	tried := triedOf(builder.CheckVerdict{Verdict: "pass", Summary: "the change touches no module", Took: 303 * time.Second,
-		Head: "c0ffee", Trunk: "ca3f43c", Gate: &builder.Layer{Verdict: "pass"},
-		Repo: &builder.Layer{Verdict: "fail", Summary: "its merge-check.sh failed: TestX",
-			Failed: "--- FAIL: TestX (0.01s)\n    x_test.go:12: got 1, want 2"}})
-	if tried.Verdict != "fail" || tried.Took != "5m3s" || len(tried.Failed) != 2 || tried.Trunk != "ca3f43c" ||
-		tried.Summary != "its merge-check.sh failed: TestX" {
-		t.Fatalf("a failed try: %+v", tried)
-	}
-	// A head that does not merge fails both layers: the check's own word.
-	conflict := triedOf(builder.CheckVerdict{Verdict: "fail", Summary: "does not merge", Gate: &builder.Layer{Verdict: "fail"},
-		Repo: &builder.Layer{Verdict: "fail", Summary: "does not merge"}})
-	if conflict.Verdict != "fail" || conflict.Summary != "does not merge" {
-		t.Fatalf("a try that does not merge: %+v", conflict)
-	}
-	// No verdict is an error, never a pass.
-	if none := triedOf(builder.CheckVerdict{}); none.Verdict != "error" {
-		t.Fatalf("a try with no verdict: %+v", none)
-	}
-}

cmd/mesh-controller/accept_outside.go

@@ -1,145 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"sort"
-	"strings"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// A provision whose credential only a person outside the mesh can give (novox/hq ADR 0337, issue 164, issue 165):
-// given once for its provider, at the controller's terminal, and sealed in one act to every consumer that binds the
-// provision from that provider now. The value is never read back, printed or kept.
-
-// outsideOffer is the provider module's own name when `secret accept <node> <module> <name>` names a provision that
-// module offers with a credential issued outside the mesh, and "" when it names anything else (an own secret, or a
-// pair with --provider).
-func outsideOffer(ctx context.Context, module, name, provider string) (string, error) {
-	if provider != "" {
-		return "", nil
-	}
-	open, err := openStores(ctx)
-	if err != nil {
-		return "", err
-	}
-	defer open.Close()
-	shelf, err := open.inventory.Catalogue(ctx)
-	if err != nil {
-		return "", err
-	}
-	if m, known := shelf[module]; known && m.IssuedOutsideOf(name) {
-		return module, nil
-	}
-	return "", nil
-}
-
-// offeredOutsideBy is a module that offers the provision with a credential issued outside the mesh, or "".
-func offeredOutsideBy(ctx context.Context, provision string) (string, error) {
-	open, err := openStores(ctx)
-	if err != nil {
-		return "", err
-	}
-	defer open.Close()
-	shelf, err := open.inventory.Catalogue(ctx)
-	if err != nil {
-		return "", err
-	}
-	module, _ := catalogue.OffersIssuedOutside(shelf, provision)
-	return module, nil
-}
-
-// consumersFrom is every consumer that binds a provision from one provider now, found by resolving every machine as
-// its next send would, and the machines that could not be resolved, with why.
-func consumersFrom(ctx context.Context, open *stores, provider, providerModule, provision string) (
-	[]inventory.PairEnd, []string, error) {
-	nodes, err := open.inventory.Nodes(ctx)
-	if err != nil {
-		return nil, nil, err
-	}
-	var out []inventory.PairEnd
-	var unresolved []string
-	for _, n := range nodes {
-		plan, _, err := planFor(ctx, open, n.Name)
-		if err != nil {
-			unresolved = append(unresolved, fmt.Sprintf("%s: %s", n.Name, oneLine(err.Error())))
-			continue
-		}
-		out = append(out, bindsFrom(plan, n.Name, provider, providerModule, provision)...)
-	}
-	return out, unresolved, nil
-}
-
-// bindsFrom is every consumer on one machine whose resolution answers the provision from that provider. Pure.
-func bindsFrom(plan catalogue.Resolution, machine, provider, providerModule, provision string) []inventory.PairEnd {
-	var out []inventory.PairEnd
-	for _, need := range plan.Needs {
-		if need.ByRecord || need.Name != provision || need.From != provider {
-			continue
-		}
-		if need.Module != "" && need.Module != providerModule {
-			continue
-		}
-		out = append(out, inventory.PairEnd{Consumer: machine, ConsumerModule: need.For, Local: need.Local})
-	}
-	sort.Slice(out, func(i, j int) bool {
-		return out[i].ConsumerModule+"\x00"+out[i].Local < out[j].ConsumerModule+"\x00"+out[j].Local
-	})
-	return out
-}
-
-// acceptForProvision gives a provision's credential issued outside the mesh, once for its provider (ADR 0337 §3).
-func acceptForProvision(ctx context.Context, provider, providerModule, provision, value string) error {
-	open, err := openStores(ctx)
-	if err != nil {
-		return err
-	}
-	defer open.Close()
-	consumers, unresolved, err := consumersFrom(ctx, open, provider, providerModule, provision)
-	if err != nil {
-		return err
-	}
-	accepted, err := open.inventory.AcceptSecretForProvision(ctx, provision, provider, providerModule, value, consumers)
-	value = ""
-	if err != nil {
-		return err
-	}
-	fmt.Print(acceptedSaid(provider, providerModule, provision, accepted, unresolved))
-	if len(accepted.Sealed) == 0 {
-		return nil
-	}
-	if err := sendTo(ctx, open, accepted.Machines); err != nil {
-		return fmt.Errorf("%s is sealed and could not be sent: %w; `push %s` sends it", provision, err,
-			strings.Join(accepted.Machines, "`, `push "))
-	}
-	fmt.Printf("  sent %s; each consumer starts again on it\n", strings.Join(accepted.Machines, ", "))
-	return nil
-}
-
-// acceptedSaid is what one accept for a provider did, in words that never carry the value. Pure.
-func acceptedSaid(provider, providerModule, provision string, a inventory.ProvisionAccepted, unresolved []string) string {
-	var b strings.Builder
-	if len(a.Sealed) == 0 {
-		fmt.Fprintf(&b, "%s from %s on %s: no consumer binds it now, so nothing was sealed; a consumer that binds "+
-			"later waits for it, and this line given again seals it to every consumer then\n", provision,
-			providerModule, provider)
-	} else {
-		var names []string
-		for _, c := range a.Sealed {
-			names = append(names, fmt.Sprintf("%s on %s%s", c.ConsumerModule, c.Consumer, asLocal(c.Local)))
-		}
-		fmt.Fprintf(&b, "%s from %s on %s is given, sealed to %s and to %s\n", provision, providerModule, provider,
-			strings.Join(names, ", "), provider)
-		fmt.Fprintf(&b, "  the mesh cannot read it back, never makes one of its own for it, and will not rotate it\n")
-	}
-	for _, c := range a.Unsealable {
-		fmt.Fprintf(&b, "  not sealed to %s on %s: no sealing key on that machine; give it again once it has one\n",
-			c.ConsumerModule, c.Consumer)
-	}
-	for _, u := range unresolved {
-		fmt.Fprintf(&b, "  not known whether a consumer on %s binds it, which did not resolve; give it again once it does\n", u)
-	}
-	return b.String()
-}

cmd/mesh-controller/acting.go

@@ -1,378 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"os"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/nats-io/nats.go"
-	"github.com/nats-io/nats.go/jetstream"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/lease"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// Acting under the lease (novox/hq to-be 45 §6, ADR 0227 rule 1).
-//
-// **Only the instance holding the lease acts**: sends a declaration, writes a plan, a condition or a
-// call. Every one of those passes theLease.epoch, which answers the epoch the act carries or why it may
-// not happen. Three ways a process stands to the lease:
-//
-//   - **The serving controller** takes it before it does anything else — before it asserts the bus's
-//     objects, which are the controller's to write — waiting while another holds it, and renews it.
-//     Another holder seen, or the key's age passed with no renewal made, is the lease lost: the gate
-//     closes at once and the process exits, so its service manager restarts it as a candidate (serve,
-//     in push.go). A renewal the bus does not answer in time is not a loss (novox/hq issue 477): the
-//     lease is kept, no new act starts once half the key's age passed unrenewed, and the next renewal
-//     made opens the gate again.
-//   - **A command run at a shell** — `push` in the installer, the lab, a person repairing a mesh whose
-//     controller is down (issue 201) — acts **under the holder's epoch** when a controller holds the
-//     lease: it is the same mesh's word, composed and sent under the store's hold of each machine like
-//     the serving controller's, and the epoch it carries is read at the moment it acts, so a handover
-//     between makes it stale and refused like any other. **When nobody holds the lease, the command
-//     takes it** for as long as it runs and gives it back; a controller starting meanwhile waits for
-//     it, as it would for another controller.
-//   - **A process with no bus** — a test, a command that only reads — acts with no epoch and is
-//     refused nothing: there is nothing to order against, and nothing it does reaches a machine.
-//
-// **Unleased, said and temporary.** A serving controller whose bus refuses it the lease's key — the bus's
-// user list is older than this build and does not grant the bucket yet — and that sees no other holder
-// serves without one, as every controller did before the lease: declarations carry no epoch, which no
-// node-engine refuses. Said once, kept as a condition (S12), and tried again every renewal interval; the
-// first push that sends the bus its new user list grants it, and the next try takes it. Refusing to act
-// instead would be a controller that can never send the user list that lets it act.
-
-// actor is this process's standing to the lease.
-type actor struct {
-	mu sync.Mutex
-	// held is the lease this process holds: the serving controller's, or a command's own.
-	held *lease.Lease
-	// unleased is why a serving controller acts without the lease; empty while it holds it or is not
-	// serving.
-	unleased string
-	// serving is a serving controller, which never borrows another's epoch.
-	serving bool
-	// kv is the lease bucket, for a command to read the holder's epoch from.
-	kv    jetstream.KeyValue
-	close func()
-	// noBus is a process with no bus configured.
-	noBus bool
-	// reset is when the lease bucket was found raised again from nothing and its revisions moved past
-	// the highest epoch issued, and what was said of it; zero when it was not (S12).
-	reset     time.Time
-	resetSaid string
-	// renewEvery and poll, when set, are how often the serving controller renews the lease it holds and
-	// looks again at one another holds, in place of the lease's own: a test's, so two controllers hand the
-	// lease over in a second rather than in a renewal of five (novox/hq issue 591). A renewal is given
-	// the lease's own RenewEvery to answer however often it is made, so a slow bus does not lose it.
-	renewEvery, poll time.Duration
-}
-
-// theLease is this process's standing to the lease.
-var theLease = &actor{}
-
-// instance names this process among controller instances: its machine, its process and when it
-// started. The lease's holder and every call this process keeps carry it.
-var instance = func() string {
-	host, _ := os.Hostname()
-	return fmt.Sprintf("controller@%s pid %d since %s", host, os.Getpid(), time.Now().UTC().Format(time.RFC3339))
-}()
-
-// epoch is the gate: the epoch an act carries — zero for none — or why it may not happen.
-func (a *actor) epoch(ctx context.Context) (uint64, error) {
-	a.mu.Lock()
-	held, serving, unleased, noBus := a.held, a.serving, a.unleased, a.noBus
-	a.mu.Unlock()
-	switch {
-	case held != nil:
-		return held.Epoch()
-	case serving && unleased != "":
-		return 0, nil
-	case serving:
-		return 0, lease.ErrNotHeld
-	case noBus:
-		return 0, nil
-	}
-	return a.forACommand(ctx)
-}
-
-// forACommand is a command's epoch: the holder's, or a lease of its own when nobody holds one.
-func (a *actor) forACommand(ctx context.Context) (uint64, error) {
-	a.mu.Lock()
-	defer a.mu.Unlock()
-	if a.held != nil {
-		return a.held.Epoch()
-	}
-	if a.kv == nil {
-		address, err := broker.BusAddress()
-		if err != nil {
-			// No bus: this process reaches no machine, and has nothing to order against.
-			a.noBus = true
-			return 0, nil
-		}
-		js, err := broker.Dial(address)
-		if err != nil {
-			return 0, fmt.Errorf("the bus cannot be reached, so whether a controller holds the lease cannot be "+
-				"read and nothing is done: %w", err)
-		}
-		api, err := jetstream.New(js.Conn())
-		if err != nil {
-			js.Close()
-			return 0, err
-		}
-		reading, cancel := context.WithTimeout(ctx, 10*time.Second)
-		defer cancel()
-		if err := broker.EnsureLeaseBucket(reading, api); err != nil {
-			js.Close()
-			return 0, err
-		}
-		kv, err := api.KeyValue(reading, broker.LeaseBucket)
-		if err != nil {
-			js.Close()
-			return 0, err
-		}
-		a.kv, a.close = kv, js.Close
-		if _, found, err := lease.Current(reading, kv); err == nil && !found {
-			// Nobody: this command takes it for as long as it runs.
-			l, err := lease.Open(reading, api, broker.LeaseBucket, lease.Options{Holder: holderOf(instance),
-				Say: func(format string, args ...any) { fmt.Printf(format+"\n", args...) }})
-			if err != nil {
-				return 0, err
-			}
-			epoch, err := l.TryTake(reading)
-			if err != nil {
-				return 0, fmt.Errorf("no controller holds the lease and this command could not take it: %w", err)
-			}
-			keeping, stop := context.WithCancel(context.Background())
-			go l.Keep(keeping)
-			a.held = l
-			closeBus := a.close
-			a.close = func() {
-				stop()
-				l.Release(context.Background())
-				closeBus()
-			}
-			return epoch, nil
-		}
-	}
-	reading, cancel := context.WithTimeout(ctx, 10*time.Second)
-	defer cancel()
-	holder, found, err := lease.Current(reading, a.kv)
-	if err != nil {
-		return 0, fmt.Errorf("who holds the controller lease cannot be read, so nothing is done: %w", err)
-	}
-	if !found {
-		return 0, errors.New("the controller that held the lease while this command ran let go of it; nothing " +
-			"more is done under an epoch nobody holds — run the command again")
-	}
-	return holder.Epoch, nil
-}
-
-// release gives back what this process holds, at its end.
-func (a *actor) release() {
-	a.mu.Lock()
-	closing := a.close
-	a.close = nil
-	a.mu.Unlock()
-	if closing != nil {
-		closing()
-	}
-}
-
-// holderOf is this process as the lease's holder.
-func holderOf(instance string) lease.Holder {
-	host, _ := os.Hostname()
-	build := runningBuild()
-	if build == "" {
-		build = version
-	}
-	return lease.Holder{Instance: instance, Host: host, Build: build}
-}
-
-// RunningBuildVar is where the declaration tells this process which build it is (module.json, the
-// controller process's env): the version its bundle is delivered as, `${version}` composed by the
-// catalogue from the bundle's digest. Empty for a process placed by hand.
-const RunningBuildVar = "MESH_CONTROLLER_VERSION"
-
-// runningBuild is the version of the build this process is, or empty when the declaration did not say.
-func runningBuild() string {
-	return strings.TrimSpace(os.Getenv(RunningBuildVar))
-}
-
-// serveUnderTheLease takes the lease for the serving controller, waiting while another holds it, and
-// keeps it until ctx ends. Lost is closed when it is lost; the caller exits on it.
-func (a *actor) serveUnderTheLease(ctx context.Context, inv *inventory.Inventory, address string) (lost <-chan struct{}, err error) {
-	a.mu.Lock()
-	a.serving = true
-	a.mu.Unlock()
-	// Its own connection, held as long as the lease, and named so (novox/hq issue 327).
-	js, err := broker.Dial(address, nats.Name(broker.ConnectionName+" lease"))
-	if err != nil {
-		return nil, fmt.Errorf("the mesh is on the bus at %s and this control plane cannot reach it to take the "+
-			"lease: %w", broker.BareAddress(address), err)
-	}
-	api, err := jetstream.New(js.Conn())
-	if err != nil {
-		js.Close()
-		return nil, err
-	}
-	asserting, cancel := context.WithTimeout(ctx, 10*time.Second)
-	err = broker.EnsureLeaseBucket(asserting, api)
-	cancel()
-	if err != nil {
-		js.Close()
-		return nil, err
-	}
-	say := func(format string, args ...any) { fmt.Printf(format+"\n", args...) }
-	l, err := lease.Open(ctx, api, broker.LeaseBucket, lease.Options{Holder: holderOf(instance),
-		RenewEvery: a.renewEvery, RenewWithin: lease.RenewEvery, Poll: a.poll, Floor: inv.HighestEpoch, Say: say, Health: controllerHealth, Moved: func(was, floor uint64) {
-			a.mu.Lock()
-			defer a.mu.Unlock()
-			a.reset = time.Now()
-			a.resetSaid = fmt.Sprintf("the lease bucket was at revision %d with epoch %d already issued: it was "+
-				"raised again from nothing (a bus whose data was replaced), and its revisions were moved past %d so "+
-				"no machine refuses the next epoch", was, floor, floor)
-		}})
-	if err != nil {
-		js.Close()
-		return nil, err
-	}
-	gone := make(chan struct{})
-	epoch, err := l.Take(ctx)
-	switch {
-	case ctx.Err() != nil:
-		js.Close()
-		return nil, ctx.Err()
-	case err != nil && !errors.Is(err, lease.ErrUnwritable):
-		// Whether another controller acts cannot be told: this one does not act, and exits to try again.
-		js.Close()
-		return nil, err
-	case err != nil:
-		// Nobody holds it and the bus will not let it be written: unleased, said, tried again (see above).
-		a.mu.Lock()
-		a.unleased = err.Error()
-		a.mu.Unlock()
-		say("this controller serves WITHOUT the lease: %v. Its declarations carry no epoch; it tries again "+
-			"every %s, and the first push that sends the bus its user list grants it", err, lease.RenewEvery)
-		go a.takeWhenGranted(ctx, l, inv, gone)
-	default:
-		a.took(ctx, l, inv, epoch, gone)
-	}
-	a.mu.Lock()
-	a.close = func() {
-		if held, err := l.Epoch(); err == nil {
-			ending, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-			if err := inv.EndEpoch(ending, held, inventory.EpochReleased); err != nil {
-				say("how epoch %d ended could not be recorded: %v", held, err)
-			}
-			cancel()
-		}
-		l.Release(context.Background())
-		js.Close()
-	}
-	a.mu.Unlock()
-	return gone, nil
-}
-
-// took is the lease taken: recorded, earlier epochs nobody gave back ended as expired, kept.
-func (a *actor) took(ctx context.Context, l *lease.Lease, inv *inventory.Inventory, epoch uint64, gone chan struct{}) {
-	a.mu.Lock()
-	a.held, a.unleased = l, ""
-	a.mu.Unlock()
-	h := holderOf(instance)
-	recording, cancel := context.WithTimeout(ctx, 10*time.Second)
-	expired, err := inv.TookEpoch(recording, inventory.Epoch{Epoch: epoch, Instance: h.Instance, Host: h.Host,
-		Build: h.Build, Taken: time.Now()})
-	cancel()
-	if err != nil {
-		fmt.Printf("epoch %d could not be recorded as taken, so a stale refusal from it will not name it: %v\n", epoch, err)
-	}
-	for _, e := range expired {
-		fmt.Printf("the controller of epoch %d (%s) stopped renewing the lease without giving it back: it is "+
-			"taken over at epoch %d\n", e.Epoch, e.Instance, epoch)
-	}
-	go l.Keep(ctx)
-	go func() {
-		<-l.Lost()
-		if ctx.Err() == nil {
-			why := l.LostWhy()
-			ending, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-			_ = inv.EndEpoch(ending, epoch, inventory.EpochLost)
-			cancel()
-			fmt.Printf("the controller lease was lost (epoch %d): %v — this controller stops and exits, to "+
-				"be started again as a candidate\n", epoch, why)
-		}
-		close(gone)
-	}()
-}
-
-// takeWhenGranted tries the lease again every renewal interval while serving unleased, and stops this
-// controller if another took it meanwhile: two serving at once is what the lease is for.
-func (a *actor) takeWhenGranted(ctx context.Context, l *lease.Lease, inv *inventory.Inventory, gone chan struct{}) {
-	tick := time.NewTicker(lease.RenewEvery)
-	defer tick.Stop()
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-tick.C:
-		}
-		epoch, err := l.TryTake(ctx)
-		if errors.Is(err, lease.ErrTaken) {
-			fmt.Printf("another controller took the lease while this one served without it: %v — this one "+
-				"stops and exits\n", err)
-			close(gone)
-			return
-		}
-		if err != nil {
-			// Still not written, or not readable this time: unleased, said by S12, tried again.
-			a.mu.Lock()
-			a.unleased = err.Error()
-			a.mu.Unlock()
-			continue
-		}
-		a.took(ctx, l, inv, epoch, gone)
-		return
-	}
-}
-
-// standing is what `status` and the self-check say of this process and the lease.
-type standing struct {
-	Epoch    uint64
-	Held     bool
-	Renewed  time.Time
-	Unleased string
-	// Reset is when the lease bucket was found raised again from nothing, and ResetSaid what of it.
-	Reset     time.Time
-	ResetSaid string
-}
-
-func (a *actor) standing() standing {
-	a.mu.Lock()
-	held, unleased, reset, resetSaid := a.held, a.unleased, a.reset, a.resetSaid
-	a.mu.Unlock()
-	st := standing{Unleased: unleased, Reset: reset, ResetSaid: resetSaid}
-	if held == nil {
-		return st
-	}
-	epoch, err := held.Epoch()
-	st.Epoch, st.Held, st.Renewed = epoch, err == nil, held.Renewed()
-	return st
-}
-
-// The gates, given to what acts: a declaration's send (link) and a plan's write (the inventory).
-func init() {
-	link.ActingGate = func(ctx context.Context) error {
-		_, err := theLease.epoch(ctx)
-		if err != nil {
-			return fmt.Errorf("this controller may not send: %w", err)
-		}
-		return nil
-	}
-}

cmd/mesh-controller/acts.go

@@ -4,14 +4,10 @@ import (
 	"context"
 	"fmt"
 	"github.com/novox/mesh-controller/internal/broker"
-	"io"
-	"slices"
 	"sort"
 	"strings"
-	"time"
 
 	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
 )
 
 // The things the mesh can be asked to do, separated from how it was asked.
@@ -43,21 +39,7 @@ import (
 //
 // It costs a resolution per machine. Assignment is a person typing a command, and being told which
 // machines this just blocked is worth more than the milliseconds.
-func assign(ctx context.Context, open *stores, node string, modules ...string) (string, error) {
-	return assignWith(ctx, open, node, assignOptions{}, modules...)
-}
-
-// assignWith is assign asked with its options: build, for a module known and not built (novox/hq issue 325).
-func assignWith(ctx context.Context, open *stores, node string, opts assignOptions, modules ...string) (string, error) {
-	if len(modules) == 0 {
-		return "", fmt.Errorf("assign %s names no module", node)
-	}
-	if err := refusedMovingTheController(modules); err != nil {
-		return "", err
-	}
-	// Every line of the answer comes from the one resolution after the write (novox/hq issue 237):
-	// what the reads before it would say about a machine left out is not the answer's.
-	ctx = leftOutSaidBy(ctx, io.Discard)
+func assign(ctx context.Context, open *stores, node, module string) (string, error) {
 	// Held while it is recorded, so it cannot land between a converge's preview and its flip and
 	// be taken without ever having been previewed (novox/hq ADR 0100).
 	ctx, release, err := holdNodes(ctx, open, []string{node})
@@ -65,39 +47,6 @@ func assignWith(ctx context.Context, open *stores, node string, opts assignOptio
 		return "", err
 	}
 	defer release()
-	// **A module the catalogue does not hold is looked for further before it is refused** (novox/hq issue
-	// 325): a build in flight keeps the assignment pending, a module known and not built is said with how to
-	// build it, and only a name the mesh never heard of is refused as unknown. Several modules in one act
-	// are judged together (ADR 0207), so an act naming one not registered is not made in part.
-	if missing, err := notInCatalogue(ctx, open, modules); err != nil {
-		return "", err
-	} else if len(missing) > 0 {
-		if len(modules) == 1 {
-			return notRegistered(ctx, open, node, modules[0], opts)
-		}
-		var lines []string
-		for _, m := range missing {
-			where, err := whereIs(ctx, open.inventory, m, time.Now())
-			if err != nil {
-				return "", err
-			}
-			lines = append(lines, where.said)
-		}
-		return "", fmt.Errorf("%w: nothing was assigned, since modules assigned together are judged together "+
-			"(ADR 0207) and %s not registered:\n  %s\n  assign them together once each is registered, or each "+
-			"alone to keep it pending on its build", inventory.ErrNoSuchModule, strings.Join(missing, ", "),
-			strings.Join(lines, "\n  "))
-	}
-	// **The one assignment refused for what the node lacks** (novox/hq ADR 0207). Everything else
-	// an assignment leaves unresolved is kept, because assignment is not an ordering; a module whose
-	// resources are applied through a seat nothing on the node holds is refused, because that order
-	// — the service manager, the package manager and the runtime before anything that installs,
-	// runs or contains — is the mesh's to keep. Several modules in one act are judged together, so
-	// holders that depend on each other go on in one command.
-	shelf, before, err := seatDependenciesOnAssign(ctx, open, node, modules)
-	if err != nil {
-		return "", err
-	}
 	// **Before the new assignment can unsettle a seat somebody holds only by being alone**
 	// (novox/hq 04-ISSUES/170): what the mesh derived so far is written down, and then the
 	// assignment resolves against a record rather than against a coincidence.
@@ -105,243 +54,65 @@ func assignWith(ctx context.Context, open *stores, node string, opts assignOptio
 	if err != nil {
 		return "", err
 	}
-	var lines []string
-	var added []string
-	for _, module := range modules {
-		fresh, err := open.inventory.Assign(ctx, node, module)
-		if err != nil {
-			return strings.Join(lines, "\n"), err
-		}
-		if !fresh {
-			// Nothing changed, and saying "is assigned" would read as an action. One node runs one
-			// of each — the module's name is the assignment's identity (novox/hq ADR 0115).
-			lines = append(lines, fmt.Sprintf(
-				"%s already runs %s — one node runs one of each (ADR 0115); nothing changed", node, module))
-			continue
-		}
-		added = append(added, module)
-		lines = append(lines, fmt.Sprintf("%s is assigned %s", node, module))
+	fresh, err := open.inventory.Assign(ctx, node, module)
+	if err != nil {
+		return "", err
 	}
-	if len(added) == 0 {
-		return strings.Join(lines, "\n"), nil
+	if !fresh {
+		// Nothing changed, and saying "is assigned" would read as an action. One node runs one
+		// of each — the module's name is the assignment's identity (novox/hq ADR 0115).
+		return fmt.Sprintf("%s already runs %s — one node runs one of each (ADR 0115); nothing changed",
+			node, module), nil
 	}
-	answer := strings.Join(lines, "\n")
+	said := fmt.Sprintf("%s is assigned %s", node, module)
 	for _, line := range settled {
-		answer += "\n  " + line
+		said += "\n  " + line
 	}
 	// Its bus credential, in the same act (novox/hq issue 203): an assignment pushed before its
 	// credential exists delivers a process that cannot authenticate and crash-loops until somebody
 	// runs a second verb and a second push. Issued here when the module speaks on the bus and has
 	// no credential yet; kept when it has one, so re-assigning rotates nothing.
-	var issued []string
-	for _, module := range added {
-		if line := issueOnAssign(ctx, open, node, module); line != "" {
-			issued = append(issued, line)
-		}
+	if line := issueOnAssign(ctx, open, node, module); line != "" {
+		said += "\n  " + line
 	}
-	// **The one resolution the rest of the answer is said from** (novox/hq issue 237), taken after
-	// the write: what this act changed about this node's unmet seat dependencies, and nothing else
-	// (novox/hq ADR 0207) — a dependency of a module just assigned, or one this assignment met; the
-	// rest of the node's list, and every other node's, is `status`'s — and whether the node resolves.
-	after := resolvedAfter(ctx, open, shelf, node)
-	for _, line := range unheldChangeTo(shelf, node, before, after.modules, after.unheld) {
-		answer += "\n  " + line
-	}
-	for _, line := range issued {
-		answer += "\n  " + line
-	}
-	plan, err := after.plan, after.err
+	plan, _, err := planFor(ctx, open, node)
 	if err != nil {
 		// Kept, and still refused. Both halves are the answer, and the rest of the mesh is still
 		// worth reporting: this machine's refusal is rarely the only consequence.
-		return answer + blockedElsewhere(ctx, open, node), err
+		return said + blockedElsewhere(ctx, open, node), err
 	}
 	// Kept, and cannot be hosted here. Said at once rather than discovered at push: a module whose
 	// capability the machine lacks is on the wrong machine, and the assignment records what a person
 	// meant while this line says it will not run until it moves. The rest of the node still pushes.
-	isAdded := map[string]bool{}
-	for _, m := range added {
-		isAdded[m] = true
-	}
 	for _, u := range plan.Unhostable {
-		if !isAdded[u.Module] {
+		if u.Module != module {
 			continue
 		}
 		for _, c := range u.Missing {
-			answer += "\n  but " + catalogue.WrongMachine(u.Module, c, node)
+			said += "\n  but " + catalogue.WrongMachine(u.Module, c, node)
 		}
 	}
-	return answer + fmt.Sprintf("\n  run `push %s` to send it", node) +
+	return said + fmt.Sprintf("\n  run `push %s` to send it", node) +
 		blockedElsewhere(ctx, open, node), nil
 }
 
-// seatDependenciesOnAssign is the refusal ADR 0207 makes at assignment, or nothing, with the
-// catalogue and the node's assignments it was judged against. Modules already assigned are not new
-// and are not judged again.
-func seatDependenciesOnAssign(ctx context.Context, open *stores, node string, modules []string) (
-	map[string]catalogue.Manifest, []string, error) {
-	shelf, err := open.inventory.Catalogue(ctx)
-	if err != nil {
-		return nil, nil, err
-	}
-	assigned, err := open.inventory.Assigned(ctx, node)
-	if err != nil {
-		return nil, nil, err
-	}
-	already := map[string]bool{}
-	for _, a := range assigned {
-		already[a] = true
-	}
-	var adding []string
-	for _, m := range modules {
-		if !already[m] {
-			adding = append(adding, m)
-		}
-	}
-	// The lines AssignRefusal says beside an assignment it lets through are said by unheldChange
-	// with everything else this act changed, so they are not said twice.
-	if _, err := catalogue.AssignRefusal(shelf, node, assigned, adding); err != nil {
-		return nil, nil, err
-	}
-	// Two modules declaring one path or unit, or one package present and absent, is refused before anything
-	// is recorded (novox/hq ADR 0210, ADR 0303, 04-ISSUES/235): kept, the node would not resolve until one came
-	// off again. Two modules declaring one package present is not a collision (ADR 0303, issue 628).
-	if err := catalogue.CollisionRefusal(shelf, node, assigned, adding); err != nil {
-		return nil, nil, err
-	}
-	return shelf, assigned, nil
-}
-
-// unassign takes modules off a node. What they leave behind is the host's business: a directory
+// unassign takes a module off a node. What it leaves behind is the host's business: a directory
 // holding anything the mesh did not put there is kept (novox/hq ADR 0030).
 //
 // It reports the rest of the mesh for the same reason assign does, and more sharply: taking a
 // module off one machine is the ordinary way to stop providing something to another, and nothing
 // about the command's own output would ever have said so.
-//
-// **Refused when it takes away the last holder of a seat a module left on the node depends on**
-// (novox/hq ADR 0207) — the other side of refusing that module's assignment without one. Several
-// modules in one act are judged together, so a holder and its dependents come off in one command.
-func unassign(ctx context.Context, open *stores, node string, modules ...string) (string, error) {
-	if err := refusedMovingTheController(modules); err != nil {
-		return "", err
-	}
-	if len(modules) == 0 {
-		return "", fmt.Errorf("unassign %s names no module", node)
-	}
-	// One resolution after the write, as assign's answer (novox/hq issue 237).
-	ctx = leftOutSaidBy(ctx, io.Discard)
+func unassign(ctx context.Context, open *stores, node, module string) (string, error) {
 	ctx, release, err := holdNodes(ctx, open, []string{node})
 	if err != nil {
 		return "", err
 	}
 	defer release()
-	shelf, err := open.inventory.Catalogue(ctx)
-	if err != nil {
+	if err := open.inventory.Unassign(ctx, node, module); err != nil {
 		return "", err
 	}
-	assigned, err := open.inventory.Assigned(ctx, node)
-	if err != nil {
-		return "", err
-	}
-	// Every one checked before any is taken off, so a refusal leaves the node as it was.
-	runs := map[string]bool{}
-	for _, a := range assigned {
-		runs[a] = true
-	}
-	// A module only pending on the node (novox/hq issue 325) is withdrawn, when it is the act's one module:
-	// that is the undo of an assignment kept while its build runs.
-	if len(modules) == 1 && !runs[modules[0]] {
-		said, withdrawn, err := withdrawPending(ctx, open.inventory, node, modules[0])
-		if err != nil {
-			return "", err
-		}
-		if withdrawn {
-			return said, nil
-		}
-	}
-	for _, module := range modules {
-		if !runs[module] {
-			return "", fmt.Errorf("%s is not assigned to %s", module, node)
-		}
-	}
-	if err := catalogue.UnassignRefusal(shelf, node, assigned, modules); err != nil {
-		return "", err
-	}
-	for _, module := range modules {
-		if err := open.inventory.Unassign(ctx, node, module); err != nil {
-			return "", err
-		}
-	}
-	answer := fmt.Sprintf("%s no longer runs %s — run `push %s` to make it so",
-		node, strings.Join(modules, ", "), node)
-	after := resolvedAfter(ctx, open, shelf, node)
-	for _, line := range unheldChangeTo(shelf, node, assigned, after.modules, after.unheld) {
-		answer += "\n  " + line
-	}
-	// Whether the node itself still resolves, from the same resolution: before, only the rest of the
-	// mesh's reads said it, on standard error and once per other machine.
-	if after.err != nil {
-		if unresolvable(after.err) {
-			answer += fmt.Sprintf("\n  but %s does not resolve now, so nothing will be sent to it:", node)
-		} else {
-			answer += fmt.Sprintf("\n  but whether %s still resolves could not be read:", node)
-		}
-		for _, line := range strings.Split(strings.TrimRight(after.err.Error(), "\n"), "\n") {
-			answer += "\n    " + strings.TrimSpace(line)
-		}
-	}
-	// What it leaves behind that is irreplaceable is kept and retired, never removed (novox/hq ADR 0233).
-	for _, line := range keptOnUnassign(ctx, open.inventory, node, modules) {
-		answer += "\n  " + line
-	}
-	return answer + blockedElsewhere(ctx, open, node), nil
-}
-
-// afterAct is the one resolution of a node an act's answer is said from, taken after its write
-// (novox/hq issue 237): the plan or why there is none, the modules it has on the node, and its unmet
-// seat dependencies.
-type afterAct struct {
-	plan    catalogue.Resolution
-	err     error
-	modules []string
-	unheld  []catalogue.Unheld
-}
-
-// resolvedAfter resolves the node as `plan` does, once, after the act's write. When the node resolves,
-// its modules and unmet seat dependencies are the resolution's — the closure, so a holder pulled in by
-// a requirement counts as `plan` counts it. When it does not, they are judged over the assignments read
-// after the write, which can only find more unmet than the closure would: a seat said held there is
-// held in the closure too.
-func resolvedAfter(ctx context.Context, open *stores, shelf map[string]catalogue.Manifest, node string) afterAct {
-	plan, _, err := planFor(ctx, open, node)
-	if err == nil {
-		out := afterAct{plan: plan, unheld: plan.Unheld}
-		for _, m := range plan.Modules {
-			out.modules = append(out.modules, m.Module)
-		}
-		return out
-	}
-	out := afterAct{err: err}
-	assigned, readErr := open.inventory.Assigned(ctx, node)
-	if readErr != nil {
-		return out
-	}
-	out.modules, out.unheld = assigned, unheldOver(shelf, node, assigned)
-	return out
-}
-
-// splitModules is a surface's one `module` field as the modules it names: several, comma-separated,
-// are one act (novox/hq ADR 0207), so the holders that depend on each other go on together from the
-// command API and the controller seat's verbs as they do from the command line.
-func splitModules(field string) []string {
-	var out []string
-	for _, m := range strings.Split(field, ",") {
-		if m = strings.TrimSpace(m); m != "" {
-			out = append(out, m)
-		}
-	}
-	return out
+	return fmt.Sprintf("%s no longer runs %s — run `push %s` to make it so",
+		node, module, node) + blockedElsewhere(ctx, open, node), nil
 }
 
 // blockedElsewhere is every OTHER machine that cannot be worked out as things now stand.
@@ -391,10 +162,10 @@ func blockedElsewhere(ctx context.Context, open *stores, except string) string {
 }
 
 // issueOnAssign gives a newly assigned module its bus credential, the way `module issue` does, and
-// says what it did in one line. Nothing for a module that declares no broker secret and runs no
-// provisioner client; nothing for one whose user is already minted (a credential is rotated on
-// purpose, never by re-assigning); and when the bus cannot be reached from here, the line names the
-// verb and the push that would refuse the module until it is run — never a silent placeholder (novox/hq issue 203).
+// says what it did in one line. Nothing for a module that declares no broker secret; nothing for one
+// whose user is already minted (a credential is rotated on purpose, never by re-assigning); and when
+// the bus cannot be reached from here, the line names the verb and the push that would refuse the
+// module until it is run — never a silent placeholder (novox/hq issue 203).
 func issueOnAssign(ctx context.Context, open *stores, node, module string) string {
 	inv := open.inventory
 	shelf, err := inv.Catalogue(ctx)
@@ -406,10 +177,6 @@ func issueOnAssign(ctx context.Context, open *stores, node, module string) strin
 		return ""
 	}
 	user := broker.Principal{Kind: broker.KindModule, Node: node, Module: module}.Username()
-	if _, reads := m.OwnSecrets["broker"]; !reads {
-		// A module running the provisioner client alone is minted the client's account (issue 917).
-		user = broker.Principal{Kind: broker.KindProvisioner, Node: node, Module: module}.Username()
-	}
 	if _, minted, err := inv.BusUserHash(ctx, user); err != nil || minted {
 		return ""
 	}
@@ -423,17 +190,3 @@ func issueOnAssign(ctx context.Context, open *stores, node, module string) strin
 	}
 	return fmt.Sprintf("its bus credential is issued and sealed to %s, and arrives with the push", node)
 }
-
-// refusedMovingTheController refuses assigning or unassigning the controller's module through a verb (review of
-// novox/hq ADR 0272): the node it is assigned to is the control-node, and the control-node's operator account is
-// the controller's terminal, so whoever moves the module chooses the terminal. At the terminal alone, as every
-// change that says who may change what.
-func refusedMovingTheController(modules []string) error {
-	verb, through := throughAVerb()
-	if !through || !slices.Contains(modules, controllerModule) {
-		return nil
-	}
-	return fmt.Errorf("%s is assigned and unassigned at the controller's terminal only (mesh-cli on the control-node), "+
-		"never through a verb (this came through %q): the node it runs on is the control-node, whose operator is the "+
-		"terminal (novox/hq ADR 0272). Nothing was assigned", controllerModule, verb)
-}

cmd/mesh-controller/acts_test.go

@@ -1,5 +1,3 @@
-//go:build integration
-
 package main
 
 import (

cmd/mesh-controller/addresses_integration_test.go

@@ -1,228 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"encoding/json"
-	"os"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/licences"
-)
-
-func TestTheRegistryTrustAndEveryImageFollowThePortTheNodeGaveTheStore(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	register(t, open, aStore())
-	if _, err := assign(ctx, open, "anchor", "distribution"); err != nil {
-		t.Fatal(err)
-	}
-	if err := open.inventory.SetSettings(ctx, "anchor", "distribution",
-		map[string]any{catalogue.PortsSetting: map[string]any{"5000": 5101}}); err != nil {
-		t.Fatal(err)
-	}
-	// A module the mesh built, recorded by digest and path, running on the other machine.
-	if err := open.inventory.RecordBuild(ctx, inventory.Build{
-		ID: "b1", Repository: "r", Module: "app", Commit: "abc",
-		Made: []inventory.Artifact{{Name: "server", Kind: "image",
-			Reference: catalogue.ArtifactStoreScheme + "app/server@" + aDigest}},
-	}); err != nil {
-		t.Fatal(err)
-	}
-	register(t, open, catalogue.Manifest{Module: "app", Version: "1",
-		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-app",
-			"image": catalogue.ArtifactStoreScheme + "app/server@" + aDigest}}})
-	if _, err := assign(ctx, open, "laptop", "app"); err != nil {
-		t.Fatal(err)
-	}
-	// The runtime's trust is the runtime's module's to write (novox/hq ADR 0222): a stand-in for it
-	// asks where this machine reaches the store, as the docker module does.
-	register(t, open, catalogue.Manifest{Module: "runtime", Version: "1",
-		Resources: []map[string]any{{"id": "daemon", "type": "file", "path": "/etc/docker/daemon.json",
-			"into": "json", "content": `{"insecure-registries": ["${seat:mesh-artifact-store:reach}"]}` + "\n"}}})
-	if _, err := assign(ctx, open, "laptop", "runtime"); err != nil {
-		t.Fatal(err)
-	}
-
-	on := map[string]bool{"anchor": true, "laptop": true}
-	node, port, found, err := artifactStoreOnNetwork(ctx, open.inventory, on)
-	if err != nil || !found || node != "anchor" || port != "5101" {
-		t.Fatalf("the store is found on %q:%q (%v, %v); the node put it on 5101", node, port, found, err)
-	}
-
-	var trust string
-	for _, r := range composed(t, open, "laptop").Resources {
-		if r["path"] == "/etc/docker/daemon.json" {
-			trust, _ = r["content"].(string)
-		}
-		if r["id"] == "app.server" && r["image"] != "anchor.internal:5101/app/server@"+aDigest {
-			t.Errorf("the image the mesh built is fetched as %v", r["image"])
-		}
-	}
-	if !strings.Contains(trust, "anchor.internal:5101") || strings.Contains(trust, ":5000") {
-		t.Fatalf("the runtime is told to trust %q; the node put the store on 5101", trust)
-	}
-
-	// And a replay to the catalogue says where the store is now.
-	announced, err := following{open: open}.Announceable(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(announced) != 1 || announced[0].Made[0].Reference != "anchor.internal:5101/app/server@"+aDigest {
-		t.Fatalf("the replay announces %+v", announced)
-	}
-}
-
-func TestTheControlPlaneIsToldWhereTheNodePutTheStoreAndTheBroker(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	raw, err := os.ReadFile("../../module.json")
-	if err != nil {
-		t.Fatal(err)
-	}
-	m, err := catalogue.ParseManifest(raw)
-	if err != nil {
-		t.Fatal(err)
-	}
-	control, err := withSeatPorts(m).Resolve([]catalogue.Built{{Name: "controller", Kind: catalogue.ArtifactBundle,
-		Reference: "https://registry.example/mesh-controller/controller.tar.gz", Digest: aDigest}})
-	if err != nil {
-		t.Fatal(err)
-	}
-	register(t, open, control)
-	register(t, open, catalogue.Manifest{Module: "postgres", Version: "1",
-		Claims:  []catalogue.Claim{{Name: "mesh-store", Scope: catalogue.ScopeMesh}},
-		Listens: []catalogue.Listening{{Port: 5432, From: catalogue.FromMesh}},
-		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-store",
-			"ports": []any{"5432:5432"}, "image": "pg@" + aDigest}}})
-	register(t, open, catalogue.Manifest{Module: "lavinmq", Version: "1",
-		Claims: []catalogue.Claim{{Name: "mesh-broker", Scope: catalogue.ScopeMesh}},
-		Listens: []catalogue.Listening{{Port: 5671, From: catalogue.FromMesh},
-			{Port: 5672, From: catalogue.FromMesh}},
-		Guards: []int{15672},
-		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-broker",
-			"ports": []any{"5671:5671", "5672:5672", "127.0.0.1:15672:15672"}, "image": "mq@" + aDigest}}})
-	// The control plane's own bus user is the installer's, seeded at genesis before the controller
-	// runs (SeedBusUser); without it a push now refuses the credential nobody issued (issue 203).
-	if err := open.inventory.SeedBusUser(ctx, inventory.BusUser{Username: "anchor.mesh-controller",
-		Kind: inventory.BusController, Node: "anchor", Module: "mesh-controller"}, "bootstrap"); err != nil {
-		t.Fatal(err)
-	}
-	if _, err := assign(ctx, open, "anchor", "mesh-controller"); err != nil {
-		t.Fatal(err)
-	}
-	// The store's module is registered and given its port, and NOT assigned: the state genesis
-	// leaves a given-port node in before the foundation is adopted as modules (04-ISSUES/085).
-	if err := open.inventory.SetSettings(ctx, "anchor", "postgres",
-		map[string]any{catalogue.PortsSetting: map[string]any{"5432": 6852}}); err != nil {
-		t.Fatal(err)
-	}
-	if _, err := assign(ctx, open, "anchor", "lavinmq"); err != nil {
-		t.Fatal(err)
-	}
-	if err := open.inventory.SetSettings(ctx, "anchor", "lavinmq",
-		map[string]any{catalogue.PortsSetting: map[string]any{"5672": 5679}}); err != nil {
-		t.Fatal(err)
-	}
-
-	var env map[string]any
-	for _, r := range composed(t, open, "anchor").Resources {
-		if r["id"] == "mesh-controller.controller" {
-			env, _ = r["env"].(map[string]any)
-		}
-	}
-	if env == nil {
-		t.Fatal("the control plane's process is not in its own node's declaration")
-	}
-	for key, want := range map[string]string{
-		"MESH_STORE_INVENTORY_PORT": "6852",
-		"MESH_STORE_IDENTITY_PORT":  "6852",
-		"MESH_STORE_LICENCES_PORT":  "6852",
-		"MESH_BROKER_AMQP_PORT":     "5679",
-		// Neither given nor assigned by the mesh: the manifest's own number is NOT the answer,
-		// because the sealed value beside it carries the port genesis wrote (finding F3).
-		"MESH_BROKER_ADDRESS_PORT":    "",
-		"MESH_BROKER_MANAGEMENT_PORT": "",
-	} {
-		if env[key] != want {
-			t.Errorf("the control plane is told %s=%v; the node says %q", key, env[key], want)
-		}
-	}
-}
-
-func aLoneNode(t *testing.T) *stores {
-	t.Helper()
-	inventory.ForTest(t)
-	licences.ForTest(t)
-	open, err := openStores(t.Context())
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(open.Close)
-	for _, m := range provided {
-		if err := open.inventory.Provide(t.Context(), m); err != nil {
-			t.Fatal(err)
-		}
-	}
-	record, err := open.inventory.AddNode(t.Context(), "anchor")
-	if err != nil {
-		t.Fatal(err)
-	}
-	reported, _ := json.Marshal(map[string]any{"capabilities": []map[string]any{
-		{"name": "container-runtime", "present": true}}})
-	var profile map[string]any
-	_ = json.Unmarshal(reported, &profile)
-	if err := open.inventory.RecordProfile(t.Context(), record.ID, profile); err != nil {
-		t.Fatal(err)
-	}
-	if err := open.inventory.RecordSealingKey(t.Context(), record.ID, aPublicKey(t)); err != nil {
-		t.Fatal(err)
-	}
-	return open
-}
-
-func TestOnANodeWithNoNetworkTheStoreIsReachedByLoopback(t *testing.T) {
-	open := aLoneNode(t)
-	ctx := t.Context()
-	register(t, open, aStore())
-	register(t, open, catalogue.Manifest{Module: "builder", Version: "1",
-		Requires: []string{catalogue.ArtifactStoreProvision},
-		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-builder",
-			"image": "registry.example/mesh-builder@" + aDigest}}})
-	if err := open.inventory.RecordBuild(ctx, inventory.Build{
-		ID: "b1", Repository: "r", Module: "postgres", Commit: "abc",
-		Made: []inventory.Artifact{{Name: "runtime", Kind: "image",
-			Reference: catalogue.ArtifactStoreScheme + "postgres/runtime@" + aDigest}},
-	}); err != nil {
-		t.Fatal(err)
-	}
-	register(t, open, catalogue.Manifest{Module: "postgres", Version: "1",
-		Resources: []map[string]any{{"id": "runtime", "type": "container", "name": "mesh-postgres",
-			"image": catalogue.ArtifactStoreScheme + "postgres/runtime@" + aDigest}}})
-	for _, module := range []string{"distribution", "builder", "postgres"} {
-		if _, err := assign(ctx, open, "anchor", module); err != nil {
-			t.Fatal(err)
-		}
-	}
-	if err := open.inventory.SetSettings(ctx, "anchor", "distribution",
-		map[string]any{catalogue.PortsSetting: map[string]any{"5000": 5100}}); err != nil {
-		t.Fatal(err)
-	}
-
-	var image any
-	for _, r := range composed(t, open, "anchor").Resources {
-		if r["id"] == "postgres.runtime" {
-			image = r["image"]
-		}
-	}
-	if image != "127.0.0.1:5100/postgres/runtime@"+aDigest {
-		t.Fatalf("on the store's own node, off any network, the image is fetched as %v", image)
-	}
-	held := heldBy(ctx)
-	if got := held["postgres/runtime"]; got != "127.0.0.1:5100/postgres/runtime@"+aDigest {
-		t.Fatalf("a builder beside the store is handed the base %q", got)
-	}
-}

cmd/mesh-controller/addresses_test.go

@@ -2,10 +2,13 @@ package main
 
 import (
 	"encoding/json"
+	"os"
 	"strings"
 	"testing"
 
 	"github.com/novox/mesh-controller/internal/catalogue"
+	"github.com/novox/mesh-controller/internal/inventory"
+	"github.com/novox/mesh-controller/internal/licences"
 	"github.com/novox/mesh-controller/internal/link"
 )
 
@@ -83,12 +86,142 @@ func aStore() catalogue.Manifest {
 
 // **The trust a machine writes for the store, and the address every built image is fetched
 // through, say the port the node gave the store** — not the catalogue's number.
+func TestTheRegistryTrustAndEveryImageFollowThePortTheNodeGaveTheStore(t *testing.T) {
+	open := aMesh(t)
+	ctx := t.Context()
+	register(t, open, aStore())
+	if _, err := assign(ctx, open, "anchor", "distribution"); err != nil {
+		t.Fatal(err)
+	}
+	if err := open.inventory.SetSettings(ctx, "anchor", "distribution",
+		map[string]any{catalogue.PortsSetting: map[string]any{"5000": 5101}}); err != nil {
+		t.Fatal(err)
+	}
+	// A module the mesh built, recorded by digest and path, running on the other machine.
+	if err := open.inventory.RecordBuild(ctx, inventory.Build{
+		ID: "b1", Repository: "r", Module: "app", Commit: "abc",
+		Made: []inventory.Artifact{{Name: "server", Kind: "image",
+			Reference: catalogue.ArtifactStoreScheme + "app/server@" + aDigest}},
+	}); err != nil {
+		t.Fatal(err)
+	}
+	register(t, open, catalogue.Manifest{Module: "app", Version: "1",
+		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-app",
+			"image": catalogue.ArtifactStoreScheme + "app/server@" + aDigest}}})
+	if _, err := assign(ctx, open, "laptop", "app"); err != nil {
+		t.Fatal(err)
+	}
+
+	on := map[string]bool{"anchor": true, "laptop": true}
+	node, port, found, err := artifactStoreOnNetwork(ctx, open.inventory, on)
+	if err != nil || !found || node != "anchor" || port != "5101" {
+		t.Fatalf("the store is found on %q:%q (%v, %v); the node put it on 5101", node, port, found, err)
+	}
+
+	var trust string
+	for _, r := range composed(t, open, "laptop").Resources {
+		if r["path"] == "/etc/docker/daemon.json" {
+			trust, _ = r["content"].(string)
+		}
+		if r["id"] == "app.server" && r["image"] != "anchor.internal:5101/app/server@"+aDigest {
+			t.Errorf("the image the mesh built is fetched as %v", r["image"])
+		}
+	}
+	if !strings.Contains(trust, "anchor.internal:5101") || strings.Contains(trust, ":5000") {
+		t.Fatalf("the runtime is told to trust %q; the node put the store on 5101", trust)
+	}
+
+	// And a replay to the catalogue says where the store is now.
+	announced, err := following{open}.Announceable(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(announced) != 1 || announced[0].Made[0].Reference != "anchor.internal:5101/app/server@"+aDigest {
+		t.Fatalf("the replay announces %+v", announced)
+	}
+}
 
 // **The control plane's own connections say the port the node gave the store and the broker.**
 //
 // Composed from the control plane's own manifest against a real inventory: the store's module is
 // given 6852 on this node the way genesis or an operator gives it, and the control plane's
-// process is told so beside the sealed connection genesis wrote.
+// container is told so beside the sealed connection genesis wrote.
+func TestTheControlPlaneIsToldWhereTheNodePutTheStoreAndTheBroker(t *testing.T) {
+	open := aMesh(t)
+	ctx := t.Context()
+	raw, err := os.ReadFile("../../module.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	m, err := catalogue.ParseManifest(raw)
+	if err != nil {
+		t.Fatal(err)
+	}
+	control, err := withSeatPorts(m).Resolve([]catalogue.Built{{Name: "server", Kind: catalogue.ArtifactImage,
+		Reference: "registry.example/control@" + aDigest}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	register(t, open, control)
+	register(t, open, catalogue.Manifest{Module: "postgres", Version: "1",
+		Claims:  []catalogue.Claim{{Name: "mesh-store", Scope: catalogue.ScopeMesh}},
+		Listens: []catalogue.Listening{{Port: 5432, From: catalogue.FromMesh}},
+		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-store",
+			"ports": []any{"5432:5432"}, "image": "pg@" + aDigest}}})
+	register(t, open, catalogue.Manifest{Module: "lavinmq", Version: "1",
+		Claims: []catalogue.Claim{{Name: "mesh-broker", Scope: catalogue.ScopeMesh}},
+		Listens: []catalogue.Listening{{Port: 5671, From: catalogue.FromMesh},
+			{Port: 5672, From: catalogue.FromMesh}},
+		Guards: []int{15672},
+		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-broker",
+			"ports": []any{"5671:5671", "5672:5672", "127.0.0.1:15672:15672"}, "image": "mq@" + aDigest}}})
+	// The control plane's own bus user is the installer's, seeded at genesis before the controller
+	// runs (SeedBusUser); without it a push now refuses the credential nobody issued (issue 203).
+	if err := open.inventory.SeedBusUser(ctx, inventory.BusUser{Username: "anchor.mesh-controller",
+		Kind: inventory.BusController, Node: "anchor", Module: "mesh-controller"}, "bootstrap"); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := assign(ctx, open, "anchor", "mesh-controller"); err != nil {
+		t.Fatal(err)
+	}
+	// The store's module is registered and given its port, and NOT assigned: the state genesis
+	// leaves a given-port node in before the foundation is adopted as modules (04-ISSUES/085).
+	if err := open.inventory.SetSettings(ctx, "anchor", "postgres",
+		map[string]any{catalogue.PortsSetting: map[string]any{"5432": 6852}}); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := assign(ctx, open, "anchor", "lavinmq"); err != nil {
+		t.Fatal(err)
+	}
+	if err := open.inventory.SetSettings(ctx, "anchor", "lavinmq",
+		map[string]any{catalogue.PortsSetting: map[string]any{"5672": 5679}}); err != nil {
+		t.Fatal(err)
+	}
+
+	var env map[string]any
+	for _, r := range composed(t, open, "anchor").Resources {
+		if r["id"] == "mesh-controller.server" {
+			env, _ = r["env"].(map[string]any)
+		}
+	}
+	if env == nil {
+		t.Fatal("the control plane's container is not in its own node's declaration")
+	}
+	for key, want := range map[string]string{
+		"MESH_STORE_INVENTORY_PORT": "6852",
+		"MESH_STORE_IDENTITY_PORT":  "6852",
+		"MESH_STORE_LICENCES_PORT":  "6852",
+		"MESH_BROKER_AMQP_PORT":     "5679",
+		// Neither given nor assigned by the mesh: the manifest's own number is NOT the answer,
+		// because the sealed value beside it carries the port genesis wrote (finding F3).
+		"MESH_BROKER_ADDRESS_PORT":    "",
+		"MESH_BROKER_MANAGEMENT_PORT": "",
+	} {
+		if env[key] != want {
+			t.Errorf("the control plane is told %s=%v; the node says %q", key, env[key], want)
+		}
+	}
+}
 
 // withSeatPorts is the control plane's manifest with the seat placeholders in its environment —
 // added here until module.json carries them (the manifest lands one commit after the code that
@@ -105,7 +238,7 @@ func withSeatPorts(m catalogue.Manifest) catalogue.Manifest {
 	out := m
 	out.Resources = nil
 	for _, r := range m.Resources {
-		if r["type"] != "container" && r["type"] != "process" {
+		if r["type"] != "container" {
 			out.Resources = append(out.Resources, r)
 			continue
 		}
@@ -133,7 +266,79 @@ func withSeatPorts(m catalogue.Manifest) catalogue.Manifest {
 // aLoneNode is one capable machine with nothing placed on any network — the control-node during
 // genesis, before the "network" step, which is after the store, the broker, the vault and the
 // catalogue have each been built and pushed (finding F2).
+func aLoneNode(t *testing.T) *stores {
+	t.Helper()
+	inventory.ForTest(t)
+	licences.ForTest(t)
+	open, err := openStores(t.Context())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(open.Close)
+	for _, m := range provided {
+		if err := open.inventory.Provide(t.Context(), m); err != nil {
+			t.Fatal(err)
+		}
+	}
+	record, err := open.inventory.AddNode(t.Context(), "anchor")
+	if err != nil {
+		t.Fatal(err)
+	}
+	reported, _ := json.Marshal(map[string]any{"capabilities": []map[string]any{
+		{"name": "container-runtime", "present": true}}})
+	var profile map[string]any
+	_ = json.Unmarshal(reported, &profile)
+	if err := open.inventory.RecordProfile(t.Context(), record.ID, profile); err != nil {
+		t.Fatal(err)
+	}
+	if err := open.inventory.RecordSealingKey(t.Context(), record.ID, aPublicKey(t)); err != nil {
+		t.Fatal(err)
+	}
+	return open
+}
 
 // **Before the network exists, the store's own node reaches it by loopback** — never refused,
 // never handed the scheme: a genesis pushes the store, the broker, the vault and the catalogue to
 // a node on no network, and builds the catalogue on a base it must be able to pull.
+func TestOnANodeWithNoNetworkTheStoreIsReachedByLoopback(t *testing.T) {
+	open := aLoneNode(t)
+	ctx := t.Context()
+	register(t, open, aStore())
+	register(t, open, catalogue.Manifest{Module: "builder", Version: "1",
+		Requires: []string{catalogue.ArtifactStoreProvision},
+		Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-builder",
+			"image": "registry.example/mesh-builder@" + aDigest}}})
+	if err := open.inventory.RecordBuild(ctx, inventory.Build{
+		ID: "b1", Repository: "r", Module: "postgres", Commit: "abc",
+		Made: []inventory.Artifact{{Name: "runtime", Kind: "image",
+			Reference: catalogue.ArtifactStoreScheme + "postgres/runtime@" + aDigest}},
+	}); err != nil {
+		t.Fatal(err)
+	}
+	register(t, open, catalogue.Manifest{Module: "postgres", Version: "1",
+		Resources: []map[string]any{{"id": "runtime", "type": "container", "name": "mesh-postgres",
+			"image": catalogue.ArtifactStoreScheme + "postgres/runtime@" + aDigest}}})
+	for _, module := range []string{"distribution", "builder", "postgres"} {
+		if _, err := assign(ctx, open, "anchor", module); err != nil {
+			t.Fatal(err)
+		}
+	}
+	if err := open.inventory.SetSettings(ctx, "anchor", "distribution",
+		map[string]any{catalogue.PortsSetting: map[string]any{"5000": 5100}}); err != nil {
+		t.Fatal(err)
+	}
+
+	var image any
+	for _, r := range composed(t, open, "anchor").Resources {
+		if r["id"] == "postgres.runtime" {
+			image = r["image"]
+		}
+	}
+	if image != "127.0.0.1:5100/postgres/runtime@"+aDigest {
+		t.Fatalf("on the store's own node, off any network, the image is fetched as %v", image)
+	}
+	held := heldBy(ctx)
+	if got := held["postgres/runtime"]; got != "127.0.0.1:5100/postgres/runtime@"+aDigest {
+		t.Fatalf("a builder beside the store is handed the base %q", got)
+	}
+}

cmd/mesh-controller/adopting_test.go

@@ -1,5 +1,3 @@
-//go:build integration
-
 package main
 
 import (
@@ -87,7 +85,7 @@ func reportsReaching(t *testing.T, open *stores, reachable []link.Reach, held ..
 	if err != nil {
 		t.Fatal(err)
 	}
-	if err := open.inventory.RecordSent(ctx, record.ID, digestOf(body), nil); err != nil {
+	if err := open.inventory.RecordSent(ctx, record.ID, digestOf(body)); err != nil {
 		t.Fatal(err)
 	}
 	if _, err := (link.Enrolment{Inventory: open.inventory}).Heard(ctx, link.Report{

cmd/mesh-controller/adoption.go

@@ -408,9 +408,6 @@ func comparisonOf(module string, c comparison, opts takeOptions) (preview string
 		switch {
 		case sec.Origin == inventory.OriginAccepted:
 			fmt.Fprintf(&b, "  %s %s: accepted from a person, carried in as it is\n", what, name)
-		case sec.Origin == inventory.OriginIssued:
-			// Taken from the provider's software (novox/hq ADR 0305): the value the running service uses.
-			fmt.Fprintf(&b, "  %s %s: issued by the provider's software, carried in as it is\n", what, name)
 		case opts.Mint[sec.Name]:
 			fmt.Fprintf(&b, "  %s %s: minted by the mesh; the service takes the new value, as --mint said\n", what, name)
 		case foundData:
@@ -424,9 +421,8 @@ func comparisonOf(module string, c comparison, opts takeOptions) (preview string
 	}
 	// And its settings on this machine, composed against its definition (rule 1, rule 6).
 	for _, layer := range c.layers {
-		said := layer.Whole()
-		keys := make([]string, 0, len(said))
-		for k := range said {
+		keys := make([]string, 0, len(layer.Values))
+		for k := range layer.Values {
 			keys = append(keys, k)
 		}
 		sort.Strings(keys)
@@ -723,7 +719,7 @@ func converge(ctx context.Context, open *stores, node string, yes bool, digest s
 		return "", err
 	}
 	derived := derivedFilter{rules: rules, foundation: with.Foundation, mesh: with.Mesh,
-		outward: plan.PublicDomain != "", outwardLinks: with.OutwardLinks, local: with.LocalNetworks}
+		outward: plan.PublicDomain != "", outwardLinks: with.OutwardLinks}
 	filtering, err := inv.FilteringOf(ctx, node)
 	if err != nil {
 		return "", err
@@ -931,9 +927,6 @@ type derivedFilter struct {
 	// The filter constrains what arrives on them; everything arriving elsewhere is this machine's
 	// own guest and is not filtered.
 	outwardLinks []string
-	// local is the machine's local networks, which a port from `local-network` stays open to (novox/hq
-	// ADR 0340).
-	local []string
 }
 
 // closesOutside is what a narrowing from everywhere to the private network is called: it closes.
@@ -981,17 +974,6 @@ func (d derivedFilter) fate(r inventory.Reach) string {
 			if !onMesh {
 				return fmt.Sprintf("%s — declared by %s from the mesh only", closesOutside, by)
 			}
-		case catalogue.FromLocalNetwork:
-			// The private network and this machine's local networks (novox/hq ADR 0340): it closes to
-			// everything else outside, and says which local networks stay.
-			if !onMesh {
-				if len(d.local) == 0 {
-					return fmt.Sprintf("%s — declared by %s from the local network, and this machine "+
-						"reported none", closesOutside, by)
-				}
-				return fmt.Sprintf("WILL CLOSE to everything outside the private network and %s — declared "+
-					"by %s from the local network", strings.Join(d.local, ", "), by)
-			}
 		}
 		return fmt.Sprintf("declared by %s (from %s)", by, rule.From)
 	}

cmd/mesh-controller/advisories_counted_test.go

@@ -1,180 +0,0 @@
-package main
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **A refusal the bus said once is counted once** (novox/hq issue 402). The bus refused the controller
-// one publish at 18:52:59 UTC on 2026-10-10 and never again, yet S9 looked at the one remembered
-// advisory every half minute for the hour it is kept, and the condition said "observed 15 time(s), last
-// 13s ago" with a refusal in its evidence every 30 seconds: two of us read it as a refusal going on and
-// went looking for a missing grant. The condition counts what the bus said, with when it last said it,
-// never how often the controller looked.
-func TestARefusalSaidOnceIsCountedOnceHoweverOftenItIsLookedAt(t *testing.T) {
-	refused := time.Date(2026, 10, 10, 18, 52, 59, 0, time.UTC)
-	now := refused.Add(10 * time.Second)
-	store := conditions.NewInMemory()
-	k := conditions.NewKeeper(t.Context(), conditions.Options{Store: store, History: store,
-		Teller: &conditions.Told{}, Now: func() time.Time { return now }})
-	t.Cleanup(func() { k.Close(t.Context()) })
-
-	// The words the live condition bus.controller.refused carried on 2026-10-10.
-	said := "the bus refused the controller: nats: permissions violation: Permissions Violation for " +
-		`Publish to "mesh.seat.mesh-delivery.tool.times"`
-	advisory := link.Advisory{Kind: link.AdvisoryRefused, ID: "controller", Said: said,
-		First: refused, Last: refused, Count: 1}
-	look := func() conditions.Condition {
-		t.Helper()
-		f := &signalFacts{now: now, host: "novox", advisories: []link.Advisory{advisory}}
-		if err := k.Reconcile(t.Context(), "S9", watchAdvisories(f)); err != nil {
-			t.Fatal(err)
-		}
-		c, found, err := conditions.ReadOne(t.Context(), store, "bus.controller.refused")
-		if err != nil || !found {
-			t.Fatalf("bus.controller.refused: found %v, %v", found, err)
-		}
-		return c
-	}
-
-	var c conditions.Condition
-	for range 15 {
-		c = look()
-		now = now.Add(30 * time.Second)
-	}
-	if c.Observations != 1 || len(c.Evidence) != 1 {
-		t.Fatalf("one refusal, looked at 15 times, reads as observed %d time(s) with %d evidence lines: %+v",
-			c.Observations, len(c.Evidence), c.Evidence)
-	}
-	if !c.LastObserved.Equal(refused) || !c.Evidence[0].At.Equal(refused) {
-		t.Fatalf("last observed %s, evidence at %s: the refusal was at %s", c.LastObserved, c.Evidence[0].At, refused)
-	}
-
-	// The bus refuses it three times more between two looks: the condition counts four refusals, says
-	// the newest, and adds one line of evidence for the look that saw them.
-	again := now.Add(-5 * time.Second)
-	advisory.Last, advisory.Count = again, 4
-	c = look()
-	if c.Observations != 4 || len(c.Evidence) != 2 || !c.LastObserved.Equal(again) || !c.Evidence[0].At.Equal(again) {
-		t.Fatalf("four refusals read as observed %d time(s), last %s, evidence %+v", c.Observations, c.LastObserved, c.Evidence)
-	}
-	if !strings.Contains(c.Summary, "(4 times since 18:52 UTC)") {
-		t.Fatalf("summary %q", c.Summary)
-	}
-	now = now.Add(30 * time.Second)
-	if c = look(); c.Observations != 4 || len(c.Evidence) != 2 {
-		t.Fatalf("a look with nothing new counted: observed %d time(s), evidence %+v", c.Observations, c.Evidence)
-	}
-}
-
-// **A condition that looks at the present still counts its looks** (novox/hq issue 402 changes only
-// what reads a record): a machine silent for three looks was observed three times, and says so.
-func TestAConditionOfThePresentCountsItsLooks(t *testing.T) {
-	now := time.Date(2026, 10, 10, 19, 0, 0, 0, time.UTC)
-	store := conditions.NewInMemory()
-	k := conditions.NewKeeper(t.Context(), conditions.Options{Store: store, History: store,
-		Teller: &conditions.Told{}, Now: func() time.Time { return now }})
-	t.Cleanup(func() { k.Close(t.Context()) })
-	var c conditions.Condition
-	for range 3 {
-		var err error
-		if c, err = k.Observe(t.Context(), conditions.Observation{Scope: conditions.ScopeMachine, ID: "ace",
-			Kind: "silent", Machine: "ace", Severity: conditions.Warning, Summary: "ace has not been heard from",
-			Source: "S1"}); err != nil {
-			t.Fatal(err)
-		}
-		now = now.Add(30 * time.Second)
-	}
-	if c.Observations != 3 || len(c.Evidence) != 3 || !c.LastObserved.Equal(now.Add(-30*time.Second)) {
-		t.Fatalf("observed %d time(s), %d evidence lines, last %s", c.Observations, len(c.Evidence), c.LastObserved)
-	}
-}
-
-// **One key, one watcher** (novox/hq issue 440). A consumer's max-deliveries condition is said from
-// DEAD_LETTERS while it holds a message the consumer gave up on (issue 330). A max-deliveries advisory
-// without a token names the same key; read beside it, each look added an observation and a line of
-// evidence through the dead-letter half, and the two summaries overwrote each other on every look. The
-// dead-letter row alone says that key, and counts the messages given up on, never the looks.
-func TestAHeldDeadLetterIsCountedByWhatWasGivenUpNotByTheLooks(t *testing.T) {
-	gaveUp := time.Date(2026, 10, 10, 21, 4, 0, 0, time.UTC)
-	now := gaveUp.Add(20 * time.Second)
-	store := conditions.NewInMemory()
-	k := conditions.NewKeeper(t.Context(), conditions.Options{Store: store, History: store,
-		Teller: &conditions.Told{}, Now: func() time.Time { return now }})
-	t.Cleanup(func() { k.Close(t.Context()) })
-
-	const key = "bus.EVENTS.media_sonarr.max-deliveries"
-	held := map[string]int{"EVENTS.media_sonarr": 1}
-	newest := map[string]time.Time{"EVENTS.media_sonarr": gaveUp}
-	advisory := link.Advisory{Kind: link.AdvisoryMaxDeliveries, ID: "EVENTS.media_sonarr", Stream: "EVENTS",
-		Consumer: "media_sonarr", Said: "sonarr on media handed message 7 over 5 times and gave up on it",
-		First: gaveUp, Last: gaveUp, Count: 1}
-	look := func() conditions.Condition {
-		t.Helper()
-		f := &signalFacts{now: now, host: "novox", advisories: []link.Advisory{advisory},
-			deadLetters: held, deadLettersNewest: newest}
-		if err := k.Reconcile(t.Context(), "S9", watchAdvisories(f)); err != nil {
-			t.Fatal(err)
-		}
-		c, found, err := conditions.ReadOne(t.Context(), store, key)
-		if err != nil || !found {
-			t.Fatalf("%s: found %v, %v", key, found, err)
-		}
-		if !strings.Contains(c.Summary, "dead-letters verb") {
-			t.Fatalf("the summary is not the dead-letter row's: %q", c.Summary)
-		}
-		return c
-	}
-
-	var c conditions.Condition
-	for range 5 {
-		c = look()
-		now = now.Add(30 * time.Second)
-	}
-	if c.Observations != 1 || len(c.Evidence) != 1 || !c.LastObserved.Equal(gaveUp) {
-		t.Fatalf("one message given up on, looked at five times, reads as observed %d time(s), last %s, "+
-			"with %d evidence lines: %+v", c.Observations, c.LastObserved, len(c.Evidence), c.Evidence)
-	}
-
-	// The consumer gives up on a second message between two looks: two given up on, one more line.
-	again := now.Add(-10 * time.Second)
-	held["EVENTS.media_sonarr"], newest["EVENTS.media_sonarr"] = 2, again
-	c = look()
-	if c.Observations != 2 || len(c.Evidence) != 2 || !c.LastObserved.Equal(again) {
-		t.Fatalf("two given up on read as observed %d time(s), last %s, evidence %+v", c.Observations,
-			c.LastObserved, c.Evidence)
-	}
-	now = now.Add(30 * time.Second)
-	if c = look(); c.Observations != 2 || len(c.Evidence) != 2 {
-		t.Fatalf("a look with nothing new counted: observed %d time(s), evidence %+v", c.Observations, c.Evidence)
-	}
-}
-
-// The advisory still says the max-deliveries it alone knows: a message given up on that could not be
-// kept, under a key of its own (issue 330), which issue 440's change leaves as it was.
-func TestAMessageThatCouldNotBeKeptIsStillSaidFromTheAdvisory(t *testing.T) {
-	at := time.Date(2026, 10, 10, 21, 4, 0, 0, time.UTC)
-	f := &signalFacts{now: at, host: "novox", advisories: []link.Advisory{{Kind: link.AdvisoryMaxDeliveries,
-		ID: "EVENTS.media_sonarr", Stream: "EVENTS", Consumer: "media_sonarr", Token: link.AdvisoryNotKept,
-		Said: "sonarr on media gave up on message 7, and it could not be kept", First: at, Last: at, Count: 1}}}
-	said := watchAdvisories(f)
-	if len(said) != 1 || said[0].Key() != "bus.EVENTS.media_sonarr.not-kept" {
-		t.Fatalf("%+v", said)
-	}
-}
-
-// A max-deliveries advisory without a token names a consumer's dead-letter key, which only DEAD_LETTERS
-// says (novox/hq issues 330 and 440): with nothing held, the advisory alone raises nothing.
-func TestAMaxDeliveriesAdvisoryAloneRaisesNothing(t *testing.T) {
-	at := time.Date(2026, 10, 10, 21, 4, 0, 0, time.UTC)
-	f := &signalFacts{now: at, host: "novox", advisories: []link.Advisory{{Kind: link.AdvisoryMaxDeliveries,
-		ID: "EVENTS.media_sonarr", Stream: "EVENTS", Consumer: "media_sonarr",
-		Said: "sonarr on media handed message 7 over 5 times and gave up on it", First: at, Last: at, Count: 1}}}
-	if said := watchAdvisories(f); len(said) != 0 {
-		t.Fatalf("said %+v", said)
-	}
-}

cmd/mesh-controller/agent_account.go

@@ -1,253 +0,0 @@
-package main
-
-// The account agents run as (novox/hq ADR 0266).
-//
-// On the control node every agent session ran as the operator's account, which may become root without a
-// password — so any agent there could become root without a person, and ADR 0259 §8 (an answer from the
-// operator's phone authorises an act) rests on that being false where the router and its channels run. The
-// decision: a node may name an account its agents run as, of their own and without sudo; the operator's
-// account keeps its sudo.
-//
-//   - **Named at the controller's terminal only** (`node agent-account`): not a verb, not a setting, so no
-//     agent can name itself another account. Empty is a real state: agents run as the operator there.
-//   - **Composed** as `${machine:agent-account}`, `${machine:agent-home}` and `${machine:agent-root}` for the
-//     agent's module, which declares the account with `root: never`, and as MESH_AGENT_ACCOUNT and
-//     MESH_AGENT_HOME for its tools (catalogue/machine_into_files.go, runtime.go).
-//   - **Judged by the machine itself.** The node-engine reads, on every look, whether an account declared
-//     `root: never` can become root without a person — uid 0, a group that grants root, a sudo rule, a
-//     secret of the mesh it may read — and says it as the declaring module's account verdict, marked
-//     Root "never". agentConfined reads that verdict; the self-check (probe DA) raises
-//     `agent-can-become-root` while it does not hold, and `node show` says it.
-//
-// A verdict not given is never a pass: an engine older than the judging, an account not yet declared, a
-// statement that says nothing of it — each is "not judged", and fails.
-
-import (
-	"context"
-	"fmt"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// kindAgentCanBecomeRoot is the condition raised while a machine's agent account can become root without
-// a person, or is not judged (ADR 0266).
-const kindAgentCanBecomeRoot = "agent-can-become-root"
-
-// agentAccountProbe is the self-check's probe of it.
-const agentAccountProbe = "DA"
-
-// agentConfined says whether the agents of a machine that names an agent account are confined: the
-// machine's newest statement holds a healthy account verdict, judged for root, on that account. named is
-// false for a machine that names none — agents run as the operator account there, which this does not
-// judge. why is said either way, in the mesh's words; err is a store that could not be read.
-//
-// The one judgement: `node show`, the self-check, and ADR 0259's router honouring a verified sender read
-// it here.
-// now is the judging clock, threaded so a caller judging several things at one instant judges them all at it.
-func agentConfined(ctx context.Context, inv *inventory.Inventory, node string, now time.Time) (named, confined bool, why string, err error) {
-	n, err := inv.NodeByName(ctx, node)
-	if err != nil {
-		return false, false, "", err
-	}
-	if n.AgentAccount == "" {
-		return false, false, fmt.Sprintf("%s names no agent account: agents run as the operator account (%s)",
-			node, orNoneKnown(n.Account)), nil
-	}
-	h, had, err := inv.HealthOf(ctx, node)
-	if err != nil {
-		return true, false, "", err
-	}
-	confined, why = judgedConfined(n.AgentAccount, h, had, now)
-	return true, confined, why, nil
-}
-
-// verdictFreshFor is how old the statement holding the verdict may be, by this controller's clock. A
-// node-engine states its health on every change and at least every five minutes (mesh-host's sayAnyway), so
-// three statements missed is a node-engine stopped, or a machine away. **A stale verdict is not a pass**: an
-// agent that stopped the node-engine must not leave "cannot become root" standing from before.
-const verdictFreshFor = 15 * time.Minute
-
-// judgedConfined is the judgement over one statement, without the store, at now.
-func judgedConfined(agent string, h inventory.NodeHealth, had bool, now time.Time) (bool, string) {
-	if !had {
-		return false, fmt.Sprintf("the agent account %s is not judged: the machine's node-engine has stated "+
-			"nothing of what it runs", agent)
-	}
-	if age := now.Sub(h.HeardAt); age > verdictFreshFor {
-		return false, fmt.Sprintf("the agent account %s is not judged: the machine's newest statement was heard at "+
-			"%s, more than %d minutes ago, and a verdict that old is not a verdict on now", agent,
-			h.HeardAt.Local().Format("2006-01-02 15:04"), int(verdictFreshFor.Minutes()))
-	}
-	if h.Contract < link.RootContract {
-		return false, fmt.Sprintf("the agent account %s is not judged: the machine's node-engine is older than "+
-			"the judging of an account's root (its statement's contract is %d, the judging is %d)",
-			agent, h.Contract, link.RootContract)
-	}
-	var verdicts []inventory.ResourceHealth
-	for _, r := range h.Resources {
-		if r.Kind == link.KindAccount && r.Target == agent && r.Root == link.RootNever {
-			verdicts = append(verdicts, r)
-		}
-	}
-	if len(verdicts) == 0 {
-		return false, fmt.Sprintf("the agent account %s is not judged: the machine's newest statement holds no "+
-			"verdict on it — no module there declares it never to become root, or the declaration naming it "+
-			"has not been applied", agent)
-	}
-	sort.Slice(verdicts, func(i, j int) bool {
-		return verdicts[i].Module+verdicts[i].Resource < verdicts[j].Module+verdicts[j].Resource
-	})
-	for _, v := range verdicts {
-		switch v.State {
-		case link.StateHealthy:
-		case link.StateUnhealthy:
-			// The engine's own words, which start with link.ReasonRoot when it found a way to root.
-			return false, fmt.Sprintf("the agent account %s %s (said by %s's %s)", agent,
-				orNoneKnown(v.Reason), v.Module, v.Resource)
-		default:
-			return false, fmt.Sprintf("the agent account %s is not judged: %s (%s's %s, %s)", agent,
-				orNoneKnown(v.Reason), v.Module, v.Resource, v.State)
-		}
-	}
-	return true, fmt.Sprintf("the agent account %s cannot become root without a person (judged %s)", agent,
-		h.SaidAt.Local().Format("2006-01-02 15:04"))
-}
-
-// searchQuietFor is how long the controller lets an agent account's verdict wait for the node-engine's setuid
-// search before that is itself the urgent condition: the longest a search is expected to take (link.RootSearchQuiet,
-// the engine's own value; novox/hq issue 361 — the search runs to completion, with no bound of its own), counted
-// from when this controller first saw it waiting, never from the engine's start. Quiet raises nothing; it never
-// makes the agent account confined, which only a healthy verdict from a complete, fresh search does.
-const searchQuietFor = link.RootSearchQuiet
-
-// The kinds of an agent account's verdict, for the quiet a search earns.
-const (
-	verdictOther    = iota // anything else: a stale statement, an older engine, no verdict, another unknown
-	verdictPending         // waiting for the search, and otherwise healthy
-	verdictComplete        // judged: healthy, or a way to root found
-)
-
-// rootVerdictKind reads a statement for the agent account (novox/hq ADR 0266): pending when every verdict on it
-// is healthy or not judged yet because the engine's setuid search runs, at least one of them that; complete when
-// every verdict is healthy or one found a way to root. The engine's own "since" is not read: it starts again at
-// every restart of the engine.
-func rootVerdictKind(agent string, h inventory.NodeHealth, had bool, now time.Time) int {
-	if !had || now.Sub(h.HeardAt) > verdictFreshFor || h.Contract < link.RootContract {
-		return verdictOther
-	}
-	pending, any := false, false
-	for _, r := range h.Resources {
-		if r.Kind != link.KindAccount || r.Target != agent || r.Root != link.RootNever {
-			continue
-		}
-		any = true
-		switch {
-		case r.State == link.StateHealthy:
-		case r.State == link.StateUnhealthy:
-			return verdictComplete
-		case r.State == link.StateUnknown && strings.HasPrefix(r.Reason, link.ReasonRootPending):
-			pending = true
-		default:
-			return verdictOther
-		}
-	}
-	switch {
-	case !any:
-		return verdictOther
-	case pending:
-		return verdictPending
-	}
-	return verdictComplete
-}
-
-// searchStillRunning says the one thing keeping an agent account from being judged is the node-engine's setuid
-// search, and that this controller first saw it waiting less than searchQuietFor ago — kept in the store, so a
-// node-engine restarted in a loop does not keep it quiet. A complete verdict forgets when it began.
-func searchStillRunning(ctx context.Context, inv *inventory.Inventory, node, agent string, h inventory.NodeHealth,
-	had bool, now time.Time) (bool, error) {
-	switch rootVerdictKind(agent, h, had, now) {
-	case verdictComplete:
-		return false, inv.RootSearchJudged(ctx, node)
-	case verdictPending:
-		since, err := inv.RootSearchPending(ctx, node, now)
-		if err != nil {
-			return false, err
-		}
-		return now.Sub(since) <= searchQuietFor, nil
-	}
-	return false, nil
-}
-
-// probeAgentAccounts is DA: every machine that names an agent account has it judged, on its node-engine's
-// newest statement, unable to become root without a person (ADR 0266).
-func probeAgentAccounts(ctx context.Context, d *doctor) ([]conditions.Observation, error) {
-	inv := d.open.inventory
-	nodes, err := inv.Nodes(ctx)
-	if err != nil {
-		return nil, err
-	}
-	var out []conditions.Observation
-	for _, n := range nodes {
-		if n.AgentAccount == "" {
-			continue
-		}
-		h, had, err := inv.HealthOf(ctx, n.Name)
-		if err != nil {
-			return nil, err
-		}
-		now := time.Now()
-		quiet, err := searchStillRunning(ctx, inv, n.Name, n.AgentAccount, h, had, now)
-		if err != nil {
-			return nil, err
-		}
-		confined, why := judgedConfined(n.AgentAccount, h, had, now)
-		if confined {
-			continue
-		}
-		// Not judged yet only because the node-engine's search runs and no complete, fresh one judges: not the
-		// urgent condition after every restart. The agent is still not confined — ADR 0259's router reads
-		// agentConfined, not this — and `node show` still says not judged. Loud again once the search fails,
-		// waits past searchQuietFor, or the statement goes stale.
-		if quiet {
-			continue
-		}
-		out = append(out, conditions.Observation{Scope: conditions.ScopeMachine, ID: n.Name, Token: "agent-root",
-			Machine: n.Name, Severity: conditions.Urgent,
-			Summary: fmt.Sprintf("on %s, %s (ADR 0266): an agent there may become root without a person, and "+
-				"no answer from a channel authorises an act there (ADR 0259 §8)", n.Name, why),
-			Said: why})
-	}
-	return sortedFound(out), nil
-}
-
-// agentAccountLines is what `node show` says of the account agents run as.
-func agentAccountLines(ctx context.Context, inv *inventory.Inventory, n inventory.Node) []string {
-	if n.AgentAccount == "" {
-		return []string{fmt.Sprintf("  agents run as      the operator account (%s); no agent account is named",
-			orNoneKnown(n.Account))}
-	}
-	_, confined, why, err := agentConfined(ctx, inv, n.Name, time.Now())
-	if err != nil {
-		return []string{fmt.Sprintf("  agents run as      %s (home %s); whether it can become root could NOT be read: %v",
-			n.AgentAccount, n.AgentHome(), err)}
-	}
-	verdict := "CAN become root, or is not judged: " + why
-	if confined {
-		verdict = why
-	}
-	return []string{fmt.Sprintf("  agents run as      %s (home %s)", n.AgentAccount, n.AgentHome()),
-		"                     " + verdict}
-}
-
-// orNoneKnown is a value, or that none is known.
-func orNoneKnown(s string) string {
-	if strings.TrimSpace(s) == "" {
-		return "none known"
-	}
-	return s
-}

cmd/mesh-controller/agent_account_integration_test.go

@@ -1,161 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	snapshot "github.com/novox/mesh-controller/internal/facts"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-	"github.com/novox/mesh-host/rootsearch"
-)
-
-func TestTheSelfCheckSaysAnAgentAccountThatCanBecomeRoot(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	for _, n := range []string{"anchor", "laptop"} {
-		if _, err := inv.NodeByName(ctx, n); err != nil {
-			if _, err := inv.AddNode(ctx, n); err != nil {
-				t.Fatal(err)
-			}
-		}
-		if err := inv.SetAccount(ctx, n, "ops", ""); err != nil {
-			t.Fatal(err)
-		}
-	}
-	if err := inv.SetAgentAccount(ctx, "anchor", "agent", ""); err != nil {
-		t.Fatal(err)
-	}
-	d := &doctor{open: open}
-	found, err := probeAgentAccounts(ctx, d)
-	if err != nil {
-		t.Fatal(err)
-	}
-	found = onlyMachine(found, "anchor")
-	if len(found) != 1 || found[0].Machine != "anchor" || found[0].Severity != conditions.Urgent ||
-		!strings.Contains(found[0].Said, "not judged") {
-		t.Fatalf("a named agent account with no verdict: %+v", found)
-	}
-	w := plainWordings[kindAgentCanBecomeRoot](conditions.Observation{Kind: kindAgentCanBecomeRoot, Machine: "anchor"})
-	if w.Headline == "" || w.Needs == "" || w.Resolved == "" {
-		t.Errorf("the condition has no plain words: %+v", w)
-	}
-
-	healthy := inventory.ResourceHealth{Module: "claude-code", Resource: "claude-code.agent-account",
-		Kind: link.KindAccount, Target: "agent", State: link.StateHealthy, Root: link.RootNever, Account: "agent"}
-	if _, err := inv.RecordHealth(ctx, inventory.NodeHealth{Node: "anchor", Contract: link.RootContract,
-		SaidAt: time.Now(), HeardAt: time.Now(), Resources: []inventory.ResourceHealth{healthy}}); err != nil {
-		t.Fatal(err)
-	}
-	if found, err = probeAgentAccounts(ctx, d); err != nil || len(onlyMachine(found, "anchor")) != 0 {
-		t.Fatalf("a judged agent account still fails: %+v %v", found, err)
-	}
-	if named, confined, why, err := agentConfined(ctx, inv, "anchor", time.Now()); err != nil || !named || !confined {
-		t.Fatalf("agentConfined on anchor: %v %v %q %v", named, confined, why, err)
-	}
-	if named, _, why, err := agentConfined(ctx, inv, "laptop", time.Now()); err != nil || named ||
-		!strings.Contains(why, "operator account") {
-		t.Fatalf("agentConfined on a machine naming none: %v %q %v", named, why, err)
-	}
-}
-
-func TestTheFactsCarryTheAgentAccountAsAPseudonym(t *testing.T) {
-	open, _ := aMeshWithSecrets(t)
-	ctx := t.Context()
-	if err := open.inventory.SetAccount(ctx, "anchor", "keeper", ""); err != nil {
-		t.Fatal(err)
-	}
-	if err := open.inventory.SetAgentAccount(ctx, "anchor", "warden", ""); err != nil {
-		t.Fatal(err)
-	}
-	f, err := gatherFacts(ctx, open, "2.11.17")
-	if err != nil {
-		t.Fatal(err)
-	}
-	body, _ := f.Encode()
-	if strings.Contains(string(body), "warden") {
-		t.Error("the agent account's name is in the snapshot")
-	}
-	m, ok := f.Machine(snapshot.Pseudonym("machine", "anchor"))
-	if !ok || m.AgentAccount != snapshot.Pseudonym("account", "warden") || m.Account == m.AgentAccount {
-		t.Fatalf("the anchor's agent account reads as %q (operator %q)", m.AgentAccount, m.Account)
-	}
-}
-
-func TestASearchStillRunningAfterARestartIsNotUrgent(t *testing.T) {
-	if searchQuietFor != rootsearch.Quiet {
-		t.Fatalf("the quiet is %s and the node-engine's %s: they are one value", searchQuietFor, rootsearch.Quiet)
-	}
-	// A daily search that finishes within the quiet never leaves the account unjudged between two of them.
-	if rootsearch.FreshFor < rootsearch.Every+rootsearch.Quiet {
-		t.Fatalf("a complete search judges for %s, less than a day's search (%s) and the quiet (%s)",
-			rootsearch.FreshFor, rootsearch.Every, rootsearch.Quiet)
-	}
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	if _, err := inv.NodeByName(ctx, "anchor"); err != nil {
-		if _, err := inv.AddNode(ctx, "anchor"); err != nil {
-			t.Fatal(err)
-		}
-	}
-	if err := inv.SetAgentAccount(ctx, "anchor", "agent", ""); err != nil {
-		t.Fatal(err)
-	}
-	d := &doctor{open: open}
-	say := func(state, reason string) []conditions.Observation {
-		t.Helper()
-		// The engine's since is always now: it was just restarted.
-		v := inventory.ResourceHealth{Module: "claude-code", Resource: "claude-code.agent-account",
-			Kind: link.KindAccount, Target: "agent", State: state, Reason: reason, Root: link.RootNever,
-			Account: "agent", Since: time.Now()}
-		if _, err := inv.RecordHealth(ctx, inventory.NodeHealth{Node: "anchor", Contract: link.RootContract,
-			SaidAt: time.Now(), HeardAt: time.Now(), Resources: []inventory.ResourceHealth{v}}); err != nil {
-			t.Fatal(err)
-		}
-		found, err := probeAgentAccounts(ctx, d)
-		if err != nil {
-			t.Fatal(err)
-		}
-		return onlyMachine(found, "anchor")
-	}
-	running := link.ReasonRootPending + ": the search for setuid programs, started at 19:21, has not finished yet"
-	healthy := func() {
-		t.Helper()
-		if found := say(link.StateHealthy, ""); len(found) != 0 {
-			t.Fatalf("a healthy verdict raised: %+v", found)
-		}
-	}
-	if found := say(link.StateUnknown, running); len(found) != 0 {
-		t.Fatalf("a search first seen now was raised: %+v", found)
-	}
-	if _, confined, why, _ := agentConfined(ctx, inv, "anchor", time.Now()); confined || !strings.Contains(why, "not judged") {
-		t.Fatalf("an account whose search runs was read as confined: %q", why)
-	}
-	// The engine restarted again and again, each statement's own since fresh: the controller's clock runs on.
-	if _, err := inv.RootSearchPending(ctx, "anchor", time.Now().Add(-searchQuietFor-time.Minute)); err != nil {
-		t.Fatal(err)
-	}
-	healthy() // a complete verdict forgets when the waiting began …
-	if _, err := inv.RootSearchPending(ctx, "anchor", time.Now().Add(-searchQuietFor-time.Minute)); err != nil {
-		t.Fatal(err) // … and this restart loop began past the bound
-	}
-	if found := say(link.StateUnknown, running); len(found) != 1 || found[0].Severity != conditions.Urgent {
-		t.Fatalf("a search pending past the bound, by the controller's clock, was not urgent: %+v", found)
-	}
-	healthy()
-	incomplete := rootsearch.ReasonIncomplete + ": the search for setuid programs did not finish (last tried at " +
-		"19:23: timeout); it is tried again later"
-	if found := say(link.StateUnknown, incomplete); len(found) != 1 || found[0].Severity != conditions.Urgent {
-		t.Fatalf("a search that did not finish was not urgent: %+v", found)
-	}
-	if found := say(link.StateUnhealthy, link.ReasonRoot+": in the group docker; "+running); len(found) != 1 ||
-		found[0].Severity != conditions.Urgent {
-		t.Fatalf("a way to root found while the search runs was not urgent: %+v", found)
-	}
-}

cmd/mesh-controller/agent_account_test.go

@@ -1,134 +0,0 @@
-package main
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The agent account's judgement (novox/hq ADR 0266): confined only on a healthy account verdict judged for
-// root, on the very account; every verdict not given — no statement, an older engine, no verdict on it, a
-// verdict of unknown — is "not judged" and fails, never a pass.
-func TestAnAgentAccountIsConfinedOnlyOnAHealthyVerdictJudgedForRoot(t *testing.T) {
-	at := time.Date(2026, 10, 8, 19, 21, 0, 0, time.UTC)
-	verdict := func(target, root, state, reason string) inventory.ResourceHealth {
-		return inventory.ResourceHealth{Module: "claude-code", Resource: "claude-code.agent-account",
-			Kind: link.KindAccount, Target: target, State: state, Reason: reason, Root: root, Account: target}
-	}
-	statement := func(contract int, rs ...inventory.ResourceHealth) inventory.NodeHealth {
-		return inventory.NodeHealth{Node: "anchor", Contract: contract, SaidAt: at, HeardAt: at, Resources: rs}
-	}
-	for _, c := range []struct {
-		name     string
-		h        inventory.NodeHealth
-		had      bool
-		confined bool
-		says     string
-	}{
-		{"judged and unable", statement(link.RootContract, verdict("agent", link.RootNever, link.StateHealthy, "")),
-			true, true, "cannot become root without a person"},
-		{"judged and able", statement(link.RootContract, verdict("agent", link.RootNever, link.StateUnhealthy,
-			link.ReasonRoot+": in the group docker, which grants root")), true, false, "in the group docker"},
-		{"a verdict of unknown", statement(link.RootContract, verdict("agent", link.RootNever, link.StateUnknown,
-			"sudo could not be read")), true, false, "not judged"},
-		{"no statement", inventory.NodeHealth{}, false, false, "not judged"},
-		{"an older engine", statement(link.ReadinessContract, verdict("agent", "", link.StateHealthy, "")),
-			true, false, "older than the judging"},
-		{"a verdict on groups only", statement(link.RootContract, verdict("agent", "", link.StateHealthy, "")),
-			true, false, "no verdict on it"},
-		{"a verdict on another account", statement(link.RootContract, verdict("ops", link.RootNever, link.StateHealthy, "")),
-			true, false, "no verdict on it"},
-	} {
-		confined, why := judgedConfined("agent", c.h, c.had, at.Add(time.Minute))
-		if confined != c.confined || !strings.Contains(why, c.says) {
-			t.Errorf("%s: confined %v, %q; want %v saying %q", c.name, confined, why, c.confined, c.says)
-		}
-	}
-	// A verdict heard longer ago than the bound is no verdict: an agent that stopped the node-engine must not
-	// leave "healthy" standing.
-	fresh := statement(link.RootContract, verdict("agent", link.RootNever, link.StateHealthy, ""))
-	if ok, _ := judgedConfined("agent", fresh, true, at.Add(verdictFreshFor)); !ok {
-		t.Error("a verdict exactly at the bound is still one")
-	}
-	if ok, why := judgedConfined("agent", fresh, true, at.Add(verdictFreshFor+time.Second)); ok ||
-		!strings.Contains(why, "not judged") {
-		t.Errorf("a stale healthy verdict passed: %q", why)
-	}
-}
-
-// DA raises an urgent condition, with plain words, on a machine whose agent account is not judged unable to
-// become root; a machine that names none is not its to judge.
-
-func TestTheAgentRootWordsArePlain(t *testing.T) {
-	w := plainWordings[kindAgentCanBecomeRoot](conditions.Observation{Kind: kindAgentCanBecomeRoot, Machine: "anchor"})
-	if why, ok := conditions.PlainWords(w, "anchor"); !ok {
-		t.Fatalf("not plain: %s: %+v", why, w)
-	}
-}
-
-func onlyMachine(obs []conditions.Observation, machine string) []conditions.Observation {
-	var out []conditions.Observation
-	for _, o := range obs {
-		if o.Machine == machine {
-			out = append(out, o)
-		}
-	}
-	return out
-}
-
-// The snapshot a merge check composes from carries the agent account as a pseudonym (novox/hq ADR 0266),
-// so a change is judged against machines that name one, and the name never leaves.
-
-// No verb runs a `node` command that sets something: through the generic `command` verb, `node account`,
-// `node agent-account` and every other `node` subcommand but list and show are refused, naming the terminal.
-func TestNoVerbSetsANodesAccounts(t *testing.T) {
-	for _, line := range []string{
-		"node agent-account novox --clear",
-		"node agent-account novox ops",
-		"node account novox agent",
-		"node account novox",
-		"node add intruder",
-		"node public-domain novox --clear",
-		"node",
-		"node frobnicate",
-	} {
-		argv, err := argvFor("command", map[string]any{"command": line})
-		if err == nil || !strings.Contains(err.Error(), "controller's terminal") ||
-			!strings.Contains(err.Error(), "ADR 0266") {
-			t.Errorf("%q ran as %v (%v); want a refusal naming the terminal", line, argv, err)
-		}
-	}
-	for _, line := range []string{"node show novox", "node list --json", "status --json"} {
-		if _, err := argvFor("command", map[string]any{"command": line}); err != nil {
-			t.Errorf("%q, a read, was refused: %v", line, err)
-		}
-	}
-	if err := terminalOnly([]string{"node", "account", "a", "b"}); err == nil {
-		t.Error("the refusal is not only the command verb's")
-	}
-}
-
-// Naming the agent account is the controller's terminal's alone: the `node` verb only shows.
-func TestTheNodeVerbOnlyShows(t *testing.T) {
-	argv, err := argvFor("node", map[string]any{"node": "anchor"})
-	if err != nil || strings.Join(argv, " ") != "node show anchor" {
-		t.Fatalf("the node verb runs %v (%v)", argv, err)
-	}
-	for _, v := range catalogue.ControllerVerbs {
-		if strings.Contains(v.Name, "agent") {
-			t.Errorf("a verb %q may name the agent account", v.Name)
-		}
-	}
-}
-
-// Until a complete search for setuid programs judges — none since the node-engine's state was kept, or the last
-// older than the engine lets one judge — the agent account is not judged, and the search runs to its end with no
-// bound (novox/hq issue 361). DA does not raise that as urgent within searchQuietFor, counted from when this
-// controller first saw it waiting — never from the engine's own "since", which a restart resets, so an engine
-// restarted in a loop does not keep it quiet. The account is still not confined, and `node show` still says not
-// judged; a search that failed, or a way to root found, is urgent at once.

cmd/mesh-controller/api.go

@@ -95,10 +95,10 @@ func commands(who Authenticator) http.Handler {
 	mux := http.NewServeMux()
 
 	mux.HandleFunc("POST /assign", acting(who, true, func(ctx context.Context, open *stores, in request) (string, error) {
-		return assign(ctx, open, in.Node, splitModules(in.Module)...)
+		return assign(ctx, open, in.Node, in.Module)
 	}))
 	mux.HandleFunc("POST /unassign", acting(who, true, func(ctx context.Context, open *stores, in request) (string, error) {
-		return unassign(ctx, open, in.Node, splitModules(in.Module)...)
+		return unassign(ctx, open, in.Node, in.Module)
 	}))
 	// Adoption (novox/hq ADR 0100): the same acts as `take`, `converge` and `adopt`.
 	mux.HandleFunc("POST /take", acting(who, true, func(ctx context.Context, open *stores, in request) (string, error) {

cmd/mesh-controller/api_test.go

@@ -1,5 +1,3 @@
-//go:build integration
-
 package main
 
 import (

cmd/mesh-controller/apply_failing.go

@@ -1,164 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// kindApplyFailing is S21's kind: a machine whose declarations have been refused, or applied only in part,
-// for longer than one apply interval (novox/hq issue 233).
-const kindApplyFailing = "apply-failing"
-
-// applyEvery is how often a node-engine applies what it was last told when nothing new arrives: its
-// ReconcileEvery. A failure still there after one more of them is not one the next apply clears.
-const applyEvery = 5 * time.Minute
-
-// packageManagerKey is how a node-engine names a package manager that does not answer among what failed
-// (mesh-host's probe.go): "the package manager (pacman)".
-const packageManagerKey = "the package manager ("
-
-// watchApplyFailing is S21: **a machine that does not apply what it was sent is said by the mesh, not only
-// to someone who asks for `status`** (novox/hq issue 233, issue 187's family). A workstation refused every
-// declaration for an hour and a half because its package manager did not answer, and the mesh's only word
-// on it was a line in `status`. Raised once the machine's first report of this failure is older than one apply
-// interval **while the machine is heard** — judged by time, not by how many reports said it: a node-engine
-// says a re-apply only when how it went changed, so the same failure is one report however long it lasts.
-// Names the refusal's or the failure's words; cleared by the clean apply the node-engine then says. Not while
-// the machine is silent, asleep or not known: S1 says silent, and asleep is not lost.
-func watchApplyFailing(f *signalFacts) []conditions.Observation {
-	heard := map[string]bool{}
-	for _, m := range f.machines {
-		if !m.asleep() && !m.lastHeard.IsZero() && f.now.Sub(m.lastHeard) <= heartbeatBound(m.every) {
-			heard[m.name] = true
-		}
-	}
-	var out []conditions.Observation
-	said := map[string]bool{}
-	for _, d := range f.doing {
-		if !d.Wrong() || d.Since == nil || f.now.Sub(*d.Since) <= applyEvery || !heard[d.Node] {
-			continue
-		}
-		out = append(out, applyFailing(d, f.now))
-		said[d.Node] = true
-	}
-	// **A module's files the provisioner failed to place are a failed apply too** (novox/hq ADR 0362 §3): its client's
-	// newest word, judged by the same bound — the client says a failure once, and fills again on every change —
-	// on a machine whose node-engine applied what it was sent.
-	failed := map[string][]inventory.ProvReport{}
-	for _, r := range f.provFailed {
-		if r.Status != inventory.ProvFailed || f.now.Sub(r.At) <= applyEvery || !heard[r.Node] || said[r.Node] {
-			continue
-		}
-		failed[r.Node] = append(failed[r.Node], r)
-	}
-	for _, node := range sortedNames(failed) {
-		out = append(out, provisioningFailing(node, failed[node], f.now))
-	}
-	return out
-}
-
-// provisioningFailing is one machine's S21 condition for the modules whose files its provisioner client failed to
-// place.
-func provisioningFailing(m string, failed []inventory.ProvReport, now time.Time) conditions.Observation {
-	sort.Slice(failed, func(a, b int) bool { return failed[a].Module < failed[b].Module })
-	var names, words []string
-	since := failed[0].At
-	for _, r := range failed {
-		names = append(names, r.Module)
-		words = append(words, r.Module+": "+oneLine(orNoReason(r.Reason)))
-		if r.At.Before(since) {
-			since = r.At
-		}
-	}
-	o := conditions.Observation{Scope: conditions.ScopeMachine, ID: m, Kind: kindApplyFailing, Machine: m,
-		Severity: conditions.Warning, Said: strings.Join(words, "; "),
-		Resolved: m + " applies what it is sent again"}
-	o.Summary = fmt.Sprintf("%s's provisioner has failed to place the files of %s since %s (bound %s)", m,
-		strings.Join(names, ", "), since.UTC().Format("2006-01-02 15:04 MST"), ago(applyEvery))
-	o.Headline = m + " is not applying its update"
-	o.Explanation = fmt.Sprintf("The provisioner on %s has not been able to write the files of %s for %s. The "+
-		"details say why.", m, strings.Join(names, ", "), humanDuration(now.Sub(since)))
-	return o
-}
-
-func orNoReason(s string) string {
-	if s == "" {
-		return "no reason given"
-	}
-	return s
-}
-
-// applyFailing is one machine's S21 condition.
-func applyFailing(d inventory.Doing, now time.Time) conditions.Observation {
-	m := d.Node
-	since := d.Since.UTC().Format("2006-01-02 15:04 MST")
-	o := conditions.Observation{Scope: conditions.ScopeMachine, ID: m, Kind: kindApplyFailing, Machine: m,
-		Severity: conditions.Warning, Said: doingWords(d),
-		Resolved: m + " applies what it is sent again"}
-	how := "refused its declaration whole"
-	if d.Outcome != inventory.OutcomeRefused {
-		how = "applied its declaration only in part"
-	}
-	o.Summary = fmt.Sprintf("%s has %s since %s (bound %s): %s", m, how, since, ago(applyEvery), failedNames(d))
-	o.Headline = m + " is not applying its update"
-	o.Explanation = fmt.Sprintf("%s has %s for %s, and trying again has not helped. The details say what fails.",
-		m, plainHow(d), humanDuration(now.Sub(*d.Since)))
-	if tool := unansweringTool(d); tool != "" {
-		o.Summary = fmt.Sprintf("%s: %s does not answer, so no package reaches it; everything else it was sent "+
-			"is applied, since %s (bound %s)", m, tool, since, ago(applyEvery))
-		o.Headline = fmt.Sprintf("%s cannot install packages", m)
-		o.Explanation = fmt.Sprintf("The package manager on %s (%s) has not answered for %s, so no package reaches "+
-			"it. Everything else is still applied, so an update that repairs it can land; if none does, it needs a "+
-			"look on the machine.", m, tool, humanDuration(now.Sub(*d.Since)))
-	}
-	return o
-}
-
-// plainHow is how a machine failed, as the operator reads it.
-func plainHow(d inventory.Doing) string {
-	if d.Outcome == inventory.OutcomeRefused {
-		return "refused every update"
-	}
-	return "applied its updates only in part"
-}
-
-// unansweringTool is the package manager a machine said does not answer, or "".
-func unansweringTool(d inventory.Doing) string {
-	for _, r := range d.Failed {
-		if rest, ok := strings.CutPrefix(r.ID, packageManagerKey); ok {
-			return strings.TrimSuffix(rest, ")")
-		}
-	}
-	return ""
-}
-
-// failedNames is what failed, by name: the refusal, or the failed resources' ids.
-func failedNames(d inventory.Doing) string {
-	if d.Outcome == inventory.OutcomeRefused {
-		return "refused"
-	}
-	ids := make([]string, 0, len(d.Failed))
-	for _, r := range d.Failed {
-		ids = append(ids, r.ID)
-	}
-	sort.Strings(ids)
-	return "failed " + strings.Join(ids, ", ")
-}
-
-// doingWords is the machine's own words on what failed: the evidence, kept inside the mesh.
-func doingWords(d inventory.Doing) string {
-	if d.Outcome == inventory.OutcomeRefused {
-		return "refused: " + oneLine(d.Refused)
-	}
-	var parts []string
-	for _, r := range d.Failed {
-		parts = append(parts, r.ID+": "+oneLine(r.Error))
-	}
-	sort.Strings(parts)
-	return strings.Join(parts, "; ")
-}

cmd/mesh-controller/apply_failing_test.go

@@ -1,123 +0,0 @@
-package main
-
-import (
-	"context"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// unansweringPackageManager is anchor's last report as the workstation's read on 2026-10-04, once its
-// node-engine applies the rest (novox/hq issue 233): the package failed and the package manager did not answer,
-// the same failure on times reports since for before now.
-func unansweringPackageManager(now time.Time, forHowLong time.Duration, times int) inventory.Doing {
-	since := now.Add(-forHowLong)
-	return inventory.Doing{Node: "anchor", Outcome: inventory.OutcomeFailed, At: now.Add(-time.Second),
-		Since: &since, Times: times, Applied: 41, Failed: []inventory.FailedResource{
-			{ID: "apply", Error: `applying "pacman.base": nothing can be said about "base": this is the arch host and ` +
-				"pacman does not answer here. Either this machine is not Arch, or its package database is broken: " +
-				"pacman exited 1: error: config file /etc/pacman.conf could not be read: No such file or directory"},
-			{ID: "the package manager (pacman)", Error: "pacman does not answer here, so every package in this " +
-				"declaration fails and the rest of it is applied (novox/hq issue 233): pacman exited 1: error: config " +
-				"file /etc/pacman.conf could not be read: No such file or directory"}}}
-}
-
-// **A machine whose package manager does not answer is raised by the mesh itself, naming the tool and the
-// probe's words** (novox/hq issue 233): the words in the evidence, the path kept out of the summary.
-func TestAPackageManagerThatDoesNotAnswerIsRaisedNamingItsWords(t *testing.T) {
-	now := time.Date(2026, 10, 4, 14, 0, 0, 0, time.UTC)
-	f := calm(now)
-	f.doing = []inventory.Doing{unansweringPackageManager(now, 90*time.Minute, 18)}
-	got := watchApplyFailing(f)
-	if len(got) != 1 {
-		t.Fatalf("raised %d conditions, want one: %+v", len(got), got)
-	}
-	o := got[0]
-	if o.Key() != "machine.anchor.apply-failing" || o.Machine != "anchor" {
-		t.Errorf("the condition is not the machine's: %s", o.Key())
-	}
-	if !strings.Contains(o.Summary, "pacman does not answer") || !strings.Contains(o.Summary, "since 2026-10-04 12:30") {
-		t.Errorf("the summary does not name the tool and since when: %s", o.Summary)
-	}
-	if strings.Contains(o.Summary, "/etc/") {
-		t.Errorf("the summary carries a path, which belongs in the evidence: %s", o.Summary)
-	}
-	if !strings.Contains(o.Said, "could not be read") {
-		t.Errorf("the evidence does not carry the probe's words: %s", o.Said)
-	}
-	if !strings.Contains(o.Headline, "cannot install packages") || o.Explanation == "" || o.Resolved == "" {
-		t.Errorf("the plain words do not say it: %+v", o)
-	}
-}
-
-// **A whole refusal is raised too**, with the node-engine's words: what the workstation's report said before the
-// node-engine applied the rest.
-func TestARefusalThatGoesOnIsRaised(t *testing.T) {
-	now := time.Date(2026, 10, 4, 14, 0, 0, 0, time.UTC)
-	since := now.Add(-time.Hour)
-	f := calm(now)
-	f.doing = []inventory.Doing{{Node: "anchor", Outcome: inventory.OutcomeRefused, Since: &since, Times: 12,
-		Refused: "this is the arch host and pacman does not answer here", At: now.Add(-time.Minute)}}
-	got := watchApplyFailing(f)
-	if len(got) != 1 || !strings.Contains(got[0].Summary, "refused its declaration whole") ||
-		!strings.Contains(got[0].Said, "pacman does not answer") {
-		t.Fatalf("a refusal that went on for an hour was not raised with its words: %+v", got)
-	}
-}
-
-// **Judged by time while the machine is heard, not by how many reports said it** (review of novox/hq issue 233):
-// a node-engine says the same failure once, so one report an apply interval old is a fault that goes on; one
-// younger is not yet; and a silent or sleeping machine is S1's.
-func TestOneReportOlderThanAnApplyIsRaisedAndAQuietMachineIsNot(t *testing.T) {
-	now := time.Date(2026, 10, 4, 14, 0, 0, 0, time.UTC)
-	f := calm(now)
-	f.doing = []inventory.Doing{unansweringPackageManager(now, 6*time.Minute, 1)}
-	if got := watchApplyFailing(f); len(got) != 1 {
-		t.Errorf("one report of a failure six minutes old was not raised: %+v", got)
-	}
-	f.doing = []inventory.Doing{unansweringPackageManager(now, 4*time.Minute, 1)}
-	if got := watchApplyFailing(f); len(got) != 0 {
-		t.Errorf("a failure four minutes old was raised before one apply could clear it: %+v", got)
-	}
-	f.doing = []inventory.Doing{unansweringPackageManager(now, time.Hour, 1)}
-	f.machines[0].lastHeard = now.Add(-time.Hour)
-	if got := watchApplyFailing(f); len(got) != 0 {
-		t.Errorf("a silent machine was raised for its last report: %+v", got)
-	}
-	f = calm(now)
-	f.doing = []inventory.Doing{unansweringPackageManager(now, time.Hour, 1)}
-	f.doing[0].Node = "a-machine-the-mesh-does-not-know"
-	if got := watchApplyFailing(f); len(got) != 0 {
-		t.Errorf("a machine not heard of was raised: %+v", got)
-	}
-}
-
-// **A failed re-apply followed by a clean one clears S21** (review of novox/hq issue 233): the node-engine says
-// the clean re-apply, the store keeps it as applied with no failure since, and the condition the failure raised
-// is cleared through the keeper on the next tick.
-func TestACleanReapplyAfterAFailedOneClearsTheCondition(t *testing.T) {
-	now := time.Date(2026, 10, 4, 14, 0, 0, 0, time.UTC)
-	store := conditions.NewInMemory()
-	k := conditions.NewKeeper(t.Context(), conditions.Options{Store: store, History: store,
-		Teller: &conditions.Told{}, Now: func() time.Time { return now }})
-	defer k.Close(context.Background())
-	w := &watchdogs{keeper: k, started: now.Add(-time.Hour)}
-
-	failing := calm(now)
-	failing.doing = []inventory.Doing{unansweringPackageManager(now, 20*time.Minute, 1)}
-	w.see(t.Context(), failing)
-	open, err := k.Open(t.Context())
-	if err != nil || len(open) != 1 || open[0].Kind != kindApplyFailing {
-		t.Fatalf("the failed re-apply raised %+v (%v), want apply-failing", open, err)
-	}
-
-	clean := calm(now.Add(5 * time.Minute))
-	clean.doing = nil // the clean re-apply recorded: NotDoingWhatTheyWereTold no longer lists the machine
-	w.see(t.Context(), clean)
-	if open, _ := k.Open(t.Context()); len(open) != 0 {
-		t.Fatalf("the condition stayed open after the clean re-apply: %+v", open)
-	}
-}

cmd/mesh-controller/asker.go

@@ -1,946 +0,0 @@
-package main
-
-// The controller asks, and acts on the operator's warrant (novox/hq ADR 0259 §6). It holds no channel, no
-// identity and no factor: it asks the router like any other module, and performs the answer chosen with its
-// own grant.
-//
-//   - **For every open, unsilenced condition that needs the operator and names its answers**, one ask is
-//     published on the `operator-channel` seat under the controller's own name: the condition's words, its
-//     actions as options at their levels (Silence acknowledges; Release, Stop, Start and Restart approve),
-//     answered by the operator, expiring after a day (a week when every option only acknowledges). A
-//     condition that clears, is silenced, or changes its answers has its ask cancelled; an ask that expired
-//     unanswered is asked again while the condition lasts; one the router refused is asked again after a wait
-//     that grows with each refusal in a row, at most half an hour, so a refusal is never believed longer. Each ask is kept in the controller's bucket
-//     `asked`, so a restart neither asks twice nor forgets.
-//   - **On a warrant**, heard on the seat's event under the controller's own name (which only the router may
-//     say), the controller acts once per ask: only for an ask it holds, only for the option it offered at
-//     that option's level, and only while the condition is still open. It performs the action as itself —
-//     a silence through its own conditions, any other through the verb the action names — with the warrant's
-//     words as its why, and records it in the hand-act log as the operator's decision, naming the channel,
-//     the ask and the proofs. An ask that ended without a choice is recorded and nothing is done.
-//   - **A warrant it missed** while away is read from the router's record of its asks, under its own name.
-
-import (
-	"context"
-	"crypto/rand"
-	"encoding/hex"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"sort"
-	"strings"
-	"sync"
-	"time"
-
-	"git.novox.be/novox/mesh-sdk/go/asks"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The asker's name on the seat: the controller's module.
-const askerName = broker.ControllerSeat
-
-// How long an ask lasts: a day when an answer approves, a week when every answer only acknowledges.
-const (
-	// askApproveFor is a day less a margin, so an ask is never refused at the router for lasting a day and
-	// a moment (the SDK's bound is a day).
-	askApproveFor     = 24*time.Hour - 10*time.Minute
-	askAcknowledgeFor = 7 * 24 * time.Hour
-	// askEvery is how often what is open is asked about again, beside every change.
-	askEvery = time.Minute
-	// askCatchUpAfter is how old an open ask is before the router's record of it is read: a warrant heard
-	// on the event needs no reading.
-	askCatchUpAfter = 2 * time.Minute
-	// askAgainAfterAnswer is how long a condition the operator answered is not asked about again with the
-	// same answers: what was chosen takes a while to clear it, and asking again at once would ask twice.
-	askAgainAfterAnswer = time.Hour
-	// askMostOpen is how many asks the controller holds open at once (the router refuses a fourth): the
-	// most urgent conditions first, then the oldest.
-	askMostOpen = asks.MostOpen
-	// askRefusedRetryMost is the longest a refusal is believed without asking again (novox/hq issue 369): the
-	// router refused while its channels had not yet said they could send, the channels could send twenty
-	// minutes later, and the controller repeated that refusal for eleven hours. A refused ask is asked again
-	// after askEvery, then twice as long after each refusal in a row, never longer than this — and at once when
-	// the channels change.
-	askRefusedRetryMost = 30 * time.Minute
-	// askRefusedCounted is how far back refusals in a row are counted for that wait.
-	askRefusedCounted = 6 * time.Hour
-	// askVerdictWait is how long an ask made again after a refusal waits for the router's word before it is
-	// taken as taken: the router refuses an ask as it reads it, so a refusal comes within seconds. Meanwhile
-	// the condition saying it was not delivered stands as it was, neither cleared nor raised again.
-	askVerdictWait = 2 * time.Minute
-)
-
-// refusedRetryAfter is how long a part refused n times in a row waits before it is asked again.
-func refusedRetryAfter(n int) time.Duration {
-	wait := askEvery
-	for i := 1; i < n && wait < askRefusedRetryMost; i++ {
-		wait *= 2
-	}
-	return min(wait, askRefusedRetryMost)
-}
-
-// What became of an ask, as the controller keeps it.
-const (
-	askOpen      = "open"
-	askCancelled = "cancelled"
-)
-
-// asked is one ask the controller made, as it keeps it.
-type asked struct {
-	ID        string `json:"id"`
-	Condition string `json:"condition"`
-	// Channels is what the channels were when it was asked (asker.channels): an ask the router refused is asked
-	// again at once when the condition's answers or the channels change, and otherwise after a wait that grows
-	// with each refusal in a row (refusedRetryAfter, novox/hq issue 369).
-	Channels string              `json:"channels,omitempty"`
-	Ask      asks.Ask            `json:"ask"`
-	Actions  []conditions.Action `json:"actions"`
-	// Options are the actions by option id.
-	Options map[string]int `json:"options"`
-	State   string         `json:"state"`
-	Opened  time.Time      `json:"opened"`
-	Ended   time.Time      `json:"ended,omitempty"`
-	Warrant *asks.Warrant  `json:"warrant,omitempty"`
-	// Acted is what the controller did on the warrant: empty before it did anything, "acting" while it acts,
-	// then "done", "failed: …" or "nothing: …". Anything but empty is never acted on again.
-	Acted string `json:"acted,omitempty"`
-	// Part is which ask of its condition this is (askPart): empty for the one that carries the condition's
-	// answers, or the authorising ones where it has both; "acknowledge" for its acknowledging answers asked
-	// apart (the review of 2026-10-09, M1).
-	Part string `json:"part,omitempty"`
-	// Rehearsal is an ask started at the controller's terminal (rehearse.go): about no condition, its answers
-	// perform nothing, and the reconciling of conditions leaves it alone.
-	Rehearsal bool `json:"rehearsal,omitempty"`
-	// Proposal is a settings layer proposed through a verb (proposals.go, novox/hq ADR 0277): about no
-	// condition, set on Approve by the serving controller itself, and left alone by the reconciling of conditions.
-	Proposal *settingsProposal `json:"proposal,omitempty"`
-}
-
-// ofACondition says an ask is one of a condition's: not a rehearsal, not a proposal.
-func (r asked) ofACondition() bool { return !r.Rehearsal && r.Proposal == nil }
-
-// partKey is an ask's place among what is asked: its condition and its part.
-func partKey(condition, part string) string { return condition + "#" + part }
-
-// partAcknowledge is the part of a condition asked apart for its acknowledging answers.
-const partAcknowledge = "acknowledge"
-
-// askPart is one ask a condition is asked with: its part, what it is about, and its answers.
-type askPart struct {
-	name    string
-	about   string
-	actions []conditions.Action
-}
-
-// levelOf is an action's level as an option offers it: one that says none is never taken for less than
-// approve.
-func levelOf(act conditions.Action) asks.Level {
-	if act.Level == "" {
-		return asks.Approve
-	}
-	return asks.Level(act.Level)
-}
-
-// partsOf is the asks a condition is asked with (the review of 2026-10-09, M1): one, when its answers are all
-// of one kind; else its authorising answers (Release, Stop, Restart) in one ask, about the condition, and its
-// acknowledging ones (Silence) in another. **An acknowledgement never shares an ask with an approval**: a
-// channel that only acknowledges would otherwise answer the ask, and end the approval with it.
-func partsOf(c conditions.Condition) []askPart {
-	var ack, auth []conditions.Action
-	for _, act := range c.Actions {
-		if levelOf(act) == asks.Acknowledge {
-			ack = append(ack, act)
-		} else {
-			auth = append(auth, act)
-		}
-	}
-	if len(ack) == 0 || len(auth) == 0 {
-		return []askPart{{about: c.Key, actions: c.Actions}}
-	}
-	return []askPart{{about: c.Key, actions: auth},
-		{name: partAcknowledge, about: c.Key + "." + partAcknowledge, actions: ack}}
-}
-
-// askedStore keeps the asks (broker.AskedBucket). **Every write after the first is a compare-and-set** (the
-// review of 2026-10-09, L2): an ask is created once, and changed only over the revision it was read at, the
-// change decided again on what is read — so two controllers, or two deliveries of one warrant, never write
-// over each other, and of two that would act only the one whose write stands does.
-type askedStore interface {
-	Get(ctx context.Context, id string) (*asked, error)
-	// Create keeps a new ask, and refuses one already kept under its id.
-	Create(ctx context.Context, a asked) error
-	// Change applies change to the ask kept under id, by compare-and-set, and says whether its write stood.
-	// change says whether to write at all; on a write that came between, it is asked again on what is read.
-	Change(ctx context.Context, id string, change func(*asked) bool) (bool, error)
-	All(ctx context.Context) ([]asked, error)
-}
-
-// askChangeTries is how often a change is read and tried again when another write came between.
-const askChangeTries = 5
-
-// asker is the controller asking the operator and acting on the answer.
-type asker struct {
-	open    func(ctx context.Context) ([]conditions.Condition, error)
-	silence func(ctx context.Context, key string, d time.Duration, by, why string) error
-	store   askedStore
-	// publish puts a message on a subject's stream, de-duplicated by id.
-	publish func(ctx context.Context, subject string, body []byte, id string) error
-	// call performs an action's verb with its arguments, as the controller.
-	call func(ctx context.Context, a conditions.Action, args map[string]string) error
-	// setLayer sets a proposed settings layer on the operator's warrant (novox/hq ADR 0277); nil cannot.
-	setLayer setOnWarrant
-	// record writes the hand-act log.
-	record func(ctx context.Context, act link.HandAct) error
-	// routerRecord reads the router's record of an ask for a warrant missed; nil reads nothing.
-	routerRecord func(ctx context.Context, id string) (*asks.Warrant, error)
-	// routerHere says whether a router holds the seat and takes asks under the asker's name; nil is yes.
-	routerHere func(ctx context.Context) (bool, error)
-	// grantHeld says whether the bus holds the controller's grant to ask: the user list the bus's machine was
-	// last sent is the one the mesh composes now (novox/hq issue 353). The grant is composed from the router's
-	// assignment and reaches the bus only when that machine is next pushed, so between `assign` and `push`
-	// the record says a router is here and the bus refuses every ask. why says what to do; nil is yes.
-	grantHeld func(ctx context.Context) (held bool, why string, err error)
-	// channels is what the channels are now, as a fingerprint: who holds which kind, promising what.
-	channels func(ctx context.Context) string
-	// raise keeps the asker's own condition (sourceAsker): which conditions needing the operator could not be
-	// asked, and why. Nil raises nothing (a test that does not look).
-	raise func(ctx context.Context, obs []conditions.Observation) error
-	now   func() time.Time
-	logf  func(string, ...any)
-
-	saidNoRouter bool
-	saidNoGrant  bool
-	// saidGrantCaveat is whether a grant held with a caveat was said, so it is said once.
-	saidGrantCaveat bool
-
-	mu     sync.Mutex
-	nudged chan struct{}
-}
-
-func (a *asker) nudge() {
-	if a == nil {
-		return
-	}
-	a.mu.Lock()
-	if a.nudged == nil {
-		a.nudged = make(chan struct{}, 1)
-	}
-	ch := a.nudged
-	a.mu.Unlock()
-	select {
-	case ch <- struct{}{}:
-	default:
-	}
-}
-
-// keep asks until ctx ends: now, on every change of a condition, and every askEvery.
-func (a *asker) keep(ctx context.Context) {
-	a.nudge()
-	tick := time.NewTicker(askEvery)
-	defer tick.Stop()
-	a.mu.Lock()
-	nudged := a.nudged
-	a.mu.Unlock()
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-tick.C:
-		case <-nudged:
-		}
-		if err := a.reconcile(ctx); err != nil {
-			a.logf("what the operator is asked could not be brought up to date: %v", err)
-		}
-	}
-}
-
-// wants says whether a condition is one to ask about now.
-func wants(c conditions.Condition, now time.Time) bool {
-	return len(c.Actions) > 0 && c.Needs != "" && !c.SilencedAt(now)
-}
-
-func sameAsked(a []conditions.Action, b []conditions.Action) bool {
-	x, _ := json.Marshal(a)
-	y, _ := json.Marshal(b)
-	return string(x) == string(y)
-}
-
-// reconcile brings what is asked in line with what is open.
-func (a *asker) reconcile(ctx context.Context) error {
-	now := a.now()
-	if a.routerHere != nil {
-		here, err := a.routerHere(ctx)
-		if err != nil {
-			return err
-		}
-		if !here {
-			if !a.saidNoRouter {
-				a.logf("no router takes asks under the controller's name (a module declaring %s with its ask "+
-					"named by its caller, assigned): the operator is asked nothing until one is", broker.AsksSeat)
-				a.saidNoRouter = true
-			}
-			open, err := a.open(ctx)
-			if err != nil {
-				return err
-			}
-			var unasked []conditions.Condition
-			for _, c := range open {
-				if wants(c, now) {
-					unasked = append(unasked, c)
-				}
-			}
-			return a.sayUnasked(ctx, unasked, "no router takes the controller's asks: no module holding "+
-				broker.AsksSeat+" that takes an ask under its asker's name is assigned")
-		}
-		a.saidNoRouter = false
-	}
-	if a.grantHeld != nil {
-		held, why, err := a.grantHeld(ctx)
-		if err != nil {
-			return err
-		}
-		if !held {
-			if !a.saidNoGrant {
-				a.logf("the bus does not hold the controller's grant to ask yet: %s; the operator is asked nothing until it does", why)
-				a.saidNoGrant = true
-			}
-			open, err := a.open(ctx)
-			if err != nil {
-				return err
-			}
-			var unasked []conditions.Condition
-			for _, c := range open {
-				if wants(c, now) {
-					unasked = append(unasked, c)
-				}
-			}
-			return a.sayUnasked(ctx, unasked, "the bus does not hold the controller's grant to ask yet: "+why)
-		}
-		if why != "" && !a.saidGrantCaveat {
-			// Held, with a caveat worth one line (an older bus module cannot confirm the reload).
-			a.logf("the controller asks: %s", why)
-			a.saidGrantCaveat = true
-		} else if why == "" {
-			a.saidGrantCaveat = false
-		}
-		a.saidNoGrant = false
-	}
-	channels := ""
-	if a.channels != nil {
-		channels = a.channels(ctx)
-	}
-	open, err := a.open(ctx)
-	if err != nil {
-		return err
-	}
-	all, err := a.store.All(ctx)
-	if err != nil {
-		return err
-	}
-	byCondition := map[string]asked{} // by partKey
-	// What is open and not a condition's — a rehearsal, a proposal — still counts toward what the router holds
-	// open for the controller (askMostOpen); expired unanswered, it is kept so, as the router says it too.
-	otherOpen := 0
-	for _, r := range all {
-		if r.State == askOpen && !r.ofACondition() && !now.Before(r.Ask.Expires) {
-			if _, err := a.store.Change(ctx, r.ID, func(x *asked) bool {
-				if x.State != askOpen || x.Acted != "" {
-					return false
-				}
-				x.State, x.Ended, x.Acted = string(asks.OutcomeExpired), now, "nothing: the ask expired unanswered"
-				return true
-			}); err != nil {
-				return err
-			}
-			continue
-		}
-		if r.State == askOpen && !r.ofACondition() {
-			otherOpen++
-		}
-		if r.State == askOpen && r.ofACondition() {
-			k := partKey(r.Condition, r.Part)
-			if prior, held := byCondition[k]; !held || r.Opened.After(prior.Opened) {
-				byCondition[k] = r
-			}
-		}
-	}
-	// A warrant missed while away, read from the router's record: for a condition's ask, and for a proposal's or a
-	// rehearsal's alike.
-	if a.routerRecord != nil {
-		var lookedUp []asked
-		for _, r := range byCondition {
-			lookedUp = append(lookedUp, r)
-		}
-		for _, r := range all {
-			if r.State == askOpen && !r.ofACondition() {
-				lookedUp = append(lookedUp, r)
-			}
-		}
-		for _, r := range lookedUp {
-			if now.Sub(r.Opened) < askCatchUpAfter {
-				continue
-			}
-			if w, err := a.routerRecord(ctx, r.ID); err == nil && w != nil {
-				body, _ := json.Marshal(w)
-				if err := a.Decided(ctx, body); err != nil {
-					return err
-				}
-			}
-		}
-		if all, err = a.store.All(ctx); err != nil {
-			return err
-		}
-		byCondition = map[string]asked{}
-		for _, r := range all {
-			if r.State == askOpen && r.ofACondition() {
-				byCondition[partKey(r.Condition, r.Part)] = r
-			}
-		}
-	}
-	// What the operator answered lately, by condition: not asked again at once; and what the router refused,
-	// newest first: not asked again until the answers or the channels change.
-	answered, refused := map[string]asked{}, map[string]asked{}
-	for _, r := range all {
-		k := partKey(r.Condition, r.Part)
-		if r.State == string(asks.OutcomeChosen) && now.Sub(r.Ended) < askAgainAfterAnswer {
-			answered[k] = r
-		}
-		if r.State == string(asks.OutcomeRefused) {
-			if prior, has := refused[k]; !has || r.Opened.After(prior.Opened) {
-				refused[k] = r
-			}
-		}
-	}
-	// Refusals in a row, by part: those since the last ask that was not refused, within askRefusedCounted.
-	// superseded: a part asked since its last refusal, by an ask the router did not refuse — open, answered,
-	// expired or cancelled. Its refusal is history then, never said again (the review of PR 198: an answered
-	// retry brought the refusal back).
-	inRow, superseded := map[string]int{}, map[string]asked{}
-	for k, last := range refused {
-		for _, r := range all {
-			if partKey(r.Condition, r.Part) == k && r.State != string(asks.OutcomeRefused) && r.State != askUnsent &&
-				r.Opened.After(last.Opened) && r.Opened.After(superseded[k].Opened) {
-				superseded[k] = r
-			}
-		}
-		var since time.Time
-		for _, r := range all {
-			if partKey(r.Condition, r.Part) == k && r.State != string(asks.OutcomeRefused) && r.State != askUnsent &&
-				!r.Opened.After(last.Opened) && r.Opened.After(since) {
-				since = r.Opened
-			}
-		}
-		for _, r := range all {
-			if partKey(r.Condition, r.Part) == k && r.State == string(asks.OutcomeRefused) && r.Opened.After(since) &&
-				now.Sub(r.Opened) < askRefusedCounted {
-				inRow[k]++
-			}
-		}
-	}
-	wanted := map[string]bool{}
-	var unasked []conditions.Condition // refused by the router, and nothing it was refused for changed
-	var refusedWords []string
-	// The most urgent first, then the oldest: those are asked when no more than askMostOpen may be.
-	sort.SliceStable(open, func(i, j int) bool {
-		ui, uj := open[i].Severity == conditions.Urgent, open[j].Severity == conditions.Urgent
-		if ui != uj {
-			return ui
-		}
-		if !open[i].Raised.Equal(open[j].Raised) {
-			return open[i].Raised.Before(open[j].Raised)
-		}
-		return open[i].Key < open[j].Key
-	})
-	openNow := otherOpen
-	for _, c := range open {
-		if !wants(c, now) {
-			continue
-		}
-		for _, p := range partsOf(c) {
-			if r, held := byCondition[partKey(c.Key, p.name)]; held && sameAsked(r.Actions, p.actions) && now.Before(r.Ask.Expires) {
-				openNow++
-			}
-		}
-	}
-	for _, c := range open {
-		if !wants(c, now) {
-			continue
-		}
-		saidUnasked := false
-		for _, p := range partsOf(c) {
-			key := partKey(c.Key, p.name)
-			wanted[key] = true
-			if r, was := refused[key]; was && sameAsked(r.Actions, p.actions) {
-				cur, held := byCondition[key]
-				ended := r.Ended
-				if ended.IsZero() {
-					ended = r.Opened
-				}
-				later, asked := superseded[key]
-				waiting := !held && !asked && r.Channels == channels && now.Sub(ended) < refusedRetryAfter(inRow[key])
-				// Asked again now (the wait over), or lately and the router's word not in yet: said as it was until
-				// that word, so the condition neither clears nor is raised again at each try.
-				retrying := !held && !asked && !waiting
-				verdictDue := held && asked && later.ID == cur.ID && now.Sub(cur.Opened) < askVerdictWait
-				if waiting || retrying || verdictDue {
-					if !saidUnasked {
-						unasked, saidUnasked = append(unasked, c), true
-					}
-					if r.Warrant != nil && r.Warrant.Words != "" {
-						refusedWords = append(refusedWords, r.Warrant.Words)
-					}
-				}
-				if waiting {
-					continue // refused lately, and nothing it was refused for has changed: asked again after the wait
-				}
-			}
-			if r, done := answered[key]; done && sameAsked(r.Actions, p.actions) {
-				if _, held := byCondition[key]; !held {
-					continue
-				}
-			}
-			if r, held := byCondition[key]; held {
-				switch {
-				case !sameAsked(r.Actions, p.actions):
-					if err := a.cancel(ctx, r, "its answers changed"); err != nil {
-						return err
-					}
-				case !now.Before(r.Ask.Expires):
-					// Expired unanswered: the router says so too; asked again below while it lasts.
-					if _, err := a.store.Change(ctx, r.ID, func(x *asked) bool {
-						if x.State != askOpen {
-							return false
-						}
-						x.State, x.Ended = string(asks.OutcomeExpired), now
-						return true
-					}); err != nil {
-						return err
-					}
-					openNow--
-				default:
-					continue
-				}
-			}
-			if openNow >= askMostOpen {
-				continue // asked when one of the open ones ends, most urgent first
-			}
-			if err := a.ask(ctx, c, p, channels); err != nil {
-				a.logf("the operator could not be asked about %s: %v", c.Key, err)
-				continue
-			}
-			openNow++
-		}
-	}
-	stillOpen := map[string]conditions.Condition{}
-	for _, c := range open {
-		stillOpen[c.Key] = c
-	}
-	for key, r := range byCondition {
-		if wanted[key] {
-			continue
-		}
-		// **A silence never takes an approval back** (the confirmation review of 2026-10-09, M1). Silence is an
-		// acknowledgement — anyone at the desk may give it — so a condition silenced while its approval is asked
-		// keeps that ask open, unchanged, until it is answered on a channel that proves who answered, or expires.
-		// It is not asked again once it ends, while the silence lasts.
-		if c, open := stillOpen[r.Condition]; open && c.SilencedAt(now) && r.Ask.Highest() != asks.Acknowledge &&
-			now.Before(r.Ask.Expires) && keepsItsAnswers(c, r) {
-			continue
-		}
-		if err := a.cancel(ctx, r, "the condition ended, was silenced or needs nothing now"); err != nil {
-			return err
-		}
-	}
-	why := "the router refused the ask"
-	if len(refusedWords) > 0 {
-		why += ": " + refusedWords[0]
-	}
-	return a.sayUnasked(ctx, unasked, why)
-}
-
-// keepsItsAnswers says a condition still offers the answers an ask kept was asked with.
-func keepsItsAnswers(c conditions.Condition, r asked) bool {
-	for _, p := range partsOf(c) {
-		if partKey(c.Key, p.name) == partKey(r.Condition, r.Part) {
-			return sameAsked(r.Actions, p.actions)
-		}
-	}
-	return false
-}
-
-// sourceAsker raises the asker's own condition.
-const sourceAsker = "asker"
-
-// sayUnasked keeps the asker's one condition: while a condition that needs the operator could not be asked
-// on any channel, said loudly (failure must be loud), cleared when every one could be.
-func (a *asker) sayUnasked(ctx context.Context, unasked []conditions.Condition, why string) error {
-	if a.raise == nil {
-		return nil
-	}
-	var obs []conditions.Observation
-	if len(unasked) > 0 {
-		keys := make([]string, 0, len(unasked))
-		severity := conditions.Warning
-		for _, c := range unasked {
-			keys = append(keys, c.Key)
-			if c.Severity == conditions.Urgent {
-				severity = conditions.Urgent
-			}
-		}
-		sort.Strings(keys)
-		obs = append(obs, conditions.Observation{Scope: conditions.ScopeSeat, ID: broker.AsksSeat, Token: "unasked",
-			Kind: "asks-undelivered", Severity: severity, Source: sourceAsker,
-			Summary: fmt.Sprintf("%d condition(s) that need the operator could not be asked on any channel: %s; %s",
-				len(keys), strings.Join(keys, ", "), why),
-			Headline:    "Questions for you not delivered",
-			Explanation: "The mesh could not send you its questions on any channel.",
-			Needs:       "answer them from the mesh MCP server, and check why no channel carries them.",
-			Resolved:    "The mesh can ask you again"})
-	}
-	if err := a.raise(ctx, obs); err != nil {
-		a.logf("whether the operator could be asked could not be kept as a condition: %v", err)
-	}
-	return nil
-}
-
-// optionID is an action's label as an option's id: "Silence for a week" is silence-for-a-week.
-func optionID(label string) string {
-	var b strings.Builder
-	dash := false
-	for _, r := range strings.ToLower(label) {
-		switch {
-		case r >= 'a' && r <= 'z', r >= '0' && r <= '9':
-			b.WriteRune(r)
-			dash = false
-		case !dash && b.Len() > 0:
-			b.WriteByte('-')
-			dash = true
-		}
-	}
-	return strings.TrimSuffix(b.String(), "-")
-}
-
-// doesWords is what an action does, in the words an option says it with.
-func doesWords(act conditions.Action) string {
-	switch {
-	case act.Arguments["silence"] != "":
-		return "nothing more is said of it for a week"
-	case act.Verb == "mesh-delivery.release":
-		return "the delivery goes on"
-	case act.Verb == "mesh-delivery.stop":
-		return "the delivery ends"
-	case act.Verb == broker.ControllerSeat+".plans" && act.Arguments["go"] != "":
-		return "the delivery starts"
-	case act.Verb == broker.ControllerSeat+".plans" && act.Arguments["stop"] != "":
-		return "the delivery is stopped"
-	case strings.HasSuffix(act.Verb, ".restart"):
-		return "its service is restarted on " + act.Machine
-	}
-	return strings.ToLower(act.Label)
-}
-
-// askText is a condition's words as an ask says them: without where an answer is given when no channel can
-// give it (FromMeshMCPServer), since the ask is answered on a channel and the router says where else.
-func askText(s string) string {
-	for _, with := range []string{", " + FromMeshMCPServer, " " + FromMeshMCPServer} {
-		s = strings.ReplaceAll(s, with, ".")
-	}
-	return strings.ReplaceAll(s, "..", ".")
-}
-
-// askOf is the ask one part of a condition is asked with.
-func askOf(id string, c conditions.Condition, p askPart, now time.Time) (asks.Ask, map[string]int) {
-	q := asks.Ask{ID: id, Headline: c.Headline, Explanation: askText(c.Explanation), Who: asks.Operator,
-		OnExpiry: "nothing is done, and you are asked again while it lasts", About: p.about,
-		Urgent: c.Severity == conditions.Urgent}
-	options := map[string]int{}
-	approves := false
-	for i, act := range p.actions {
-		level := levelOf(act) // an action that says nothing of its level is never taken for less than approve
-		approves = approves || level != asks.Acknowledge
-		oid := optionID(act.Label)
-		options[oid] = i
-		// Every option binds the exact act it stands for (novox/hq ADR 0259 §6): the verb, the machine and
-		// every argument. The warrant then authorises that act and no other.
-		binds, _ := asks.ActDigest(boundAct(act))
-		q.Options = append(q.Options, asks.Option{ID: oid, Label: act.Label, Does: doesWords(act), Level: level,
-			Binds: binds})
-	}
-	q.Expires = now.Add(askAcknowledgeFor)
-	if approves {
-		q.Expires = now.Add(askApproveFor)
-	}
-	return q, options
-}
-
-// boundAct is what an option's Binds digests: the act exactly as the controller will perform it — its verb,
-// machine, level, and each argument as "arg.<name>" — and never its label or words.
-func boundAct(act conditions.Action) asks.Act {
-	out := asks.Act{"verb": act.Verb, "machine": act.Machine, "level": act.Level}
-	for k, v := range act.Arguments {
-		out["arg."+k] = v
-	}
-	return out
-}
-
-func newAskID() string {
-	var b [8]byte
-	_, _ = rand.Read(b[:])
-	return "c" + hex.EncodeToString(b[:])
-}
-
-// askUnsent is an ask kept and never published: asked again at the next look.
-const askUnsent = "unsent"
-
-// ask publishes one ask about a part of a condition, kept before it is published (the review of 2026-10-09,
-// L3): a warrant for it then always finds it, and one whose publishing failed is marked so and asked again.
-func (a *asker) ask(ctx context.Context, c conditions.Condition, p askPart, channels string) error {
-	now := a.now()
-	id := newAskID()
-	q, options := askOf(id, c, p, now)
-	if err := q.Check(now); err != nil {
-		return err
-	}
-	body, err := json.Marshal(q)
-	if err != nil {
-		return err
-	}
-	if err := a.store.Create(ctx, asked{ID: id, Condition: c.Key, Part: p.name, Ask: q, Actions: p.actions,
-		Options: options, State: askOpen, Opened: now, Channels: channels}); err != nil {
-		return fmt.Errorf("the ask could not be kept, so it was not asked: %w", err)
-	}
-	if err := a.publish(ctx, asks.AskSubject(askerName), body, "ask."+id); err != nil {
-		if _, cerr := a.store.Change(ctx, id, func(x *asked) bool {
-			if x.State != askOpen || x.Acted != "" {
-				return false
-			}
-			x.State, x.Ended, x.Acted = askUnsent, a.now(), "nothing: it could not be published: "+err.Error()
-			return true
-		}); cerr != nil {
-			a.logf("the ask %s could not be published, and could not be marked so: %v", id, cerr)
-		}
-		return err
-	}
-	a.logf("asked the operator about %s (%s): %d answer(s)", c.Key, id, len(q.Options))
-	return nil
-}
-
-// cancel takes an ask back: kept cancelled first, so a warrant that comes after is refused, then said to the
-// router; a cancel the router did not hear leaves the ask to expire there, and nothing is done on it here.
-func (a *asker) cancel(ctx context.Context, r asked, why string) error {
-	stood, err := a.store.Change(ctx, r.ID, func(x *asked) bool {
-		if x.State != askOpen {
-			return false
-		}
-		x.State, x.Ended = askCancelled, a.now()
-		return true
-	})
-	if err != nil || !stood {
-		return err
-	}
-	body, _ := json.Marshal(map[string]string{"id": r.ID})
-	if err := a.publish(ctx, asks.CancelSubject(askerName), body, "cancel."+r.ID); err != nil {
-		a.logf("the ask %s about %s is taken back here, and the router could not be told (%v): it expires there, "+
-			"and no answer to it is acted on", r.ID, r.Condition, err)
-		return nil
-	}
-	a.logf("took back the ask %s about %s: %s", r.ID, r.Condition, why)
-	return nil
-}
-
-// Decided takes the router's word on one of the controller's asks (link.Decider). An error is returned only
-// when what was decided could not be kept, so the word is held and heard again.
-func (a *asker) Decided(ctx context.Context, body []byte) error {
-	var w asks.Warrant
-	if err := json.Unmarshal(body, &w); err != nil {
-		a.logf("the router's word on an ask could not be read; ignored: %v", err)
-		return nil
-	}
-	if w.Asker != askerName {
-		a.logf("REFUSED a warrant for %s's ask %s: the controller acts only on its own", w.Asker, w.Ask)
-		return nil
-	}
-	r, err := a.store.Get(ctx, w.Ask)
-	if err != nil {
-		return err
-	}
-	if r == nil {
-		a.logf("REFUSED a warrant for the ask %s, which the controller does not hold", w.Ask)
-		return nil
-	}
-	if r.Acted != "" {
-		return nil // heard again: acted on once
-	}
-	now := a.now()
-	if w.Outcome != asks.OutcomeChosen {
-		acted := "nothing: the ask " + string(w.Outcome)
-		if w.Words != "" {
-			acted += ": " + w.Words
-		}
-		if _, err := a.store.Change(ctx, r.ID, func(x *asked) bool {
-			if x.Acted != "" {
-				return false
-			}
-			x.State, x.Ended, x.Warrant, x.Acted = string(w.Outcome), now, &w, acted
-			return true
-		}); err != nil {
-			return err
-		}
-		a.logf("the ask %s about %s ended %s; nothing is done", r.ID, r.Condition, w.Outcome)
-		return nil
-	}
-	if r.State != askOpen {
-		// Cancelled, replaced or expired in the controller's own record: no answer to it is acted on.
-		a.logf("REFUSED a warrant for the ask %s, which is %s in the controller's own record", r.ID, r.State)
-		return nil
-	}
-	option, err := w.For(askerName, r.Ask)
-	if err != nil {
-		a.logf("REFUSED a warrant for the ask %s: %v", r.ID, err)
-		return nil
-	}
-	index, offered := r.Options[option.ID]
-	if !offered || index >= len(r.Actions) {
-		a.logf("REFUSED a warrant for the ask %s: it chose %s, which no action stands for", r.ID, option.ID)
-		return nil
-	}
-	act := r.Actions[index]
-	// The act about to be performed is the one the option bound when the controller asked: a record changed
-	// since is refused, never performed.
-	if err := option.Performs(boundAct(act)); err != nil {
-		a.logf("REFUSED a warrant for the ask %s: %v", r.ID, err)
-		return nil
-	}
-	open, err := a.open(ctx)
-	if err != nil {
-		return err
-	}
-	stillOpen := r.Rehearsal || r.Proposal != nil // a rehearsal and a proposal are about no condition
-	for _, c := range open {
-		stillOpen = stillOpen || c.Key == r.Condition
-	}
-	if !stillOpen {
-		// The asker checks the state is still what it asked about before it acts (to-be 46 §10, step 7).
-		if _, err := a.store.Change(ctx, r.ID, func(x *asked) bool {
-			if x.State != askOpen || x.Acted != "" {
-				return false
-			}
-			x.State, x.Warrant, x.Ended, x.Acted = string(asks.OutcomeChosen), &w, now,
-				"nothing: the condition ended before the answer"
-			return true
-		}); err != nil {
-			return err
-		}
-		a.logf("%s, for %s, which ended meanwhile: nothing is done", w.Says(), r.Condition)
-		return nil
-	}
-	// Claimed before acting, by compare-and-set: only the delivery whose write stands acts (security review
-	// of 2026-10-08, finding 9). Not by the warrant's message id, which another publisher could take first:
-	// the controller's own record decides.
-	claimed, err := a.store.Change(ctx, r.ID, func(x *asked) bool {
-		if x.State != askOpen || x.Acted != "" {
-			return false
-		}
-		x.State, x.Warrant, x.Acted = string(asks.OutcomeChosen), &w, "acting"
-		return true
-	})
-	if err != nil {
-		return err
-	}
-	if !claimed {
-		a.logf("the warrant for the ask %s was already taken by another delivery; nothing more is done", r.ID)
-		return nil
-	}
-	r.Acted = "acting"
-
-	why := fmt.Sprintf("%s (ask %s)", w.Says(), r.ID)
-	args := map[string]string{}
-	for k, v := range act.Arguments {
-		args[k] = v
-	}
-	if v, takes := args["why"]; takes && v == "" {
-		args["why"] = why
-	}
-	var acted error
-	outcome := "done"
-	switch {
-	case r.Rehearsal && act.Verb == rehearsalVerb:
-		// A rehearsal's answer performs nothing: it is recorded below as the operator's decision.
-	case r.Proposal != nil && act.Verb == proposalVerb:
-		// A proposed settings layer, set by this controller itself on Approve (novox/hq ADR 0277): the act's
-		// digest of the values is held to the record's own values before anything is set.
-		outcome, acted = a.decideProposal(ctx, *r, act, w)
-		if acted == nil && outcome != "" && !strings.HasPrefix(outcome, "nothing") {
-			outcome = "done: " + outcome
-		}
-	case act.Arguments["silence"] != "":
-		acted = a.silence(ctx, act.Arguments["silence"], conditions.MaxSilence, byWords(w), why)
-	default:
-		acted = a.call(ctx, act, args)
-	}
-	ended := a.now()
-	if acted != nil {
-		outcome = "failed: " + acted.Error()
-	}
-	r.Ended, r.Acted = ended, outcome
-	if _, err := a.store.Change(ctx, r.ID, func(x *asked) bool {
-		if x.Acted != "acting" {
-			return false
-		}
-		x.Ended, x.Acted = ended, outcome
-		return true
-	}); err != nil {
-		a.logf("%s was acted on (%s), and how it ended could NOT be kept: %v", r.ID, outcome, err)
-	}
-	verbArgs := []string{act.Verb}
-	if act.Machine != "" {
-		verbArgs = append(verbArgs, "on "+act.Machine)
-	}
-	keys := make([]string, 0, len(args))
-	for k := range args {
-		keys = append(keys, k)
-	}
-	sort.Strings(keys)
-	for _, k := range keys {
-		if k != "why" {
-			verbArgs = append(verbArgs, k+"="+args[k])
-		}
-	}
-	if err := a.record(ctx, link.HandAct{Verb: handActWarrant, Args: verbArgs, Why: why, By: byWords(w),
-		Cause: conditions.CauseOperatorAnswer, Condition: r.Condition, Via: viaWords(w), Ask: r.ID,
-		Proofs: w.Proofs, RequestedBy: r.Condition, Outcome: r.Acted}); err != nil {
-		a.logf("%s was done, and could NOT be recorded in the hand-act log: %v", why, err)
-	}
-	a.logf("%s: %s", why, r.Acted)
-	return nil
-}
-
-// handActWarrant is the verb an act the operator chose on a warrant is recorded under: a person's decision,
-// never a repair (handActVerbs).
-const handActWarrant = "warrant"
-
-// byWords is who chose, as the hand-act log says it: "the operator, as telegram identity 42".
-func byWords(w asks.Warrant) string {
-	if w.By == nil {
-		return "the operator"
-	}
-	return fmt.Sprintf("the %s, as %s identity %s", w.By.Who, w.By.Kind, w.By.Identity)
-}
-
-// viaWords is the channel an answer came through: its module and kind, and how the sender was known.
-func viaWords(w asks.Warrant) string {
-	if w.By == nil {
-		return w.Channel
-	}
-	via := w.Channel + " (" + w.By.Kind + ")"
-	if w.By.Verified != "" {
-		via += ", " + w.By.Verified
-	}
-	return via
-}
-
-// errNotGranted is an action whose verb the controller's grant does not name.
-var errNotGranted = errors.New("the controller's grant does not name this verb")

cmd/mesh-controller/asker_bus_test.go

@@ -1,153 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/nats-io/nats.go"
-	"github.com/nats-io/nats.go/jetstream"
-
-	"git.novox.be/novox/mesh-sdk/go/asks"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/link"
-	"github.com/novox/mesh-controller/internal/testbus"
-)
-
-// busAsker is an asker on a real bus's `asked` bucket, counting what it performs: two of them are two
-// controllers sharing one record.
-type busAskerRig struct {
-	mu     sync.Mutex
-	called int
-	acts   int
-	open   []conditions.Condition
-	sent   [][]byte
-}
-
-func (rig *busAskerRig) asker(t *testing.T, conn *nats.Conn, now time.Time) *asker {
-	return &asker{
-		open: func(context.Context) ([]conditions.Condition, error) {
-			rig.mu.Lock()
-			defer rig.mu.Unlock()
-			return rig.open, nil
-		},
-		silence: func(context.Context, string, time.Duration, string, string) error { return nil },
-		store:   busAsked{conn: conn},
-		publish: func(_ context.Context, subject string, body []byte, _ string) error {
-			rig.mu.Lock()
-			defer rig.mu.Unlock()
-			if subject == asks.AskSubject(askerName) {
-				rig.sent = append(rig.sent, body)
-			}
-			return nil
-		},
-		call: func(context.Context, conditions.Action, map[string]string) error {
-			time.Sleep(20 * time.Millisecond) // long enough for the other delivery to arrive meanwhile
-			rig.mu.Lock()
-			defer rig.mu.Unlock()
-			rig.called++
-			return nil
-		},
-		record: func(context.Context, link.HandAct) error {
-			rig.mu.Lock()
-			defer rig.mu.Unlock()
-			rig.acts++
-			return nil
-		},
-		now:  func() time.Time { return now },
-		logf: t.Logf,
-	}
-}
-
-func askedBus(t *testing.T) *nats.Conn {
-	t.Helper()
-	conn, err := nats.Connect(testbus.URL(t))
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(conn.Close)
-	js, err := jetstream.New(conn)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if _, err := js.CreateKeyValue(context.Background(), jetstream.KeyValueConfig{Bucket: broker.AskedBucket}); err != nil {
-		t.Fatal(err)
-	}
-	return conn
-}
-
-// The review of 2026-10-09 (L7): two deliveries of one warrant, to two controllers at once, perform its act
-// exactly once and record it once — the record's compare-and-set decides, never the warrant's message id.
-func TestTwoAnswersAtOnceActOnce(t *testing.T) {
-	conn := askedBus(t)
-	now := time.Date(2026, 10, 9, 14, 0, 0, 0, time.UTC)
-	rig := &busAskerRig{open: []conditions.Condition{heldCondition()}}
-	first, second := rig.asker(t, conn, now), rig.asker(t, conn, now)
-	if err := first.reconcile(context.Background()); err != nil {
-		t.Fatal(err)
-	}
-	if len(rig.sent) != 1 {
-		t.Fatalf("asked %d times", len(rig.sent))
-	}
-	var q asks.Ask
-	_ = json.Unmarshal(rig.sent[0], &q)
-	release, _ := q.Option("release")
-	w := asks.Warrant{Ask: q.ID, Asker: askerName, About: q.About, Outcome: asks.OutcomeChosen, Option: release.ID,
-		Label: release.Label, Level: release.Level, Channel: "telegram", Proofs: []string{"P1"}, At: now,
-		AskDigest: q.Digest(), By: &asks.Person{Who: asks.Operator, Kind: "telegram", Identity: "42", Verified: "user id verified"}}
-	body, _ := json.Marshal(w)
-	var wg sync.WaitGroup
-	for _, a := range []*asker{first, second, first, second} {
-		wg.Add(1)
-		go func(a *asker) {
-			defer wg.Done()
-			if err := a.Decided(context.Background(), body); err != nil {
-				t.Error(err)
-			}
-		}(a)
-	}
-	wg.Wait()
-	if rig.called != 1 || rig.acts != 1 {
-		t.Fatalf("performed %d time(s), recorded %d time(s)", rig.called, rig.acts)
-	}
-	got, err := busAsked{conn: conn}.Get(context.Background(), q.ID)
-	if err != nil || got == nil || got.Acted != "done" {
-		t.Fatalf("kept as %+v (%v)", got, err)
-	}
-}
-
-// The review of 2026-10-09 (L2): a write decided on a record read earlier never lands over one made since. A
-// cancel read before the answer was acted on leaves the act's record as it is.
-func TestAStaleCancelDoesNotWriteOverAnAct(t *testing.T) {
-	conn := askedBus(t)
-	now := time.Date(2026, 10, 9, 14, 0, 0, 0, time.UTC)
-	rig := &busAskerRig{open: []conditions.Condition{heldCondition()}}
-	a := rig.asker(t, conn, now)
-	if err := a.reconcile(context.Background()); err != nil {
-		t.Fatal(err)
-	}
-	var q asks.Ask
-	_ = json.Unmarshal(rig.sent[0], &q)
-	stale, _ := busAsked{conn: conn}.Get(context.Background(), q.ID)
-	release, _ := q.Option("release")
-	w := asks.Warrant{Ask: q.ID, Asker: askerName, About: q.About, Outcome: asks.OutcomeChosen, Option: release.ID,
-		Label: release.Label, Level: release.Level, Channel: "telegram", At: now, AskDigest: q.Digest(),
-		By: &asks.Person{Who: asks.Operator, Kind: "telegram", Identity: "42", Verified: "user id verified"}}
-	body, _ := json.Marshal(w)
-	if err := a.Decided(context.Background(), body); err != nil {
-		t.Fatal(err)
-	}
-	if err := a.cancel(context.Background(), *stale, "the condition ended"); err != nil {
-		t.Fatal(err)
-	}
-	got, _ := busAsked{conn: conn}.Get(context.Background(), q.ID)
-	if got.State != string(asks.OutcomeChosen) || got.Acted != "done" {
-		t.Errorf("a stale cancel wrote over the act: %+v", got)
-	}
-}

cmd/mesh-controller/asker_wire.go

@@ -1,589 +0,0 @@
-package main
-
-// The asker on the bus: its asks in the controller's bucket `asked`, its asks and cancels published on the
-// seat under the controller's name, the verbs a warrant chooses called with the controller's grant, and the
-// router's record of its asks read under its name (novox/hq ADR 0259).
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"sort"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/nats-io/nats.go"
-	"github.com/nats-io/nats.go/jetstream"
-
-	"git.novox.be/novox/mesh-sdk/go/asks"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// askerFrom is the serving controller's asker; nil in any other process.
-var askerFrom *asker
-
-// askWithin is how long a verb a warrant chose is given to answer.
-const askWithin = time.Minute
-
-type busAsked struct{ conn *nats.Conn }
-
-func (b busAsked) kv(ctx context.Context) (jetstream.KeyValue, error) {
-	js, err := jetstream.New(b.conn)
-	if err != nil {
-		return nil, err
-	}
-	return js.KeyValue(ctx, broker.AskedBucket)
-}
-
-func (b busAsked) Get(ctx context.Context, id string) (*asked, error) {
-	kv, err := b.kv(ctx)
-	if err != nil {
-		return nil, err
-	}
-	e, err := kv.Get(ctx, id)
-	if errors.Is(err, jetstream.ErrKeyNotFound) {
-		return nil, nil
-	}
-	if err != nil {
-		return nil, err
-	}
-	var r asked
-	return &r, json.Unmarshal(e.Value(), &r)
-}
-
-// Create keeps a new ask under its id, and only where none is kept: never over another.
-func (b busAsked) Create(ctx context.Context, r asked) error {
-	kv, err := b.kv(ctx)
-	if err != nil {
-		return err
-	}
-	body, err := json.Marshal(r)
-	if err != nil {
-		return err
-	}
-	_, err = kv.Create(ctx, r.ID, body)
-	return err
-}
-
-// Change applies change to the ask kept under id by compare-and-set on its key's revision (the review of
-// 2026-10-09, L2): read, changed, and written only over the revision read; when another write came between,
-// read again and asked again, at most askChangeTries times. change says whether to write at all.
-func (b busAsked) Change(ctx context.Context, id string, change func(*asked) bool) (bool, error) {
-	kv, err := b.kv(ctx)
-	if err != nil {
-		return false, err
-	}
-	for try := 0; try < askChangeTries; try++ {
-		e, err := kv.Get(ctx, id)
-		if errors.Is(err, jetstream.ErrKeyNotFound) {
-			return false, nil
-		}
-		if err != nil {
-			return false, err
-		}
-		var r asked
-		if err := json.Unmarshal(e.Value(), &r); err != nil {
-			return false, err
-		}
-		if !change(&r) {
-			return false, nil
-		}
-		body, err := json.Marshal(r)
-		if err != nil {
-			return false, err
-		}
-		if _, err := kv.Update(ctx, id, body, e.Revision()); err != nil {
-			var api *jetstream.APIError
-			if errors.Is(err, jetstream.ErrKeyExists) || (errors.As(err, &api) && api.ErrorCode == jetstream.JSErrCodeStreamWrongLastSequence) {
-				continue
-			}
-			return false, err
-		}
-		return true, nil
-	}
-	return false, fmt.Errorf("the ask %s changed under every one of %d tries", id, askChangeTries)
-}
-
-func (b busAsked) All(ctx context.Context) ([]asked, error) {
-	kv, err := b.kv(ctx)
-	if err != nil {
-		return nil, err
-	}
-	lister, err := kv.ListKeys(ctx)
-	if err != nil {
-		return nil, err
-	}
-	defer func() { _ = lister.Stop() }()
-	var out []asked
-	for k := range lister.Keys() {
-		e, err := kv.Get(ctx, k)
-		if err != nil {
-			continue
-		}
-		var r asked
-		if json.Unmarshal(e.Value(), &r) == nil {
-			out = append(out, r)
-		}
-	}
-	return out, nil
-}
-
-// callAction performs an action's verb as the controller, through the grant that names it.
-func callAction(conn *nats.Conn) func(ctx context.Context, a conditions.Action, args map[string]string) error {
-	return func(ctx context.Context, a conditions.Action, args map[string]string) error {
-		seat, verb, ok := strings.Cut(a.Verb, ".")
-		if !ok {
-			return fmt.Errorf("%q names no seat and verb", a.Verb)
-		}
-		body := map[string]any{}
-		for k, v := range args {
-			body[k] = v
-		}
-		if seat == catalogue.DeliverySeat {
-			_, err := askDeliveryOwner(ctx, conn, verb, body)
-			return err
-		}
-		granted := false
-		for _, v := range broker.VerbsTheControllerActsOnAWarrant {
-			granted = granted || (v.Seat == seat && v.Verb == verb)
-		}
-		if !granted {
-			return fmt.Errorf("%s: %w", a.Verb, errNotGranted)
-		}
-		var answer link.Answer
-		var err error
-		if a.Machine != "" {
-			answer, err = link.AskSeatTool(ctx, conn, seat, verb, a.Machine, body, askWithin)
-		} else {
-			answer, err = link.AskMeshSeatTool(ctx, conn, seat, verb, body, askWithin)
-		}
-		if err != nil {
-			return err
-		}
-		if answer.Error != "" {
-			return fmt.Errorf("%s refused: %s", a.Verb, answer.Error)
-		}
-		return nil
-	}
-}
-
-// routerRecordOf reads the router's record of one of the controller's asks, under its name, and answers
-// how it ended when it did: the bucket is the one the asks seat's declarer names as its records.
-func routerRecordOf(conn *nats.Conn, inv *inventory.Inventory) func(ctx context.Context, id string) (*asks.Warrant, error) {
-	return func(ctx context.Context, id string) (*asks.Warrant, error) {
-		bucket, err := asksRecords(ctx, inv)
-		if err != nil || bucket == "" {
-			return nil, err
-		}
-		reply, err := conn.RequestWithContext(ctx, "$JS.API.DIRECT.GET.KV_"+bucket+".$KV."+bucket+"."+askerName+"."+id, nil)
-		if err != nil {
-			return nil, err
-		}
-		if reply.Header.Get("Status") != "" {
-			return nil, nil // none, or not readable: the event says it
-		}
-		var rec struct {
-			State   string        `json:"state"`
-			Warrant *asks.Warrant `json:"warrant"`
-		}
-		if json.Unmarshal(reply.Data, &rec) != nil || rec.State == "open" || rec.Warrant == nil {
-			return nil, nil
-		}
-		return rec.Warrant, nil
-	}
-}
-
-// asksRecords is the bucket the asks seat's declarer keeps its record of asks in.
-func asksRecords(ctx context.Context, inv *inventory.Inventory) (string, error) {
-	declared, err := inv.Catalogue(ctx)
-	if err != nil {
-		return "", err
-	}
-	for _, m := range declared {
-		for _, s := range m.DefinesSeats {
-			if s.Name == broker.AsksSeat && len(s.Records) > 0 {
-				return broker.BucketName(m.Module, s.Records[0]), nil
-			}
-		}
-	}
-	return "", nil
-}
-
-// routerHereIn says whether a module declaring the asks seat, with its ask named by its caller, is assigned:
-// without it nothing takes an ask, and asking would only fill a queue nobody reads.
-func routerHereIn(inv *inventory.Inventory) func(ctx context.Context) (bool, error) {
-	return func(ctx context.Context) (bool, error) {
-		entries, err := inv.Catalogued(ctx)
-		if err != nil {
-			return false, err
-		}
-		for _, e := range entries {
-			for _, s := range e.Manifest.DefinesSeats {
-				if s.Name == broker.AsksSeat && s.NamedByCaller("ask") && len(e.On) > 0 {
-					return true, nil
-				}
-			}
-		}
-		return false, nil
-	}
-}
-
-// grantHeldIn says whether the bus holds the controller's grant to ask (novox/hq issue 353), judged on the two
-// facts that make it so, and failing closed on each:
-//
-//  1. **composed**: the user list the mesh composes now grants the controller itself to publish its ask
-//     (controllerMayAsk) — the controller's own grant, not whether any user of the list changed;
-//  2. **in force**: the bus's own module, on the machine holding the bus, says the user list there allows it
-//     and the server reloaded after that list was written (the nats module's `nats_user_can`, `in_force`) — a
-//     list sent is not a list the bus enforces until it reloads.
-//
-// Anything that cannot be worked out is not held, with why, so the conditions that need the operator are said
-// as undelivered rather than asked into a refusal.
-func grantHeldIn(open *stores, conn *nats.Conn) func(ctx context.Context) (bool, string, error) {
-	return grantHeldBy(composedGrantIn(open), busGrantIn(open, conn), time.Now)
-}
-
-// grantJudge is one of the two facts: whether it holds, and why not.
-type grantJudge func(ctx context.Context) (bool, string, error)
-
-// grantHeldBy is the judgement over the two facts, remembered for grantLookEvery: composing the list resolves
-// the bus's machine whole, and asking the bus's module is a call.
-func grantHeldBy(composed, inForce grantJudge, now func() time.Time) func(ctx context.Context) (bool, string, error) {
-	var mu sync.Mutex
-	var at time.Time
-	var held bool
-	var why string
-	return func(ctx context.Context) (bool, string, error) {
-		mu.Lock()
-		defer mu.Unlock()
-		if !at.IsZero() && now().Sub(at) < grantLookEvery {
-			return held, why, nil
-		}
-		held, why = judgeGrant(ctx, composed, inForce)
-		at = now()
-		return held, why, nil
-	}
-}
-
-// judgeGrant is held only when both facts hold; an error is a fact not known, never a yes. A fact that holds
-// with a caveat (a reload not confirmed) gives that caveat as the why of a yes.
-func judgeGrant(ctx context.Context, composed, inForce grantJudge) (bool, string) {
-	var caveat []string
-	for _, fact := range []struct {
-		judge grantJudge
-		what  string
-	}{{composed, "whether the mesh composes the controller a grant to ask"}, {inForce, "whether the bus enforces it"}} {
-		if fact.judge == nil {
-			return false, fact.what + " is not judged here"
-		}
-		ok, why, err := fact.judge(ctx)
-		if err != nil {
-			return false, fact.what + " could not be worked out: " + err.Error()
-		}
-		if !ok {
-			return false, why
-		}
-		if why != "" {
-			caveat = append(caveat, why)
-		}
-	}
-	return true, strings.Join(caveat, "; ")
-}
-
-// controllerMayAsk says whether the controller's own grant, as composed from these records, lets it publish its
-// ask (ADR 0259 §3: composed while a router that takes asks under its asker's name is assigned).
-func controllerMayAsk(records broker.Records) (bool, error) {
-	users, err := broker.Users(records)
-	if err != nil {
-		return false, err
-	}
-	for _, u := range users {
-		if u.Kind != broker.KindController {
-			continue
-		}
-		perms, err := broker.PermissionsFor(u)
-		if err != nil {
-			return false, err
-		}
-		return broker.MayPublish(perms, asks.AskSubject(askerName)), nil
-	}
-	return false, errors.New("the composition holds no controller")
-}
-
-// composedGrantIn is the first fact, from the mesh's records.
-func composedGrantIn(open *stores) grantJudge {
-	return func(ctx context.Context) (bool, string, error) {
-		if open == nil || open.inventory == nil {
-			return false, "", errors.New("the mesh's records are not open")
-		}
-		records, err := open.inventory.BusRecords(ctx)
-		if err != nil {
-			return false, "", err
-		}
-		may, err := controllerMayAsk(records)
-		if err != nil || may {
-			return may, "", err
-		}
-		return false, "the mesh composes the controller no grant to ask: no router that takes asks under its " +
-			"asker's name is assigned", nil
-	}
-}
-
-// busGrantIn is the second fact, asked of the bus's own module on the machine holding the bus, with the check
-// main made before it (novox/hq issue 353, PR 186: is the user list sent to the bus's machine the one composed
-// now) kept for the cases the module's word does not settle.
-func busGrantIn(open *stores, conn *nats.Conn) grantJudge {
-	ask := func(ctx context.Context) (string, json.RawMessage, error) {
-		if open == nil || open.inventory == nil || conn == nil {
-			return "", nil, errors.New("the mesh's records or the bus are not open")
-		}
-		holders, err := seatHolders(ctx, open.inventory)
-		if err != nil {
-			return "", nil, err
-		}
-		h, held := holders[theBrokerSeat]
-		if !held || h.Node == "" || h.Module == "" {
-			return "", nil, nil
-		}
-		a, err := link.AskModuleToolOn(ctx, conn, h.Module, busUserCanTool, h.Node, map[string]any{
-			"user": broker.ControllerName, "action": "publish", "subject": asks.AskSubject(askerName)}, 15*time.Second)
-		if err != nil {
-			return h.Node, nil, err
-		}
-		if a.Error != "" {
-			return h.Node, nil, errors.New(a.Error)
-		}
-		return h.Node, a.Result, nil
-	}
-	list := func(ctx context.Context) (busListState, error) {
-		if open == nil || open.inventory == nil {
-			return busListState{}, errors.New("the mesh's records are not open")
-		}
-		s, err := brokerListState(ctx, open, nil)
-		if err != nil || s.Machine == "" || !s.Behind {
-			return s, err
-		}
-		step, err := busHeld(ctx, open.inventory, []string{s.Machine})
-		if err != nil {
-			return busListState{}, err
-		}
-		s.BusStep = step[s.Machine]
-		return s, nil
-	}
-	return busGrantBy(ask, list)
-}
-
-// busListState is the user list on the bus's machine as the controller's record knows it: whether the list
-// sent there is behind the one composed now, why it could not be composed, and the bus step a send there waits
-// on (that machine cannot be pushed until a person's `bus upgrade`).
-type busListState struct {
-	Machine    string
-	Behind     bool
-	Uncomposed error
-	BusStep    string
-}
-
-// remedy is the one thing that sends the bus's machine the list composed now: the plan's own reason when it
-// cannot be composed, the bus upgrade while sends there wait on it, and otherwise a push of that machine.
-func (s busListState) remedy(node string) string {
-	if s.Machine != "" {
-		node = s.Machine
-	}
-	switch {
-	case s.Uncomposed != nil:
-		return fmt.Sprintf("the user list for %s cannot be composed (%v); `plan %s` says what to fix first",
-			node, s.Uncomposed, node)
-	case s.BusStep != "":
-		return fmt.Sprintf("sends to %s wait on the bus's planned step, so a push will not carry it: %s", node, s.BusStep)
-	}
-	return fmt.Sprintf("`push %s` carries it", node)
-}
-
-// busGrantBy judges the bus's word, and names for each way it is not held the one thing that makes it held:
-//
-//   - **in force**: held;
-//   - **allowed, from a module older than `in_force`**: held, with the caveat that the reload is not confirmed.
-//     The file allows the publish, and the bus reloads within about 5 s of a change to it, so the worst case is
-//     one ask refused in those seconds, which is asked again (issue 369). The list check is not consulted:
-//     while a bus step is pending the bus's machine cannot be pushed, so any change to the composed list would
-//     read as behind for good and silence every ask until a person's bus upgrade (the review of PR 188);
-//   - **allowed, written, not reloaded** (the module gives both times): wait about 5 s;
-//   - **allowed, in force not known** (the module could not read a time): what is not known, said;
-//   - **not allowed, or the module cannot answer**: the list check decides — the remedy that sends the list
-//     when it is behind (busListState.remedy), and, for a module that cannot answer, held while the list sent
-//     is current, as main judged it.
-//
-// ask answers the machine holding the bus and its module's answer ("" when nothing holds the bus); list is the
-// record's word on the list sent to that machine.
-func busGrantBy(ask func(ctx context.Context) (string, json.RawMessage, error),
-	list func(ctx context.Context) (busListState, error)) grantJudge {
-	return func(ctx context.Context) (bool, string, error) {
-		node, raw, askErr := ask(ctx)
-		if askErr == nil && node == "" {
-			return false, "no module holds the bus, so nothing says what it enforces", nil
-		}
-		var answer busAnswer
-		if askErr == nil {
-			if answer, askErr = readBusAnswer(raw); askErr != nil {
-				askErr = fmt.Errorf("its answer could not be read: %w", askErr)
-			}
-		}
-		if askErr != nil {
-			if node == "" {
-				node = "the bus's machine"
-			}
-			s, err := list(ctx)
-			if err != nil {
-				return false, "", fmt.Errorf("the bus module on %s could not answer (%v), and whether the list sent "+
-					"there is the one composed now could not be worked out: %w", node, askErr, err)
-			}
-			if s.Behind {
-				return false, fmt.Sprintf("the bus module on %s could not answer (%v), and the user list sent there is "+
-					"behind what the mesh composes; %s", node, askErr, s.remedy(node)), nil
-			}
-			return true, fmt.Sprintf("the bus module on %s could not answer (%v); judged by the user list sent there, "+
-				"which is the one composed now", node, askErr), nil
-		}
-		notAllowed := func(older string) (bool, string, error) {
-			s, err := list(ctx)
-			if err != nil {
-				return false, "", fmt.Errorf("the user list on %s does not allow the controller to ask%s, and whether "+
-					"the list sent there is the one composed now could not be worked out: %w", node, older, err)
-			}
-			if s.Behind {
-				return false, fmt.Sprintf("the user list on %s does not allow the controller to ask%s: it is behind "+
-					"what the mesh composes; %s", node, older, s.remedy(node)), nil
-			}
-			return false, fmt.Sprintf("the user list on %s does not allow the controller to ask%s, though the list "+
-				"sent there is the one composed now; %s again", node, older, s.remedy(node)), nil
-		}
-		switch {
-		case answer.InForce == nil && answer.Allowed:
-			return true, fmt.Sprintf("the user list on %s allows the controller to ask, but its reload is not "+
-				"confirmed: the bus module there is older than the answer whether a grant is in force, and the bus "+
-				"upgrade (`bus upgrade`) carries one that confirms it", node), nil
-		case answer.InForce == nil:
-			return notAllowed(" (the bus module there is older than the answer whether a grant is in force)")
-		case !answer.Allowed:
-			return notAllowed("")
-		case *answer.InForce:
-			return true, "", nil
-		case answer.FileWritten != "" && answer.ServerLoaded != "":
-			return false, fmt.Sprintf("the bus on %s has the controller's grant to ask written (%s) but has not "+
-				"reloaded since (last load %s); it reloads in place within about 5 s, so nothing is to be done but wait",
-				node, answer.FileWritten, answer.ServerLoaded), nil
-		}
-		why := answer.Why
-		if why == "" {
-			why = "it gives no reason"
-		}
-		return false, fmt.Sprintf("the user list on %s allows the controller to ask, but whether the bus enforces it "+
-			"is not known: %s", node, why), nil
-	}
-}
-
-// busUserCanTool is the bus module's answer to whether a user may do something, and whether it is in force.
-const busUserCanTool = "nats_user_can"
-
-// busAnswer is the bus module's answer to busUserCanTool; InForce is nil from a module older than that field,
-// and FileWritten and ServerLoaded are given only when it could read both times (mesh-catalog's nats InForce).
-type busAnswer struct {
-	Allowed      bool   `json:"allowed"`
-	InForce      *bool  `json:"in_force"`
-	Why          string `json:"why"`
-	FileWritten  string `json:"file_written"`
-	ServerLoaded string `json:"server_loaded"`
-}
-
-func readBusAnswer(raw json.RawMessage) (busAnswer, error) {
-	var answer busAnswer
-	err := json.Unmarshal(raw, &answer)
-	return answer, err
-}
-
-// grantLookEvery is how often the bus's user list is judged against the one its machine was last sent.
-const grantLookEvery = 30 * time.Second
-
-// channelsIn is what the channels are now, as a fingerprint: each module claiming a kind of the channel
-// bench, where, promising what, and whether of its own account. An ask the router refused is asked again
-// once this changes.
-func channelsIn(inv *inventory.Inventory) func(ctx context.Context) string {
-	return func(ctx context.Context) string {
-		entries, err := inv.Catalogued(ctx)
-		if err != nil {
-			return ""
-		}
-		var parts []string
-		for _, e := range entries {
-			for _, c := range e.Manifest.Claims {
-				if c.Kind == "" || !catalogue.KindedBenches[c.Name] {
-					continue
-				}
-				on := append([]string(nil), e.On...)
-				sort.Strings(on)
-				caps := append([]string(nil), c.Capabilities...)
-				sort.Strings(caps)
-				parts = append(parts, fmt.Sprintf("%s/%s=%s@%s[%s]own:%t", c.Name, c.Kind, e.Manifest.Module,
-					strings.Join(on, ","), strings.Join(caps, ","), e.Manifest.RunsAs != ""))
-			}
-		}
-		sort.Strings(parts)
-		return strings.Join(parts, ";")
-	}
-}
-
-// startAsking makes the serving controller's asker and hands it the router's words.
-func startAsking(ctx context.Context, open *stores, server *link.Server, conn *nats.Conn, keeper *conditions.Keeper) {
-	js, err := jetstream.New(conn)
-	if err != nil {
-		fmt.Printf("the operator cannot be asked: %v\n", err)
-		return
-	}
-	a := servingAsker(open, conn, js, keeper)
-	if err := server.Decides(a); err != nil {
-		fmt.Printf("the operator's answers cannot be heard, so nothing is asked: %v\n", err)
-		return
-	}
-	askerFrom = a
-	go a.keep(ctx)
-}
-
-// servingAsker is the serving controller's asker, wired to the mesh: what it reads, publishes, performs and
-// records, and the judgements it asks by — the bus's grant to ask among them (novox/hq issue 353).
-func servingAsker(open *stores, conn *nats.Conn, js jetstream.JetStream, keeper *conditions.Keeper) *asker {
-	return &asker{
-		open: keeper.Open,
-		silence: func(ctx context.Context, key string, d time.Duration, by, why string) error {
-			_, err := keeper.Silence(ctx, key, d, by, why)
-			return err
-		},
-		store: busAsked{conn: conn},
-		publish: func(ctx context.Context, subject string, body []byte, id string) error {
-			_, err := js.Publish(ctx, subject, body, jetstream.WithMsgID(id))
-			return err
-		},
-		call: callAction(conn),
-		// A proposed settings layer is set by this controller itself on the warrant (novox/hq ADR 0277).
-		setLayer: setLayerIn(open),
-		record: func(ctx context.Context, act link.HandAct) error {
-			_, err := link.RecordHandAct(ctx, conn, act)
-			return err
-		},
-		routerRecord: routerRecordOf(conn, open.inventory),
-		routerHere:   routerHereIn(open.inventory),
-		grantHeld:    grantHeldIn(open, conn),
-		channels:     channelsIn(open.inventory),
-		raise: func(ctx context.Context, obs []conditions.Observation) error {
-			return keeper.Reconcile(ctx, sourceAsker, obs)
-		},
-		now:  time.Now,
-		logf: func(format string, args ...any) { fmt.Printf(format+"\n", args...) },
-	}
-}

cmd/mesh-controller/awaiting_push_integration_test.go

@@ -1,182 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"errors"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/overlay"
-)
-
-func TestAModuleAssignedAndNotPushedIsAwaitingAPushNotUncomposable(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	register(t, open, aKeeper())
-	pushedBy(t, open, "laptop") // the machine was pushed before; then the module is assigned
-	if _, err := assign(ctx, open, "laptop", "keeper"); err != nil {
-		t.Fatal(err)
-	}
-
-	// The read the rest of the mesh asks still refuses it, with the composer's typed error: nothing
-	// can be compared about a secret that does not exist (status), and nothing here string-matches.
-	plan, settings, err := planFor(ctx, open, "laptop")
-	if err != nil {
-		t.Fatal(err)
-	}
-	gens, err := generators(ctx, open)
-	if err != nil {
-		t.Fatal(err)
-	}
-	_, err = declarationWith(ctx, open, "laptop", plan, settings, gens, Reading)
-	var notMade *catalogue.NotMadeError
-	if !errors.As(err, &notMade) || notMade.Module != "keeper" || notMade.Name != "repository" {
-		t.Fatalf("a read composition did not say which secret is not made, typed: %v", err)
-	}
-	// Foreseen, it composes, names what the push makes, and made nothing.
-	foreseen, err := declarationWith(ctx, open, "laptop", plan, settings, gens, Foreseeing)
-	if err != nil || len(foreseen.foreseen) != 1 || foreseen.foreseen[0] != "keeper/repository" {
-		t.Fatalf("foreseen: %v %v", foreseen.foreseen, err)
-	}
-	if _, held, err := open.inventory.ModuleSecretIfIssued(ctx, "laptop", "keeper", "repository"); err != nil || held {
-		t.Fatalf("asking ahead of the push made the secret (held %v, %v)", held, err)
-	}
-
-	// Within the bound: nothing at all — no urgent, no warning, nobody notified.
-	if got := d1(t, open); len(got) != 0 {
-		t.Fatalf("a machine waiting for a push raised %+v", got)
-	}
-
-	// Past the bound: a warning, not urgent, saying what the push will make.
-	before := awaitingPushBound
-	awaitingPushBound = -time.Minute
-	t.Cleanup(func() { awaitingPushBound = before })
-	got := d1(t, open)
-	if len(got) != 1 || got[0].Key() != "machine.laptop.awaiting-push" || got[0].Severity != conditions.Warning ||
-		!strings.Contains(got[0].Summary, "keeper/repository") || !strings.Contains(got[0].Summary, "push laptop") {
-		t.Fatalf("a machine left un-pushed past the bound: %+v", got)
-	}
-
-	// Pushed: the secret is made and D1 says nothing.
-	pushedBy(t, open, "laptop")
-	if got := d1(t, open); len(got) != 0 {
-		t.Fatalf("a pushed machine still raised %+v", got)
-	}
-}
-
-func TestASecretThePushCannotMakeIsStillUncomposable(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	register(t, open, aTalker())
-	if _, err := assign(ctx, open, "laptop", "talker"); err != nil {
-		t.Fatal(err)
-	}
-	got := d1(t, open)
-	if len(got) != 1 || got[0].Key() != "machine.laptop.uncomposable" || got[0].Severity != conditions.Urgent ||
-		!strings.Contains(got[0].Summary, "module issue talker --node laptop") {
-		t.Fatalf("a push that will be refused was not said urgently: %+v", got)
-	}
-
-	// And a machine whose composition fails for anything else, with a secret waiting beside it, is
-	// uncomposable for that — the stand-in hides nothing.
-	register(t, open, aKeeper())
-	if _, err := assign(ctx, open, "anchor", "keeper"); err != nil {
-		t.Fatal(err)
-	}
-	one, two := rivals()
-	register(t, open, one)
-	register(t, open, two)
-	_, _ = assign(ctx, open, "anchor", "rival-one")
-	_, _ = assign(ctx, open, "anchor", "rival-two")
-	keys := map[string]conditions.Severity{}
-	for _, o := range d1(t, open) {
-		keys[o.Key()] = o.Severity
-	}
-	if keys["machine.anchor.uncomposable"] != conditions.Urgent {
-		t.Fatalf("a real failure beside a waiting secret: %v", keys)
-	}
-}
-
-func TestAGivenSecretUnderAnOldKeyIsNotForeseen(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	register(t, open, aKeeper())
-	if _, err := assign(ctx, open, "laptop", "keeper"); err != nil {
-		t.Fatal(err)
-	}
-	if err := open.inventory.AcceptSecretForModule(ctx, "laptop", "keeper", "repository", "given"); err != nil {
-		t.Fatal(err)
-	}
-	record, err := open.inventory.NodeByName(ctx, "laptop")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := open.inventory.RecordSealingKey(ctx, record.ID, aPublicKey(t)); err != nil {
-		t.Fatal(err)
-	}
-	got := d1(t, open)
-	if len(got) != 1 || got[0].Key() != "machine.laptop.uncomposable" || !strings.Contains(got[0].Summary, "issue it again") {
-		t.Fatalf("a given secret under an old key: %+v", got)
-	}
-}
-
-func TestAMachineAwaitsAPushSinceItsOldestAssignmentSinceTheLastSend(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	register(t, open, aKeeper())
-	pushedBy(t, open, "laptop")
-	sent := time.Now()
-	since, err := open.inventory.AwaitingSince(ctx, "laptop")
-	if err != nil || since.After(sent) {
-		t.Fatalf("nothing assigned since the send: waiting since %v (%v), the send was before %v", since, err, sent)
-	}
-	if _, err := assign(ctx, open, "laptop", "keeper"); err != nil {
-		t.Fatal(err)
-	}
-	since, err = open.inventory.AwaitingSince(ctx, "laptop")
-	if err != nil || since.Before(sent.Add(-time.Second)) {
-		t.Fatalf("assigned after the send: waiting since %v (%v), not from the assignment", since, err)
-	}
-}
-
-func TestALastSendIsReadFromTheSendAndTheReport(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	register(t, open, aKeeper())
-	pushedBy(t, open, "laptop")
-	if _, err := assign(ctx, open, "laptop", "keeper"); err != nil {
-		t.Fatal(err)
-	}
-	sends, err := readDeliveries(ctx, open.inventory)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if sends["laptop"].settled("keeper", time.Now()) {
-		t.Fatal("a holder assigned and not pushed is expected to answer")
-	}
-	if !sends["laptop"].settled(overlay.Name, time.Now().Add(time.Hour)) {
-		t.Fatal("a module the machine was sent long ago is not expected to answer")
-	}
-	pushedBy(t, open, "laptop")
-	sends, err = readDeliveries(ctx, open.inventory)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if sends["laptop"].settled("keeper", time.Now()) {
-		t.Fatal("pushed a moment ago and not reported, a holder is already expected")
-	}
-	if !sends["laptop"].settled("keeper", time.Now().Add(reportGrace+time.Minute)) {
-		t.Fatal("pushed past the grace, a holder is not expected")
-	}
-	if _, ok := sends["laptop"].carried["keeper"]; !ok {
-		t.Fatalf("the send's builds do not carry keeper: %v", sends["laptop"].carried)
-	}
-	pushedAndApplied(t, open, "laptop")
-	if sends, err = readDeliveries(ctx, open.inventory); err != nil || !sends["laptop"].settled("keeper", time.Now()) {
-		t.Fatalf("pushed and reported applied, a holder is not expected to answer (%v)", err)
-	}
-}

cmd/mesh-controller/awaiting_push_test.go

@@ -1,115 +0,0 @@
-package main
-
-import (
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// Between `assign` and `push` a module's own secrets are not made yet: the push makes them. D1 composed
-// the machine's declaration without making anything, failed on the missing secret, and raised an urgent
-// "nothing can be sent to <machine>" — seen live on 2026-10-06, a desktop notification for a machine
-// the next push sent to without a word (novox/hq issue 275). D1 now composes as the push would, with a
-// stand-in for what the push makes: pending, not broken, and said only past a bound, as a warning.
-
-// aKeeper is a module with an own secret the mesh makes — a backup repository's password.
-func aKeeper() catalogue.Manifest {
-	return catalogue.Manifest{Module: "keeper", Version: "1",
-		OwnSecrets: catalogue.OwnSecrets{"repository": {Path: "/var/lib/mesh/keeper/repository"}},
-		Resources: []map[string]any{
-			{"id": "state", "type": "directory", "path": "/var/lib/mesh/keeper", "mode": "0700"},
-		}}
-}
-
-// pushedBy records a send to a machine as a push does — composed on the send path, so its own secrets
-// are made — without a bus to carry it.
-func pushedBy(t *testing.T, open *stores, node string) string {
-	t.Helper()
-	ctx := t.Context()
-	plan, settings, err := planFor(ctx, open, node)
-	if err != nil {
-		t.Fatal(err)
-	}
-	declared, err := declarationFor(ctx, open, node, plan, settings)
-	if err != nil {
-		t.Fatal(err)
-	}
-	body, err := declared.Body()
-	if err != nil {
-		t.Fatal(err)
-	}
-	record, err := open.inventory.NodeByName(ctx, node)
-	if err != nil {
-		t.Fatal(err)
-	}
-	digest := digestOf(body)
-	if err := open.inventory.RecordSent(ctx, record.ID, digest, declared.Builds); err != nil {
-		t.Fatal(err)
-	}
-	return digest
-}
-
-// pushedAndApplied is pushedBy, and the machine reporting it applied that declaration.
-func pushedAndApplied(t *testing.T, open *stores, node string) {
-	t.Helper()
-	digest := pushedBy(t, open, node)
-	record, err := open.inventory.NodeByName(t.Context(), node)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if _, err := open.inventory.RecordDoing(t.Context(), record.ID, inventory.Doing{
-		Outcome: inventory.OutcomeApplied, Declared: digest}); err != nil {
-		t.Fatal(err)
-	}
-}
-
-// d1 runs D1 once.
-func d1(t *testing.T, open *stores) []conditions.Observation {
-	t.Helper()
-	got, err := probeDeclarations(t.Context(), &doctor{open: open})
-	if err != nil {
-		t.Fatal(err)
-	}
-	return got
-}
-
-// **THE WINDOW, REPRODUCED**: assigned and not pushed, a module whose own secret the push makes is
-// waiting, not uncomposable; past the bound it is a warning naming what the push makes; pushed, nothing.
-
-// **A REAL FAILURE IS STILL URGENT**: a secret the push would be refused on is not one it will make.
-// A bus credential nobody issued (issue 203) fails the push, so D1 says it — urgent, in the push's words.
-
-// A given secret sealed to a key the machine no longer has is not the mesh's to make again: the push is
-// refused on it, so D1 is too.
-
-// The bound is read from when the machine began waiting: the oldest assignment since its last send.
-
-// **D3 AND D13 WAIT FOR THE SEND**: a holder is expected to answer on a machine once the machine was sent
-// it and had time to report — never between assign and push.
-func TestAHolderIsExpectedOnlyOnceSentAndReported(t *testing.T) {
-	now := time.Now()
-	sent := now.Add(-time.Minute)
-	long := now.Add(-time.Hour)
-	cases := []struct {
-		name string
-		send lastSend
-		want bool
-	}{
-		{"never sent", lastSend{}, false},
-		{"sent without it", lastSend{sent: &long, current: true, carried: map[string]string{"other": "c"}}, false},
-		{"sent with it, not reported yet", lastSend{sent: &sent, carried: map[string]string{"keeper": "c"}}, false},
-		{"sent with it and reported", lastSend{sent: &sent, current: true, carried: map[string]string{"keeper": "c"}}, true},
-		{"sent with it long ago, never reported", lastSend{sent: &long, carried: map[string]string{"keeper": "c"}}, true},
-		{"sent before builds were kept", lastSend{sent: &long, current: true}, true},
-	}
-	for _, c := range cases {
-		if got := c.send.settled("keeper", now); got != c.want {
-			t.Errorf("%s: settled %v, want %v", c.name, got, c.want)
-		}
-	}
-}
-
-// And through the stores: assigned, not in the last send; pushed and reported, carried and settled.

cmd/mesh-controller/backups_before_send_integration_test.go

@@ -1,308 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"encoding/json"
-	"os"
-	"strings"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/nats-io/nats.go"
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-	"github.com/novox/mesh-controller/internal/testbus"
-)
-
-// aBackupSeatOnTheBus is one machine's node-backup holder as a test makes it: it counts the `now` asks it hears and
-// answers `backed-up` with the last night it is told (novox/hq ADR 0404).
-type aBackupSeatOnTheBus struct {
-	mu    sync.Mutex
-	nows  []string
-	night map[string]any // module → lastNight
-}
-
-func (f *aBackupSeatOnTheBus) serve(t *testing.T, conn *nats.Conn, node string) {
-	t.Helper()
-	reply := func(m *nats.Msg, result any) {
-		body, _ := json.Marshal(map[string]any{"result": result, "error": "", "node": node})
-		_ = m.Respond(body)
-	}
-	now, err := conn.Subscribe(link.NodeSeatToolSubject(catalogue.BackupSeat, "now", node), func(m *nats.Msg) {
-		var a struct {
-			Module string `json:"module"`
-		}
-		_ = json.Unmarshal(m.Data, &a)
-		f.mu.Lock()
-		f.nows = append(f.nows, a.Module)
-		f.mu.Unlock()
-		reply(m, map[string]any{"started": a.Module})
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-	read, err := conn.Subscribe(link.NodeSeatToolSubject(catalogue.BackupSeat, "backed-up", node), func(m *nats.Msg) {
-		f.mu.Lock()
-		defer f.mu.Unlock()
-		var out []map[string]any
-		for module, n := range f.night {
-			out = append(out, map[string]any{"module": module, "lastNight": n})
-		}
-		reply(m, out)
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(func() { _ = now.Unsubscribe(); _ = read.Unsubscribe() })
-	if err := conn.Flush(); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func (f *aBackupSeatOnTheBus) answers(module string, ok bool, words string) {
-	f.mu.Lock()
-	defer f.mu.Unlock()
-	f.night = map[string]any{module: map[string]any{"ok": ok, "at": time.Now().UTC().Add(time.Second), "error": words}}
-}
-
-func (f *aBackupSeatOnTheBus) asks() int {
-	f.mu.Lock()
-	defer f.mu.Unlock()
-	return len(f.nows)
-}
-
-// Acceptance test 3 of design 47, on the controller's side: a delivery plan that moves a module keeping data waits
-// for its backups on both machines before it asks a build; a backup that fails holds it, with the machine, the
-// module and the backup's words, and a condition says the same; the verb the delivery's release calls asks the
-// backups again, and the plan goes on. One bus and one store for the scenarios.
-func TestADeliveryThatMovesABackedUpModuleWaitsForItsBackupAndAFailedOneHoldsItAndIsSaid(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	asked := asksRecorded(t)
-	js, err := broker.Dial(testbus.URL(t))
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(js.Close)
-	before := handActConn
-	handActConn = js.Conn()
-	t.Cleanup(func() { handActConn = before })
-
-	if _, err := inv.SeedSeats(ctx, catalogue.DefaultSeats()); err != nil {
-		t.Fatal(err)
-	}
-	register(t, open, catalogue.Manifest{Module: "keeper", Version: "1",
-		Claims: []catalogue.Claim{{Name: catalogue.BackupSeat, Scope: catalogue.ScopeNode, Serves: []string{"backed-up", "now", "restore"}}}})
-	notes, err := catalogue.ParseManifest([]byte(`{"module":"notes","version":"1","data":{"own":[` +
-		`{"id":"files","path":"${dir:files}","class":"valuable","why":"people's notes"}]},` +
-		`"resources":[{"id":"files","type":"directory"}]}`))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := inv.RegisterModule(ctx, notes, inventory.Source{Repository: "novox/mesh-catalog", Seat: "git",
-		Path: "modules/notes", Ref: "main", BuiltFrom: "c0", Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-	for _, node := range []string{"anchor", "laptop"} {
-		if _, err := assign(ctx, open, node, "keeper"); err != nil {
-			t.Fatal(err)
-		}
-		if _, err := assign(ctx, open, node, "notes"); err != nil {
-			t.Fatal(err)
-		}
-	}
-	seats := map[string]*aBackupSeatOnTheBus{"anchor": {}, "laptop": {}}
-	for node, s := range seats {
-		s.serve(t, js.Conn(), node)
-	}
-	// Short waits: the bound and the look are variables, so nothing here waits for the minutes of a real backup.
-	wasWithin, wasEvery := backupsWithin, backupsPollEvery
-	backupsWithin, backupsPollEvery = time.Minute, 10*time.Millisecond
-	t.Cleanup(func() { backupsWithin, backupsPollEvery = wasWithin, wasEvery })
-
-	newPlan := func(id string) {
-		t.Helper()
-		p := inventory.Plan{ID: id, Repository: "novox/mesh-catalog", Branch: "main", Commit: "c1", Created: time.Now().UTC(),
-			State: inventory.PlanBuilding, Tiers: [][]string{{"notes"}}, Modules: map[string]*inventory.PlanModule{"notes": {}}}
-		if err := inv.SavePlan(ctx, &p); err != nil {
-			t.Fatal(err)
-		}
-	}
-	read := func(id string) inventory.Plan {
-		t.Helper()
-		p, err := inv.PlanByID(ctx, id)
-		if err != nil {
-			t.Fatal(err)
-		}
-		return p
-	}
-
-	// 1. Both machines are asked; while one has not answered, no build is asked.
-	newPlan("plan-one")
-	advancePlans(ctx, open)
-	if seats["anchor"].asks() != 1 || seats["laptop"].asks() != 1 || len(*asked) != 0 {
-		t.Fatalf("asks anchor=%d laptop=%d builds=%v", seats["anchor"].asks(), seats["laptop"].asks(), *asked)
-	}
-	seats["anchor"].answers("notes", true, "")
-	advancePlans(ctx, open)
-	if len(*asked) != 0 || read("plan-one").Backups.State != inventory.BackupPending {
-		t.Fatalf("a tier was asked while a backup was pending: %v %+v", *asked, read("plan-one").Backups)
-	}
-	seats["laptop"].answers("notes", true, "")
-	advancePlans(ctx, open)
-	if len(*asked) != 1 || read("plan-one").Backups.State != inventory.BackupDone {
-		t.Fatalf("the tier was not asked once every backup was done: %v %+v", *asked, read("plan-one").Backups)
-	}
-	finish := read("plan-one")
-	finish.State = inventory.PlanDone
-	if err := inv.SavePlan(ctx, &finish); err != nil {
-		t.Fatal(err)
-	}
-
-	// 2. A backup that fails holds the plan: not failed, nothing asked, the words kept, a condition raised.
-	seats["anchor"].night, seats["laptop"].night = nil, nil
-	newPlan("plan-two")
-	advancePlans(ctx, open)
-	seats["anchor"].answers("notes", true, "")
-	seats["laptop"].answers("notes", false, "no space left on device")
-	advancePlans(ctx, open)
-	held := read("plan-two")
-	if held.State != inventory.PlanBuilding || held.Backups.State != inventory.BackupFailed || len(*asked) != 1 {
-		t.Fatalf("the plan was not held: %s %+v builds=%v", held.State, held.Backups, *asked)
-	}
-	var failed *inventory.PlanBackup
-	for i := range held.Backups.Asked {
-		if held.Backups.Asked[i].State == inventory.BackupFailed {
-			failed = &held.Backups.Asked[i]
-		}
-	}
-	if failed == nil || failed.Machine != "laptop" || failed.Module != "notes" || failed.Words != "no space left on device" ||
-		strings.Contains(held.Note, "tried again") {
-		t.Fatalf("the failed backup: %+v note=%q", failed, held.Note)
-	}
-	advancePlans(ctx, open) // not retried on the next look
-	if again := read("plan-two"); again.Backups.State != inventory.BackupFailed || len(*asked) != 1 ||
-		seats["laptop"].asks() != 2 {
-		t.Fatalf("a held plan was asked again by itself: %+v builds=%v asks=%d", again.Backups, *asked, seats["laptop"].asks())
-	}
-	said, err := probeBackupHeld(ctx, &doctor{open: open})
-	if err != nil || len(said) != 1 || said[0].Kind != kindBackupHeld || !strings.Contains(said[0].Said, "no space left on device") {
-		t.Fatalf("the condition: %+v %v", said, err)
-	}
-
-	// 3. The verb the release calls: the failed backup is asked again, and only it, and the plan goes on.
-	seats["laptop"].answers("notes", false, "no space left on device")
-	if err := deliveryCommand(ctx, []string{"backups-again", "plan-two", "--why", "a person released it", "--by",
-		"mesh-delivery for jochen"}); err != nil {
-		t.Fatal(err)
-	}
-	if err := deliveryCommand(ctx, []string{"backups-again", "plan-two", "--why", "again"}); err == nil {
-		t.Fatal("a plan with no failed backup was asked again")
-	}
-	seats["laptop"].night = nil
-	advancePlans(ctx, open)
-	if seats["laptop"].asks() != 3 || seats["anchor"].asks() != 2 {
-		t.Fatalf("asked again: laptop=%d anchor=%d", seats["laptop"].asks(), seats["anchor"].asks())
-	}
-	seats["laptop"].answers("notes", true, "")
-	advancePlans(ctx, open)
-	if got := read("plan-two"); got.Backups.State != inventory.BackupDone || len(*asked) != 2 {
-		t.Fatalf("the plan did not go on: %+v builds=%v", got.Backups, *asked)
-	}
-	if said, _ := probeBackupHeld(ctx, &doctor{open: open}); len(said) != 0 {
-		t.Fatalf("the condition stays: %+v", said)
-	}
-}
-
-// Issue 1086: a plan cut from a merge asked its first tier at the cut, so a module keeping data was sent without the
-// backup the plan promised. The cut now takes the backups first (askFirstTierAtCut, batches.go), and the walk's own
-// step asks the tier once they are done.
-func TestAPlanCutFromAMergeOfABackedUpModuleAsksItsBackupAndNotItsTierUntilItIsDone(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	settings := t.TempDir() + "/merge-window.json"
-	if err := os.WriteFile(settings, []byte(`{"merge-window": "90s", "merge-window-at-most": "10m"}`), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	t.Setenv(mergeWindowFileVar, settings)
-	everyHeadWaits(t)
-	asked := asksRecorded(t)
-	js, err := broker.Dial(testbus.URL(t))
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(js.Close)
-	before := handActConn
-	handActConn = js.Conn()
-	t.Cleanup(func() { handActConn = before })
-
-	if _, err := inv.SeedSeats(ctx, catalogue.DefaultSeats()); err != nil {
-		t.Fatal(err)
-	}
-	register(t, open, catalogue.Manifest{Module: "keeper", Version: "1",
-		Claims: []catalogue.Claim{{Name: catalogue.BackupSeat, Scope: catalogue.ScopeNode, Serves: []string{"backed-up", "now", "restore"}}}})
-	if err := inv.RegisterModule(ctx, catalogue.Manifest{Module: "mesh-controller", Version: "1"},
-		inventory.Source{Repository: "novox/mesh-controller", Seat: "git", Ref: "main", BuiltFrom: "c0", Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-	notes, err := catalogue.ParseManifest([]byte(`{"module":"notes","version":"1","data":{"own":[` +
-		`{"id":"files","path":"${dir:files}","class":"valuable","why":"people's notes"}]},` +
-		`"resources":[{"id":"files","type":"directory"}]}`))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := inv.RegisterModule(ctx, notes, inventory.Source{Repository: "novox/notes", Seat: "git", Ref: "main",
-		BuiltFrom: "c0", Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-	for _, m := range []string{"keeper", "notes"} {
-		if _, err := assign(ctx, open, "anchor", m); err != nil {
-			t.Fatal(err)
-		}
-	}
-	seat := &aBackupSeatOnTheBus{}
-	seat.serve(t, js.Conn(), "anchor")
-	wasWithin, wasEvery := backupsWithin, backupsPollEvery
-	backupsWithin, backupsPollEvery = time.Minute, 10*time.Millisecond
-	t.Cleanup(func() { backupsWithin, backupsPollEvery = wasWithin, wasEvery })
-
-	// 1. A merge of notes is heard and its window closes: the batch is cut through cutBatch.
-	hear(t, open, repoMerge("notes", "c-notes", t0), t0.Add(time.Second))
-	cutAt(t, open, t0.Add(time.Second+90*time.Second))
-	ws, _ := walks(t, open)
-	if len(ws) != 1 {
-		t.Fatalf("%d walk(s)", len(ws))
-	}
-	// 2. Right after the cut no tier is asked, the record has anchor/notes pending, the seat heard one `now`.
-	cut, err := inv.PlanByID(ctx, ws[0].ID)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(*asked) != 0 || askedInTier(cut) {
-		t.Fatalf("the first tier was asked at the cut: %v %+v", *asked, cut.Modules)
-	}
-	if cut.Backups == nil || cut.Backups.State != inventory.BackupPending || len(cut.Backups.Asked) != 1 ||
-		cut.Backups.Asked[0].Machine != "anchor" || cut.Backups.Asked[0].Module != "notes" {
-		t.Fatalf("the backups of the cut: %+v", cut.Backups)
-	}
-	if seat.asks() != 1 {
-		t.Fatalf("the seat heard %d `now`", seat.asks())
-	}
-	// 3. The backup answers done: the walk's own step asks the first tier, once, and asks no second backup.
-	seat.answers("notes", true, "")
-	advancePlans(ctx, open)
-	advancePlans(ctx, open)
-	after, err := inv.PlanByID(ctx, ws[0].ID)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(*asked) != 1 || after.Backups.State != inventory.BackupDone || seat.asks() != 1 {
-		t.Fatalf("builds=%v backups=%+v asks=%d", *asked, after.Backups, seat.asks())
-	}
-}

cmd/mesh-controller/batches_integration_test.go

@@ -1,698 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"bytes"
-	"io"
-	"os"
-	"slices"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-func windowed(t *testing.T) *stores {
-	t.Helper()
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	settings := t.TempDir() + "/merge-window.json"
-	if err := os.WriteFile(settings, []byte(`{"merge-window": "90s", "merge-window-at-most": "10m"}`), 0o600); err != nil {
-		t.Fatal(err)
-	}
-	t.Setenv(mergeWindowFileVar, settings)
-	noGroups(t)
-	if err := inv.RegisterModule(ctx, catalogue.Manifest{Module: "mesh-controller", Version: "1"},
-		inventory.Source{Repository: "novox/mesh-controller", Seat: "git", Ref: "main", BuiltFrom: "c0",
-			Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-	for _, m := range []struct{ module, repository, path string }{
-		{"app", "novox/mesh-catalog", "modules/app"},
-		{"notes", "novox/mesh-catalog", "modules/notes"},
-		{"one", "novox/one", ""},
-		{"two", "novox/two", ""},
-		{"three", "novox/three", ""},
-	} {
-		if err := inv.RegisterModule(ctx, catalogue.Manifest{Module: m.module, Version: "1"},
-			inventory.Source{Repository: m.repository, Seat: "git", Path: m.path, Ref: "main", BuiltFrom: "c0",
-				Head: "c0"}); err != nil {
-			t.Fatal(err)
-		}
-	}
-	return open
-}
-
-func hear(t *testing.T, open *stores, m link.SourceMoved, now time.Time) {
-	t.Helper()
-	if err := (following{open: open}).hearMerge(t.Context(), m, now); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func cutAt(t *testing.T, open *stores, now time.Time) {
-	t.Helper()
-	if err := cutBatchesHeld(t.Context(), open, now); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestTwoMergesSecondsApartAreOneWalkAtTheLaterCommit(t *testing.T) {
-	open := windowed(t)
-	everyHeadWaits(t)
-	asked := asksWithPaths(t)
-	claude := catalogueMerge("553b7191claude", "app", t0)
-	dunst := catalogueMerge("48bda475dunst", "notes", t0.Add(17*time.Second))
-	hear(t, open, claude, t0.Add(time.Second))
-	hear(t, open, dunst, t0.Add(18*time.Second))
-	if ws, bs := walks(t, open); len(ws) != 0 || len(bs) != 1 {
-		t.Fatalf("within the window: %d walk(s), %d batch(es)", len(ws), len(bs))
-	}
-	cutAt(t, open, t0.Add(18*time.Second+89*time.Second))
-	if ws, _ := walks(t, open); len(ws) != 0 {
-		t.Fatalf("cut before the window closed: %+v", ws)
-	}
-	cutAt(t, open, t0.Add(18*time.Second+90*time.Second))
-	ws, bs := walks(t, open)
-	if len(ws) != 1 || len(bs) != 0 {
-		t.Fatalf("after the window: %d walk(s), %d batch(es)", len(ws), len(bs))
-	}
-	w := ws[0]
-	if w.Commit != dunst.Commit || len(w.Commits) != 1 || w.Commits[0].Commit != dunst.Commit {
-		t.Fatalf("the walk is at %s %+v, not the later commit", w.Commit, w.Commits)
-	}
-	for _, m := range []string{"app", "notes"} {
-		if _, in := w.Modules[m]; !in {
-			t.Fatalf("the walk does not build %s, which one of its merges moved: %v", m, w.Modules)
-		}
-	}
-	want := []inventory.PlanMerge{{Repository: "novox/mesh-catalog", Commit: claude.Commit, Carried: dunst.Commit},
-		{Repository: "novox/mesh-catalog", Commit: dunst.Commit}}
-	if w.Delivery == nil || !slices.EqualFunc(w.Delivery.Merges, want, sameMerge) {
-		t.Fatalf("the walk answers %+v, want %+v", w.Delivery, want)
-	}
-	if len(*asked) != 2 || (*asked)[0][2] != "main" || (*asked)[1][2] != "main" {
-		t.Fatalf("the walk did not ask its modules at the branch, which holds the commit it carries: %v", *asked)
-	}
-	// Heard again, as the bus may hand it over twice: never a second merge, nor a second walk.
-	hear(t, open, claude, t0.Add(5*time.Minute))
-	if ws, bs := walks(t, open); len(ws) != 1 || len(bs) != 0 {
-		t.Fatalf("a merge heard twice made %d walk(s) and %d batch(es)", len(ws), len(bs))
-	}
-}
-
-func TestThreeRepositoriesInOneWindowAreOneWalk(t *testing.T) {
-	open := windowed(t)
-	groupsWaiting(t, "feat/three")
-	asksRecorded(t)
-	for i, r := range []string{"one", "two", "three"} {
-		hear(t, open, fromHead(repoMerge(r, "c-"+r, t0.Add(time.Duration(i)*20*time.Second)), "feat/three"),
-			t0.Add(time.Duration(i)*20*time.Second+time.Second))
-	}
-	cutAt(t, open, t0.Add(41*time.Second+90*time.Second))
-	ws, bs := walks(t, open)
-	if len(ws) != 1 || len(bs) != 0 {
-		t.Fatalf("%d walk(s), %d batch(es)", len(ws), len(bs))
-	}
-	w := ws[0]
-	if len(w.Commits) != 3 || len(w.Delivery.Merges) != 3 {
-		t.Fatalf("the walk carries %+v and answers %+v", w.Commits, w.Delivery.Merges)
-	}
-	for _, r := range []string{"one", "two", "three"} {
-		if w.CommitOf("novox/"+r) != "c-"+r {
-			t.Fatalf("the walk carries %s at %q", r, w.CommitOf("novox/"+r))
-		}
-		if _, in := w.Modules[r]; !in {
-			t.Fatalf("the walk does not build %s: %v", r, w.Modules)
-		}
-	}
-	// Each module's ask is recorded at its own repository's commit.
-	for _, r := range []string{"one", "two", "three"} {
-		q, found, err := open.inventory.BuildRequestByID(t.Context(), w.Modules[r].Build)
-		if err != nil || !found || q.Commit != "c-"+r {
-			t.Fatalf("%s's build was not recorded at its own commit: %+v %v %v", r, q, found, err)
-		}
-	}
-}
-
-func TestAMergeRestartsTheWindowAndTheMaximumClosesIt(t *testing.T) {
-	open := windowed(t)
-	groupsWaiting(t, "feat/both", "feat/busy")
-	asksWithPaths(t)
-	hear(t, open, fromHead(repoMerge("one", "c1", t0), "feat/both"), t0)
-	hear(t, open, fromHead(repoMerge("two", "c2", t0.Add(80*time.Second)), "feat/both"), t0.Add(80*time.Second))
-	cutAt(t, open, t0.Add(100*time.Second))
-	if ws, _ := walks(t, open); len(ws) != 0 {
-		t.Fatal("the window closed 90 seconds after its first merge, not after its last")
-	}
-	cutAt(t, open, t0.Add(170*time.Second))
-	if ws, _ := walks(t, open); len(ws) != 1 || len(ws[0].Commits) != 2 {
-		t.Fatalf("the window did not close 90 seconds after its last merge: %+v", ws)
-	}
-
-	busy := windowed(t)
-	groupsWaiting(t, "feat/both", "feat/busy")
-	asksWithPaths(t)
-	var last time.Time
-	for i := 0; i < 12; i++ {
-		last = t0.Add(time.Duration(i) * time.Minute)
-		repo := []string{"one", "two", "three"}[i%3]
-		hear(t, busy, fromHead(repoMerge(repo, "c"+string(rune('a'+i)), last), "feat/busy"), last)
-		if ws, _ := walks(t, busy); len(ws) > 0 {
-			if i != 10 {
-				t.Fatalf("a busy window closed at merge %d (minute %d), not at its maximum", i, i)
-			}
-			break
-		}
-	}
-	ws, _ := walks(t, busy)
-	if len(ws) != 1 {
-		t.Fatalf("ten minutes of merges a minute apart were never cut: %d walk(s)", len(ws))
-	}
-}
-
-func TestTheAssemblingBatchIsShown(t *testing.T) {
-	open := windowed(t)
-	groupsWaiting(t, "pr/553b7191claude")
-	asksWithPaths(t)
-	var said []inventory.Plan
-	was := inventory.PlanSaved
-	inventory.PlanSaved = func(_ *inventory.Inventory, p inventory.Plan) { said = append(said, p) }
-	t.Cleanup(func() { inventory.PlanSaved = was })
-	now := time.Now().UTC()
-	claude := catalogueMerge("553b7191claude", "app", now.Add(-20*time.Second))
-	claude.Number, claude.Title = 174, "claude-code: an agent proposes a section"
-	dunst := catalogueMerge("48bda475dunst", "notes", now.Add(-2*time.Second))
-	dunst.Number, dunst.Title = 175, "dunst: the font the operator chose"
-	hear(t, open, claude, now.Add(-19*time.Second))
-	hear(t, open, dunst, now.Add(-time.Second))
-	hear(t, open, fromHead(repoMerge("one", "a6bc0931one", now), dunst.Head), now)
-	out := captured(t, func() error { return plansCommand(t.Context(), nil) })
-	lines := strings.Split(out, "\n")
-	first := lines[0]
-	for _, want := range []string{"assembling: ", " s left (at the latest ", "grouped: novox/mesh-catalog@48bda475 " +
-		"(answers 553b7191), novox/one@a6bc0931; plan not yet calculated"} {
-		if !strings.Contains(first, want) {
-			t.Fatalf("plans' first line %q does not say %q", first, want)
-		}
-	}
-	// Under it, one line per repository: the pull request, what it answers, what it moves.
-	if len(lines) < 3 || strings.TrimSpace(lines[1]) != "mesh-catalog #175 dunst: the font the operator chose (answers "+
-		"#174 claude-code: an agent proposes a section) · app, notes" ||
-		strings.TrimSpace(lines[2]) != "one a6bc0931 · one" {
-		t.Fatalf("the grouped list reads %q", lines[1:4])
-	}
-	if len(said) == 0 || said[len(said)-1].State != inventory.PlanAssembling || said[len(said)-1].Delivery.Batch == nil ||
-		len(said[len(said)-1].Delivery.Merges) != 3 {
-		t.Fatalf("the batch was not said as assembling with its merges: %+v", said)
-	}
-}
-
-func captured(t *testing.T, run func() error) string {
-	t.Helper()
-	r, w, err := os.Pipe()
-	if err != nil {
-		t.Fatal(err)
-	}
-	was := os.Stdout
-	os.Stdout = w
-	runErr := run()
-	os.Stdout = was
-	_ = w.Close()
-	var b bytes.Buffer
-	_, _ = io.Copy(&b, r)
-	if runErr != nil {
-		t.Fatal(runErr)
-	}
-	return b.String()
-}
-
-func TestAMergeDuringAWalkJoinsTheNextBatch(t *testing.T) {
-	open := windowed(t)
-	asksWithPaths(t)
-	hear(t, open, repoMerge("one", "c1", t0), t0)
-	cutAt(t, open, t0.Add(90*time.Second))
-	ws, _ := walks(t, open)
-	if len(ws) != 1 || !ws[0].Open() {
-		t.Fatalf("the first batch was not cut: %+v", ws)
-	}
-	first := ws[0]
-	hear(t, open, repoMerge("one", "c2", t0.Add(2*time.Minute)), t0.Add(2*time.Minute))
-	cutAt(t, open, t0.Add(5*time.Minute))
-	ws, bs := walks(t, open)
-	if len(ws) != 1 || len(bs) != 1 || bs[0].State != inventory.PlanQueued || bs[0].Delivery.Batch.Behind != first.ID {
-		t.Fatalf("the merge during the walk: %d walk(s), batches %+v", len(ws), bs)
-	}
-	if got, _ := open.inventory.PlanByID(t.Context(), first.ID); !got.Open() {
-		t.Fatalf("the started walk was %s by the next merge", got.State)
-	}
-	if !strings.HasPrefix(batchWords(bs[0], t0.Add(5*time.Minute)), "queued behind "+first.ID) {
-		t.Fatalf("a queued batch reads %q", batchWords(bs[0], t0.Add(5*time.Minute)))
-	}
-	first.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(t.Context(), &first); err != nil {
-		t.Fatal(err)
-	}
-	cutAt(t, open, t0.Add(6*time.Minute))
-	ws, bs = walks(t, open)
-	if len(ws) != 2 || len(bs) != 0 || ws[0].Commit != "c2" {
-		t.Fatalf("the queued batch was not cut when the walk ended: %+v %+v", ws, bs)
-	}
-}
-
-func TestAWaitingWalkIsFoldedIntoTheNextBatch(t *testing.T) {
-	open := windowed(t)
-	asksWithPaths(t)
-	ctx := t.Context()
-	if err := open.inventory.RegisterModule(ctx, catalogue.Manifest{Module: "mesh-delivery", Version: "1",
-		Claims: []catalogue.Claim{{Name: catalogue.DeliverySeat, Scope: catalogue.ScopeMesh}}},
-		inventory.Source{Repository: "novox/mesh-catalog", Seat: "git", Path: "modules/mesh-delivery", Ref: "main",
-			BuiltFrom: "c0", Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-	if _, err := open.inventory.Assign(ctx, "anchor", "mesh-delivery"); err != nil {
-		t.Fatal(err)
-	}
-	hear(t, open, repoMerge("one", "c1", t0), t0)
-	cutAt(t, open, t0.Add(90*time.Second))
-	ws, _ := walks(t, open)
-	if len(ws) != 1 || !ws[0].Waiting() {
-		t.Fatalf("the walk does not wait for its word: %+v", ws)
-	}
-	waiting := ws[0]
-	hear(t, open, repoMerge("one", "c2", t0.Add(2*time.Minute)), t0.Add(2*time.Minute))
-	cutAt(t, open, t0.Add(2*time.Minute+90*time.Second))
-	ws, bs := walks(t, open)
-	if len(bs) != 0 || len(ws) != 2 {
-		t.Fatalf("%d walk(s), %d batch(es)", len(ws), len(bs))
-	}
-	folded, err := open.inventory.PlanByID(ctx, waiting.ID)
-	if err != nil {
-		t.Fatal(err)
-	}
-	newer := ws[0]
-	if folded.State != inventory.PlanSuperseded || folded.Delivery.TakenOverBy != newer.ID {
-		t.Fatalf("the waiting walk is %s, taken over by %q", folded.State, folded.Delivery.TakenOverBy)
-	}
-	if len(newer.Delivery.Merges) != 2 || newer.CommitOf("novox/one") != "c2" {
-		t.Fatalf("the newer walk answers %+v", newer.Delivery.Merges)
-	}
-	if _, in := newer.Modules["one"]; !in {
-		t.Fatalf("what the folded walk was to build is not built: %v", newer.Modules)
-	}
-}
-
-func TestALateMergeIsAnsweredByTheWalkOfTheLaterOne(t *testing.T) {
-	open := windowed(t)
-	everyHeadWaits(t)
-	asksWithPaths(t)
-	ctx := t.Context()
-	later := catalogueMerge("48bda475dunst", "notes", t0.Add(17*time.Second))
-	hear(t, open, later, t0.Add(18*time.Second))
-	cutAt(t, open, t0.Add(2*time.Minute))
-	ws, _ := walks(t, open)
-	w := ws[0]
-	w.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &w); err != nil {
-		t.Fatal(err)
-	}
-	// Moves only notes, which the done walk built from the branch after it: answered there, at once.
-	hear(t, open, catalogueMerge("553b7191early", "notes", t0), t0.Add(15*time.Minute))
-	got, _ := open.inventory.PlanByID(ctx, w.ID)
-	if got.State != inventory.PlanDone || len(got.Delivery.Merges) != 2 ||
-		!sameMerge(got.Delivery.Merges[0], inventory.PlanMerge{Repository: "novox/mesh-catalog", Commit: "553b7191early",
-			Carried: later.Commit}) {
-		t.Fatalf("the late merge is not named by the walk that carried it: %+v", got.Delivery.Merges)
-	}
-	// Moves app, which that walk never built: the next batch walks it.
-	hear(t, open, catalogueMerge("1111aaaaapp", "app", t0.Add(time.Second)), t0.Add(16*time.Minute))
-	_, bs := walks(t, open)
-	if len(bs) != 1 || bs[0].Delivery.Merges[0].Commit != "1111aaaaapp" {
-		t.Fatalf("a late merge moving what the walk never built did not join the next batch: %+v", bs)
-	}
-}
-
-func TestAFailedWalkWalksItsEarlierMergesAlone(t *testing.T) {
-	open := windowed(t)
-	everyHeadWaits(t)
-	asked := asksWithPaths(t)
-	ctx := t.Context()
-	// Made before the cut marks their modules seen, as merges are: walked again, they are news all the same.
-	oldest := catalogueMerge("aaaa0001", "app", t0.Add(-3*time.Minute))
-	middle := catalogueMerge("bbbb0002", "app", t0.Add(-3*time.Minute+10*time.Second))
-	newest := catalogueMerge("cccc0003", "notes", t0.Add(-3*time.Minute+20*time.Second))
-	for i, m := range []link.SourceMoved{oldest, middle, newest} {
-		hear(t, open, m, t0.Add(time.Duration(i)*10*time.Second+time.Second))
-	}
-	cutAt(t, open, t0.Add(2*time.Minute))
-	ws, _ := walks(t, open)
-	failed := ws[0]
-	failed.State, failed.Note = inventory.PlanFailed, "notes failed to build in tier 0"
-	if err := open.inventory.SavePlan(ctx, &failed); err != nil {
-		t.Fatal(err)
-	}
-	cutAt(t, open, t0.Add(3*time.Minute))
-	got, _ := open.inventory.PlanByID(ctx, failed.ID)
-	if got.State != inventory.PlanFailed || len(got.Delivery.Merges) != 3 {
-		t.Fatalf("the failed walk's record changed: %s %+v", got.State, got.Delivery.Merges)
-	}
-	ws, _ = walks(t, open)
-	alone := ws[0]
-	if alone.ID == failed.ID || alone.Commit != middle.Commit || len(alone.Delivery.Merges) != 1 ||
-		!sameMerge(alone.Delivery.Merges[0], inventory.PlanMerge{Repository: "novox/mesh-catalog", Commit: middle.Commit}) {
-		t.Fatalf("the newest earlier merge was not walked alone on its own commit: %+v", alone)
-	}
-	if _, in := alone.Modules["app"]; !in || (*asked)[len(*asked)-1] != [3]string{"novox/mesh-catalog", "modules/app",
-		middle.Commit} {
-		t.Fatalf("the merge walked alone does not build app at its own commit: %v, asked %v", alone.Modules, *asked)
-	}
-	// Retried, the failed walk would name merges the search answers now.
-	if _, err := retryPlan(ctx, open, failed.ID); err == nil || !strings.Contains(err.Error(), "walked alone") {
-		t.Fatalf("a failed walk whose merges are searched was retried: %v", err)
-	}
-	alone.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &alone); err != nil {
-		t.Fatal(err)
-	}
-	cutAt(t, open, t0.Add(4*time.Minute))
-	ws, bs := walks(t, open)
-	if ws[0].ID != alone.ID || len(bs) != 0 {
-		t.Fatalf("the search went on after a merge was delivered: %+v", ws[0])
-	}
-	done, _ := open.inventory.PlanByID(ctx, alone.ID)
-	if len(done.Delivery.Merges) != 2 || !sameMerge(done.Delivery.Merges[0], inventory.PlanMerge{Repository: "novox/mesh-catalog",
-		Commit: oldest.Commit, Carried: middle.Commit}) {
-		t.Fatalf("the oldest merge is not answered by the walk that delivered the one after it: %+v", done.Delivery.Merges)
-	}
-	// A stopped walk starts no search: a person ended it.
-	hear(t, open, catalogueMerge("dddd0004", "app", t0.Add(5*time.Minute)), t0.Add(5*time.Minute))
-	hear(t, open, catalogueMerge("eeee0005", "notes", t0.Add(5*time.Minute+time.Second)), t0.Add(5*time.Minute+time.Second))
-	cutAt(t, open, t0.Add(8*time.Minute))
-	ws, _ = walks(t, open)
-	if _, err := stopWalk(ctx, open.inventory, ws[0].ID, "mesh-delivery for jochen", "not now"); err != nil {
-		t.Fatal(err)
-	}
-	cutAt(t, open, t0.Add(9*time.Minute))
-	if again, _ := walks(t, open); again[0].ID != ws[0].ID {
-		t.Fatalf("a stopped walk's earlier merge was walked alone: %+v", again[0])
-	}
-}
-
-func TestAGroupsOrderBecomesTiersInsideTheWalk(t *testing.T) {
-	for _, grouped := range []bool{true, false} {
-		open := windowed(t)
-		everyHeadWaits(t)
-		asksWithPaths(t)
-		ctx := t.Context()
-		for _, m := range []string{"mesh-host"} {
-			if err := open.inventory.RegisterModule(ctx, catalogue.Manifest{Module: m, Version: "1"},
-				inventory.Source{Repository: "novox/" + m, Seat: "git", Ref: "main", BuiltFrom: "c0", Head: "c0"}); err != nil {
-				t.Fatal(err)
-			}
-		}
-		host := repoMerge("mesh-host", "h1", t0)
-		ctl := repoMerge("mesh-controller", "k1", t0.Add(time.Second))
-		host.Head, ctl.Head = "feat/together", "feat/together"
-		if !grouped {
-			ctl.Head = "feat/alone"
-		}
-		hear(t, open, ctl, t0.Add(2*time.Second))
-		hear(t, open, host, t0.Add(3*time.Second))
-		cutAt(t, open, t0.Add(2*time.Minute))
-		ws, _ := walks(t, open)
-		if len(ws) != 1 {
-			t.Fatalf("%d walks", len(ws))
-		}
-		tiers := ws[0].Tiers
-		if grouped {
-			if len(tiers) != 2 || !slices.Equal(tiers[0], []string{"mesh-host"}) ||
-				!slices.Equal(tiers[1], []string{"mesh-controller"}) {
-				t.Fatalf("the group's order is not the walk's tiers: %v", tiers)
-			}
-		} else if len(tiers) != 1 {
-			t.Fatalf("two merges of no group were ordered: %v", tiers)
-		}
-	}
-}
-
-func TestABatchSurvivesARestart(t *testing.T) {
-	open := windowed(t)
-	groupsWaiting(t, "feat/both")
-	asksWithPaths(t)
-	hear(t, open, fromHead(repoMerge("one", "c1", t0), "feat/both"), t0)
-	hear(t, open, fromHead(repoMerge("two", "c2", t0.Add(30*time.Second)), "feat/both"), t0.Add(30*time.Second))
-
-	// A new controller: nothing of the first one's but the store.
-	again, err := openStores(t.Context())
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(again.Close)
-	hear(t, again, fromHead(repoMerge("one", "c1", t0), "feat/both"), t0.Add(60*time.Second)) // the bus hands it over again
-	cutAt(t, again, t0.Add(119*time.Second))
-	if ws, bs := walks(t, again); len(ws) != 0 || len(bs) != 1 || len(bs[0].Delivery.Merges) != 2 {
-		t.Fatalf("the restarted controller's batch: %d walk(s), %+v", len(ws), bs)
-	}
-	cutAt(t, again, t0.Add(120*time.Second))
-	ws, bs := walks(t, again)
-	if len(ws) != 1 || len(bs) != 0 || len(ws[0].Delivery.Merges) != 2 {
-		t.Fatalf("the restarted controller did not cut the batch at its window: %+v %+v", ws, bs)
-	}
-}
-
-func TestALateMergeOfAOneModuleRepositoryIsNamed(t *testing.T) {
-	open := windowed(t)
-	everyHeadWaits(t)
-	asksWithPaths(t)
-	ctx := t.Context()
-	c2 := repoMerge("one", "c2", t0.Add(-50*time.Second))
-	hear(t, open, c2, t0)
-	cutAt(t, open, t0.Add(2*time.Minute))
-	ws, _ := walks(t, open)
-	w := ws[0]
-	w.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &w); err != nil {
-		t.Fatal(err)
-	}
-	hear(t, open, repoMerge("one", "c1", t0.Add(-60*time.Second)), t0.Add(15*time.Minute))
-	got, _ := open.inventory.PlanByID(ctx, w.ID)
-	if len(got.Delivery.Merges) != 2 || !sameMerge(got.Delivery.Merges[0], inventory.PlanMerge{Repository: "novox/one",
-		Commit: "c1", Carried: "c2"}) {
-		t.Fatalf("the late merge was not named by the walk that carried it: %+v", got.Delivery.Merges)
-	}
-
-	// A walk of two that built only two: a late merge of one is not its to name.
-	hear(t, open, repoMerge("two", "d2", t0.Add(16*time.Minute)), t0.Add(16*time.Minute))
-	cutAt(t, open, t0.Add(18*time.Minute))
-	ws, _ = walks(t, open)
-	w = ws[0]
-	delete(w.Modules, "two")
-	w.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &w); err != nil {
-		t.Fatal(err)
-	}
-	hear(t, open, repoMerge("two", "d1", t0.Add(15*time.Minute)), t0.Add(20*time.Minute))
-	if got, _ := open.inventory.PlanByID(ctx, w.ID); len(got.Delivery.Merges) != 1 {
-		t.Fatalf("a walk that never built what the late merge moves named it: %+v", got.Delivery.Merges)
-	}
-	if _, bs := walks(t, open); len(bs) != 1 || bs[0].Delivery.Merges[0].Commit != "d1" {
-		t.Fatalf("the late merge did not join the next batch: %+v", bs)
-	}
-}
-
-func TestAWalkLetGoBesideAStartedOneStartsOnceItEnded(t *testing.T) {
-	open := windowed(t)
-	asked := asksWithPaths(t)
-	ctx := t.Context()
-	hear(t, open, repoMerge("one", "c1", t0), t0)
-	cutAt(t, open, t0.Add(2*time.Minute))
-	started, _ := walks(t, open)
-	waiting := inventory.Plan{ID: "plan-waiting", Repository: "novox/one", Branch: "main", Commit: "d1", Created: t0,
-		State: inventory.PlanBuilding, Tiers: [][]string{{"one"}}, Modules: map[string]*inventory.PlanModule{"one": {}},
-		Delivery: &inventory.PlanDelivery{Awaits: catalogue.DeliverySeat}}
-	if err := open.inventory.SavePlan(ctx, &waiting); err != nil {
-		t.Fatal(err)
-	}
-	if _, err := letGo(ctx, open.inventory, waiting.ID, catalogue.DeliverySeat, "its turn"); err != nil {
-		t.Fatalf("the word was refused beside %s: %v", started[0].ID, err)
-	}
-	before := len(*asked)
-	advanceHeld(ctx, open)
-	got, _ := open.inventory.PlanByID(ctx, waiting.ID)
-	if len(*asked) != before || !strings.Contains(got.Note, "starts once "+started[0].ID) {
-		t.Fatalf("a walk let go beside a started one asked (%d → %d) or does not say it waits: %q", before, len(*asked), got.Note)
-	}
-	// Read as a wait, an hour on: its note on the line, never LATE, and no tier of it late for S3.
-	later := time.Now().Add(time.Hour)
-	if line := planLine(got, later); !strings.Contains(line, "starts once "+started[0].ID) || strings.Contains(line, "LATE") {
-		t.Fatalf("a deferred walk reads %q", line)
-	}
-	facts, _, err := gatherPlans(ctx, open.inventory, later, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	for _, f := range facts {
-		if f.id == got.ID {
-			t.Fatalf("a deferred walk is watched as a tier running late: %+v", f)
-		}
-	}
-	done := started[0]
-	done.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &done); err != nil {
-		t.Fatal(err)
-	}
-	advanceHeld(ctx, open)
-	if len(*asked) != before+1 {
-		t.Fatalf("the walk did not start once the started one ended: asked %v", *asked)
-	}
-}
-
-func TestAMergeOnTheControllersPathNeverSharesABatch(t *testing.T) {
-	open := windowed(t)
-	everyHeadWaits(t)
-	asked := asksWithPaths(t)
-	ctx := t.Context()
-	if err := open.inventory.RegisterModule(ctx, catalogue.Manifest{Module: "mesh-delivery", Version: "1",
-		Claims: []catalogue.Claim{{Name: catalogue.DeliverySeat, Scope: catalogue.ScopeMesh}}},
-		inventory.Source{Repository: "novox/mesh-catalog", Seat: "git", Path: "modules/mesh-delivery", Ref: "main",
-			BuiltFrom: "c0", Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-	if _, err := open.inventory.Assign(ctx, "anchor", "mesh-delivery"); err != nil {
-		t.Fatal(err)
-	}
-	hear(t, open, catalogueMerge("aaaa0001", "app", t0), t0)
-	hear(t, open, repoMerge("mesh-controller", "k1", t0.Add(10*time.Second)), t0.Add(10*time.Second))
-	hear(t, open, catalogueMerge("bbbb0002", "notes", t0.Add(20*time.Second)), t0.Add(20*time.Second))
-	_, bs := walks(t, open)
-	var ownBatch, catalogueBatch inventory.Plan
-	for _, b := range bs {
-		if b.OwnPath() {
-			ownBatch = b
-		} else {
-			catalogueBatch = b
-		}
-	}
-	if len(bs) != 2 || ownBatch.ID == "" || catalogueBatch.ID == "" || len(catalogueBatch.Delivery.Merges) != 2 ||
-		len(ownBatch.Delivery.Merges) != 1 {
-		t.Fatalf("a controller merge and two catalogue merges in one window: %+v", bs)
-	}
-	if !strings.Contains(batchWords(ownBatch, t0.Add(30*time.Second)), "own path") {
-		t.Fatalf("the own-path batch does not say so: %q", batchWords(ownBatch, t0.Add(30*time.Second)))
-	}
-	// Both windows closed, the controller's batch is cut first and starts; the catalogue batch queues behind it,
-	// is cut when the controller's walk ended, and waits for its word with both merges.
-	cutAt(t, open, t0.Add(2*time.Minute))
-	ws, bs := walks(t, open)
-	if len(ws) != 1 || ws[0].Waiting() || ws[0].CommitOf("novox/mesh-controller") != "k1" {
-		t.Fatalf("the controller's batch was not cut first into a started walk: %+v", ws)
-	}
-	ownWalk := ws[0]
-	for _, m := range []string{"app", "notes"} {
-		if _, in := ownWalk.Modules[m]; in {
-			t.Fatalf("the controller's walk builds %s, a catalogue module: it skipped its turn", m)
-		}
-	}
-	if len(bs) != 1 || bs[0].State != inventory.PlanQueued || bs[0].Delivery.Batch.Behind != ownWalk.ID || bs[0].OwnPath() {
-		t.Fatalf("the catalogue batch does not queue behind the controller's walk: %+v", bs)
-	}
-	ownWalk.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &ownWalk); err != nil {
-		t.Fatal(err)
-	}
-	cutAt(t, open, t0.Add(3*time.Minute))
-	ws, bs = walks(t, open)
-	if len(bs) != 0 || ws[0].ID != catalogueBatch.ID || !ws[0].Waiting() || len(ws[0].Delivery.Merges) != 2 {
-		t.Fatalf("the catalogue batch was not cut into a waiting walk once the controller's ended: %+v %+v", ws, bs)
-	}
-	for _, m := range []string{"app", "notes"} {
-		if _, in := ws[0].Modules[m]; !in {
-			t.Fatalf("the catalogue walk does not build %s: %v", m, ws[0].Modules)
-		}
-	}
-	for _, a := range *asked {
-		if a[1] == "modules/app" || a[1] == "modules/notes" {
-			t.Fatalf("a catalogue module was asked without the word: %v", *asked)
-		}
-	}
-
-	// A catalogue walk waiting for its word when an own-path batch is cut keeps waiting beside the own-path
-	// walk, is not folded into it, and its word is taken meanwhile: it starts once the own-path walk ended.
-	catalogueWalk := ws[0]
-	hear(t, open, repoMerge("mesh-controller", "k2", t0.Add(4*time.Minute)), t0.Add(4*time.Minute))
-	cutAt(t, open, t0.Add(6*time.Minute))
-	ws, _ = walks(t, open)
-	kept, _ := open.inventory.PlanByID(ctx, catalogueWalk.ID)
-	if !kept.Waiting() || ws[0].CommitOf("novox/mesh-controller") != "k2" || ws[0].Waiting() {
-		t.Fatalf("the waiting catalogue walk was not kept waiting beside the controller's walk: %s %+v", kept.State, ws)
-	}
-	if _, in := ws[0].Modules["app"]; in {
-		t.Fatalf("the controller's walk folded the waiting catalogue walk in: %v", ws[0].Modules)
-	}
-	if _, err := letGo(ctx, open.inventory, catalogueWalk.ID, catalogue.DeliverySeat, "its turn"); err != nil {
-		t.Fatal(err)
-	}
-	before := len(*asked)
-	advanceHeld(ctx, open)
-	if len(*asked) != before {
-		t.Fatalf("the catalogue walk started beside the controller's: asked %v", (*asked)[before:])
-	}
-	own2 := ws[0]
-	own2.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &own2); err != nil {
-		t.Fatal(err)
-	}
-	advanceHeld(ctx, open)
-	if len(*asked) < before+1 || (*asked)[before][1] != "modules/app" {
-		t.Fatalf("the catalogue walk did not start once the controller's ended: %v", (*asked)[before:])
-	}
-}
-
-func TestALateCatalogueMergeIsNotAnsweredByAnOwnPathWalk(t *testing.T) {
-	open := windowed(t)
-	everyHeadWaits(t)
-	asksWithPaths(t)
-	ctx := t.Context()
-	for _, m := range []struct {
-		module string
-		claims []catalogue.Claim
-	}{
-		{"nats", nil},
-		{"mesh-delivery", []catalogue.Claim{{Name: catalogue.DeliverySeat, Scope: catalogue.ScopeMesh}}},
-	} {
-		if err := open.inventory.RegisterModule(ctx, catalogue.Manifest{Module: m.module, Version: "1", Claims: m.claims},
-			inventory.Source{Repository: "novox/mesh-catalog", Seat: "git", Path: "modules/" + m.module, Ref: "main",
-				BuiltFrom: "c0", Head: "c0"}); err != nil {
-			t.Fatal(err)
-		}
-	}
-	if _, err := open.inventory.Assign(ctx, "anchor", "mesh-delivery"); err != nil {
-		t.Fatal(err)
-	}
-	mixed := link.SourceMoved{Owner: "novox", Repo: "mesh-catalog", Base: "main", Commit: "m1xed", MergedAt: t0.Format(time.RFC3339Nano),
-		Paths: []string{"modules/nats/module.json", "modules/app/module.json"}, ModuleDirs: []string{"modules/nats", "modules/app"},
-		ModuleDirsSaid: true}
-	hear(t, open, mixed, t0.Add(time.Second))
-	cutAt(t, open, t0.Add(2*time.Minute))
-	ws, _ := walks(t, open)
-	if len(ws) != 1 || ws[0].Waiting() {
-		t.Fatalf("the mixed merge's walk waited, or was not cut: %+v", ws)
-	}
-	done := ws[0]
-	done.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &done); err != nil {
-		t.Fatal(err)
-	}
-	hear(t, open, catalogueMerge("ear1ier", "app", t0.Add(-30*time.Second)), t0.Add(3*time.Minute))
-	got, _ := open.inventory.PlanByID(ctx, done.ID)
-	_, bs := walks(t, open)
-	if len(got.Delivery.Merges) != 1 || len(bs) != 1 || bs[0].OwnPath() || bs[0].Delivery.Merges[0].Commit != "ear1ier" {
-		t.Fatalf("the late catalogue merge was answered by the own-path walk (%+v) rather than the next catalogue batch (%+v)",
-			got.Delivery.Merges, bs)
-	}
-}

cmd/mesh-controller/batches_test.go

@@ -1,293 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"os"
-	"slices"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The suite's tests of a merge, but for the merge window's own (this file's), plan the merge as it is heard: a
-// window of nothing closes at once, so a merge with no walk open is cut into its walk at once, as every merge
-// was planned before novox/hq ADR 0276. The window's tests set it through the controller's settings.
-func init() {
-	mergeWindowDefault = 0
-	// No forge in a test: no manifest is found at any commit, so a merge draws no edge of the manifests' change
-	// (delivery_edges.go). A test that wants some replaces these (forgeHolding).
-	manifestAt = func(context.Context, string, string, string, string) (catalogue.Manifest, bool, error) {
-		return catalogue.Manifest{}, false, nil
-	}
-	parentOf = func(context.Context, string, string, string) (string, error) { return "", nil }
-}
-
-// windowed is a mesh whose controller's settings give a merge window of 90 seconds and at most 10 minutes, as its
-// settings file says them, and
-// modules built from the catalogue (app, notes) and from three repositories of their own.
-
-// t0 is the moment a test's clock starts: merges are dated by it, and heard after it.
-var t0 = time.Now().UTC().Truncate(time.Second)
-
-// catalogueMerge is a merge of the catalogue changing one module's directory, made at a moment, from a pull
-// request's head branch of its own, as the forge announces every merge. Whether its head names a delivery group
-// with a member still to merge is mesh-delivery's word, which windowed stubs as no group at all (noGroups); a test
-// whose merges wait for the window as a group's says so (groupsWaiting).
-func catalogueMerge(commit, module string, made time.Time) link.SourceMoved {
-	return link.SourceMoved{Owner: "novox", Repo: "mesh-catalog", Base: "main", Head: "pr/" + commit, Commit: commit,
-		MergedAt: made.Format(time.RFC3339Nano), Paths: []string{"modules/" + module + "/module.json"},
-		ModuleDirs: []string{"modules/" + module}, ModuleDirsSaid: true}
-}
-
-// repoMerge is a merge of a repository of one module's own, from a head branch of its own (catalogueMerge).
-func repoMerge(repo, commit string, made time.Time) link.SourceMoved {
-	return link.SourceMoved{Owner: "novox", Repo: repo, Base: "main", Head: "pr/" + commit, Commit: commit,
-		MergedAt: made.Format(time.RFC3339Nano), Paths: []string{"main.go"}}
-}
-
-// noGroups stubs mesh-delivery's word on groups for a test: no head names a group.
-func noGroups(t *testing.T) {
-	t.Helper()
-	was := deliveryGroupOf
-	deliveryGroupOf = func(context.Context, bool, string) ([]groupMember, bool, error) { return nil, false, nil }
-	t.Cleanup(func() { deliveryGroupOf = was })
-}
-
-// groupsWaiting stubs mesh-delivery's word on groups for a test of the merge window's own timing: each head named
-// is one whose group mesh-delivery cannot say, so a merge from it waits for the window (ADR 0306 decision 2) and
-// nothing holds the batch open; every other head names no group. A group with a member still to merge, which holds
-// its batch open however long it takes (ADR 0418 clause 3), is groupStates'.
-func groupsWaiting(t *testing.T, heads ...string) {
-	t.Helper()
-	was := deliveryGroupOf
-	deliveryGroupOf = func(_ context.Context, _ bool, head string) ([]groupMember, bool, error) {
-		if slices.Contains(heads, head) {
-			return nil, false, errors.New("the test's mesh-delivery does not say")
-		}
-		return nil, false, nil
-	}
-	t.Cleanup(func() { deliveryGroupOf = was })
-}
-
-// everyHeadWaits stubs mesh-delivery's word on groups for a test whose merges each wait for the window as they did
-// before novox/hq ADR 0304: mesh-delivery cannot say any head's group.
-func everyHeadWaits(t *testing.T) {
-	t.Helper()
-	was := deliveryGroupOf
-	deliveryGroupOf = func(context.Context, bool, string) ([]groupMember, bool, error) {
-		return nil, false, errors.New("the test's mesh-delivery does not say")
-	}
-	t.Cleanup(func() { deliveryGroupOf = was })
-}
-
-// groupStates stubs mesh-delivery's word on one group: its members and their states, which a test changes as the
-// members merge.
-func groupStates(t *testing.T, head string, states map[string]string) {
-	t.Helper()
-	groupStatesFrom(t, head, states, true)
-}
-
-// groupStatesFrom is groupStates for a mesh-delivery that does (composed) or does not yet say the group's gate is the
-// composed check's: only the first holds the group's batch open for its last member.
-func groupStatesFrom(t *testing.T, head string, states map[string]string, composed bool) {
-	t.Helper()
-	was := deliveryGroupOf
-	deliveryGroupOf = func(_ context.Context, _ bool, asked string) ([]groupMember, bool, error) {
-		if asked != head {
-			return nil, false, nil
-		}
-		var members []groupMember
-		for repository, state := range states {
-			members = append(members, groupMember{Repository: repository, State: state, Composed: composed})
-		}
-		return members, true, nil
-	}
-	t.Cleanup(func() { deliveryGroupOf = was })
-}
-
-// fromHead is a merge from a head branch a test names: merges from one head are members of one delivery group,
-// related by it (novox/hq ADR 0304 decision 1), so they share a batch whatever else they share.
-func fromHead(m link.SourceMoved, head string) link.SourceMoved {
-	m.Head = head
-	return m
-}
-
-// lone is a merge that names no head: known to be no delivery group's, it waits for no window unless it is
-// related to a batch assembling (ADR 0304 decision 1).
-func lone(m link.SourceMoved) link.SourceMoved {
-	m.Head = ""
-	return m
-}
-
-// hear is a merge heard at a moment.
-
-// cutAt is the cutter looking at a moment.
-
-// walks is every plan record that is a walk, newest first, and the batches not yet cut.
-func walks(t *testing.T, open *stores) (walks, batches []inventory.Plan) {
-	t.Helper()
-	recent, err := open.inventory.RecentPlans(t.Context(), 50)
-	if err != nil {
-		t.Fatal(err)
-	}
-	for _, p := range recent {
-		if p.Batch() {
-			batches = append(batches, p)
-		} else {
-			walks = append(walks, p)
-		}
-	}
-	return walks, batches
-}
-
-// The replay of issue 362: two catalogue merges 18 seconds apart are one batch, cut once into one walk at the
-// later commit, which names both merges — the earlier carried by the later.
-
-// Merges of three repositories in one window are one walk, one commit for each.
-
-// Each merge restarts the window: a merge at second 80 keeps the batch open until second 170; the window
-// closes at most ten minutes after its first merge however busy.
-
-// `plans` lists the batch being assembled first, in the operator's words: how long is left, when at the latest,
-// what is grouped, and that the plan is not yet calculated. It says so on the bus as plan-moved, too.
-
-// captured is what a command printed.
-
-// A merge heard during a walk it is related to (the same repository, issue 973) joins the next batch, which is
-// cut when the walk ends; the walk that started is never superseded (ADR 0276 decision 4, ADR 0407 decision 4).
-
-// A walk waiting for its delivery's word is folded into the next batch's walk, which answers its merges; it
-// names the walk that took it over.
-
-// A merge heard after a later merge of its branch was walked is answered by that walk when it builds all it
-// moves — named at once on a walk done — and joins the next batch when it does not.
-
-// A failed walk marks nothing delivered: its earlier merges are walked alone, on their own commit, the newest
-// first; the first delivered answers the older ones, and the search stops.
-
-// A delivery group's order holds inside the walk (ADR 0249 unchanged): merges of two repositories from one head
-// branch name, the node-engine's before the controller's, are tiered so; without the group, one tier.
-
-// A restarted controller resumes the window where it stood: the batch, its merges and their times are in the
-// store, a merge handed over again is not doubled, and the batch is cut when its window closes.
-
-// The window's settings reach the controller in its settings file, read at every look; one that says no
-// duration, or no file, is the default.
-func TestTheWindowIsTheControllersSetting(t *testing.T) {
-	file := t.TempDir() + "/merge-window.json"
-	t.Setenv(mergeWindowFileVar, file)
-	for _, c := range []struct {
-		content        string
-		window, atMost time.Duration
-	}{
-		{`{"merge-window": "60s", "merge-window-at-most": "5m"}`, time.Minute, 5 * time.Minute},
-		{`{"merge-window": 30, "merge-window-at-most": ""}`, 30 * time.Second, mergeWindowAtMostDefault},
-		{`{"merge-window": "soon"}`, mergeWindowDefault, mergeWindowAtMostDefault},
-	} {
-		if err := os.WriteFile(file, []byte(c.content), 0o600); err != nil {
-			t.Fatal(err)
-		}
-		if w, m := mergeWindowOf(); w != c.window || m != c.atMost {
-			t.Errorf("%s reads as %s and %s, want %s and %s", c.content, w, m, c.window, c.atMost)
-		}
-	}
-	t.Setenv(mergeWindowFileVar, file+".gone")
-	if w, m := mergeWindowOf(); w != mergeWindowDefault || m != mergeWindowAtMostDefault {
-		t.Errorf("no file reads as %s and %s", w, m)
-	}
-}
-
-// S16 names every merge a waiting walk answers, never one commit a supersession may have ended (issue 362).
-func TestAWaitingWalkNamesTheMergesItAnswers(t *testing.T) {
-	f := calm(t0)
-	f.waits = []waitFacts{{id: "plan-2", repository: "novox/mesh-catalog", commit: "48bda475dunst", awaits: "mesh-delivery",
-		since: t0.Add(-31 * time.Minute), merges: []inventory.PlanMerge{
-			{Repository: "novox/mesh-catalog", Commit: "553b7191claude", Carried: "48bda475dunst"},
-			{Repository: "novox/mesh-catalog", Commit: "48bda475dunst"}}}}
-	got := watchWaits(f)
-	if len(got) != 1 || !strings.Contains(got[0].Summary, "novox/mesh-catalog@553b7191") ||
-		!strings.Contains(got[0].Summary, "novox/mesh-catalog@48bda475") {
-		t.Fatalf("the waiting walk does not name both merges: %+v", got)
-	}
-}
-
-// A merge heard after a later merge of its branch was cut is named by that walk however its modules read since
-// the cut, in a repository of one module (review of this change); a walk that never built what it moves names
-// nothing, and the merge joins the next batch.
-
-// A related walk waits for the delivery's word too: a waiting walk let go beside a started one it is related to
-// (the same repository, issue 973) takes the word and starts once that one ended, asking nothing before.
-
-// A file a merge of the batch removed and a later one brought back is not removed; one removed last is.
-func TestARemovedFileIsTheLastMergesWord(t *testing.T) {
-	ev := func(commit string, paths, removed []string) inventory.BatchedMerge {
-		m := link.SourceMoved{Owner: "novox", Repo: "one", Base: "main", Commit: commit, Paths: paths, Removed: removed}
-		b, _ := json.Marshal(m)
-		return inventory.BatchedMerge{Repository: "novox/one", Branch: "main", Commit: commit, Event: b,
-			Merged: t0.Add(time.Duration(len(commit)) * time.Second)}
-	}
-	got := combinedMerges([]inventory.BatchedMerge{
-		ev("a", []string{"x/module.json", "y/module.json"}, []string{"x/module.json", "y/module.json"}),
-		ev("bb", []string{"x/module.json"}, nil),
-		ev("ccc", []string{"z.go"}, nil)})
-	if len(got) != 1 || got[0].Commit != "ccc" || !slices.Equal(got[0].Removed, []string{"y/module.json"}) ||
-		len(got[0].Paths) != 3 {
-		t.Fatalf("combined as %+v", got)
-	}
-}
-
-// A merge on the controller's own path never shares a batch with one that waits for mesh-delivery's word
-// (decided during the build, 2026-10-10): the two are batches of their own, cut one after the other; a walk on
-// the own path folds no waiting catalogue walk but batches its merges again behind it; the catalogue's walk
-// still waits for the word, so no catalogue delivery skips its turn.
-
-// `plans` names a walk by what it moves (asked by the operator, 2026-10-10): the repository's pull request and
-// title, the modules it moves and the machines running them, then the state words; a record naming no pull
-// request is named by its commit, and a title is cut at fifty runes.
-func TestAPlanLineNamesWhatItMoves(t *testing.T) {
-	now := time.Date(2026, 10, 10, 12, 0, 0, 0, time.UTC)
-	p := inventory.Plan{ID: "plan-1", Repository: "novox/mesh-catalog", Branch: "main", Commit: "c1c1c1c1c1",
-		State: inventory.PlanBuilding, Tiers: [][]string{{"messenger", "telegram"}}, TierEntered: now.Add(-2 * time.Minute),
-		Modules: map[string]*inventory.PlanModule{"messenger": {State: "asked"}, "telegram": {State: "asked"}},
-		Commits: []inventory.PlanCommit{{Repository: "novox/mesh-catalog", Branch: "main", Commit: "c1c1c1c1c1"}},
-		Delivery: &inventory.PlanDelivery{Merges: []inventory.PlanMerge{{Repository: "novox/mesh-catalog",
-			Commit: "c1c1c1c1c1", Number: 175, Title: "a tap shows its outcome", Moves: []string{"telegram", "messenger"}}}}}
-	running := func(module string) []string {
-		if module == "messenger" || module == "telegram" {
-			return []string{"novox"}
-		}
-		return nil
-	}
-	if got, want := planLineOn(p, now, pauseView{}, tierAtLeast, running),
-		"mesh-catalog #175 a tap shows its outcome · messenger, telegram → novox · tier 1 of 1, building for 2m0s"; got != want {
-		t.Fatalf("the line reads %q, want %q", got, want)
-	}
-	if got := planLine(p, now); !strings.HasPrefix(got, "mesh-catalog #175 a tap shows its outcome · messenger, telegram · tier") {
-		t.Fatalf("without the machines the line reads %q", got)
-	}
-	old := p
-	old.Commits, old.Delivery = nil, nil
-	if got := planLine(old, now); !strings.HasPrefix(got, "mesh-catalog c1c1c1c1 · tier 1 of 1") {
-		t.Fatalf("a record naming no pull request reads %q", got)
-	}
-	long := p
-	long.Delivery.Merges[0].Title = strings.Repeat("abcdefghij", 6)
-	if got := planHeadline(long, nil); !strings.Contains(got, "#175 "+strings.Repeat("abcdefghij", 4)+"abcdefghi…") {
-		t.Fatalf("a long title is not cut at fifty runes: %q", got)
-	}
-}
-
-// sameMerge compares what a walk names of a merge: its repository, commit and the commit carrying it.
-func sameMerge(a, b inventory.PlanMerge) bool {
-	return a.Repository == b.Repository && a.Commit == b.Commit && a.Carried == b.Carried
-}
-
-// A catalogue merge heard after a later merge of its branch was walked without the word (a merge that touched
-// the bus too, on the controller's own path) is not answered by that walk while the delivery seat has a holder:
-// its delivery would skip its turn. It joins the next catalogue batch.

cmd/mesh-controller/batches_watch.go

@@ -1,153 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// **Every wait of a batch has a bound and a condition** (novox/hq ADR 0276 decision 9): a batch still
-// assembling a minute past its maximum while no walk is open is a cut the controller failed to make (S18),
-// and a batch waiting behind an open walk longer than that walk's bound waits on a walk gone wrong (S19).
-
-// The kinds S18 and S19 raise.
-const (
-	kindBatchNotCut     = "batch-not-cut"
-	kindBatchBehindWalk = "batch-behind-walk"
-	// kindGroupNotMerged is raised for a group whose last member has not merged by the merge window's maximum after
-	// its first (novox/hq ADR 0418 clause 3).
-	kindGroupNotMerged = "group-not-merged"
-)
-
-// batchFacts is one batch not yet cut, as the watchdogs read it.
-type batchFacts struct {
-	id, state, grouped string
-	// atMost is when its window closes at the latest; closed when it closed.
-	atMost, closed time.Time
-	// behind is the open walk it waits behind, and walkBound that walk's bound: a tier's bound for each of its
-	// tiers.
-	behind    string
-	walkBound time.Duration
-	// holds are the groups the batch is held for, by head, with why; created is when the batch was made, the first
-	// merge of the group heard; atMostWindow is the maximum a window may take (the controller's setting).
-	holds        map[string]string
-	created      time.Time
-	atMostWindow time.Duration
-}
-
-// gatherBatches is every batch not yet cut, with the bound of the walk it waits behind.
-func gatherBatches(ctx context.Context, inv *inventory.Inventory, now time.Time) ([]batchFacts, error) {
-	batches, err := inv.Batches(ctx)
-	if err != nil || len(batches) == 0 {
-		return nil, err
-	}
-	bounds, err := measuredTierBounds(ctx, inv, now)
-	if err != nil {
-		return nil, err
-	}
-	var out []batchFacts
-	for _, b := range batches {
-		_, atMostWindow := mergeWindowOf()
-		f := batchFacts{id: b.ID, state: b.State, grouped: groupedWords(b), created: b.Created, atMostWindow: atMostWindow}
-		if w := b.Delivery; w != nil && w.Batch != nil {
-			f.holds = w.Batch.Holds
-			f.atMost, f.closed, f.behind = w.Batch.AtMost, w.Batch.ClosesAt, w.Batch.Behind
-			if f.atMost.Before(f.closed) {
-				f.closed = f.atMost
-			}
-			if w.Batch.CutAtOnce && !b.Created.IsZero() {
-				// Its window closed when it was made, which is its latest too (ADR 0304 decision 1).
-				f.atMost, f.closed = b.Created, b.Created
-			}
-		}
-		if f.behind != "" {
-			if walk, err := inv.PlanByID(ctx, f.behind); err == nil {
-				f.walkBound = bounds.of(walk.Repository) * time.Duration(max(1, len(walk.Tiers)))
-			}
-		}
-		out = append(out, f)
-	}
-	return out, nil
-}
-
-// watchBatchesNotCut is S18: a batch still assembling a minute past its maximum, while no walk is open.
-func watchBatchesNotCut(f *signalFacts) []conditions.Observation {
-	var out []conditions.Observation
-	for _, b := range f.batches {
-		if b.state != inventory.PlanAssembling || b.atMost.IsZero() || f.now.Sub(b.atMost) <= batchLateAfter ||
-			len(b.holds) > 0 { // a batch held for a group waits on a member, which has its own condition
-			continue
-		}
-		late := f.now.Sub(b.atMost)
-		out = append(out, conditions.Observation{Scope: conditions.ScopePlan, ID: b.id, Kind: kindBatchNotCut,
-			Severity: conditions.Warning,
-			Summary: fmt.Sprintf("the batch %s is still assembling %s past its latest close (%s), with no walk open: "+
-				"the controller did not cut it; grouped: %s", b.id, ago(late), b.atMost.UTC().Format(time.RFC3339), b.grouped),
-			Said:     fmt.Sprintf("assembling since %s past its maximum", ago(late)),
-			Headline: "Merged changes are not being delivered",
-			Explanation: fmt.Sprintf("Merges collected for one delivery should have been planned %s ago and were not. "+
-				"Nothing is lost; the mesh keeps them until it plans them.", humanDuration(late)),
-			Resolved: "Merged changes are being delivered again"})
-	}
-	return out
-}
-
-// watchBatchesBehind is S19: a batch waiting behind an open walk longer than that walk's bound, naming it.
-func watchBatchesBehind(f *signalFacts) []conditions.Observation {
-	var out []conditions.Observation
-	for _, b := range f.batches {
-		if b.state != inventory.PlanQueued || b.behind == "" || b.walkBound <= 0 || f.now.Sub(b.closed) <= b.walkBound {
-			continue
-		}
-		in := f.now.Sub(b.closed)
-		out = append(out, conditions.Observation{Scope: conditions.ScopePlan, ID: b.id, Kind: kindBatchBehindWalk,
-			Severity: conditions.Warning,
-			Summary: fmt.Sprintf("the batch %s has waited %s behind the walk %s, longer than that walk's bound (%s); "+
-				"grouped: %s; `plans %s` says where that walk stands", b.id, ago(in), b.behind, ago(b.walkBound),
-				b.grouped, b.behind),
-			Said:     fmt.Sprintf("queued behind %s for %s", b.behind, ago(in)),
-			Headline: "Merged changes wait behind a slow delivery",
-			Explanation: fmt.Sprintf("Merges collected for the next delivery have waited %s for the delivery before "+
-				"them, which is taking longer than it should. Nothing is lost.", humanDuration(in)),
-			Resolved: "Merged changes no longer wait behind a slow delivery"})
-	}
-	return out
-}
-
-// watchGroupsNotMerged is the condition of a batch held for a group whose last member has not merged by the merge
-// window's maximum after the first member merged, naming the member and why (novox/hq ADR 0418 clause 3): nothing of
-// the group is delivered while it waits.
-func watchGroupsNotMerged(f *signalFacts) []conditions.Observation {
-	var out []conditions.Observation
-	for _, b := range f.batches {
-		if len(b.holds) == 0 || b.created.IsZero() || f.now.Sub(b.created) <= b.atMostWindow {
-			continue
-		}
-		heads := make([]string, 0, len(b.holds))
-		for h := range b.holds {
-			heads = append(heads, h)
-		}
-		sort.Strings(heads)
-		var why []string
-		for _, h := range heads {
-			why = append(why, b.holds[h])
-		}
-		waited := f.now.Sub(b.created)
-		out = append(out, conditions.Observation{Scope: conditions.ScopePlan, ID: b.id,
-			Kind: kindGroupNotMerged, Severity: conditions.Warning,
-			Summary: fmt.Sprintf("%s; its first member merged %s ago, past the merge window's maximum (%s), and nothing "+
-				"of the group is delivered while it waits (batch %s)", strings.Join(why, "; "), ago(waited), ago(b.atMostWindow), b.id),
-			Said:     "a group waits for a member that has not merged",
-			Headline: "A change waits for the rest of its group to merge",
-			Explanation: fmt.Sprintf("The changes of a group are delivered together, once the last one is merged. "+
-				"One has not merged in %s. Nothing is lost; the merged ones are kept and delivered with it.",
-				humanDuration(waited)),
-			Resolved: "The group's last change merged"})
-	}
-	return out
-}

cmd/mesh-controller/beside_test.go

@@ -1,108 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// An unrelated closed batch is cut into a walk beside an open one, and that walk asks its first tier at once
-// (issue 973, novox/hq ADR 0407 decision 4): a hotfix is never held by an unrelated delivery.
-func TestAnUnrelatedBatchWalksBesideAnOpenWalk(t *testing.T) {
-	open := windowed(t)
-	asksWithPaths(t)
-	ctx := t.Context()
-	hear(t, open, repoMerge("one", "c1", t0), t0)
-	cutAt(t, open, t0.Add(90*time.Second))
-	if ws, _ := walks(t, open); len(ws) != 1 || !ws[0].Open() {
-		t.Fatalf("the first walk is not open: %+v", ws)
-	}
-	heard := t0.Add(100 * time.Second)
-	hear(t, open, lone(repoMerge("two", "c2", heard)), heard)
-	advanceHeld(ctx, open)
-	ws, bs := walks(t, open)
-	if len(ws) != 2 || len(bs) != 0 {
-		t.Fatalf("%d walk(s) and %d batch(es); want the unrelated batch cut beside the open walk", len(ws), len(bs))
-	}
-	for _, w := range ws {
-		if !w.Open() || w.Waiting() || deferred(w) || !askedAny(w) {
-			t.Errorf("%s (%s) is not walking: open %v, deferred %v, asked %v, note %q", w.ID, w.Named(), w.Open(),
-				deferred(w), askedAny(w), w.Note)
-		}
-	}
-}
-
-// A closed batch related to an open walk is queued behind it with the reason, while one that shares nothing is
-// cut beside it; the walk that started is never superseded (ADR 0276 decision 4, issue 973).
-func TestARelatedBatchWaitsBehindTheOpenWalk(t *testing.T) {
-	open := windowed(t)
-	asksWithPaths(t)
-	ctx := t.Context()
-	hear(t, open, repoMerge("one", "c1", t0), t0)
-	cutAt(t, open, t0.Add(90*time.Second))
-	first := func() inventory.Plan { ws, _ := walks(t, open); return ws[len(ws)-1] }()
-	heard := t0.Add(100 * time.Second)
-	hear(t, open, lone(repoMerge("one", "c2", heard)), heard)
-	hear(t, open, lone(repoMerge("three", "c3", heard.Add(time.Second))), heard.Add(time.Second))
-	ws, bs := walks(t, open)
-	if len(ws) != 2 || len(bs) != 1 {
-		t.Fatalf("%d walk(s) and %d batch(es); want the unrelated merge walking and the related one queued", len(ws), len(bs))
-	}
-	b := bs[0]
-	words := batchWords(b, heard)
-	if b.State != inventory.PlanQueued || b.Delivery.Batch.Behind != first.ID || b.CommitOf("novox/one") != "c2" ||
-		!strings.Contains(words, "queued behind "+first.ID) || !strings.Contains(words, "both change novox/one") {
-		t.Fatalf("the related batch is %s, behind %q, reading %q", b.State, b.Delivery.Batch.Behind, words)
-	}
-	if got, _ := open.inventory.PlanByID(ctx, first.ID); !got.Open() {
-		t.Fatalf("the started walk was %s by the related merge", got.State)
-	}
-	first.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &first); err != nil {
-		t.Fatal(err)
-	}
-	cutAt(t, open, heard.Add(2*time.Second))
-	if _, bs := walks(t, open); len(bs) != 0 {
-		t.Fatalf("the queued batch was not cut once the walk it waited for ended: %+v", bs)
-	}
-}
-
-// A batch on the controller's own path never walks beside another walk, and nothing walks beside it, whatever
-// the two share (issue 973): it replaces the controller, so it goes alone.
-func TestAnOwnPathBatchNeverWalksBeside(t *testing.T) {
-	open := windowed(t)
-	asksWithPaths(t)
-	ctx := t.Context()
-	hear(t, open, repoMerge("one", "c1", t0), t0)
-	cutAt(t, open, t0.Add(90*time.Second))
-	ws, _ := walks(t, open)
-	first := ws[0]
-	heard := t0.Add(100 * time.Second)
-	hear(t, open, lone(repoMerge("mesh-controller", "k1", heard)), heard)
-	ws, bs := walks(t, open)
-	if len(ws) != 1 || len(bs) != 1 || !bs[0].OwnPath() || bs[0].State != inventory.PlanQueued ||
-		bs[0].Delivery.Batch.Behind != first.ID || !strings.Contains(batchWords(bs[0], heard), "own path") {
-		t.Fatalf("an own-path batch beside an open walk: %d walk(s), batches %+v", len(ws), bs)
-	}
-	first.State = inventory.PlanDone
-	if err := open.inventory.SavePlan(ctx, &first); err != nil {
-		t.Fatal(err)
-	}
-	cutAt(t, open, heard.Add(time.Second))
-	ws, _ = walks(t, open)
-	if len(ws) != 2 || !ws[0].Open() || ws[0].CommitOf("novox/mesh-controller") != "k1" {
-		t.Fatalf("the own-path batch was not cut once the walk ended: %+v", ws)
-	}
-	own := ws[0]
-	// Unrelated to the own-path walk by every footprint, a merge still waits for it.
-	later := heard.Add(time.Minute)
-	hear(t, open, lone(repoMerge("two", "c2", later)), later)
-	ws, bs = walks(t, open)
-	if len(ws) != 2 || len(bs) != 1 || bs[0].State != inventory.PlanQueued || bs[0].Delivery.Batch.Behind != own.ID {
-		t.Fatalf("a merge beside the own-path walk: %d walk(s), batches %+v", len(ws), bs)
-	}
-}

cmd/mesh-controller/bindings.go

@@ -1,140 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-// A binding to data moves only by a person (novox/hq ADR 0232, issue 273).
-//
-// The resolver keeps each consumer of a provision that keeps its data at the provider it was last
-// sent (catalogue/bound.go) and says what it would have moved. This is where that is said: on the
-// push that composed it, and by the self-check's D12 every run, as an urgent condition naming the
-// consumer, both providers and the pin that confirms the move.
-
-// The condition kinds of D12.
-const (
-	// kindBindingKept is a move the resolver refused: the consumer is still where its data is.
-	kindBindingKept = "binding-kept"
-	// kindBindingMoved is a consumer about to be sent another provider than the one on record with
-	// no pin naming it — what the resolver exists to make impossible, said if it ever is not.
-	kindBindingMoved = "binding-moved"
-	// kindBindingMoving is a move a pin asked for, not yet sent: a person's act, said so that the
-	// data is moved before the push that carries it.
-	kindBindingMoving = "binding-moving"
-)
-
-// probeBindingsID is the self-check's id for this probe, and the source of what it raises.
-const probeBindingsID = "D12"
-
-// keptObservation is the urgent condition for one refused move.
-func keptObservation(k catalogue.KeptBinding) conditions.Observation {
-	return conditions.Observation{Scope: conditions.ScopeMachine, ID: bindingID(k.Machine, k.Consumer, k.Provision),
-		Token: kindBindingKept, Kind: kindBindingKept, Machine: k.Machine, Also: otherMachines(k.Machine, k.Bound.Node, k.Would.Node),
-		Severity: conditions.Urgent, Resolver: conditions.ResolverOperator,
-		Summary: fmt.Sprintf("on %s, the mesh %s", k.Machine, k.String())}
-}
-
-func bindingID(machine, consumer, provision string) string {
-	return machine + "." + consumer + "." + provision
-}
-
-func otherMachines(machine string, nodes ...string) []string {
-	var out []string
-	seen := map[string]bool{machine: true}
-	for _, n := range nodes {
-		if n != "" && !seen[n] {
-			seen[n] = true
-			out = append(out, n)
-		}
-	}
-	return out
-}
-
-// reportKept says every move a machine's resolution refused, on the push composing it, and raises its
-// condition at once where this process keeps the conditions: a push is when a person is looking.
-func reportKept(ctx context.Context, plan catalogue.Resolution) {
-	for _, k := range plan.Kept {
-		fmt.Printf("%s: the mesh %s\n", plan.Node, k)
-		if conditionsFrom != nil {
-			o := keptObservation(k)
-			o.Source = probeBindingsID
-			if _, err := conditionsFrom.Observe(ctx, o); err != nil {
-				fmt.Printf("%s: and the condition for it could not be raised: %v\n", plan.Node, err)
-			}
-		}
-	}
-}
-
-// probeBindings is D12: every consumer of a provision that keeps its data is bound where it was last
-// sent, on every machine — the resolver kept it there (said, urgent, until a person pins), or a pin
-// moves it (said, so the data goes first), and never anything else.
-func probeBindings(ctx context.Context, d *doctor) ([]conditions.Observation, error) {
-	inv := d.open.inventory
-	nodes, err := inv.Nodes(ctx)
-	if err != nil {
-		return nil, err
-	}
-	var out []conditions.Observation
-	for _, n := range nodes {
-		plan, _, err := planFor(ctx, d.open, n.Name)
-		if err != nil {
-			if unresolvable(err) {
-				// D1 says it, with the binding that refused it when that is why.
-				continue
-			}
-			return nil, fmt.Errorf("%s cannot be worked out: %w", n.Name, err)
-		}
-		bound, err := inv.BindingsFor(ctx, n.Name)
-		if err != nil {
-			return nil, err
-		}
-		pins, err := inv.PinsFor(ctx, n.Name)
-		if err != nil {
-			return nil, err
-		}
-		out = append(out, bindingFindings(plan, bound, pins)...)
-	}
-	return out, nil
-}
-
-// bindingFindings is what one machine's resolution says against its record.
-func bindingFindings(plan catalogue.Resolution, bound map[string]map[string]catalogue.Chosen,
-	pins map[string]catalogue.Chosen) []conditions.Observation {
-	var out []conditions.Observation
-	for _, k := range plan.Kept {
-		out = append(out, keptObservation(k))
-	}
-	said := map[string]bool{}
-	for _, need := range plan.Needs {
-		if !need.KeepsData || need.ByRecord {
-			continue
-		}
-		was, recorded := bound[need.For][need.Name]
-		now := catalogue.Chosen{Node: need.From, Module: need.Module}
-		if !recorded || was == now || (was.Module == "" && was.Node == now.Node) {
-			continue
-		}
-		id := bindingID(plan.Node, need.For, need.Name)
-		if said[id] {
-			continue
-		}
-		said[id] = true
-		o := conditions.Observation{Scope: conditions.ScopeMachine, ID: id, Machine: plan.Node,
-			Also: otherMachines(plan.Node, was.Node, now.Node), Resolver: conditions.ResolverOperator}
-		if pin, pinned := pins[need.Name]; pinned && pin.Node == now.Node && (pin.Module == "" || pin.Module == now.Module) {
-			o.Token, o.Kind, o.Severity = kindBindingMoving, kindBindingMoving, conditions.Warning
-			o.Summary = fmt.Sprintf("on %s, %s's %s moves from %s to %s at the next push, by the pin — its data "+
-				"is on %s: move it first", plan.Node, need.For, need.Name, was, now, was)
-		} else {
-			o.Token, o.Kind, o.Severity = kindBindingMoved, kindBindingMoved, conditions.Urgent
-			o.Summary = fmt.Sprintf("on %s, %s's %s would be sent %s, and it is bound to %s, where its data is, "+
-				"with no pin naming %s — a move nothing asked for", plan.Node, need.For, need.Name, now, was, now)
-		}
-		out = append(out, o)
-	}
-	return out
-}

cmd/mesh-controller/bindings_integration_test.go

@@ -1,102 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-func TestTheIncidentAConsumerStaysBesideItsDataUntilAPersonPinsIt(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	if _, err := inv.SeedSeats(ctx, catalogue.DefaultSeats()); err != nil {
-		t.Fatal(err)
-	}
-	for _, m := range storeManifests() {
-		register(t, open, m)
-	}
-	assignAll := func(pairs ...[2]string) {
-		for _, a := range pairs {
-			if _, err := assign(ctx, open, a[0], a[1]); err != nil {
-				t.Fatalf("assign %s %s: %v", a[0], a[1], err)
-			}
-		}
-	}
-	// The anchor's store and resolver hold the mesh's seats, on record; the laptop runs its own of each.
-	assignAll([2]string{"anchor", "store"}, [2]string{"anchor", "resolver"})
-	for _, seat := range [][2]string{{"mesh-store", "store"}, {"mesh-dns-resolver", "resolver"}} {
-		if err := inv.HoldSeat(ctx, seat[0], catalogue.ScopeMesh, "anchor", seat[1]); err != nil {
-			t.Fatal(err)
-		}
-	}
-	assignAll([2]string{"laptop", "store"}, [2]string{"laptop", "resolver"}, [2]string{"laptop", "network"},
-		[2]string{"laptop", "board"})
-
-	plan, _, err := planFor(ctx, open, "laptop")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if n := need(t, plan, "board", "postgres-database"); n.From != "laptop" || n.Module != "store" || !n.KeepsData {
-		t.Fatalf("the consumer was bound to %s/%s (keeps data: %v); its data is beside it", n.From, n.Module, n.KeepsData)
-	}
-	if n := need(t, plan, "network", "wildcard-resolution"); n.From != "anchor" || n.KeepsData {
-		t.Fatalf("the resolver was bound to %s (keeps data: %v); its seat is held on anchor (issue 258)", n.From, n.KeepsData)
-	}
-
-	// Sent, and recorded: only the binding to data.
-	bindings := boundToData(plan, nil)
-	if len(bindings) != 1 || bindings[0].Provider != (catalogue.Chosen{Node: "laptop", Module: "store"}) {
-		t.Fatalf("recorded %+v", bindings)
-	}
-	if err := inv.RecordBindings(ctx, "laptop", bindings); err != nil {
-		t.Fatal(err)
-	}
-	if found, err := probeBindings(ctx, &doctor{open: open}); err != nil || len(found) != 0 {
-		t.Fatalf("a mesh bound where it was sent: %+v, %v", found, err)
-	}
-
-	// The laptop's store taken away: refused, not moved to the anchor's empty one.
-	if err := inv.Unassign(ctx, "laptop", "store"); err != nil {
-		t.Fatal(err)
-	}
-	if _, _, err := planFor(ctx, open, "laptop"); err == nil || !unresolvable(err) ||
-		!strings.Contains(err.Error(), "board on laptop is bound to laptop/store") ||
-		!strings.Contains(err.Error(), "pin laptop postgres-database anchor store") {
-		t.Fatalf("the consumer's store went and it was answered elsewhere: %v", err)
-	}
-
-	// A person pins the anchor's: it moves, said before it is sent, and the record keeps where it was.
-	if err := inv.PinProvision(ctx, "laptop", "postgres-database", "anchor", "store"); err != nil {
-		t.Fatal(err)
-	}
-	plan, _, err = planFor(ctx, open, "laptop")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if n := need(t, plan, "board", "postgres-database"); n.From != "anchor" {
-		t.Fatalf("pinned to the anchor and bound to %s", n.From)
-	}
-	found, err := probeBindings(ctx, &doctor{open: open})
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(found) != 1 || found[0].Kind != kindBindingMoving || found[0].Severity != conditions.Warning ||
-		!strings.Contains(found[0].Summary, "board's postgres-database moves from laptop/store to anchor/store") {
-		t.Fatalf("a pinned move is not said before it is sent: %+v", found)
-	}
-	if err := inv.RecordBindings(ctx, "laptop", boundToData(plan, nil)); err != nil {
-		t.Fatal(err)
-	}
-	all, err := inv.Bindings(ctx)
-	if err != nil || len(all) != 1 || all[0].MovedFrom != "laptop/store" {
-		t.Fatalf("%+v, %v", all, err)
-	}
-	if found, err := probeBindings(ctx, &doctor{open: open}); err != nil || len(found) != 0 {
-		t.Fatalf("a move sent is still said: %+v, %v", found, err)
-	}
-}

cmd/mesh-controller/bindings_test.go

@@ -1,93 +0,0 @@
-package main
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-// novox/hq issue 273, ADR 0232: a consumer of a provision that keeps its data moves only by a pin.
-
-func storeManifests() []catalogue.Manifest {
-	return []catalogue.Manifest{
-		{Module: "store", Version: "1",
-			Provides: []catalogue.Offer{{Name: "postgres-database", Scope: catalogue.ScopeMesh}},
-			Claims:   []catalogue.Claim{{Name: "mesh-store", Scope: catalogue.ScopeMesh}},
-			Serves:   map[string]map[string]any{"postgres-database": {"port": 5432}},
-			Grants:   map[string]string{"postgres-database": "/var/lib/mesh/store/grants"}},
-		{Module: "resolver", Version: "1",
-			Provides: []catalogue.Offer{{Name: "wildcard-resolution", Scope: catalogue.ScopeMesh}},
-			Claims:   []catalogue.Claim{{Name: "mesh-dns-resolver", Scope: catalogue.ScopeMesh}}},
-		{Module: "network", Version: "1", Requires: []string{"wildcard-resolution"}},
-		{Module: "board", Version: "1", Requires: []string{"postgres-database"}},
-	}
-}
-
-func need(t *testing.T, plan catalogue.Resolution, consumer, provision string) catalogue.Needed {
-	t.Helper()
-	for _, n := range plan.Needs {
-		if n.For == consumer && n.Name == provision {
-			return n
-		}
-	}
-	t.Fatalf("no %s for %s: %+v", provision, consumer, plan.Needs)
-	return catalogue.Needed{}
-}
-
-// The incident through the stores: the laptop runs its own store and a consumer of it, the anchor's
-// store holds the mesh's seat. The consumer stays beside its data, the resolver follows its seat, the
-// binding is recorded as sent, and a pin — only a pin — moves it, said before the push that carries it.
-
-// What one machine's resolution says against its record.
-func TestBindingFindingsSayAKeptMoveAndAMoveNothingAskedFor(t *testing.T) {
-	home, anchor := catalogue.Chosen{Node: "home", Module: "store"}, catalogue.Chosen{Node: "anchor", Module: "store"}
-	plan := catalogue.Resolution{Node: "laptop",
-		Kept: []catalogue.KeptBinding{{Machine: "laptop", Consumer: "board", Provision: "postgres-database",
-			Bound: home, Would: anchor}},
-		Needs: []catalogue.Needed{
-			{Name: "postgres-database", For: "board", From: "home", Module: "store", KeepsData: true},
-			{Name: "postgres-database", For: "game", From: "anchor", Module: "store", KeepsData: true},
-			{Name: "wildcard-resolution", For: "network", From: "anchor", Module: "resolver"},
-		}}
-	bound := map[string]map[string]catalogue.Chosen{
-		"board":   {"postgres-database": home},
-		"game":    {"postgres-database": home},
-		"network": {"wildcard-resolution": {Node: "home", Module: "resolver"}},
-	}
-	found := linted(bindingFindings(plan, bound, nil))
-	if len(found) != 2 {
-		t.Fatalf("found %+v", found)
-	}
-	kept, moved := found[0], found[1]
-	if kept.Kind != kindBindingKept || kept.Severity != conditions.Urgent || kept.Machine != "laptop" ||
-		!strings.Contains(kept.Summary, "would move board's postgres-database from home/store to anchor/store") ||
-		!strings.Contains(kept.Summary, "its data is on home/store") ||
-		!strings.Contains(kept.Summary, "`pin laptop postgres-database anchor store` to confirm a move (and move the data first)") {
-		t.Errorf("kept: %+v", kept)
-	}
-	if moved.Kind != kindBindingMoved || moved.Severity != conditions.Urgent ||
-		!strings.Contains(moved.Summary, "game's postgres-database would be sent anchor/store") {
-		t.Errorf("moved: %+v", moved)
-	}
-	if kept.Key() == moved.Key() {
-		t.Error("two consumers, one condition")
-	}
-}
-
-// A push says the move it refused, and raises its condition at once.
-func TestAPushSaysAKeptMoveAndRaisesItsCondition(t *testing.T) {
-	k, _ := withConditionsInMemory(t)
-	reportKept(t.Context(), catalogue.Resolution{Node: "laptop", Kept: []catalogue.KeptBinding{{Machine: "laptop",
-		Consumer: "board", Provision: "postgres-database", Bound: catalogue.Chosen{Node: "home", Module: "store"},
-		Would: catalogue.Chosen{Node: "anchor", Module: "store"}}}})
-	open, err := k.Open(t.Context())
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(open) != 1 || open[0].Kind != kindBindingKept || open[0].Severity != conditions.Urgent ||
-		open[0].Source != probeBindingsID {
-		t.Fatalf("raised %+v", open)
-	}
-}

cmd/mesh-controller/bucket_log_fill.go

@@ -1,207 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"sort"
-
-	"github.com/nats-io/nats.go"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-// **A filling bucket or log is said before it is full** (novox/hq ADR 0297 §6, issue 501).
-//
-// A module's bucket and its log each have a cap on the bus, and when either is full the bus refuses
-// the next write: the module stops doing what it writes for, and nothing said so before. On
-// 2026-10-11 the issue tracker's bucket held a sixth of its cap after two days, growing toward a stop
-// nobody would have heard coming. So the self-check reads every module's bucket and log, and one at
-// fillRaiseAt of its cap or more raises a condition naming the module, the bucket or log, and how full
-// it is.
-//
-// **Cleared by observation below fillClearBelow, not below fillRaiseAt**: a bucket or log hovering at
-// its threshold would otherwise be raised and cleared on every run. Between the two, an open condition
-// is kept and none is raised.
-//
-// **One that cannot be read is said, and the rest are still judged.** An unanswered question about one
-// stream is no reason to know nothing of the others: it is a finding of its own, naming the bucket or
-// log and why, and a fill condition already open for it is kept, because not knowing is not a pass.
-
-// The fill thresholds, in percent of a bucket's or log's cap.
-const (
-	fillRaiseAt    = 75
-	fillClearBelow = 70
-)
-
-// The conditions the fill probe raises: one filling, and one that could not be read.
-const (
-	kindBucketOrLogFilling = "bucket-or-log-filling"
-	kindBucketOrLogUnread  = "bucket-or-log-unread"
-)
-
-// probeFillID is the probe's id in the registry.
-const probeFillID = "D-fill"
-
-// bucketOrLog is one module's bucket or log as the fill probe reads it.
-type bucketOrLog struct {
-	Module string
-	// Kind is `bucket` or `log`; Name its local name; Stream the stream it is on the bus.
-	Kind, Name, Stream string
-}
-
-// filled is how full one bucket or log is, read from the bus.
-type filled struct {
-	Bytes, Max uint64
-}
-
-// percent is how full, in whole percent, rounded down.
-func (f filled) percent() uint64 {
-	if f.Max == 0 {
-		return 0
-	}
-	return f.Bytes * 100 / f.Max
-}
-
-// fillKey is where a bucket's or log's fill condition is kept.
-func fillKey(s bucketOrLog) string { return conditions.Key(conditions.ScopeBus, s.Stream, "filling") }
-
-// fillObservation is what one bucket's or log's fill says: a finding at fillRaiseAt or above, and,
-// while its condition is open, at fillClearBelow or above too; nothing otherwise, which is what clears
-// it. The operator's words are the kind's (plain_words.go); the summary and the evidence name the
-// module, the bucket or log, and the fill.
-func fillObservation(s bucketOrLog, f filled, open bool) (conditions.Observation, bool) {
-	if f.Max == 0 {
-		return conditions.Observation{}, false // one with no cap cannot fill
-	}
-	// Compared in bytes, not rounded percent: 74.9% is not 75%.
-	atRaise := f.Bytes*100 >= f.Max*fillRaiseAt
-	aboveClear := f.Bytes*100 >= f.Max*fillClearBelow
-	if !atRaise && !(open && aboveClear) {
-		return conditions.Observation{}, false
-	}
-	pct := f.percent()
-	return conditions.Observation{
-		Scope: conditions.ScopeBus, ID: s.Stream, Token: "filling", Kind: kindBucketOrLogFilling,
-		Severity: conditions.Warning,
-		Summary: fmt.Sprintf("%s's %s %s holds %s of %s, %d%%: at its cap the bus refuses the module's next write",
-			s.Module, s.Kind, s.Name, mibWords(f.Bytes), mibWords(f.Max), pct),
-		Said: fmt.Sprintf("module %s, %s %s (stream %s): %d of %d bytes, %d%%", s.Module, s.Kind, s.Name,
-			s.Stream, f.Bytes, f.Max, pct),
-	}, true
-}
-
-// unreadObservation says one bucket or log could not be read, and why. Asked over the network, so one
-// look can be wrong: raised on the second look in a row (confirm.go).
-func unreadObservation(s bucketOrLog, why error) conditions.Observation {
-	return conditions.Observation{
-		Scope: conditions.ScopeBus, ID: s.Stream, Token: "unread", Kind: kindBucketOrLogUnread,
-		Severity: conditions.Warning, Confirm: true,
-		Summary: fmt.Sprintf("%s's %s %s could not be read, so how full it is is not known", s.Module, s.Kind, s.Name),
-		Said:    fmt.Sprintf("module %s, %s %s (stream %s): %v", s.Module, s.Kind, s.Name, s.Stream, why),
-	}
-}
-
-// keptFilling is an open fill condition said again for a bucket or log that could not be read this
-// time: not knowing how full it is now is no reason to say it has room. Only ever made from a condition
-// read back as open — its own summary and severity, never words made up for it.
-func keptFilling(s bucketOrLog, open conditions.Condition, why error) conditions.Observation {
-	return conditions.Observation{
-		Scope: conditions.ScopeBus, ID: s.Stream, Token: "filling", Kind: kindBucketOrLogFilling,
-		Severity: open.Severity, Summary: open.Summary,
-		Said: fmt.Sprintf("module %s, %s %s (stream %s): not read this time (%v); kept open as it was",
-			s.Module, s.Kind, s.Name, s.Stream, why),
-	}
-}
-
-// mibWords is a size as a person reads it, in MiB with one decimal.
-func mibWords(b uint64) string {
-	return fmt.Sprintf("%.1f MiB", float64(b)/(1024*1024))
-}
-
-// readFill is how full one bucket or log is on the bus; found false when it is not on the bus.
-type readFill func(ctx context.Context, s bucketOrLog) (f filled, found bool, err error)
-
-// openFill is the fill condition open under a key, if one is, or why it could not be read.
-type openFill func(ctx context.Context, key string) (conditions.Condition, bool, error)
-
-// judgeFills judges every bucket and log on its own: one that cannot be read is said as unread, with
-// its fill condition kept only when that condition was read back and is open — when it cannot be read
-// either, nothing is said of its fill, which the unread finding already covers. Every other is judged
-// by its fill; for one of those, a condition that cannot be read is taken as open, so an unknown never
-// clears a fill measured between fillClearBelow and fillRaiseAt.
-func judgeFills(ctx context.Context, all []bucketOrLog, read readFill, open openFill) []conditions.Observation {
-	var out []conditions.Observation
-	for _, s := range all {
-		f, found, err := read(ctx, s)
-		if err != nil {
-			out = append(out, unreadObservation(s, err))
-			if c, isOpen, cerr := open(ctx, fillKey(s)); cerr == nil && isOpen {
-				out = append(out, keptFilling(s, c, err))
-			}
-			continue
-		}
-		if !found {
-			continue // not on the bus: created on the controller's next raise, and nothing there can fill
-		}
-		_, isOpen, cerr := open(ctx, fillKey(s))
-		isOpen = isOpen || cerr != nil
-		if o, said := fillObservation(s, f, isOpen); said {
-			out = append(out, o)
-		}
-	}
-	sort.SliceStable(out, func(i, j int) bool { return out[i].Key() < out[j].Key() })
-	return out
-}
-
-// declaredBucketsAndLogs is every module's bucket and log the catalogue declares, by its stream.
-func declaredBucketsAndLogs(ctx context.Context, d *doctor) ([]bucketOrLog, error) {
-	buckets, err := d.open.inventory.DeclaredBuckets(ctx)
-	if err != nil {
-		return nil, err
-	}
-	logs, err := d.open.inventory.DeclaredLogs(ctx)
-	if err != nil {
-		return nil, err
-	}
-	var out []bucketOrLog
-	for _, b := range buckets {
-		out = append(out, bucketOrLog{Module: b.Module, Kind: "bucket", Name: b.Name, Stream: "KV_" + b.Bucket()})
-	}
-	for _, l := range logs {
-		out = append(out, bucketOrLog{Module: l.Module, Kind: "log", Name: l.Name, Stream: l.Stream()})
-	}
-	return out, nil
-}
-
-// probeFill reads every module's bucket and log on the bus and says each one filling toward its cap,
-// and each one that could not be read.
-func probeFill(ctx context.Context, d *doctor) ([]conditions.Observation, error) {
-	all, err := declaredBucketsAndLogs(ctx, d)
-	if err != nil {
-		return nil, err
-	}
-	js := d.js.Context()
-	read := func(ctx context.Context, s bucketOrLog) (filled, bool, error) {
-		if err := ctx.Err(); err != nil {
-			return filled{}, false, err
-		}
-		info, err := js.StreamInfo(s.Stream, nats.Context(ctx))
-		switch {
-		case errors.Is(err, nats.ErrStreamNotFound):
-			return filled{}, false, nil
-		case err != nil:
-			return filled{}, false, err
-		case info.Config.MaxBytes <= 0:
-			return filled{}, true, nil
-		}
-		return filled{Bytes: info.State.Bytes, Max: uint64(info.Config.MaxBytes)}, true, nil
-	}
-	open := func(ctx context.Context, key string) (conditions.Condition, bool, error) {
-		if d.keeper == nil {
-			return conditions.Condition{}, false, nil
-		}
-		return d.keeper.Get(ctx, key)
-	}
-	return judgeFills(ctx, all, read, open), nil
-}

cmd/mesh-controller/bucket_log_fill_test.go

@@ -1,165 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-// **A filling log or bucket is said at three quarters of its cap and cleared below seven tenths**
-// (novox/hq ADR 0297 §6): raised at 75% naming the module, the bucket or log and its fill; not at 74.9%;
-// kept between 70% and 75% while it is open, and not raised there when it is not; and cleared — said no
-// more — once it reads below 70%, open or not.
-func TestAFillingBucketOrLogIsRaisedAtThreeQuartersAndClearedBelowSevenTenths(t *testing.T) {
-	const mib = 1024 * 1024
-	log := bucketOrLog{Module: "mesh-issues", Kind: "log", Name: "changes", Stream: "LOG_mesh-issues_changes"}
-	bucket := bucketOrLog{Module: "mesh-issues", Kind: "bucket", Name: "issues", Stream: "KV_mesh-issues_issues"}
-	for _, c := range []struct {
-		name  string
-		of    bucketOrLog
-		bytes uint64
-		max   uint64
-		open  bool
-		said  bool
-	}{
-		{"a log at exactly 75%", log, 768 * mib, 1024 * mib, false, true},
-		{"a bucket at exactly 75%", bucket, 48 * mib, 64 * mib, false, true},
-		{"a bucket full", bucket, 64 * mib, 64 * mib, false, true},
-		{"a log just under 75%", log, 768*mib - 1, 1024 * mib, false, false},
-		{"a bucket at 72%, not open", bucket, 64 * mib * 72 / 100, 64 * mib, false, false},
-		{"a bucket at 72%, open: kept", bucket, 64 * mib * 72 / 100, 64 * mib, true, true},
-		{"a log at exactly 70%, open: kept", log, 700 * mib, 1000 * mib, true, true},
-		{"a log just under 70%, open: cleared", log, 700*mib - 1, 1000 * mib, true, false},
-		{"a bucket at 10%, open: cleared", bucket, 64 * mib / 10, 64 * mib, true, false},
-		{"a bucket with no cap", bucket, 100, 0, true, false},
-	} {
-		o, said := fillObservation(c.of, filled{Bytes: c.bytes, Max: c.max}, c.open)
-		if said != c.said {
-			t.Errorf("%s: said %v, want %v", c.name, said, c.said)
-			continue
-		}
-		if !said {
-			continue
-		}
-		if o.Key() != fillKey(c.of) || o.Kind != kindBucketOrLogFilling || o.Severity != conditions.Warning {
-			t.Errorf("%s: raised as %s (%s, %s)", c.name, o.Key(), o.Kind, o.Severity)
-		}
-		for _, part := range []string{c.of.Module, c.of.Kind + " " + c.of.Name, "%", " of "} {
-			if !strings.Contains(o.Summary, part) {
-				t.Errorf("%s: does not name %q: %q", c.name, part, o.Summary)
-			}
-		}
-		if !strings.Contains(o.Said, "bytes") {
-			t.Errorf("%s: the evidence does not say the fill in bytes: %q", c.name, o.Said)
-		}
-	}
-	o, _ := fillObservation(log, filled{Bytes: 800 * mib, Max: 1024 * mib}, false)
-	if !strings.Contains(o.Summary, "800.0 MiB of 1024.0 MiB, 78%") {
-		t.Errorf("the fill is said as %q", o.Summary)
-	}
-}
-
-// **One bucket or log that cannot be read does not stop the others being judged** (review of #231): it is
-// said as unread with its reason, a fill condition open for it is kept, and every other bucket and log
-// is judged by its own fill.
-func TestAnUnreadableBucketOrLogIsSaidAndTheRestAreStillJudged(t *testing.T) {
-	const mib = 1024 * 1024
-	broken := bucketOrLog{Module: "a", Kind: "bucket", Name: "broken", Stream: "KV_a_broken"}
-	brokenOpen := bucketOrLog{Module: "a", Kind: "log", Name: "was-filling", Stream: "LOG_a_was-filling"}
-	full := bucketOrLog{Module: "b", Kind: "log", Name: "changes", Stream: "LOG_b_changes"}
-	empty := bucketOrLog{Module: "c", Kind: "bucket", Name: "quiet", Stream: "KV_c_quiet"}
-	absent := bucketOrLog{Module: "d", Kind: "bucket", Name: "not-yet", Stream: "KV_d_not-yet"}
-	refusal := errors.New("the bus did not answer")
-	read := func(_ context.Context, s bucketOrLog) (filled, bool, error) {
-		switch s {
-		case broken, brokenOpen:
-			return filled{}, false, refusal
-		case full:
-			return filled{Bytes: 900 * mib, Max: 1000 * mib}, true, nil
-		case empty:
-			return filled{Bytes: 1, Max: 64 * mib}, true, nil
-		}
-		return filled{}, false, nil
-	}
-	open := func(_ context.Context, key string) (conditions.Condition, bool, error) {
-		if key == fillKey(brokenOpen) {
-			return conditions.Condition{Key: key, Severity: conditions.Warning,
-				Summary: "a's log was-filling holds 800.0 MiB of 1024.0 MiB, 78%"}, true, nil
-		}
-		return conditions.Condition{}, false, nil
-	}
-	got := map[string]conditions.Observation{}
-	for _, o := range judgeFills(context.Background(), []bucketOrLog{broken, brokenOpen, full, empty, absent}, read, open) {
-		got[o.Key()] = o
-	}
-	for _, s := range []bucketOrLog{broken, brokenOpen} {
-		o, said := got[conditions.Key(conditions.ScopeBus, s.Stream, "unread")]
-		if !said || o.Kind != kindBucketOrLogUnread || !o.Confirm || !strings.Contains(o.Said, refusal.Error()) {
-			t.Errorf("%s could not be read and was said as %+v", s.Stream, o)
-		}
-	}
-	if o, kept := got[fillKey(brokenOpen)]; !kept || !strings.Contains(o.Said, "kept open") {
-		t.Errorf("an open fill condition of a log not read this time was not kept: %+v", o)
-	}
-	if _, said := got[fillKey(broken)]; said {
-		t.Error("a bucket not read and not filling was said filling")
-	}
-	if o, said := got[fillKey(full)]; !said || o.Kind != kindBucketOrLogFilling {
-		t.Errorf("a log at 90%% beside an unreadable one was not judged: %+v", got)
-	}
-	if len(got) != 4 {
-		t.Errorf("said %d findings, want 4 (two unread, one kept, one filling): %v", len(got), got)
-	}
-}
-
-// Both kinds have plain words of their own, which hold to the plain rule (novox/hq ADR 0253).
-func TestAFillingOrUnreadBucketOrLogIsSaidInPlainWords(t *testing.T) {
-	for _, kind := range []string{kindBucketOrLogFilling, kindBucketOrLogUnread} {
-		wording, has := plainWordings[kind]
-		if !has {
-			t.Errorf("%s has no plain words", kind)
-			continue
-		}
-		if why, ok := conditions.PlainWords(wording(conditions.Observation{Kind: kind})); !ok {
-			t.Errorf("%s: %s", kind, why)
-		}
-	}
-}
-
-// **When neither the bucket or log nor its condition can be read, nothing is said of its fill** (second
-// review of #231): the unread finding covers it, and no fill is invented for it. For one that is read and
-// measured between seven tenths and three quarters, a condition that cannot be read is taken as open, so
-// an unknown never clears it.
-func TestNothingIsSaidOfAFillWhenNeitherItNorItsConditionCanBeRead(t *testing.T) {
-	const mib = 1024 * 1024
-	broken := bucketOrLog{Module: "a", Kind: "log", Name: "changes", Stream: "LOG_a_changes"}
-	between := bucketOrLog{Module: "b", Kind: "bucket", Name: "issues", Stream: "KV_b_issues"}
-	read := func(_ context.Context, s bucketOrLog) (filled, bool, error) {
-		if s == broken {
-			return filled{}, false, errors.New("the bus did not answer")
-		}
-		return filled{Bytes: 72 * mib, Max: 100 * mib}, true, nil
-	}
-	open := func(context.Context, string) (conditions.Condition, bool, error) {
-		return conditions.Condition{}, false, errors.New("the conditions bucket did not answer")
-	}
-	got := map[string]conditions.Observation{}
-	for _, o := range judgeFills(context.Background(), []bucketOrLog{broken, between}, read, open) {
-		got[o.Key()] = o
-	}
-	if o, said := got[fillKey(broken)]; said {
-		t.Fatalf("a fill was said for a log whose fill and condition could not be read: %+v", o)
-	}
-	if _, said := got[conditions.Key(conditions.ScopeBus, broken.Stream, "unread")]; !said {
-		t.Error("the log that could not be read was not said as unread")
-	}
-	if _, kept := got[fillKey(between)]; !kept {
-		t.Error("a bucket at 72% whose condition could not be read was cleared")
-	}
-	if len(got) != 2 {
-		t.Errorf("said %d findings, want 2: %v", len(got), got)
-	}
-}

cmd/mesh-controller/build.go

@@ -6,16 +6,13 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"github.com/novox/mesh-controller/internal/conditions"
 	"os"
-	"slices"
 	"strings"
 	"time"
 
 	"github.com/nats-io/nats.go"
 
 	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/builder"
 	"github.com/novox/mesh-controller/internal/catalogue"
 	"github.com/novox/mesh-controller/internal/inventory"
 	"github.com/novox/mesh-controller/internal/link"
@@ -150,10 +147,6 @@ func buildFrom(result link.BuildResult) inventory.Build {
 		// be, for exactly the modules it needs most. Keeping them is what makes a replay able to
 		// rebuild the graph rather than a list of names.
 		Path: result.Path,
-		// What it was made from (novox/hq issue 280): two builds with one are one build.
-		SourceFingerprint: result.SourceFingerprint,
-		// And its reuse key (novox/hq ADR 0350 §1), which the chain names (ADR 0408 §1).
-		ReuseKey: result.ReuseKey,
 	}
 	// When it was asked, which is what orders it against another build of the same module
 	// (novox/hq 04-ISSUES/219) — not when it was heard.
@@ -163,16 +156,9 @@ func buildFrom(result link.BuildResult) inventory.Build {
 	for _, ref := range result.Against {
 		kept.Against = append(kept.Against, catalogue.Recorded(ref))
 	}
-	for _, ref := range result.Mirrored {
-		kept.Mirrored = append(kept.Mirrored, catalogue.Recorded(ref))
-	}
 	for _, r := range result.Read {
 		kept.Read = append(kept.Read, inventory.ReadRepository{Repository: r.Repository, Ref: r.Ref})
 	}
-	// What it was made from, as files (novox/hq ADR 0267): the planner maps the next merge onto it.
-	for _, s := range result.Sources {
-		kept.Sources = append(kept.Sources, inventory.BuildSource{Repository: s.Repository, Ref: s.Ref, Paths: s.Paths})
-	}
 	var announced []inventory.Artifact
 	for _, made := range result.Made {
 		announced = append(announced, inventory.Artifact{
@@ -185,10 +171,8 @@ func buildFrom(result link.BuildResult) inventory.Build {
 	kept.Manifest = recordedManifest(result.Manifest, announced)
 	// The module name comes from the manifest, which only exists when the build got that far.
 	if len(kept.Manifest) > 0 {
-		if list, err := judgedWith(result); err == nil {
-			if m, err := catalogue.ParseManifestWith(kept.Manifest, list); err == nil {
-				kept.Module = m.Module
-			}
+		if m, err := catalogue.ParseManifest(kept.Manifest); err == nil {
+			kept.Module = m.Module
 		}
 	}
 	return kept
@@ -256,18 +240,6 @@ func buildsCommand(ctx context.Context, args []string) error {
 		for _, made := range b.Made {
 			fmt.Printf("    %-10s %s\n", made.Kind, made.Reference)
 		}
-		// What it published and under what reuse key (novox/hq ADR 0408 §1).
-		if p := b.Published; p != nil {
-			if p.Artifact != "" {
-				fmt.Printf("    published  %s\n", p.Artifact)
-			}
-			if p.Package != nil {
-				fmt.Printf("    published  %s@%s\n", p.Package.Name, p.Package.Version)
-			}
-		}
-		if b.ReuseKey != "" {
-			fmt.Printf("    reuse key  %s\n", b.ReuseKey)
-		}
 		if !b.Worked() {
 			// The builder's own first line. The whole failure is often a build log, and printing
 			// it here would bury every other row.
@@ -420,72 +392,22 @@ func buildBehind(ctx context.Context, wait time.Duration) error {
 //
 // Separated from the command so `--behind` can walk a list without a second path to the same act.
 func buildOne(ctx context.Context, source buildSource, path, ref string, wait time.Duration) error {
-	_, err := buildOneAsked(ctx, source, path, ref, wait, false, "build")
-	return err
-}
-
-// recordAsked keeps a build request once it is asked (novox/hq issue 325), with who asked it, in a store
-// opened for the purpose: the asks reach here from processes that hold none.
-func recordAsked(ctx context.Context, r inventory.BuildRequest) {
-	open, err := openStores(ctx)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "build %s is asked and not kept as a build request: %v\n", r.ID, err)
-		return
-	}
-	defer open.Close()
-	recordBuildRequest(ctx, open.inventory, r)
-}
-
-// markWaitFailed says what became of a kept build request whose waited ask failed: never handed over, so
-// nothing runs; or handed over and no longer waited for, so asked with its outcome unknown — still read as in
-// flight until its outcome or its bound (novox/hq issue 325).
-func markWaitFailed(ctx context.Context, id string, why error) {
-	open, err := openStores(ctx)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "build %s could not be marked: %v\n", id, err)
-		return
-	}
-	defer open.Close()
-	mark := open.inventory.MarkOutcomeUnknown
-	if errors.Is(why, link.ErrNotHandedOver) {
-		mark = open.inventory.MarkNotAsked
-	}
-	if err := mark(ctx, id, why.Error()); err != nil {
-		fmt.Fprintf(os.Stderr, "build %s could not be marked: %v\n", id, err)
-	}
-}
-
-// buildOneAsked is buildOne answering the id it asked with — what a plan keeps to match the outcome
-// by (novox/hq ADR 0219) — and, for an ask not waited for, optionally a dry run: built and looked
-// at, never taken in (issue 240), which is what `replay` asks unless told to register.
-//
-// asker is who asked, for the build request kept once the ask is made (novox/hq issue 325); empty for an
-// asker that keeps the request itself, with its own name, once it knows the ask was made.
-func buildOneAsked(ctx context.Context, source buildSource, path, ref string, wait time.Duration,
-	dryRun bool, asker string) (string, error) {
-	if dryRun && wait != 0 {
-		return "", errors.New("a dry run waited for is `build --dry-run`")
-	}
 	// Before anything is asked of a builder: a source on a seat nobody holds is refused here, with
 	// the reason, rather than sent to a machine to fail at `git clone`.
 	repository, err := cloneFrom(ctx, source)
 	if err != nil {
-		return "", err
-	}
-	// Through a verb, only a repository the catalogue builds from (novox/hq ADR 0266).
-	if err := verbMayAsk(ctx, source, repository); err != nil {
-		return "", err
+		return err
 	}
 
 	ident, err := openIdentity(ctx)
 	if err != nil {
-		return "", err
+		return err
 	}
 	defer ident.Close()
 
 	server, err := connectLink(ctx, nil, nil, nil)
 	if err != nil {
-		return "", err
+		return err
 	}
 	defer server.Close()
 
@@ -498,9 +420,7 @@ func buildOneAsked(ctx context.Context, source buildSource, path, ref string, wa
 		Ref:        ref,
 		Held:       heldBy(ctx),
 		Seats:      seatBases(ctx),
-		DryRun:     dryRun,
 	}
-	request.Reuse = reuseAsked(ctx, dryRun)
 	fmt.Printf("asked for %s", source)
 	if source.Seat != "" {
 		fmt.Printf(" (%s)", repository)
@@ -518,18 +438,10 @@ func buildOneAsked(ctx context.Context, source buildSource, path, ref string, wa
 	seat := buildSeatHeld(ctx)
 	ask, err := askOverOn(seat)
 	if err != nil {
-		return "", err
+		return err
 	}
 	defer ask.Close()
 	fmt.Printf("  of %s\n", seat)
-	// Kept once it is asked, so `assign` knows a module is coming while its build runs (novox/hq issue 325);
-	// never before, so an ask that failed never reads as a build in flight. A dry run registers nothing, and
-	// is not kept.
-	keep := !dryRun && asker != ""
-	// Asked at the terminal is what lets its outcome register a module from a repository the catalogue does
-	// not build it from (novox/hq ADR 0266); never through a verb.
-	asked := inventory.BuildRequest{ID: request.ID, Repository: source.Repository, Seat: source.Seat, Path: path,
-		Ref: ref, For: asker, AtTerminal: startedAtTheTerminal()}
 
 	if wait == 0 {
 		// Asked and not waited for (novox/hq issue 176): the outcome is the role's event, and the
@@ -537,46 +449,26 @@ func buildOneAsked(ctx context.Context, source buildSource, path, ref string, wa
 		// is still here. A tool call cannot hold a connection for the minutes a build takes; it
 		// follows the build by its id instead.
 		if err := ask.Ask(ctx, request); err != nil {
-			return "", err
-		}
-		if keep {
-			recordAsked(ctx, asked)
-		}
-		if dryRun {
-			fmt.Printf("asked as a dry run, not waited for: `builds --log %s` follows it as it runs; "+
-				"its outcome is not taken in\n", request.ID)
-			return request.ID, nil
+			return err
 		}
 		fmt.Printf("asked, not waited for: `builds --log %s` follows it as it runs, and `builds` "+
 			"shows what came of it; the module is registered when the outcome comes\n", request.ID)
-		return request.ID, nil
+		return nil
 	}
 
-	// Waited for: kept while it is waited for, since that can take minutes, and marked when the hand-over
-	// failed (not asked) or the wait did (asked, outcome unknown) — an outcome heard later is the last word.
-	if keep {
-		recordAsked(ctx, asked)
-	}
 	result, err := ask.Submit(ctx, request, wait)
 	if err != nil {
-		if keep {
-			markWaitFailed(ctx, request.ID, err)
-		}
-		return request.ID, err
+		return err
 	}
 
 	open, err := openStores(ctx)
 	if err != nil {
-		return request.ID, err
+		return err
 	}
 	defer open.Close()
 	manifest, kept, err := takeIn(ctx, open.inventory, result)
-	// The assignments pending on this build, made or ended (novox/hq issue 325).
-	for _, line := range settlePendingOnBuild(ctx, open, result, manifest.Module, err) {
-		fmt.Printf("  %s\n", line)
-	}
 	if err != nil {
-		return request.ID, err
+		return err
 	}
 	// Said as recorded: what each artifact is, not where this builder happened to push it.
 	for _, made := range kept.Made {
@@ -586,7 +478,7 @@ func buildOneAsked(ctx context.Context, source buildSource, path, ref string, wa
 		manifest.Module, manifest.Version, result.On, short(result.Commit))
 	saysWhenThePolicyActs(ctx, open.inventory, manifest.Module)
 	fmt.Printf("  run `assign <node> %s` to put it somewhere\n", manifest.Module)
-	return request.ID, nil
+	return nil
 }
 
 // saysWhenThePolicyActs tells whoever built a module that its upgrade policy will send the
@@ -619,11 +511,6 @@ func saysWhenThePolicyActs(ctx context.Context, inv *inventory.Inventory, module
 // written with the same values.
 func takeIn(ctx context.Context, inv *inventory.Inventory, result link.BuildResult) (
 	catalogue.Manifest, inventory.Build, error) {
-	// The list of predefined keys as the store keeps it now: another controller process may have kept a newer one.
-	if err := loadPredefined(ctx, inv); err != nil {
-		return catalogue.Manifest{}, inventory.Build{}, fmt.Errorf("the list of predefined keys kept cannot be "+
-			"read: %w", err)
-	}
 	kept := buildFrom(result)
 	if err := inv.RecordBuild(ctx, kept); err != nil {
 		return catalogue.Manifest{}, kept, err
@@ -634,15 +521,7 @@ func takeIn(ctx context.Context, inv *inventory.Inventory, result link.BuildResu
 		return catalogue.Manifest{}, kept, fmt.Errorf("%s could not build %s:\n%s",
 			result.On, result.Repository, result.Failed)
 	}
-	// Judged first against the list the build was judged against: the catalogue's at the commit built (novox/hq
-	// ADR 0348 §7), so a module naming a key its own commit adds is read; and again below against the list the
-	// mesh publishes, before it is registered.
-	list, err := judgedWith(result)
-	if err != nil {
-		return catalogue.Manifest{}, kept, fmt.Errorf("%s built %s (%s), recorded and not registered: %w", result.On,
-			result.Repository, short(result.Commit), err)
-	}
-	manifest, err := catalogue.ParseManifestWith(kept.Manifest, list)
+	manifest, err := catalogue.ParseManifest(kept.Manifest)
 	if err != nil {
 		return catalogue.Manifest{}, kept, fmt.Errorf("%s built %s and what came back is not a manifest: %w",
 			result.On, result.Repository, err)
@@ -672,84 +551,6 @@ func takeIn(ctx context.Context, inv *inventory.Inventory, result link.BuildResu
 		return manifest, kept, fmt.Errorf("%s built %s (%s), and the mesh does not register it: %w",
 			result.On, result.Repository, short(result.Commit), err)
 	}
-	// **Only from the repository the catalogue builds the module from** (novox/hq ADR 0266): else the trunk
-	// below is the trunk of whatever repository was built, which may be one an agent made — and a module named
-	// `sudo` from it would be what the next push sends. Another repository is the operator's, at the terminal.
-	trunk := result.Trunk
-	if was, err := inv.SourceOf(ctx, manifest.Module); err == nil && followedBranch(was.Ref) != "" {
-		trunk = followedBranch(was.Ref)
-	}
-	if trunk == "" {
-		trunk = "main"
-	}
-	repoID, err := mayRegisterFrom(ctx, inv, manifest.Module, recorded, result.ID, result.Path, trunk)
-	if err != nil {
-		return manifest, kept, fmt.Errorf("%s built %s (%s), recorded and not registered: %w", result.On,
-			manifest.Module, short(result.Commit), err)
-	}
-	// **Only a commit on the trunk is published** (novox/hq ADR 0238): a commit off its repository's
-	// default branch — a pull request's head, a feature branch built by hand, a `rebuild` or `replay
-	// --register` of one — is for checking, and is never a module's version; nothing could then send it.
-	// The branch the module already follows is its trunk — never the branch a build was asked at, or a
-	// build of a feature branch by name would make that branch its trunk.
-	follows := ""
-	if was, err := inv.SourceOf(ctx, manifest.Module); err == nil {
-		follows = followedBranch(was.Ref)
-	}
-	if err := publishable(result, follows); err != nil {
-		return manifest, kept, fmt.Errorf("%s built %s (%s), recorded and not registered: %w", result.On,
-			manifest.Module, short(result.Commit), err)
-	}
-	// **Never a build in the scratch namespace** (novox/hq ADR 0239 §9, ADR 0350 §2): what a check builds is
-	// registered only as the walk's copy in the module's own namespace.
-	if scratch := inScratch(result.Made); scratch != "" {
-		return manifest, kept, fmt.Errorf("%s built %s (%s), recorded and not registered: %s is in the scratch "+
-			"namespace, which only a walk's copy leaves (ADR 0350)", result.On, manifest.Module, short(result.Commit), scratch)
-	}
-	// **A build that failed its gate is never registered again** (novox/hq ADR 0236): an outcome heard
-	// twice, or replayed, would otherwise make the build a rollback put back what the module is again,
-	// and the next push would send it.
-	if failed, err := inv.GateFailed(ctx, kept.ID); err != nil {
-		return manifest, kept, err
-	} else if failed {
-		return manifest, kept, fmt.Errorf("%s built %s (%s), which failed its gate on its first machine and was put "+
-			"back: it is recorded and not registered again — a newer build is", result.On, manifest.Module,
-			short(result.Commit))
-	}
-	// **The newest trunk build's list of predefined keys is published** (novox/hq ADR 0348 §7): a build of the
-	// catalogue that may be registered keeps its list when its commit is newer than the one kept. Then the module
-	// is judged against the list the mesh publishes, as every manifest read again is: one naming a key that list
-	// does not hold, or of another type, is refused here and never enters the catalogue.
-	if carried, err := carriedList(result); err != nil {
-		return manifest, kept, err
-	} else if carried != nil {
-		if err := publishPredefined(ctx, inv, result, carried); err != nil {
-			fmt.Printf("%s: the list of predefined keys it carried is not published: %v\n", result.ID, err)
-		}
-	}
-	if manifest.NamesPredefined() {
-		if _, err := catalogue.ParseManifest(kept.Manifest); err != nil {
-			return manifest, kept, fmt.Errorf("%s built %s (%s), recorded and not registered: judged against the "+
-				"list of predefined keys the mesh publishes, %w", result.On, manifest.Module, short(result.Commit), err)
-		}
-	}
-	// **A build whose source is unchanged is never a move** (novox/hq issue 280): a rebuild made from
-	// what the build the mesh stands on was made from registers that build's artifacts at the new
-	// commit, so no machine is sent a new digest for a source nobody changed — an image is not
-	// byte-reproducible, and the bus rebuilt for another module's merge demanded a planned upgrade.
-	if kept.SourceFingerprint != "" {
-		stands, raw, err := inv.StandingBuild(ctx, manifest.Module, kept.ID)
-		if err != nil {
-			return manifest, kept, err
-		}
-		if stands != "" && stands != kept.ID && len(raw) > 0 {
-			if same, err := catalogue.ParseManifest(raw); err == nil && same.Module == manifest.Module {
-				fmt.Printf("%s at %s was made from the source %s was: registered with its artifacts, no move\n",
-					manifest.Module, short(result.Commit), stands)
-				manifest = same
-			}
-		}
-	}
 	if err := inv.RegisterModule(ctx, manifest, recorded); err != nil {
 		if errors.Is(err, inventory.ErrSuperseded) {
 			return manifest, kept, fmt.Errorf("%s built %s (%s), recorded and not registered: %w",
@@ -757,64 +558,15 @@ func takeIn(ctx context.Context, inv *inventory.Inventory, result link.BuildResu
 		}
 		return manifest, kept, err
 	}
-	// Which repository it is registered from, by the forge's own id (novox/hq ADR 0266).
-	if err := inv.SetSourceIdentity(ctx, manifest.Module, repoID); err != nil {
-		return manifest, kept, err
-	}
-	// The keep set just moved, and new bytes just landed (novox/hq ADR 0189). Asked here rather
-	// than on a timer of its own: this is the only moment either is true. Never fatal — the build
-	// worked and the module is registered.
-	collect(ctx, inv)
 	return manifest, kept, nil
 }
 
-// inScratch is the first artifact a build made into the scratch namespace; empty when none is.
-func inScratch(made []link.MadeArtifact) string {
-	for _, m := range made {
-		if path, kept := catalogue.InArtifactStore(catalogue.Recorded(m.Reference)); kept && strings.HasPrefix(path, builder.ScratchPrefix) {
-			return m.Reference
-		}
-	}
-	return ""
-}
-
-// errOffTheTrunk is a build of a commit off its repository's trunk, which is never published.
-var errOffTheTrunk = errors.New("the commit is not on its repository's trunk: a commit off the trunk is checked, " +
-	"never published (ADR 0238) — merge it, and the merge builds it")
-
-// publishable says whether a build's outcome may become a module's version: its commit on the module's
-// trunk, as the build seat read the forge at the build — the branch the module follows when its source
-// names one, else its repository's default branch. A build seat that could not say — one older than the
-// rule, building its own successor — is let through and said, so the rule can reach the mesh.
-func publishable(result link.BuildResult, follows string) error {
-	if result.Check != nil || result.Checked != nil || result.DryRun {
-		return errors.New("a check or a dry run is never published")
-	}
-	if result.Trunk == "" {
-		fmt.Printf("%s: the build seat did not say whether %s is on its repository's trunk (it predates ADR 0238); "+
-			"registered as before\n", result.ID, short(result.Commit))
-		return nil
-	}
-	trunk := result.Trunk
-	if follows != "" {
-		trunk = follows
-	}
-	on := slices.Contains(result.Branches, trunk) || (trunk == result.Trunk && result.OnTrunk)
-	if !on {
-		return fmt.Errorf("%w (%s is not on %s)", errOffTheTrunk, short(result.Commit), trunk)
-	}
-	return nil
-}
-
 // buildAndShow builds and prints the manifest without recording anything.
 func buildAndShow(ctx context.Context, source buildSource, path, ref string, wait time.Duration) error {
 	repository, err := cloneFrom(ctx, source)
 	if err != nil {
 		return err
 	}
-	if err := verbMayAsk(ctx, source, repository); err != nil {
-		return err
-	}
 	ident, err := openIdentity(ctx)
 	if err != nil {
 		return err
@@ -836,7 +588,6 @@ func buildAndShow(ctx context.Context, source buildSource, path, ref string, wai
 		ID:         link.NewBuildID(time.Now()),
 		Repository: repository, Path: path, Ref: ref,
 		Held: heldBy(ctx), Seats: seatBases(ctx),
-		DryRun: true,
 	}, wait)
 	if err != nil {
 		return err
@@ -866,19 +617,12 @@ type answers struct {
 	sources map[string]inventory.Source
 	// waiting is every machine not running what the mesh would send it.
 	waiting []inventory.Machine
-	// recordedWaits is, per machine, every move of a recorded module that waits there for a person (novox/hq ADR
-	// 0377 §6): the machine is behind for these, and `push <node>` sends them.
-	recordedWaits map[string][]string
 	// reported is every machine's last word beside when it was last sent a declaration — the
 	// pair that answers "has it caught up", which waiting alone cannot (the sent digest is
 	// recorded at send, not at apply).
 	reported []inventory.Reported
 	// plans is what the last merges produced and where each stands (novox/hq ADR 0162).
 	plans []inventory.Plan
-	// paused is whether the build seat takes work, which a plan waiting on it says (ADR 0219).
-	paused pauseView
-	// tierBounds is how long each repository's plan tier may take before it is late (novox/hq issue 296).
-	tierBounds tierBounds
 	// refused is why a machine cannot be worked out at all, by name. A different thing from every
 	// other answer here: those are about a machine that was told something, and this is about one
 	// that cannot be told anything — it never reaches waiting, because nothing was computed for it
@@ -902,41 +646,6 @@ type answers struct {
 	// public name on the machine went dark. The holds were correct; they were recorded only in the
 	// machine's own state file, and the one visible symptom was a count that did not add up.
 	untaken map[string]map[string]int
-	// leftOut is, per machine, every module of its set its composition leaves out, and why (novox/hq issue
-	// 380): assigned and not applied, which every push said only in passing. Not well while there is any.
-	leftOut map[string][]leftOutModule
-	// unheld is every module on a machine whose resources are applied through a seat nothing on
-	// that machine holds (novox/hq ADR 0207), with the modules that could hold it. Reported, not
-	// refused, until the switch — and while there is any, the mesh is not all well: the order the
-	// machines' modules are built in is the mesh's to keep, and this is where it says it is not kept.
-	unheld []catalogue.Unheld
-	// conditions is every open condition (novox/hq to-be 45 §2), urgent first and then oldest first:
-	// what leads status, and what its all-well sentence needs to be none of, silenced ones included.
-	// A provider failing a consumer is one of them (ADR 0224). conditionsUnread says why they could
-	// not be read when they could not — never read as none.
-	conditions       []conditions.Condition
-	conditionsUnread string
-	// overflowing is every module whose identity overflows the bound of a provision it requires
-	// (novox/hq ADR 0225): its provider leaves it out of the grants and composes everything else, so
-	// this is the one place it is said across the mesh. Not well while there is any.
-	overflowing []catalogue.Overflow
-	// handActs is how many acts were done by hand in the last seven days (novox/hq to-be 45 §7), nil
-	// where the log is not on hand; handActsUnread why it could not be read when it could not.
-	handActs       *int
-	handActsUnread string
-	// heals is what the healers did in the last seven days (novox/hq to-be 45 §7): acts, and conditions
-	// handed to the operator; healsUnread why it could not be read.
-	heals       *healsCount
-	healsUnread string
-	// pending is every assignment waiting for its module's build, and every one ended in the last day
-	// (novox/hq issue 325); pendingUnread why they could not be read. One waiting, or one ended other than
-	// applied, is not well: an assignment somebody made is not made yet, or will not be.
-	pending       []inventory.PendingAssignment
-	pendingUnread string
-	// lastSent is every machine's last recorded send, by name, with what the machine answered of it (novox/hq
-	// issue 485); lastSentUnread why it could not be read.
-	lastSent       map[string]inventory.Send
-	lastSentUnread string
 }
 
 // heldBy is every artifact this mesh has built, for a build that may need one as its base.
@@ -948,47 +657,17 @@ type answers struct {
 //
 // Routed through the artifact store as the network reaches it now (novox/hq 04-ISSUES/102): a
 // base is recorded by digest and path, and a build machine needs something it can pull.
-// runningBy is, keyed "<module>/<artifact>", each artifact of the build the mesh has registered for its module, as a
-// builder reaches the artifact store (novox/hq issue 721): what a check compares its builds with. Empty when it cannot
-// be read, said, and then nothing is said unchanged.
-func runningBy(ctx context.Context) map[string]string {
-	open, err := openStores(ctx)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "could not read what this mesh runs, so the check compares nothing: %v\n", err)
-		// empty-on-error: said above; a check given nothing to compare with says no module unchanged, and all move
-		return nil
-	}
-	defer open.Close()
-	running, err := open.inventory.RegisteredHeld(ctx)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "could not read what this mesh runs, so the check compares nothing: %v\n", err)
-		// empty-on-error: said above; a check given nothing to compare with says no module unchanged, and all move
-		return nil
-	}
-	address, err := whereABuilderReachesTheStore(ctx, open.inventory)
-	if err != nil || address == "" {
-		return running
-	}
-	routed := make(map[string]string, len(running))
-	for key, reference := range running {
-		routed[key] = catalogue.Rerouted(reference, address)
-	}
-	return routed
-}
-
 func heldBy(ctx context.Context) map[string]string {
 	open, err := openStores(ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "could not read what this mesh has built, so a module naming a "+
 			"base will be told that base is missing: %v\n", err)
-		// empty-on-error: said above; a build that names a base is refused by name for want of it
 		return nil
 	}
 	defer open.Close()
 	held, err := open.inventory.Held(ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "could not read what this mesh has built: %v\n", err)
-		// empty-on-error: said above; a build that names a base is refused by name for want of it
 		return nil
 	}
 	address, err := whereABuilderReachesTheStore(ctx, open.inventory)
@@ -1013,10 +692,6 @@ func heldBy(ctx context.Context) map[string]string {
 // the mesh runs on today this needs the controller's own connection, so it is handed one; on the bus
 // being built it dials, because a build request is a one-shot and holds nothing else.
 func askOverOn(seat string) (link.Builders, error) {
-	// The serving controller asks on its own connection (novox/hq issue 327).
-	if serving := servingBus.Load(); serving != nil {
-		return link.BuildsOn(serving, seat), nil
-	}
 	address, err := broker.BusAddress()
 	if err != nil {
 		return nil, err
@@ -1075,7 +750,11 @@ func buildSeatAmong(entries []inventory.Entry) string {
 // with a consumer of its own that is gone when this returns, so nothing accumulates in the server
 // for the reading, and filtered by subject, so one build's lines are all that travel.
 func buildLog(ctx context.Context, id string) error {
-	js, err := aBus()
+	address, err := broker.BusAddress()
+	if err != nil {
+		return err
+	}
+	js, err := broker.Dial(address)
 	if err != nil {
 		return fmt.Errorf("cannot reach the bus to read a build's log: %w", err)
 	}

cmd/mesh-controller/build_integration_test.go

@@ -1,131 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"encoding/json"
-	"errors"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-func TestABuildHeardIsRecordedAndRegistered(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	manifest, _ := json.Marshal(map[string]any{"module": "shop", "version": "3"})
-	m, _, err := takeIn(ctx, open.inventory, asTheOperator(t, open.inventory, link.BuildResult{
-		ID: "b-1", Repository: "http://forge.internal:20000/novox/shop.git", Path: "modules/shop",
-		Ref: "main", On: "anchor", Commit: "abcdef0123", Manifest: manifest,
-		Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/shop"},
-	}))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if m.Module != "shop" {
-		t.Fatalf("registered %q", m.Module)
-	}
-	shelf, err := open.inventory.Catalogue(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if _, held := shelf["shop"]; !held {
-		t.Fatal("the module a heard build produced is not in the catalogue")
-	}
-	src, err := open.inventory.SourceOf(ctx, "shop")
-	if err != nil || src.Seat != "git" || src.Repository != "novox/shop" || src.BuiltFrom != "abcdef0123" {
-		t.Fatalf("the source is the seat and the path, never the URL: %+v %v", src, err)
-	}
-	builds, err := open.inventory.Builds(ctx, "shop", 5)
-	if err != nil || len(builds) != 1 || builds[0].ID != "b-1" {
-		t.Fatalf("the build is not recorded once: %v %v", builds, err)
-	}
-
-	named, _ := json.Marshal(map[string]any{"module": "idp", "version": "1", "resources": []any{
-		map[string]any{"id": "server", "type": "container", "image": "x@sha256:aa",
-			"env": map[string]any{"KC_HOSTNAME": "https://login.mesh-one.be"}}}})
-	_, _, err = takeIn(ctx, open.inventory, link.BuildResult{
-		ID: "b-2", Repository: "/r", On: "anchor", Commit: "0123456789", Manifest: named})
-	if err == nil || !strings.Contains(err.Error(), "does not register it") {
-		t.Fatalf("a definition naming an installation was taken in: %v", err)
-	}
-	if shelf, _ := open.inventory.Catalogue(ctx); shelf["idp"].Module != "" {
-		t.Fatal("the refused module was registered anyway")
-	}
-	if builds, _ := open.inventory.Builds(ctx, "idp", 5); len(builds) != 1 {
-		t.Fatalf("the refused build was not recorded: %v", builds)
-	}
-
-	_, _, err = takeIn(ctx, open.inventory, link.BuildResult{ID: "b-3", Repository: "/r", On: "anchor", Failed: "no compiler"})
-	if err == nil || !strings.Contains(err.Error(), "no compiler") {
-		t.Fatalf("a failure is said in the builder's words: %v", err)
-	}
-}
-
-func TestABuildAtACommitKeepsTheBranchTheModuleFollows(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	manifest, _ := json.Marshal(map[string]any{"module": "unifi", "version": "1"})
-	result := func(id, ref, commit string) link.BuildResult {
-		return link.BuildResult{ID: id, Repository: "http://forge.internal:20000/novox/mesh-catalog.git",
-			Path: "modules/unifi", Ref: ref, On: "anchor", Commit: commit, Manifest: manifest,
-			Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/mesh-catalog"}}
-	}
-	if _, _, err := takeIn(ctx, open.inventory, asTheOperator(t, open.inventory, result("b-1", "main", "1111111aaaa"))); err != nil {
-		t.Fatal(err)
-	}
-	if _, _, err := takeIn(ctx, open.inventory, result("b-2", "9c97a8a", "9c97a8a1d2c3")); err != nil {
-		t.Fatal(err)
-	}
-	src, err := open.inventory.SourceOf(ctx, "unifi")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if src.Ref != "main" || src.BuiltFrom != "9c97a8a1d2c3" {
-		t.Errorf("after a build at a commit the module follows %q, built from %q; want main, 9c97a8a1d2c3", src.Ref, src.BuiltFrom)
-	}
-
-	// One new to the catalogue, first built at a commit, follows the default branch.
-	other, _ := json.Marshal(map[string]any{"module": "letta", "version": "1"})
-	r := result("b-3", "deadbeef", "deadbeefcafe")
-	r.Manifest, r.Path = other, "modules/letta"
-	if _, _, err := takeIn(ctx, open.inventory, r); err != nil {
-		t.Fatal(err)
-	}
-	if src, _ := open.inventory.SourceOf(ctx, "letta"); src.Ref != "" {
-		t.Errorf("a module first built at a commit follows %q, want the default branch", src.Ref)
-	}
-}
-
-func TestAnOlderBuildHeardLaterDoesNotReplaceTheNewer(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	older := time.Date(2026, 10, 3, 21, 33, 45, 0, time.UTC)
-	newer := time.Date(2026, 10, 3, 21, 51, 57, 0, time.UTC)
-	result := func(asked time.Time, image string) link.BuildResult {
-		manifest, _ := json.Marshal(map[string]any{"module": "postgres", "version": image})
-		return link.BuildResult{ID: link.NewBuildID(asked), Repository: "http://forge.internal:20000/novox/mesh-catalog.git",
-			Path: "modules/postgres", Ref: "main", On: "anchor", Commit: "efff5415", Manifest: manifest,
-			Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/mesh-catalog"}}
-	}
-	if _, _, err := takeIn(ctx, open.inventory, asTheOperator(t, open.inventory, result(newer, "4bcd5f73"))); err != nil {
-		t.Fatal(err)
-	}
-	_, _, err := takeIn(ctx, open.inventory, result(older, "0ab07fa9"))
-	if !errors.Is(err, inventory.ErrSuperseded) {
-		t.Fatalf("the older request's outcome was taken in as current: %v", err)
-	}
-	shelf, err := open.inventory.Catalogue(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if got := shelf["postgres"].Version; got != "4bcd5f73" {
-		t.Errorf("postgres is %q; want the newer request's 4bcd5f73", got)
-	}
-	if builds, _ := open.inventory.Builds(ctx, "postgres", 5); len(builds) != 2 {
-		t.Errorf("the late build was not recorded: %v", builds)
-	}
-}

cmd/mesh-controller/build_source.go

@@ -1,566 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"regexp"
-	"strings"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// Where a build may register a module from (novox/hq ADR 0266).
-//
-// A build's outcome registers its module, and a registered module is what the next push sends. Before this,
-// an outcome registered whatever its manifest named, from whichever repository it was built from: an agent
-// that made a repository of its own, committed `modules/sudo/module.json` granting itself a rule without a
-// password, and asked the `build` verb for it had its repository registered as the module `sudo` — whose next
-// push made the agent root on every node. A fork of the node-engine did the same everywhere. The trunk rule
-// (ADR 0238) did not stop it: the trunk it checked was the trunk of the repository built, which was the
-// agent's own.
-//
-// So **an outcome registers a module only from the repository the catalogue already builds that module
-// from**; and a module new to the catalogue only from a repository the catalogue already builds another
-// module from — whose trunk takes a reviewed, approved merge, which is how a merge adds a module (novox/hq
-// issue 300). Anything else — a module moved to another repository, a module from a repository the
-// catalogue has never built — is the operator's, at the controller's terminal: allowed only when the build
-// request was kept as asked there. Judged at the take-in, which every outcome reaches whoever hears it and
-// whichever verb asked it (`build`, `rebuild`, `replay --register`, `assign` with build), and before the ask
-// for a call through a verb, so an agent cannot have a build node run a repository the catalogue does not
-// build from at all.
-
-// errNotItsSource is an outcome refused for where it was built from.
-var errNotItsSource = errors.New("not built from the repository the catalogue builds it from")
-
-// servedVar marks every process the serving controller starts — each verb's command, each child — and the serving
-// process itself, so none of them can read as the operator at the terminal (novox/hq ADR 0266). Set by serve
-// before it answers anything, inherited by every child through os.Environ.
-const servedVar = "MESH_SERVED_BY_THE_CONTROLLER"
-
-// startedAtTheTerminal says this process was started at the controller's terminal: not the serving controller,
-// not anything it started, not a verb's command, not a seat call's. The serving controller marks its own
-// environment (servedVar), so a build asked in it, or by any process it starts, never reads as the terminal's;
-// runVerb also names the verb and the caller.
-//
-// **And a line mesh-cli asked as the controller's terminal** (novox/hq ADR 0272 §4): the serving controller runs it
-// without the served mark and without a verb, names its caller, and marks it with cliTerminalVar — a mark only the
-// mesh-cli path sets and every other command line the controller runs is stripped of (commandEnvironment).
-func startedAtTheTerminal() bool {
-	if os.Getenv(servedVar) != "" || os.Getenv(verbVar) != "" {
-		return false
-	}
-	return os.Getenv(link.CallerVar) == "" || os.Getenv(cliTerminalVar) != ""
-}
-
-// cliTerminalVar marks a command line the serving controller runs as the controller's terminal for mesh-cli.
-const cliTerminalVar = "MESH_CLI_TERMINAL"
-
-// markServed marks this process, and so everything it starts, as the serving controller's.
-func markServed() {
-	if err := os.Setenv(servedVar, "1"); err != nil {
-		panic("the serving controller could not mark its environment: " + err.Error())
-	}
-}
-
-// sourceForms compares sources however each is spelled: a path on a seat's holder (ADR 0111) or a URL — a
-// build asked of a seat's path is registered with the URL composed from it when its outcome does not echo
-// the seat. A seat's path is composed into its URL where the seat's holder is known, so both spellings of
-// one repository are one; where it is not, a seat's path matches only the same seat's same path.
-type sourceForms struct {
-	bases map[string]string // the seat's clone base, `scheme://host:port`, by seat; "" where it is not known
-	base  func(seat string) string
-}
-
-// newSourceForms reads the seats' bases from the mesh once, when first needed.
-func newSourceForms(ctx context.Context, inv *inventory.Inventory) *sourceForms {
-	f := &sourceForms{bases: map[string]string{}}
-	var world *catalogue.World
-	f.base = func(seat string) string {
-		if b, known := f.bases[seat]; known {
-			return b
-		}
-		if world == nil {
-			w := catalogue.World{}
-			if shelf, err := inv.Catalogue(ctx); err == nil {
-				if read, err := theRestOfTheMesh(ctx, inv, shelf, ""); err == nil {
-					w = read
-				}
-			}
-			world = &w
-		}
-		b, err := seatBase(*world, seat)
-		if err != nil {
-			b = ""
-		}
-		f.bases[seat] = b
-		return b
-	}
-	return f
-}
-
-// canonical is one spelling of a repository: lower case, no `.git`, no trailing slash, and a seat's path as
-// the URL its holder serves it at where that is known.
-func (f *sourceForms) canonical(repository, seat string) string {
-	trim := func(s string) string {
-		s = strings.TrimSpace(strings.ToLower(s))
-		s = strings.TrimRight(s, "/")
-		return strings.TrimRight(strings.TrimSuffix(s, ".git"), "/")
-	}
-	if seat == "" {
-		return trim(repository)
-	}
-	if b := f.base(seat); b != "" {
-		return trim(b + "/" + strings.Trim(repository, "/"))
-	}
-	return "seat:" + seat + ":" + trim(strings.Trim(repository, "/"))
-}
-
-// same says two sources are one repository.
-func (f *sourceForms) same(aRepository, aSeat, bRepository, bSeat string) bool {
-	if aRepository == "" || bRepository == "" {
-		return false
-	}
-	return f.canonical(aRepository, aSeat) == f.canonical(bRepository, bSeat)
-}
-
-// buildsFrom says the catalogue builds some module from this repository.
-func (f *sourceForms) buildsFrom(entries []inventory.Entry, repository, seat string) bool {
-	for _, e := range entries {
-		if e.Provided || e.Source.Repository == "" {
-			continue
-		}
-		if f.same(e.Source.Repository, e.Source.Seat, repository, seat) {
-			return true
-		}
-	}
-	return false
-}
-
-// forgeFacts is what the mesh's forge says of a repository a module is registered from (novox/hq ADR 0266).
-type forgeFacts struct {
-	// ID is the forge's own id of the repository: what tells it from one deleted and made again by its name.
-	ID int64
-	// Guarded is whether the branch is protected as a module's trunk must be: no direct push, at least one
-	// required status, and no administrator merging past one. Why says what is missing when it is not.
-	Guarded bool
-	Why     string
-}
-
-// askTheForge asks the forge, through its module's tools on the bus, for a repository's id and its branch's
-// protection, waiting out a forge not served for a moment (novox/hq issue 486). A variable so a test needs no
-// forge.
-var askTheForge = func(ctx context.Context, owner, repo, branch string) (forgeFacts, error) {
-	return forgeWaitedOut(ctx, forgeWait, owner+"/"+repo, func(ctx context.Context) (forgeFacts, error) {
-		return askTheForgeOnce(ctx, owner, repo, branch)
-	})
-}
-
-// waitOut bounds how long a question is asked again while its answer is "not now": a pause of first, doubling
-// to most, for at most bound in all. now and sleep are the clock, so a test waits in no real time.
-type waitOut struct {
-	bound, first, most time.Duration
-	now                func() time.Time
-	sleep              func(context.Context, time.Duration) error
-}
-
-// forgeWait is the registration's wait for the forge (novox/hq issue 486). On 2026-10-11 a build's registration
-// asked the forge while node-tools on the control-node re-served after a rollout of the tool runner, heard
-// "nothing serves gitea.gitea_api", and failed its plan; the forge answered again seconds later. A re-serve takes
-// about 10 s, so 60 s waits one out with room to spare. It is a cap on the whole wait, an ask in flight included:
-// the registration holds the controller's one receive loop while it waits, and a loop held two minutes reads as
-// deaf. The pauses are those the build machine waits the registry with (novox/hq issue 457).
-var forgeWait = waitOut{bound: 60 * time.Second, first: time.Second, most: 10 * time.Second,
-	now: time.Now, sleep: sleepOrDone}
-
-// sleepOrDone pauses for d, or less when ctx ends first.
-func sleepOrDone(ctx context.Context, d time.Duration) error {
-	t := time.NewTimer(d)
-	defer t.Stop()
-	select {
-	case <-ctx.Done():
-		return ctx.Err()
-	case <-t.C:
-		return nil
-	}
-}
-
-// forgeNotNow is an answer that says the forge's tool is not served now — the tool runner re-serving — not that
-// the forge refused. Only that is asked again: a refusal, an unreadable answer or a repository with no id is the
-// forge's word, and a tool that did not answer in time has already held the receive loop its whole wait.
-func forgeNotNow(err error) bool { return errors.Is(err, link.ErrNothingServes) }
-
-// forgeWaitedOut asks the forge about repository, asking again while it answers "not served now", all of it
-// within w's bound, an ask in flight included (novox/hq issue 486). Past the bound it fails, saying it waited,
-// for how long, and what the forge last said; when the caller's own context ends, it says that instead.
-func forgeWaitedOut(ctx context.Context, w waitOut, repository string,
-	ask func(context.Context) (forgeFacts, error)) (forgeFacts, error) {
-	capped, cancel := context.WithTimeout(ctx, w.bound)
-	defer cancel()
-	began := w.now()
-	pause := w.first
-	for asked := 1; ; asked++ {
-		facts, err := ask(capped)
-		if err == nil {
-			if asked > 1 {
-				fmt.Printf("the forge answered about %s again, after %s (novox/hq issue 486)\n", repository,
-					w.now().Sub(began).Round(time.Second))
-			}
-			return facts, nil
-		}
-		if ctx.Err() != nil {
-			return forgeFacts{}, err // the caller's own context ended: no wait of ours to speak of
-		}
-		gaveUp := func() (forgeFacts, error) {
-			return forgeFacts{}, fmt.Errorf("waited %s for the forge to answer about %s, asking %d times, and it "+
-				"did not (novox/hq issue 486): %w", w.now().Sub(began).Round(time.Second), repository, asked, err)
-		}
-		if capped.Err() != nil {
-			return gaveUp() // the bound ended an ask in flight
-		}
-		if !forgeNotNow(err) {
-			return forgeFacts{}, err
-		}
-		if w.now().Sub(began)+pause > w.bound {
-			return gaveUp()
-		}
-		fmt.Printf("the forge cannot be asked about %s now (%v); asking again in %s, for at most %s in all "+
-			"(novox/hq issue 486)\n", repository, err, pause, w.bound)
-		if serr := w.sleep(capped, pause); serr != nil {
-			if ctx.Err() != nil {
-				return forgeFacts{}, fmt.Errorf("stopped waiting for the forge to answer about %s: %w", repository,
-					ctx.Err())
-			}
-			return gaveUp()
-		}
-		pause = min(2*pause, w.most)
-	}
-}
-
-// askTheForgeOnce asks the forge once, through its module's tools on the bus.
-func askTheForgeOnce(ctx context.Context, owner, repo, branch string) (forgeFacts, error) {
-	js, err := aBus()
-	if err != nil {
-		return forgeFacts{}, err
-	}
-	defer js.Close()
-	bus := link.OverNATS{Conn: js.Conn()}
-	ask := func(tool string, args map[string]any, into any) error {
-		raw, _ := json.Marshal(args)
-		answer, err := link.Ask(ctx, bus, "gitea", tool, raw, 30*time.Second)
-		if err != nil {
-			return err
-		}
-		if answer.Error != "" {
-			return fmt.Errorf("gitea.%s: %s", tool, answer.Error)
-		}
-		return json.Unmarshal(answer.Result, into)
-	}
-	var found struct {
-		Result struct {
-			ID       int64  `json:"id"`
-			FullName string `json:"full_name"`
-		} `json:"result"`
-	}
-	if err := ask("gitea_api", map[string]any{"path": "/repos/" + owner + "/" + repo}, &found); err != nil {
-		return forgeFacts{}, err
-	}
-	if found.Result.ID == 0 {
-		return forgeFacts{}, fmt.Errorf("the forge named no id for %s/%s", owner, repo)
-	}
-	var rules struct {
-		Rules []protectionRule `json:"rules"`
-	}
-	if err := ask("gitea_branch_protection_get", map[string]any{"owner": owner, "repo": repo}, &rules); err != nil {
-		return forgeFacts{}, err
-	}
-	facts := judgedRule(rules.Rules, branch)
-	facts.ID = found.Result.ID
-	return facts, nil
-}
-
-// protectionRule is a branch protection rule as the forge's tool summarises it.
-type protectionRule struct {
-	Rule             string   `json:"rule"`
-	Push             bool     `json:"push"`
-	RequiredStatuses []string `json:"required_statuses"`
-	AdminMayOverride bool     `json:"admin_may_override"`
-}
-
-// judgedRule judges the one rule the forge applies to a branch, as the forge picks it: the rule named for the
-// branch, else the first glob rule, in the forge's order, that covers it (gitea's first matching rule). Never a
-// later rule that happens to be stronger: the forge does not read it.
-func judgedRule(rules []protectionRule, branch string) forgeFacts {
-	var applied *protectionRule
-	for i := range rules {
-		if rules[i].Rule == branch {
-			applied = &rules[i]
-			break
-		}
-	}
-	if applied == nil {
-		for i := range rules {
-			if ruleCovers(rules[i].Rule, branch) {
-				applied = &rules[i]
-				break
-			}
-		}
-	}
-	switch r := applied; {
-	case r == nil:
-		return forgeFacts{Why: fmt.Sprintf("no protection rule covers %s", branch)}
-	case r.Push:
-		return forgeFacts{Why: fmt.Sprintf("the rule %s lets a person push to %s directly", r.Rule, branch)}
-	case len(r.RequiredStatuses) == 0:
-		return forgeFacts{Why: fmt.Sprintf("the rule %s requires no status before a merge into %s", r.Rule, branch)}
-	case r.AdminMayOverride:
-		return forgeFacts{Why: fmt.Sprintf("the rule %s lets an administrator merge into %s past a status", r.Rule, branch)}
-	}
-	return forgeFacts{Guarded: true}
-}
-
-// ruleCovers says a protection rule's name — a branch, or a glob of them — covers a branch, as the forge reads it.
-func ruleCovers(rule, branch string) bool {
-	if rule == branch {
-		return true
-	}
-	if !strings.ContainsAny(rule, "*?[") {
-		return false
-	}
-	var re strings.Builder
-	re.WriteString("^")
-	for i := 0; i < len(rule); i++ {
-		switch c := rule[i]; {
-		case c == '*' && i+1 < len(rule) && rule[i+1] == '*':
-			re.WriteString(".*")
-			i++
-		case c == '*':
-			re.WriteString("[^/]*")
-		case c == '?':
-			re.WriteString("[^/]")
-		default:
-			re.WriteString(regexp.QuoteMeta(string(c)))
-		}
-	}
-	re.WriteString("$")
-	ok, _ := regexp.MatchString(re.String(), branch)
-	return ok
-}
-
-// onTheForge is a source's owner and name on the mesh's own forge (the git seat's holder), and whether it is
-// there at all.
-func (f *sourceForms) onTheForge(repository, seat string) (owner, name string, ok bool) {
-	var rest string
-	switch {
-	case seat == gitSeat:
-		rest = strings.Trim(repository, "/")
-	case seat == "":
-		base := f.base(gitSeat)
-		if base == "" {
-			return "", "", false
-		}
-		url, prefix := f.canonical(repository, ""), f.canonical(base, "")+"/"
-		if !strings.HasPrefix(url, prefix) {
-			return "", "", false
-		}
-		// The case the forge spells it with: the URL as given, past the base.
-		rest = strings.TrimSuffix(strings.Trim(repository[len(prefix):], "/"), ".git")
-	default:
-		return "", "", false
-	}
-	parts := strings.Split(rest, "/")
-	if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
-		return "", "", false
-	}
-	return parts[0], parts[1], true
-}
-
-// mayRegisterFrom says whether a build's outcome may register module from the source it was built from, and the
-// forge's id of that repository to record (novox/hq ADR 0266). Through any verb, only:
-//
-//   - from the module's registered repository — the same repository by the forge's own id, not only its name; or,
-//     for a module new to the catalogue, from a repository the catalogue builds another module from;
-//   - and from a repository on the mesh's forge whose trunk is protected as a trunk must be: no direct push, at
-//     least one required status, no administrator merging past one.
-//
-// Anything else only when the build request was kept as asked at the controller's terminal, for this very
-// repository and path. path is the module's directory as built; branch the trunk it is registered from.
-func mayRegisterFrom(ctx context.Context, inv *inventory.Inventory, module string, built inventory.Source,
-	buildID, path, branch string) (int64, error) {
-	forms := newSourceForms(ctx, inv)
-	was, err := inv.SourceOf(ctx, module)
-	isNew := errors.Is(err, inventory.ErrNoSuchModule)
-	if err != nil && !isNew {
-		return 0, err
-	}
-	terminal, err := askedHereFor(ctx, inv, forms, buildID, built, path)
-	if err != nil {
-		return 0, err
-	}
-	refuse := func(why string) (int64, error) {
-		return 0, fmt.Errorf("%w: %s. A module is registered from such a source only by a build asked at the "+
-			"controller's terminal, never through a verb: a registered module is what the next push sends, and whoever "+
-			"may call a verb includes agents (novox/hq ADR 0266)", errNotItsSource, why)
-	}
-
-	var why string
-	var alongside []inventory.Entry // the modules a new one's repository already builds
-	switch {
-	case !isNew && forms.same(was.Repository, was.Seat, built.Repository, built.Seat):
-	case !isNew:
-		registered := was.Repository
-		if registered == "" {
-			registered = "no repository (it was handed over by hand)"
-		}
-		why = fmt.Sprintf("%s is built from %s, and this build is of %s", module, sourceWords(registered, was.Seat),
-			sourceWords(built.Repository, built.Seat))
-	default:
-		entries, err := inv.Catalogued(ctx)
-		if err != nil {
-			return 0, err
-		}
-		for _, e := range entries {
-			if !e.Provided && e.Source.Repository != "" &&
-				forms.same(e.Source.Repository, e.Source.Seat, built.Repository, built.Seat) {
-				alongside = append(alongside, e)
-			}
-		}
-		if len(alongside) == 0 {
-			why = fmt.Sprintf("%s is new to the catalogue, and %s is no repository the catalogue builds a module from",
-				module, sourceWords(built.Repository, built.Seat))
-		}
-	}
-	// **Or the move the operator approved** (novox/hq ADR 0420 §7, issue 1025): a known module built from another
-	// repository by a merge, whose pull request mesh-delivery merged on the operator's Approve of that head.
-	// A verb alone, or a merge with no such warrant, is refused as before.
-	movedWhy := ""
-	if why != "" && !terminal && !isNew {
-		accepted, err := approvedMove(ctx, inv, forms, buildID, built)
-		switch {
-		case err == nil:
-			movedWhy, why = accepted, ""
-		case !errors.Is(err, errNotAMerge):
-			fmt.Printf("%s: %s is built from another repository, and no approved move covers this build: %v\n",
-				buildID, module, err)
-		}
-	}
-	if why != "" && !terminal {
-		return refuse(why)
-	}
-
-	owner, name, onForge := forms.onTheForge(built.Repository, built.Seat)
-	if !onForge {
-		if terminal {
-			fmt.Printf("%s: %s is not on the mesh's forge — registered, as asked at the controller's terminal\n",
-				buildID, sourceWords(built.Repository, built.Seat))
-			return 0, nil
-		}
-		return refuse(fmt.Sprintf("%s is not on the mesh's forge, so whether its trunk is protected cannot be read",
-			sourceWords(built.Repository, built.Seat)))
-	}
-	facts, err := askTheForge(ctx, owner, name, branch)
-	if err != nil {
-		if terminal {
-			fmt.Printf("%s: the forge could not be asked about %s/%s (%v) — registered, as asked at the controller's "+
-				"terminal\n", buildID, owner, name, err)
-			return 0, nil
-		}
-		return refuse(fmt.Sprintf("the forge could not say whether %s/%s's %s is protected: %v", owner, name, branch, err))
-	}
-	if terminal {
-		if why != "" || !facts.Guarded {
-			fmt.Printf("%s: %s — registered, as asked at the controller's terminal\n", buildID,
-				strings.Trim(why+"; "+facts.Why, "; "))
-		}
-		return facts.ID, nil
-	}
-	if !facts.Guarded {
-		return refuse(fmt.Sprintf("%s/%s's %s is not protected as a module's trunk must be: %s", owner, name, branch,
-			facts.Why))
-	}
-	// The same repository by the forge's id, not only its name: one deleted and made again is another.
-	recorded := map[string]int64{}
-	// A moved module is registered from the repository the operator approved, not the one it was registered from.
-	if !isNew && movedWhy == "" {
-		id, err := inv.SourceIdentity(ctx, module)
-		if err != nil {
-			return 0, err
-		}
-		recorded[module] = id
-	}
-	for _, e := range alongside {
-		id, err := inv.SourceIdentity(ctx, e.Manifest.Module)
-		if err != nil {
-			return 0, err
-		}
-		recorded[e.Manifest.Module] = id
-	}
-	for m, id := range recorded {
-		if id != 0 && id != facts.ID {
-			return refuse(fmt.Sprintf("%s/%s is not the repository %s was registered from: the forge knows it as "+
-				"repository %d, and %s was registered from repository %d — one of that name deleted and made again",
-				owner, name, m, facts.ID, m, id))
-		}
-	}
-	if movedWhy != "" {
-		fmt.Printf("%s: %s moved from %s to %s/%s — registered at the operator's Approve: %s\n", buildID, module,
-			sourceWords(was.Repository, was.Seat), owner, name, movedWhy)
-	}
-	return facts.ID, nil
-}
-
-// askedHereFor says the build was asked at the controller's terminal, for this repository and this path: a kept
-// request marked so, whose source is the outcome's (novox/hq ADR 0266).
-func askedHereFor(ctx context.Context, inv *inventory.Inventory, forms *sourceForms, buildID string,
-	built inventory.Source, path string) (bool, error) {
-	r, found, err := inv.BuildRequestByID(ctx, buildID)
-	if err != nil || !found || !r.AtTerminal {
-		return false, err
-	}
-	if !forms.same(r.Repository, r.Seat, built.Repository, built.Seat) ||
-		strings.Trim(r.Path, "/") != strings.Trim(path, "/") {
-		fmt.Printf("%s was asked at the terminal of %s at %q, and its outcome is of %s at %q: not the terminal's\n",
-			buildID, sourceWords(r.Repository, r.Seat), r.Path, sourceWords(built.Repository, built.Seat), path)
-		return false, nil
-	}
-	return true, nil
-}
-
-// sourceWords is a source as a person reads it.
-func sourceWords(repository, seat string) string {
-	if seat == "" {
-		return repository
-	}
-	return buildSource{Repository: repository, Seat: seat}.String()
-}
-
-// verbMayAsk refuses, for a call through a verb, a build of a repository the catalogue builds no module from
-// (novox/hq ADR 0266): the build node would run what an agent wrote, and its outcome could never be
-// registered anyway. url is the repository as it is cloned. At the terminal anything may be asked.
-func verbMayAsk(ctx context.Context, source buildSource, url string) error {
-	if startedAtTheTerminal() {
-		return nil
-	}
-	open, err := openStores(ctx)
-	if err != nil {
-		return err
-	}
-	defer open.Close()
-	entries, err := open.inventory.Catalogued(ctx)
-	if err != nil {
-		return err
-	}
-	forms := newSourceForms(ctx, open.inventory)
-	if forms.buildsFrom(entries, source.Repository, source.Seat) || forms.buildsFrom(entries, url, "") {
-		return nil
-	}
-	return terminalRefusal("%s is no repository the catalogue builds a module from, and a build of any other is "+
-		"asked at the controller's terminal only, never through a verb: a build node runs what the repository "+
-		"says, and its outcome would register a module the next push sends — whoever may call a verb includes "+
-		"agents (novox/hq ADR 0266). Nothing was asked", source)
-}

cmd/mesh-controller/build_source_integration_test.go

@@ -1,353 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"os/exec"
-	"slices"
-	"strings"
-	"testing"
-	"time"
-
-	"git.novox.be/novox/mesh-sdk/go/asks"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-func theCatalogue(t *testing.T) *stores {
-	t.Helper()
-	open := aMesh(t)
-	ctx := t.Context()
-	for _, b := range []link.BuildResult{
-		onTrunk("build-sudo", "novox/mesh-catalog", "git", "modules/sudo", map[string]any{"module": "sudo", "version": "1"}),
-		onTrunk("build-host", "novox/mesh-host", "git", "", map[string]any{"module": "mesh-host", "version": "1"}),
-	} {
-		keptAsked(t, open.inventory, b.ID, b.Source.Repository, b.Path, true)
-		if _, _, err := takeIn(ctx, open.inventory, b); err != nil {
-			t.Fatal(err)
-		}
-	}
-	return open
-}
-
-func TestABuildFromAnAgentsRepositoryIsNotRegisteredAsAModuleTheMeshHolds(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	for _, c := range []struct {
-		name, repository, path, module string
-	}{
-		{"its own repository naming sudo", "agent/sudo", "modules/sudo", "sudo"},
-		{"a fork of the catalogue", "agent/mesh-catalog", "modules/sudo", "sudo"},
-		{"a fork of the node-engine", "agent/mesh-host", "", "mesh-host"},
-	} {
-		t.Run(c.name, func(t *testing.T) {
-			id := "build-" + strings.ReplaceAll(c.repository, "/", "-")
-			keptAsked(t, open.inventory, id, c.repository, c.path, false) // through the build verb
-			evil := onTrunk(id, c.repository, "git", c.path, map[string]any{"module": c.module, "version": "evil"})
-			_, _, err := takeIn(ctx, open.inventory, evil)
-			if !errors.Is(err, errNotItsSource) {
-				t.Fatalf("a build of %s was taken in as %s: %v", c.repository, c.module, err)
-			}
-			shelf, err := open.inventory.Catalogue(ctx)
-			if err != nil {
-				t.Fatal(err)
-			}
-			if got := shelf[c.module].Version; got != "1" {
-				t.Fatalf("%s is now %q, from %s", c.module, got, c.repository)
-			}
-			if _, found, _ := open.inventory.BuildByID(ctx, id); !found {
-				t.Errorf("the refused build %s is not recorded", id)
-			}
-		})
-	}
-}
-
-func TestANewModuleFromARepositoryTheCatalogueDoesNotBuildFromIsNotRegistered(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	keptAsked(t, open.inventory, "build-new", "agent/tools", "", false)
-	_, _, err := takeIn(ctx, open.inventory, onTrunk("build-new", "agent/tools", "git", "",
-		map[string]any{"module": "agent-tools", "version": "1"}))
-	if !errors.Is(err, errNotItsSource) {
-		t.Fatalf("a new module from an agent's repository was taken in: %v", err)
-	}
-	// And one asked of nobody here — an outcome on the bus no request was kept for — the same.
-	_, _, err = takeIn(ctx, open.inventory, onTrunk("build-unasked", "agent/tools", "git", "",
-		map[string]any{"module": "agent-tools", "version": "1"}))
-	if !errors.Is(err, errNotItsSource) {
-		t.Fatalf("an outcome nobody asked for was taken in: %v", err)
-	}
-	if shelf, _ := open.inventory.Catalogue(ctx); shelf["agent-tools"].Module != "" {
-		t.Fatal("the refused module is in the catalogue")
-	}
-}
-
-func TestAtTheTerminalAnotherRepositoryIsRegistered(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	keptAsked(t, open.inventory, "build-moved", "novox/sudo", "", true)
-	if _, _, err := takeIn(ctx, open.inventory, onTrunk("build-moved", "novox/sudo", "git", "",
-		map[string]any{"module": "sudo", "version": "2"})); err != nil {
-		t.Fatalf("a move the operator asked for at the terminal was refused: %v", err)
-	}
-	if src, _ := open.inventory.SourceOf(ctx, "sudo"); src.Repository != "novox/sudo" {
-		t.Fatalf("sudo is built from %q", src.Repository)
-	}
-	if err := open.inventory.RecordBuildRequest(ctx, inventory.BuildRequest{ID: "build-external",
-		Repository: "http://forge.internal:20000/someone/app.git", For: "build", AtTerminal: true}); err != nil {
-		t.Fatal(err)
-	}
-	if _, _, err := takeIn(ctx, open.inventory, onTrunk("build-external", "someone/app", "", "",
-		map[string]any{"module": "app", "version": "1"})); err != nil {
-		t.Fatalf("a new module the operator asked for at the terminal was refused: %v", err)
-	}
-}
-
-func TestADeliveryFromTheRegisteredRepositoryIsRegistered(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	rebuilt := onTrunk("build-plan", "novox/mesh-catalog", "git", "modules/sudo", map[string]any{"module": "sudo", "version": "2"})
-	if err := open.inventory.RecordBuildRequest(ctx, inventory.BuildRequest{ID: rebuilt.ID,
-		Repository: "novox/mesh-catalog", Seat: "git", Path: "modules/sudo", For: "plan"}); err != nil {
-		t.Fatal(err)
-	}
-	if _, _, err := takeIn(ctx, open.inventory, rebuilt); err != nil {
-		t.Fatalf("a plan's build of the module's own repository was refused: %v", err)
-	}
-	added := onTrunk("build-merge", "novox/mesh-catalog", "git", "modules/zram", map[string]any{"module": "zram", "version": "1"})
-	if _, _, err := takeIn(ctx, open.inventory, added); err != nil {
-		t.Fatalf("a module a merge added to the catalogue repository was refused: %v", err)
-	}
-	shelf, _ := open.inventory.Catalogue(ctx)
-	if shelf["sudo"].Version != "2" || shelf["zram"].Module == "" {
-		t.Fatalf("not registered: sudo %q, zram %q", shelf["sudo"].Version, shelf["zram"].Module)
-	}
-}
-
-func TestAVerbAsksNoBuildOfARepositoryTheCatalogueDoesNotBuildFrom(t *testing.T) {
-	theCatalogue(t)
-	ctx := t.Context()
-	t.Setenv(verbVar, "build")
-	t.Setenv(link.CallerVar, "node-tools.anchor, through the mesh-controller seat")
-	err := verbMayAsk(ctx, buildSource{Repository: "agent/sudo", Seat: "git"}, "http://forge.internal:20000/agent/sudo.git")
-	var policy *heldAtTheTerminal
-	if !errors.As(err, &policy) {
-		t.Fatalf("a verb's build of an agent's repository was asked: %v", err)
-	}
-	if err := verbMayAsk(ctx, buildSource{Repository: "novox/mesh-catalog", Seat: "git"},
-		"http://forge.internal:20000/novox/mesh-catalog.git"); err != nil {
-		t.Fatalf("a verb's build of the catalogue repository was refused: %v", err)
-	}
-	t.Setenv(verbVar, "")
-	t.Setenv(link.CallerVar, "")
-	if err := verbMayAsk(ctx, buildSource{Repository: "agent/sudo", Seat: "git"}, ""); err != nil {
-		t.Fatalf("the terminal was refused: %v", err)
-	}
-}
-
-func TestARollbackNeverPutsBackABuildFromAnotherRepository(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	inv := open.inventory
-	fork := onTrunk("build-1791500000000000000", "agent/mesh-catalog", "git", "modules/sudo",
-		map[string]any{"module": "sudo", "version": "evil"})
-	fork.Commit = "c0ffee0123456789" // the commit sudo was registered at
-	keptAsked(t, inv, fork.ID, "agent/mesh-catalog", "modules/sudo", false)
-	if _, _, err := takeIn(ctx, inv, fork); !errors.Is(err, errNotItsSource) {
-		t.Fatalf("the fork's build was taken in: %v", err)
-	}
-	// Asked after the registered build, whenever the test runs: an id naming a fixed moment read as older
-	// than the registered build once the clock passed it (2026-10-10 02:40 UTC), and the test failed on main.
-	failed := onTrunk(fmt.Sprintf("build-%d", time.Now().Add(time.Hour).UnixNano()), "novox/mesh-catalog", "git", "modules/sudo",
-		map[string]any{"module": "sudo", "version": "2"})
-	failed.Commit = "badbadbad0123456"
-	if _, _, err := takeIn(ctx, inv, failed); err != nil {
-		t.Fatal(err)
-	}
-	record, _, err := inv.BuildByID(ctx, failed.ID)
-	if err != nil {
-		t.Fatal(err)
-	}
-	previous, found, err := inv.PreviousBuild(ctx, "sudo", "c0ffee0123456789", record)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if found && previous.ID == fork.ID {
-		t.Fatalf("a rollback would put back the fork's build %s", previous.ID)
-	}
-	if !found || previous.ID != "build-sudo" {
-		t.Fatalf("a rollback puts back %q (found %v), want the registered build-sudo", previous.ID, found)
-	}
-}
-
-func TestATrunkTheForgeDoesNotProtectRegistersNothing(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	theForge.Store("novox/unguarded", forgeFacts{ID: 7, Why: "the rule main lets a person push to main directly"})
-	t.Cleanup(func() { theForge.Delete("novox/unguarded") })
-	first := onTrunk("build-unguarded-1", "novox/unguarded", "git", "", map[string]any{"module": "unguarded", "version": "1"})
-	keptAsked(t, open.inventory, first.ID, "novox/unguarded", "", true)
-	if _, _, err := takeIn(ctx, open.inventory, first); err != nil {
-		t.Fatalf("at the terminal: %v", err)
-	}
-	again := onTrunk("build-unguarded-2", "novox/unguarded", "git", "", map[string]any{"module": "unguarded", "version": "2"})
-	if _, _, err := takeIn(ctx, open.inventory, again); !errors.Is(err, errNotItsSource) ||
-		!strings.Contains(err.Error(), "push to main directly") {
-		t.Fatalf("a rebuild from an unprotected trunk was taken in: %v", err)
-	}
-	theForge.Store("novox/unguarded", errors.New("nothing serves gitea.gitea_api"))
-	if _, _, err := takeIn(ctx, open.inventory, onTrunk("build-unguarded-3", "novox/unguarded", "git", "",
-		map[string]any{"module": "unguarded", "version": "3"})); !errors.Is(err, errNotItsSource) {
-		t.Fatalf("a forge that could not say was read as a protected trunk: %v", err)
-	}
-	if shelf, _ := open.inventory.Catalogue(ctx); shelf["unguarded"].Version != "1" {
-		t.Fatalf("unguarded is %q", shelf["unguarded"].Version)
-	}
-}
-
-func TestARepositoryMadeAgainUnderItsNameIsNotTheModulesSource(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	theForge.Store("novox/remade", forgeFacts{ID: 100, Guarded: true})
-	t.Cleanup(func() { theForge.Delete("novox/remade") })
-	first := onTrunk("build-remade-1", "novox/remade", "git", "", map[string]any{"module": "remade", "version": "1"})
-	keptAsked(t, open.inventory, first.ID, "novox/remade", "", true)
-	if _, _, err := takeIn(ctx, open.inventory, first); err != nil {
-		t.Fatal(err)
-	}
-	if id, _ := open.inventory.SourceIdentity(ctx, "remade"); id != 100 {
-		t.Fatalf("the forge's id was not recorded: %d", id)
-	}
-	theForge.Store("novox/remade", forgeFacts{ID: 101, Guarded: true}) // deleted, and made again by an agent
-	if _, _, err := takeIn(ctx, open.inventory, onTrunk("build-remade-2", "novox/remade", "git", "",
-		map[string]any{"module": "remade", "version": "evil"})); !errors.Is(err, errNotItsSource) ||
-		!strings.Contains(err.Error(), "made again") {
-		t.Fatalf("a repository made again under the name was taken in: %v", err)
-	}
-	// And a new module from it, beside the one registered from the first, the same.
-	if _, _, err := takeIn(ctx, open.inventory, onTrunk("build-remade-3", "novox/remade", "git", "modules/other",
-		map[string]any{"module": "other", "version": "1"})); !errors.Is(err, errNotItsSource) {
-		t.Fatalf("a new module from a repository made again was taken in: %v", err)
-	}
-}
-
-func TestATerminalRequestCoversOnlyWhatItAsked(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	if err := open.inventory.RecordBuildRequest(ctx, inventory.BuildRequest{ID: "build-asked", Repository: "novox/app",
-		Seat: "git", Path: "modules/app", For: "build", AtTerminal: true}); err != nil {
-		t.Fatal(err)
-	}
-	other := onTrunk("build-asked", "agent/sudo", "git", "modules/app", map[string]any{"module": "sudo", "version": "evil"})
-	if _, _, err := takeIn(ctx, open.inventory, other); !errors.Is(err, errNotItsSource) {
-		t.Fatalf("an outcome of another repository under a terminal request's id was taken in: %v", err)
-	}
-	elsewhere := onTrunk("build-asked", "novox/app", "git", "modules/sudo", map[string]any{"module": "sudo", "version": "evil"})
-	if _, _, err := takeIn(ctx, open.inventory, elsewhere); !errors.Is(err, errNotItsSource) {
-		t.Fatalf("an outcome of another path under a terminal request's id was taken in: %v", err)
-	}
-}
-
-func TestTheServingControllerIsNeverTheTerminal(t *testing.T) {
-	t.Setenv(verbVar, "")
-	t.Setenv(link.CallerVar, "")
-	t.Setenv(servedVar, "")
-	if !startedAtTheTerminal() {
-		t.Fatal("a process started by hand is not the terminal")
-	}
-	markServed()
-	if startedAtTheTerminal() {
-		t.Fatal("the serving controller reads as the terminal")
-	}
-	child := exec.Command(os.Args[0], "-test.run=^$")
-	child.Env = os.Environ()
-	if !slices.Contains(child.Env, servedVar+"=1") {
-		t.Fatal("what the serving controller starts does not carry its mark")
-	}
-}
-
-func TestAnUnknownIdentityKeepsTheRecordedOne(t *testing.T) {
-	open := theCatalogue(t)
-	ctx := t.Context()
-	if err := open.inventory.SetSourceIdentity(ctx, "sudo", 100); err != nil {
-		t.Fatal(err)
-	}
-	if err := open.inventory.SetSourceIdentity(ctx, "sudo", 0); err != nil {
-		t.Fatal(err)
-	}
-	if id, _ := open.inventory.SourceIdentity(ctx, "sudo"); id != 100 {
-		t.Fatalf("the recorded id became %d", id)
-	}
-}
-
-func TestAModuleMovesOnTheOperatorsApproveOfTheMergeThatMovedIt(t *testing.T) {
-	const commit = "c0ffee0123456789"
-	for _, c := range []struct {
-		what    string
-		change  func(*anApprovedMerge)
-		unkept  bool
-		request string // who asked: "merge", or "build" through a verb
-		moved   bool
-	}{
-		{what: "the operator's Approve of the merged head", request: "merge", moved: true},
-		{what: "no merge mesh-delivery announced", unkept: true, request: "merge"},
-		{what: "a warrant for other heads", request: "merge", change: func(a *anApprovedMerge) {
-			a.merge.Heads = map[string]string{"novox/mesh-host@aaaaaaaaaaaa": "e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5e5"}
-		}},
-		{what: "a Decline", request: "merge", change: func(a *anApprovedMerge) {
-			a.warrant.Option, a.warrant.Label, a.merge.Option = "decline", "Decline", "decline"
-		}},
-		{what: "a person who is not the operator", request: "merge", change: func(a *anApprovedMerge) { a.warrant.By.Who = "agent" }},
-		{what: "a build asked through a verb", request: "build"},
-	} {
-		open := theCatalogue(t)
-		ctx := t.Context()
-		inv := open.inventory
-		a := approvedMerge(t)
-		a.merge.Owner, a.merge.Repo, a.merge.Number, a.merge.HeadSHA = "novox", "mesh-host", 7, "a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1a1"
-		if c.change != nil {
-			c.change(&a)
-		}
-		wasKept, wasAsk := keptDeliveryMerge, routerAskOf
-		keptDeliveryMerge = func(_ context.Context, owner, repo string, number int, head string) (deliveryMerge, bool, error) {
-			return a.merge, !c.unkept && owner == "novox" && repo == "mesh-host" && number == 7 && head == a.merge.HeadSHA, nil
-		}
-		routerAskOf = func(_ context.Context, _ *inventory.Inventory, id string) (*asks.Ask, *asks.Warrant, error) {
-			if id != a.merge.AskID {
-				t.Errorf("%s: the router was asked for %q", c.what, id)
-			}
-			return &a.ask, &a.warrant, nil
-		}
-		t.Cleanup(func() { keptDeliveryMerge, routerAskOf = wasKept, wasAsk })
-		event, _ := json.Marshal(map[string]any{"owner": "novox", "repo": "mesh-host", "base": "main", "number": 7,
-			"head_sha": a.merge.HeadSHA, "merge_commit_sha": commit})
-		if _, err := inv.AddMerge(ctx, inventory.BatchedMerge{Repository: "novox/mesh-host", Branch: "main", Commit: commit,
-			Merged: time.Now(), Heard: time.Now(), Event: event}); err != nil {
-			t.Fatal(err)
-		}
-		id := fmt.Sprintf("build-%d", time.Now().Add(time.Hour).UnixNano())
-		if err := inv.RecordBuildRequest(ctx, inventory.BuildRequest{ID: id, Repository: "novox/mesh-host", Seat: "git",
-			Path: "modules/sudo", Ref: "main", Commit: commit, For: c.request}); err != nil {
-			t.Fatal(err)
-		}
-		moved := onTrunk(id, "novox/mesh-host", "git", "modules/sudo", map[string]any{"module": "sudo", "version": "2"})
-		moved.Commit = commit
-		_, _, err := takeIn(ctx, inv, moved)
-		src, _ := inv.SourceOf(ctx, "sudo")
-		switch {
-		case c.moved && err != nil:
-			t.Errorf("%s: the move was refused: %v", c.what, err)
-		case c.moved && src.Repository != "novox/mesh-host":
-			t.Errorf("%s: sudo is built from %q", c.what, src.Repository)
-		case !c.moved && !errors.Is(err, errNotItsSource):
-			t.Errorf("%s: the move was not refused as ADR 0266 has it: %v", c.what, err)
-		case !c.moved && src.Repository != "novox/mesh-catalog":
-			t.Errorf("%s: a refused move changed sudo's source to %q", c.what, src.Repository)
-		}
-	}
-}

cmd/mesh-controller/build_source_test.go

@@ -1,128 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"hash/fnv"
-	"strings"
-	"sync"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The routes to root a review of ADR 0266 found (novox/hq ADR 0266 §7): an agent makes a repository of its
-// own — or forks one the mesh builds from — commits a module.json naming a module the mesh runs everywhere
-// (`sudo`, granting itself a rule without a password; `mesh-host`, the node-engine), and asks the `build` verb
-// for it. Its outcome was registered under that name from the agent's repository, and the next push sent it.
-
-// onTrunk is an outcome of a commit on its repository's trunk, as the build seat says it.
-func onTrunk(id, repository, seat, path string, manifest map[string]any) link.BuildResult {
-	raw, _ := json.Marshal(manifest)
-	r := link.BuildResult{ID: id, Repository: "http://forge.internal:20000/" + repository + ".git", Path: path,
-		Ref: "main", On: "anchor", Commit: "c0ffee0123456789", Manifest: raw,
-		Trunk: "main", OnTrunk: true, Branches: []string{"main"}}
-	if seat != "" {
-		r.Source = &link.SourceOnSeat{Seat: seat, Repository: repository}
-	}
-	return r
-}
-
-// keptAsked keeps a build request as the asker would: through a verb, or at the terminal.
-func keptAsked(t *testing.T, inv *inventory.Inventory, id, repository, path string, atTerminal bool) {
-	t.Helper()
-	if err := inv.RecordBuildRequest(t.Context(), inventory.BuildRequest{ID: id, Repository: repository, Seat: "git",
-		Path: path, For: "build", AtTerminal: atTerminal}); err != nil {
-		t.Fatal(err)
-	}
-}
-
-// theCatalogue is a mesh whose sudo is built from the catalogue repository and whose node-engine from its own.
-
-// The operator at the terminal may still move a module, or add one from a new repository.
-
-// The delivery's flow is untouched: a merge's rebuild of a module from its own repository, and a merge adding
-// a module to a repository the catalogue builds from (novox/hq issue 300), are registered with no terminal.
-
-// Through a verb, a build of a repository the catalogue builds nothing from is not even asked: the build node
-// would run what the agent wrote.
-
-// asTheOperator keeps a build as asked at the controller's terminal, as the operator's first build of a module
-// from a repository the catalogue does not yet build from is (novox/hq ADR 0266), and hands it back.
-func asTheOperator(t *testing.T, inv *inventory.Inventory, b link.BuildResult) link.BuildResult {
-	t.Helper()
-	repository, seat := b.Repository, ""
-	if b.Source != nil {
-		repository, seat = b.Source.Repository, b.Source.Seat
-	}
-	if err := inv.RecordBuildRequest(t.Context(), inventory.BuildRequest{ID: b.ID, Repository: repository, Seat: seat,
-		Path: b.Path, For: "build", AtTerminal: true}); err != nil {
-		t.Fatal(err)
-	}
-	return b
-}
-
-// A rollback puts back only a build of the module's own repository: an agent's build of the module's name,
-// recorded and refused, at the very commit the machine ran before (a fork carries it), is never registered by
-// the back door of a failed gate.
-
-// theForge is what the forge says in a test, by owner/name: a repository not named here is protected as a
-// trunk must be, with an id of its own.
-var theForge sync.Map
-
-func init() {
-	askTheForge = func(_ context.Context, owner, repo, _ string) (forgeFacts, error) {
-		if said, ok := theForge.Load(owner + "/" + repo); ok {
-			switch f := said.(type) {
-			case error:
-				return forgeFacts{}, f
-			case forgeFacts:
-				return f, nil
-			}
-		}
-		h := fnv.New32a()
-		_, _ = h.Write([]byte(owner + "/" + repo))
-		return forgeFacts{ID: int64(h.Sum32()), Guarded: true}, nil
-	}
-}
-
-// A module's trunk the forge does not protect — direct pushes, no required status — or a forge that cannot say,
-// registers nothing through a verb: the trunk rule means nothing on a branch anyone pushes to.
-
-// A repository deleted and made again under the module's repository's name is another repository: the forge's
-// id, recorded at registration, tells them apart.
-
-// The terminal's mark is the operator's for the repository and path they asked: an outcome of another, under that
-// build's id, is not theirs.
-
-// The serving controller, and everything it starts, is never the terminal: a build asked in it reads as asked
-// through the mesh even when no verb and no caller is named.
-
-// The forge applies one rule to a branch: the rule named for it, else the first glob that covers it. A stronger
-// rule later in the list is not what guards the branch, and is not read as if it were (the confirmation review).
-func TestTheRuleJudgedIsTheOneTheForgeApplies(t *testing.T) {
-	guarded := protectionRule{Rule: "*", RequiredStatuses: []string{"mesh/merge-gate"}}
-	open := protectionRule{Rule: "main", Push: true, RequiredStatuses: []string{"mesh/merge-gate"}}
-	if f := judgedRule([]protectionRule{guarded, open}, "main"); f.Guarded {
-		t.Error("an exact rule letting pushes was passed over for a glob that guards")
-	}
-	if f := judgedRule([]protectionRule{{Rule: "ma*", RequiredStatuses: nil}, {Rule: "*", RequiredStatuses: []string{"x"}}},
-		"main"); f.Guarded || !strings.Contains(f.Why, "ma*") {
-		t.Errorf("the first glob covering the branch was not the one judged: %+v", f)
-	}
-	if f := judgedRule([]protectionRule{{Rule: "release/*"}, {Rule: "main", RequiredStatuses: []string{"x"}}}, "main"); !f.Guarded {
-		t.Errorf("the rule named for the branch was not judged: %+v", f)
-	}
-	if f := judgedRule(nil, "main"); f.Guarded {
-		t.Error("no rule is no protection")
-	}
-}
-
-// An id the forge could not give keeps the id already recorded.
-
-// **The operator's Approve of a reviewed group registers a moved module from its new repository** (novox/hq ADR 0420 §7,
-// issue 1025). sudo is built from the catalogue; a merge into the repository of node-engine's module, announced by
-// mesh-delivery with the ask it merged on, brings its build from there. Accepted with the operator's Approve of the
-// merged head; refused with no kept merge, a warrant for other heads, a Decline, a person who is not the operator, and
-// through a verb.

cmd/mesh-controller/build_test.go

@@ -1,9 +1,13 @@
 package main
 
 import (
+	"encoding/json"
+	"errors"
+	"strings"
 	"testing"
 	"time"
 
+	"github.com/novox/mesh-controller/internal/inventory"
 	"github.com/novox/mesh-controller/internal/link"
 )
 
@@ -11,12 +15,126 @@ import (
 // the module registered with its source as the seat and path when the request said so — never the
 // URL. A definition naming an installation is recorded and not registered; a failure is recorded
 // and said.
+func TestABuildHeardIsRecordedAndRegistered(t *testing.T) {
+	open := aMesh(t)
+	ctx := t.Context()
+	manifest, _ := json.Marshal(map[string]any{"module": "shop", "version": "3"})
+	m, _, err := takeIn(ctx, open.inventory, link.BuildResult{
+		ID: "b-1", Repository: "http://forge.internal:20000/novox/shop.git", Path: "modules/shop",
+		Ref: "main", On: "anchor", Commit: "abcdef0123", Manifest: manifest,
+		Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/shop"},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if m.Module != "shop" {
+		t.Fatalf("registered %q", m.Module)
+	}
+	shelf, err := open.inventory.Catalogue(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, held := shelf["shop"]; !held {
+		t.Fatal("the module a heard build produced is not in the catalogue")
+	}
+	src, err := open.inventory.SourceOf(ctx, "shop")
+	if err != nil || src.Seat != "git" || src.Repository != "novox/shop" || src.BuiltFrom != "abcdef0123" {
+		t.Fatalf("the source is the seat and the path, never the URL: %+v %v", src, err)
+	}
+	builds, err := open.inventory.Builds(ctx, "shop", 5)
+	if err != nil || len(builds) != 1 || builds[0].ID != "b-1" {
+		t.Fatalf("the build is not recorded once: %v %v", builds, err)
+	}
+
+	named, _ := json.Marshal(map[string]any{"module": "idp", "version": "1", "resources": []any{
+		map[string]any{"id": "server", "type": "container", "image": "x@sha256:aa",
+			"env": map[string]any{"KC_HOSTNAME": "https://login.mesh-one.be"}}}})
+	_, _, err = takeIn(ctx, open.inventory, link.BuildResult{
+		ID: "b-2", Repository: "/r", On: "anchor", Commit: "0123456789", Manifest: named})
+	if err == nil || !strings.Contains(err.Error(), "does not register it") {
+		t.Fatalf("a definition naming an installation was taken in: %v", err)
+	}
+	if shelf, _ := open.inventory.Catalogue(ctx); shelf["idp"].Module != "" {
+		t.Fatal("the refused module was registered anyway")
+	}
+	if builds, _ := open.inventory.Builds(ctx, "idp", 5); len(builds) != 1 {
+		t.Fatalf("the refused build was not recorded: %v", builds)
+	}
+
+	_, _, err = takeIn(ctx, open.inventory, link.BuildResult{ID: "b-3", Repository: "/r", On: "anchor", Failed: "no compiler"})
+	if err == nil || !strings.Contains(err.Error(), "no compiler") {
+		t.Fatalf("a failure is said in the builder's words: %v", err)
+	}
+}
 
 // novox/hq 04-ISSUES/215: a build asked at a commit is recorded as built from that commit, and the
 // module keeps following the branch it followed — a new one, the default branch.
+func TestABuildAtACommitKeepsTheBranchTheModuleFollows(t *testing.T) {
+	open := aMesh(t)
+	ctx := t.Context()
+	manifest, _ := json.Marshal(map[string]any{"module": "unifi", "version": "1"})
+	result := func(id, ref, commit string) link.BuildResult {
+		return link.BuildResult{ID: id, Repository: "http://forge.internal:20000/novox/mesh-catalog.git",
+			Path: "modules/unifi", Ref: ref, On: "anchor", Commit: commit, Manifest: manifest,
+			Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/mesh-catalog"}}
+	}
+	if _, _, err := takeIn(ctx, open.inventory, result("b-1", "main", "1111111aaaa")); err != nil {
+		t.Fatal(err)
+	}
+	if _, _, err := takeIn(ctx, open.inventory, result("b-2", "9c97a8a", "9c97a8a1d2c3")); err != nil {
+		t.Fatal(err)
+	}
+	src, err := open.inventory.SourceOf(ctx, "unifi")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if src.Ref != "main" || src.BuiltFrom != "9c97a8a1d2c3" {
+		t.Errorf("after a build at a commit the module follows %q, built from %q; want main, 9c97a8a1d2c3", src.Ref, src.BuiltFrom)
+	}
+
+	// One new to the catalogue, first built at a commit, follows the default branch.
+	other, _ := json.Marshal(map[string]any{"module": "letta", "version": "1"})
+	r := result("b-3", "deadbeef", "deadbeefcafe")
+	r.Manifest, r.Path = other, "modules/letta"
+	if _, _, err := takeIn(ctx, open.inventory, r); err != nil {
+		t.Fatal(err)
+	}
+	if src, _ := open.inventory.SourceOf(ctx, "letta"); src.Ref != "" {
+		t.Errorf("a module first built at a commit follows %q, want the default branch", src.Ref)
+	}
+}
 
 // novox/hq 04-ISSUES/219: an older request heard after a newer one is recorded and not registered,
 // so a push sends what the newer request built.
+func TestAnOlderBuildHeardLaterDoesNotReplaceTheNewer(t *testing.T) {
+	open := aMesh(t)
+	ctx := t.Context()
+	older := time.Date(2026, 10, 3, 21, 33, 45, 0, time.UTC)
+	newer := time.Date(2026, 10, 3, 21, 51, 57, 0, time.UTC)
+	result := func(asked time.Time, image string) link.BuildResult {
+		manifest, _ := json.Marshal(map[string]any{"module": "postgres", "version": image})
+		return link.BuildResult{ID: link.NewBuildID(asked), Repository: "http://forge.internal:20000/novox/mesh-catalog.git",
+			Path: "modules/postgres", Ref: "main", On: "anchor", Commit: "efff5415", Manifest: manifest,
+			Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/mesh-catalog"}}
+	}
+	if _, _, err := takeIn(ctx, open.inventory, result(newer, "4bcd5f73")); err != nil {
+		t.Fatal(err)
+	}
+	_, _, err := takeIn(ctx, open.inventory, result(older, "0ab07fa9"))
+	if !errors.Is(err, inventory.ErrSuperseded) {
+		t.Fatalf("the older request's outcome was taken in as current: %v", err)
+	}
+	shelf, err := open.inventory.Catalogue(ctx)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got := shelf["postgres"].Version; got != "4bcd5f73" {
+		t.Errorf("postgres is %q; want the newer request's 4bcd5f73", got)
+	}
+	if builds, _ := open.inventory.Builds(ctx, "postgres", 5); len(builds) != 2 {
+		t.Errorf("the late build was not recorded: %v", builds)
+	}
+}
 
 func TestABuildIDSaysWhenItWasAsked(t *testing.T) {
 	at := time.Date(2026, 10, 3, 21, 51, 57, 392539762, time.UTC)

cmd/mesh-controller/bus_step.go

@@ -1,410 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"flag"
-	"fmt"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/nats-io/nats.go"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The bus as a planned step (novox/hq to-be 45 §8, ADR 0227 rule 8, ADR 0236).
-//
-// **A bus upgrade is never rolled out.** The bus carries every declaration, every report and the
-// controller's own lease; a new bus build that does not come up is a mesh nobody can tell anything,
-// and a version whose data format moved (2.10 → 2.11) cannot be undone by putting the old one back.
-// So nothing sends a new bus build on its own: its policy is `record` whatever anyone says (the
-// catalogue's DerivedUpgrade, and `upgrade` refuses a roll-out), a plan builds it and sends nothing, a
-// cascade holds the machine (ADR 0221), and a push naming that machine is refused while a new bus build
-// waits for it (busHeld). The one way is this verb: a person, with why, the streams snapshotted first,
-// whether it can be reverted said before it starts, the step said as `bus-maintenance` while it runs,
-// and every stream, durable consumer and a round trip checked after (H-bus) — or the step said failed,
-// with its snapshot as the way back.
-
-// busStepProbe is the registry's row for the step; its kinds.
-const (
-	busStepProbe         = "DB"
-	kindBusMaintenance   = "bus-maintenance"
-	kindBusUpgradeFailed = "bus-upgrade-failed"
-)
-
-// busStepBound is how long after its start a bus upgrade must be followed by a healthy bus.
-var busStepBound = 15 * time.Minute
-
-// takeBusSnapshot snapshots every stream before a bus upgrade and answers where the snapshot is: the bus
-// machine's backup holder backs the bus module up now, whose dump is the streams' snapshot (novox/hq ADR
-// 0235). A variable so a test takes none. A person who took one by hand says where with --snapshot-taken,
-// and then none is taken — for a bus whose module does not yet carry the snapshot program.
-var takeBusSnapshot = snapshotTheBusNow
-
-// busPending is what a bus upgrade would do: the bus's module, the machines running it, and, per
-// machine, the build it was last sent against the build the mesh holds. Empty machines: the mesh holds
-// no bus module.
-type busPending struct {
-	module   string
-	machines []string
-	from     map[string]string
-	to       string
-	// same are the commits whose build was made from the same source as the build the mesh holds, or
-	// made the same artifacts and manifest (novox/hq issue 280).
-	same map[string]bool
-}
-
-// moves is whether sending the machine would replace its bus: a build it was not last sent, unless the
-// two builds were made from the same source, or made the same artifacts from the same manifest — a
-// rebuild of the same source for another module's merge changes nothing the machine runs, whatever
-// image digest it made (novox/hq issue 280).
-func (b busPending) moves(machine string) bool {
-	from, known := b.from[machine]
-	if b.module == "" || b.to == "" || (known && sameCommit(from, b.to)) {
-		return false
-	}
-	return !known || !b.same[from]
-}
-
-// pendingBus reads what a bus upgrade would do.
-func pendingBus(ctx context.Context, inv *inventory.Inventory) (busPending, error) {
-	var b busPending
-	shelf, err := inv.Catalogue(ctx)
-	if err != nil {
-		return b, err
-	}
-	for name, m := range shelf {
-		if catalogue.ProvidesBus(m) {
-			b.module = name
-		}
-	}
-	if b.module == "" {
-		return b, nil
-	}
-	current, err := inv.CurrentBuilds(ctx)
-	if err != nil {
-		return b, err
-	}
-	b.to = current[b.module].Commit
-	if b.machines, err = inv.Running(ctx, b.module); err != nil {
-		return b, err
-	}
-	b.from, b.same = map[string]string{}, map[string]bool{}
-	made, err := inv.BuildFingerprints(ctx, b.module)
-	if err != nil {
-		return b, err
-	}
-	for commit, refs := range made {
-		b.same[commit] = refs != "" && refs == made[b.to]
-	}
-	sources, err := inv.BuildSourceFingerprints(ctx, b.module)
-	if err != nil {
-		return b, err
-	}
-	for commit, src := range sources {
-		if src != "" && src == sources[b.to] {
-			b.same[commit] = true
-		}
-	}
-	for _, n := range b.machines {
-		sent, known, err := inv.SentBuilds(ctx, n)
-		if err != nil {
-			return b, err
-		}
-		if known {
-			if c, carried := sent[b.module]; carried {
-				b.from[n] = c
-			}
-		}
-	}
-	return b, nil
-}
-
-// busHeld names the machines a push may not send because sending them would replace the bus: the
-// planned step's, not a push's (ADR 0236). Said with the remedy.
-func busHeld(ctx context.Context, inv *inventory.Inventory, machines []string) (map[string]string, error) {
-	b, err := pendingBus(ctx, inv)
-	if err != nil {
-		return nil, err
-	}
-	out := map[string]string{}
-	for _, n := range machines {
-		for _, holder := range b.machines {
-			if n == holder && b.moves(n) {
-				out[n] = fmt.Sprintf("sending %s would replace the bus (%s %s → %s), which is a planned step: "+
-					"`bus upgrade --why …` snapshots its streams first and checks them after (novox/hq ADR 0236)",
-					n, b.module, short(orNotKnown(b.from[n])), short(b.to))
-			}
-		}
-	}
-	return out, nil
-}
-
-// busCommand is `bus` — what a bus upgrade would do and how the last went — and `bus upgrade`.
-func busCommand(ctx context.Context, args []string) error {
-	sub := ""
-	if len(args) > 0 && !strings.HasPrefix(args[0], "-") {
-		sub, args = args[0], args[1:]
-	}
-	set := flag.NewFlagSet("bus", flag.ContinueOnError)
-	snapshot := set.String("snapshot-taken", "", "where the streams' snapshot a person took is, while the mesh takes none itself")
-	reversible := set.Bool("reversible", false, "the new version can be undone by putting the old one back")
-	irreversible := set.Bool("irreversible", false, "the new version cannot be undone by putting the old one back, "+
-		"and this is the person's explicit word that it runs anyway")
-	why := addHandActFlags(set)
-	if rest, err := parseAround(set, args); err != nil {
-		return err
-	} else if len(rest) > 0 {
-		return errors.New("bus [upgrade --why … --reversible|--irreversible [--snapshot-taken <where>]]")
-	}
-	switch sub {
-	case "":
-		return busStatus(ctx)
-	case "upgrade":
-	default:
-		return fmt.Errorf("bus says what a bus upgrade would do, or `bus upgrade` — not %q", sub)
-	}
-	// Everything refused before anything is done.
-	if err := why.require("bus upgrade"); err != nil {
-		return err
-	}
-	if *reversible == *irreversible {
-		return errors.New("bus upgrade says, before it starts, whether the new version can be undone by putting the " +
-			"old one back: --reversible, or --irreversible as your explicit word that it runs anyway (to-be 45 §8). " +
-			"Nothing was done")
-	}
-	open, err := openStores(ctx)
-	if err != nil {
-		return err
-	}
-	defer open.Close()
-	inv := open.inventory
-	b, err := pendingBus(ctx, inv)
-	if err != nil {
-		return err
-	}
-	if b.module == "" {
-		return errors.New("the mesh holds no module that provides its bus: there is nothing to upgrade")
-	}
-	var moving []string
-	for _, n := range b.machines {
-		if b.moves(n) {
-			moving = append(moving, n)
-		}
-	}
-	if len(moving) == 0 {
-		fmt.Printf("every machine running %s runs the build the mesh holds (%s): nothing to upgrade\n", b.module, short(b.to))
-		return nil
-	}
-	where := strings.TrimSpace(*snapshot)
-	if where == "" {
-		for _, n := range moving {
-			fmt.Printf("snapshotting the bus's streams on %s first (its backup holder, ADR 0235)…\n", n)
-			if where, err = takeBusSnapshot(ctx, b.module, n); err != nil {
-				return fmt.Errorf("the streams could not be snapshotted, so the bus is not replaced: %w — a snapshot "+
-					"taken by hand is said with --snapshot-taken <where>", err)
-			}
-		}
-	}
-	from := map[string]bool{}
-	for _, n := range moving {
-		from[orNotKnown(b.from[n])] = true
-	}
-	step, err := inv.StartBusStep(ctx, inventory.BusStep{Module: b.module, Machines: moving,
-		From: strings.Join(sortedKeys(from), ", "), To: b.to, Snapshot: where, Reversible: *reversible,
-		By: link.Caller(), Why: strings.TrimSpace(*why.why)})
-	if err != nil {
-		return err
-	}
-	cause := "bus-upgrade"
-	if strings.TrimSpace(*why.cause) == "" {
-		why.cause = &cause
-	}
-	why.record(ctx, "bus upgrade", append([]string{b.module}, moving...))
-	fmt.Printf("bus upgrade %d: %s %s → %s on %s; streams snapshotted at %s; %s\n", step.ID, b.module, step.From,
-		short(b.to), strings.Join(moving, ", "), where, map[bool]string{true: "reversible: putting the old build back undoes it",
-			false: "NOT reversible: the snapshot is the only way back"}[*reversible])
-	sent, err := sendRollout(withBusStep(withScope(ctx, sendScope{person: true})), open, moving)
-	if err != nil {
-		_ = inv.EndBusStep(ctx, step.ID, "failed", "the send was refused: "+err.Error())
-		return fmt.Errorf("the bus's machine could not be sent its new build: %w — nothing was replaced", err)
-	}
-	fmt.Printf("sent %s; `bus-maintenance` is open until the bus answers healthy again — every stream, every durable "+
-		"consumer, a round trip to the machines (H-bus) — within %s, or the step is said failed with its snapshot "+
-		"as the way back. `bus` says how it went\n", strings.Join(sent, ", "), busStepBound)
-	return nil
-}
-
-// busStatus is `bus`: what an upgrade would do, and the last step.
-func busStatus(ctx context.Context) error {
-	open, err := openStores(ctx)
-	if err != nil {
-		return err
-	}
-	defer open.Close()
-	b, err := pendingBus(ctx, open.inventory)
-	if err != nil {
-		return err
-	}
-	if b.module == "" {
-		fmt.Println("the mesh holds no module that provides its bus")
-	} else {
-		fmt.Printf("the bus is %s, built %s, on %s; never rolled out — a planned step (`bus upgrade`)\n", b.module,
-			short(b.to), orNone(strings.Join(b.machines, ", ")))
-		for _, n := range b.machines {
-			state := "runs it"
-			if b.moves(n) {
-				state = "runs " + short(orNotKnown(b.from[n])) + ": `bus upgrade` replaces it"
-			}
-			fmt.Printf("  %-10s %s\n", n, state)
-		}
-	}
-	fmt.Println("  `bus upgrade` has the bus machine's backup holder snapshot the streams first (ADR 0235)")
-	s, found, err := open.inventory.LatestBusStep(ctx)
-	if err != nil || !found {
-		return err
-	}
-	state := "running since " + s.Started.Local().Format("2006-01-02 15:04")
-	if s.Ended != nil {
-		state = s.Outcome + " at " + s.Ended.Local().Format("2006-01-02 15:04")
-	}
-	fmt.Printf("last step %d: %s → %s on %s by %s (%s): %s; snapshot %s\n", s.ID, s.From, short(s.To),
-		strings.Join(s.Machines, ", "), orNone(s.By), s.Why, state, s.Snapshot)
-	if s.Found != "" {
-		fmt.Printf("  %s\n", s.Found)
-	}
-	return nil
-}
-
-// probeBusStep is DB: a bus upgrade running is said as `bus-maintenance`; the bus healthy again after
-// the machines reported the new build ends it done; past its bound, unhealthy, it ends failed and is
-// said — urgent, with its snapshot — while the bus is still not healthy.
-func probeBusStep(ctx context.Context, d *doctor) ([]conditions.Observation, error) {
-	inv := d.open.inventory
-	s, found, err := inv.LatestBusStep(ctx)
-	if err != nil || !found {
-		return nil, err
-	}
-	if s.Ended != nil && s.Outcome != "failed" {
-		return nil, nil
-	}
-	problems, err := busHealth(ctx, d)
-	if err != nil {
-		return nil, err
-	}
-	reports, err := inv.LastReports(ctx)
-	if err != nil {
-		return nil, err
-	}
-	applied := true
-	for _, r := range reports {
-		for _, n := range s.Machines {
-			if r.Node == n && (!r.Current || r.Outcome != inventory.OutcomeApplied || r.At == nil || r.At.Before(s.Started)) {
-				applied = false
-				problems = append(problems, n+" has not reported the new bus applied")
-			}
-		}
-	}
-	id := s.Module
-	if s.Ended == nil {
-		switch {
-		case applied && len(problems) == 0:
-			return nil, inv.EndBusStep(ctx, s.ID, "done", "the bus answered healthy after the upgrade")
-		case time.Since(s.Started) > busStepBound:
-			found := strings.Join(problems, "; ")
-			if err := inv.EndBusStep(ctx, s.ID, "failed", found); err != nil {
-				return nil, err
-			}
-			s.Found = found
-		default:
-			return []conditions.Observation{{Scope: conditions.ScopeBus, ID: id, Token: "maintenance",
-				Kind: kindBusMaintenance, Severity: conditions.Warning,
-				Summary: fmt.Sprintf("the bus is being upgraded (step %d, %s → %s on %s, by %s: %s); its snapshot is %s",
-					s.ID, s.From, short(s.To), strings.Join(s.Machines, ", "), orNone(s.By), s.Why, s.Snapshot),
-				Said: orNone(strings.Join(problems, "; "))}}, nil
-		}
-	}
-	if len(problems) == 0 {
-		return nil, nil // failed, and healthy since: nothing wrong now
-	}
-	way := "put the old build back"
-	if !s.Reversible {
-		way = "restore the snapshot"
-	}
-	return []conditions.Observation{{Scope: conditions.ScopeBus, ID: id, Token: "upgrade-failed",
-		Kind: kindBusUpgradeFailed, Severity: conditions.Urgent, Resolver: conditions.ResolverOperator,
-		Summary: fmt.Sprintf("the bus upgrade (step %d, %s → %s) did not end healthy within %s: %s — the way back is to %s (%s)",
-			s.ID, s.From, short(s.To), busStepBound, strings.Join(problems, "; "), way, s.Snapshot)}}, nil
-}
-
-func sortedKeys(set map[string]bool) []string {
-	out := make([]string, 0, len(set))
-	for k := range set {
-		out = append(out, k)
-	}
-	sort.Strings(out)
-	return out
-}
-
-// busSnapshotWithin is how long the bus machine's backup holder is given to take the bus's snapshot.
-var busSnapshotWithin = 15 * time.Minute
-
-// snapshotTheBusNow asks the bus machine's backup holder to back the bus module up now — its dump is
-// the streams' snapshot (novox/hq ADR 0235) — and waits until it says a backup newer than the ask:
-// where the snapshot is, as a person reads it. The serving controller's connection, or one of its own.
-func snapshotTheBusNow(ctx context.Context, module, node string) (string, error) {
-	var where string
-	err := onTheBus(func(conn *nats.Conn) error {
-		asked := time.Now()
-		answer, err := link.AskSeatTool(ctx, conn, catalogue.BackupSeat, "now", node,
-			map[string]any{"module": module}, 30*time.Second)
-		if err != nil {
-			return fmt.Errorf("%s's backup holder was not asked to take the bus's snapshot: %w", node, err)
-		}
-		if answer.Error != "" {
-			return fmt.Errorf("%s's backup holder would not take the bus's snapshot: %s", node, answer.Error)
-		}
-		deadline := time.Now().Add(busSnapshotWithin)
-		for {
-			answer, err := link.AskSeatTool(ctx, conn, catalogue.BackupSeat, "backed-up", node, map[string]any{}, 10*time.Second)
-			if err == nil && answer.Error == "" {
-				if measured, err := readHolder(answer.Result); err == nil {
-					for item, m := range measured[module] {
-						if m.LastBackup != nil && m.LastBackup.After(asked) && m.Error == "" {
-							where = fmt.Sprintf("%s's restore point of %s (%s) taken %s", node, module, item,
-								m.LastBackup.UTC().Format(time.RFC3339))
-							return nil
-						}
-					}
-				}
-			}
-			if time.Now().After(deadline) {
-				return fmt.Errorf("%s's backup holder did not say the bus's snapshot was taken within %s; the bus is "+
-					"not replaced", node, busSnapshotWithin)
-			}
-			select {
-			case <-ctx.Done():
-				return ctx.Err()
-			case <-time.After(10 * time.Second):
-			}
-		}
-	})
-	return where, err
-}
-
-// errBusWaits is a send refused because it would replace the bus outside its planned step.
-var errBusWaits = errors.New("a new bus build waits for its planned step")
-
-type busStepKey struct{}
-
-// withBusStep marks a send as the bus's planned step: the one send that may replace the bus.
-func withBusStep(ctx context.Context) context.Context {
-	return context.WithValue(ctx, busStepKey{}, true)
-}
-
-func busStepSending(ctx context.Context) bool { on, _ := ctx.Value(busStepKey{}).(bool); return on }

cmd/mesh-controller/bus_users_closed_test.go

@@ -1,92 +0,0 @@
-package main
-
-import (
-	"errors"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **Every user's slow consumer is S9's, not the controller's alone** (novox/hq ADR 0357, issue 270). On
-// 2026-10-07 the bus closed two clients on the laptop as slow consumers and nothing raised a condition:
-// the controller heard only its own connection. Said by the bus module and read back, a user the bus
-// closes is one condition naming the module and its machine, raised at the first look and cleared an hour
-// after the last closure.
-func TestAUserTheBusClosedAsASlowConsumerIsOneConditionNamingItsModuleAndMachine(t *testing.T) {
-	closed := time.Date(2026, 10, 14, 12, 0, 0, 0, time.UTC)
-	now := closed.Add(20 * time.Second)
-	store := conditions.NewInMemory()
-	k := conditions.NewKeeper(t.Context(), conditions.Options{Store: store, History: store,
-		Teller: &conditions.Told{}, Now: func() time.Time { return now }})
-	t.Cleanup(func() { k.Close(t.Context()) })
-
-	advisories := link.BusClosures([]link.BusClosure{
-		{User: "laptop.claude-code", CID: 10, Reason: "Slow Consumer (Write Deadline)", Opened: closed.Add(-time.Hour),
-			Closed: closed.Add(-10 * time.Minute)},
-		{User: "laptop.claude-code", CID: 44, Reason: "Slow Consumer (Write Deadline)", Opened: closed.Add(-time.Minute),
-			Closed: closed},
-		{User: "anchor.desk", CID: 7, Reason: "Maximum Message Payload Exceeded", Opened: closed.Add(-time.Hour),
-			Closed: closed},
-	}, []string{link.AdvisorySlowConsumer, link.AdvisorySlowConsumer, link.AdvisoryConnectionClosed}, closed.Add(-time.Hour))
-	look := func() {
-		t.Helper()
-		f := &signalFacts{now: now, host: "anchor", advisories: advisories}
-		if err := k.Reconcile(t.Context(), "S9", watchAdvisories(f)); err != nil {
-			t.Fatal(err)
-		}
-	}
-	look()
-
-	slow, found, err := conditions.ReadOne(t.Context(), store, "bus.laptop.claude-code.slow-consumer")
-	if err != nil || !found {
-		t.Fatalf("no slow-consumer condition for the user: %v %v", found, err)
-	}
-	if slow.Subject.Machine != "laptop" || slow.Observations != 2 || !slow.LastObserved.Equal(closed) {
-		t.Fatalf("the slow consumer is said on %q, %d closure(s), last %s: %+v", slow.Subject.Machine, slow.Observations,
-			slow.LastObserved, slow)
-	}
-	if !strings.Contains(slow.Summary, "claude-code on laptop") || strings.Contains(slow.Summary, "laptop.claude-code") {
-		t.Fatalf("the summary does not name the module in words, or carries the dotted user: %q", slow.Summary)
-	}
-	if !strings.Contains(slow.Headline, "Claude-code on laptop") {
-		t.Fatalf("the headline is %q", slow.Headline)
-	}
-	cut, found, err := conditions.ReadOne(t.Context(), store, "bus.anchor.desk.connection-closed")
-	if err != nil || !found || cut.Subject.Machine != "anchor" || !strings.Contains(cut.Summary, "maximum message payload exceeded") {
-		t.Fatalf("the user cut off for breaking the bus's rules: %v %v %+v", found, err, cut)
-	}
-
-	// An hour after the newest closure without another, both clear.
-	now = closed.Add(time.Hour + time.Minute)
-	look()
-	for _, key := range []string{"bus.laptop.claude-code.slow-consumer", "bus.anchor.desk.connection-closed"} {
-		if _, found, _ := k.Get(t.Context(), key); found {
-			t.Fatalf("%s is still open an hour after the last closure", key)
-		}
-	}
-}
-
-// **A read of the bus module's events that fails does not blind S9** (review of #326): the controller's own
-// signals are still said, and the failed read is a condition of its own.
-func TestABusModuleReadThatFailsKeepsTheControllersOwnSignals(t *testing.T) {
-	at := time.Date(2026, 10, 14, 12, 0, 0, 0, time.UTC)
-	f := &signalFacts{now: at.Add(time.Minute), host: "anchor",
-		advisories: []link.Advisory{{Kind: link.AdvisorySlowConsumer, ID: "controller", Said: "the controller fell behind",
-			First: at, Last: at, Count: 1}},
-		busFaultsErr: errors.New("nats: timeout")}
-	keys := map[string]bool{}
-	for _, o := range watchAdvisories(f) {
-		keys[o.Key()] = true
-	}
-	if !keys["bus.controller.slow-consumer"] || !keys["bus.bus-module.bus-faults-unread"] {
-		t.Fatalf("observed %v: the controller's own slow consumer and the unread events, both", keys)
-	}
-	for _, row := range signalsTable {
-		if row.Row == "S9" && row.needs(f) != nil {
-			t.Fatal("the S9 row went blind for a read of the bus module's events")
-		}
-	}
-}

cmd/mesh-controller/bus_waits.go

@@ -1,195 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"sort"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// A send held for the bus's planned step (novox/hq issue 336).
-//
-// **A wait only a person can end is said to that person at once.** No send replaces the bus but its planned
-// step (sendToEach, ADR 0236), and the step is a person's `bus upgrade`. So while a new bus build waits, every
-// walk whose tier sends to the bus's machine is refused, and tries again each tick. The refusal was kept only
-// as the walk's note; nothing was raised, and the operator found the hold by asking why a walk did not move.
-// Row S17 raises it on the first tick after the first refusal, in the bus's scope, for the operator: what
-// waits, behind which bus build, since when, and the verb. A walk held only by it is not late, so S3 leaves it
-// out, as it leaves out a walk under a paused build seat. It clears once the bus's machine has been sent the
-// build the mesh holds — the step was taken, and no send is refused for the bus any more — whatever the walks'
-// notes still say. Whether the new bus came up healthy is the step's own condition (probe DB).
-
-// kindBusStepWaiting is S17's kind: bus.<module>.step-waiting.
-const kindBusStepWaiting = "bus-step-waiting"
-
-// busFacts is a new bus build waiting for its planned step, and the sends held for it.
-type busFacts struct {
-	module, to string
-	// from is the build each machine of the bus runs; machines those whose bus the step would replace.
-	from     map[string]string
-	machines []string
-	waits    []busWaitFacts
-}
-
-// busWaitFacts is one walk whose send was refused because it would replace the bus.
-type busWaitFacts struct {
-	plan, repository, commit string
-	// modules are what its tier sends: what waits.
-	modules []string
-	// since is the first refusal: as this controller saw it, or, read back, the save that kept the refusal.
-	since time.Time
-}
-
-// busRefusedFirst is when this controller first saw each walk refused for the bus's step. The walk's note
-// keeps the refusal across a restart; this keeps its moment more exactly than the walk's last save.
-var busRefusedFirst = &firstSeen{at: map[string]time.Time{}}
-
-type firstSeen struct {
-	mu sync.Mutex
-	at map[string]time.Time
-}
-
-// mark keeps the first moment an id was seen.
-func (s *firstSeen) mark(id string, at time.Time) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	if _, seen := s.at[id]; !seen {
-		s.at[id] = at
-	}
-}
-
-// of is when an id was first seen; zero when it was not.
-func (s *firstSeen) of(id string) time.Time {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	return s.at[id]
-}
-
-// keepOnly forgets every id not given: a walk no longer held is not held since then.
-func (s *firstSeen) keepOnly(ids map[string]bool) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	for id := range s.at {
-		if !ids[id] {
-			delete(s.at, id)
-		}
-	}
-}
-
-// refusedForTheBus is whether an error is the refusal of a send for the bus's planned step.
-func refusedForTheBus(err error) bool {
-	return err != nil && strings.Contains(err.Error(), errBusWaits.Error())
-}
-
-// busWaitsOf is the sends held for the bus's step, from the open walks: each walk not waiting for its
-// delivery's word whose note keeps a refusal for this very bus build, while the build would still replace
-// the bus on a machine. first is when this controller first saw a walk refused, zero when it did not.
-func busWaitsOf(plans []inventory.Plan, b busPending, first func(string) time.Time) busFacts {
-	f := busFacts{module: b.module, to: b.to, from: b.from}
-	for _, n := range b.machines {
-		if b.moves(n) {
-			f.machines = append(f.machines, n)
-		}
-	}
-	if len(f.machines) == 0 {
-		return f
-	}
-	for _, p := range plans {
-		if !p.Open() || p.Waiting() || !strings.Contains(p.Note, errBusWaits.Error()) || !strings.Contains(p.Note, short(b.to)) {
-			continue
-		}
-		since := p.Updated
-		if seen := first(p.ID); !seen.IsZero() && (since.IsZero() || seen.Before(since)) {
-			since = seen
-		}
-		var modules []string
-		if p.Tier >= 0 && p.Tier < len(p.Tiers) {
-			modules = append(modules, p.Tiers[p.Tier]...)
-		} else {
-			modules = planModules(p)
-		}
-		sort.Strings(modules)
-		f.waits = append(f.waits, busWaitFacts{plan: p.ID, repository: p.Repository, commit: p.Commit, modules: modules,
-			since: since})
-	}
-	sort.Slice(f.waits, func(i, j int) bool { return f.waits[i].since.Before(f.waits[j].since) })
-	return f
-}
-
-// heldByTheBus is the walks of a bus's facts, by id: what S3 leaves out.
-func (b busFacts) heldByTheBus() map[string]bool {
-	out := map[string]bool{}
-	for _, w := range b.waits {
-		out[w.plan] = true
-	}
-	return out
-}
-
-// busUpgradeVerb is the call that ends the wait, as the summary names it: through the mesh MCP server, with
-// why, saying whether the new version can be undone ("reversible": "true") or not ("irreversible": "true").
-const busUpgradeVerb = "`mesh_call mesh-controller.bus {\"upgrade\": \"true\", \"why\": \"…\", \"reversible\" or \"irreversible\": \"true\"}`"
-
-// watchBusWaits is S17: a send held for the bus's planned step, said at once to the operator.
-func watchBusWaits(f *signalFacts) []conditions.Observation {
-	b := f.bus
-	if len(b.waits) == 0 || len(b.machines) == 0 {
-		return nil
-	}
-	since := b.waits[0].since
-	var walks, what []string
-	for _, w := range b.waits {
-		walks = append(walks, fmt.Sprintf("%s (%s %s, tier: %s)", w.plan, w.repository, short(w.commit),
-			strings.Join(w.modules, ", ")))
-		what = append(what, deliveryWhat(w.modules, w.repository))
-	}
-	var from []string
-	for _, n := range b.machines {
-		from = append(from, short(orNotKnown(b.from[n])))
-	}
-	machines := namesWords(b.machines, 3)
-	in := f.now.Sub(since)
-	return []conditions.Observation{{Scope: conditions.ScopeBus, ID: b.module, Token: "step-waiting",
-		Kind: kindBusStepWaiting, Severity: conditions.Warning, Resolver: conditions.ResolverOperator,
-		Machine: b.machines[0], Also: b.machines[1:],
-		Summary: fmt.Sprintf("sends to %s wait for the bus's planned step: a new bus build (%s %s → %s) would replace "+
-			"the bus there, which only a person's %s does; waiting since %s: %s", strings.Join(b.machines, ", "),
-			b.module, strings.Join(sortedUnique(from), ", "), short(b.to), busUpgradeVerb,
-			since.UTC().Format(time.RFC3339), strings.Join(walks, "; ")),
-		Said:     fmt.Sprintf("%d walk(s) refused since %s", len(b.waits), since.UTC().Format(time.RFC3339)),
-		Headline: clipWords("Sends to "+machines+" wait for a bus upgrade", conditions.HeadlineMax),
-		Explanation: clipWords(fmt.Sprintf("A new version of the mesh's message system is built, and only a person "+
-			"installs it. Until then nothing else is sent to %s: %s waits, for %s so far.", machines,
-			namesWords(sortedUnique(what), 3), humanDuration(in)), conditions.ExplanationMax),
-		Needs:    "start the bus upgrade " + FromMeshMCPServer,
-		Resolved: "Resolved: the bus upgrade started, and sends go on"}}
-}
-
-// sortedUnique is a list sorted, each once.
-func sortedUnique(xs []string) []string {
-	seen := map[string]bool{}
-	var out []string
-	for _, x := range xs {
-		if !seen[x] {
-			seen[x] = true
-			out = append(out, x)
-		}
-	}
-	sort.Strings(out)
-	return out
-}
-
-// clipWords keeps a plain sentence within a bound, at a word.
-func clipWords(s string, n int) string {
-	if len(s) <= n {
-		return s
-	}
-	cut := strings.LastIndex(s[:n-1], " ")
-	if cut <= 0 {
-		cut = n - 1
-	}
-	return s[:cut] + "…"
-}

cmd/mesh-controller/bus_waits_integration_test.go

@@ -1,70 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-func TestASendHeldForTheBusStepIsFoundFromTheWalksItHolds(t *testing.T) {
-	now := time.Date(2026, 10, 8, 18, 30, 0, 0, time.UTC)
-	b := aBusOnAnchor()
-	walk := func(id, repo, note string, updated time.Time) inventory.Plan {
-		return inventory.Plan{ID: id, Repository: repo, Commit: "c0ffee001122", State: inventory.PlanRolling, Tier: 0,
-			Tiers: [][]string{{"mesh-host"}}, Modules: map[string]*inventory.PlanModule{"mesh-host": {}}, Note: note,
-			Updated: updated}
-	}
-	for _, c := range []struct {
-		name  string
-		bus   busPending
-		plans []inventory.Plan
-		first map[string]time.Time
-		want  []string
-		since time.Time
-	}{
-		{"a walk refused for the bus", b,
-			[]inventory.Plan{walk("plan-1", "novox/mesh-host", refusedNote(b, 0), now.Add(-27*time.Minute))}, nil,
-			[]string{"plan-1"}, now.Add(-27 * time.Minute)},
-		{"refused earlier than its last save, as this controller saw it", b,
-			[]inventory.Plan{walk("plan-1", "novox/mesh-host", refusedNote(b, 0), now.Add(-5*time.Minute))},
-			map[string]time.Time{"plan-1": now.Add(-28 * time.Minute)}, []string{"plan-1"}, now.Add(-28 * time.Minute)},
-		{"a walk refused for another reason", b,
-			[]inventory.Plan{walk("plan-1", "novox/mesh-host", "tier 0: the build seat is paused — tried again", now)}, nil,
-			nil, time.Time{}},
-		{"refused for an older bus build than the one held now", func() busPending { o := b; o.to = "99999999cccc"; return o }(),
-			[]inventory.Plan{walk("plan-1", "novox/mesh-host", refusedNote(b, 0), now)}, nil, nil, time.Time{}},
-		{"the bus already runs the build held: its step started", func() busPending {
-			o := aBusOnAnchor()
-			o.from = map[string]string{"anchor": o.to}
-			return o
-		}(), []inventory.Plan{walk("plan-1", "novox/mesh-host", refusedNote(b, 0), now)}, nil, nil, time.Time{}},
-		{"a walk waiting for its delivery's word asks no send", b, func() []inventory.Plan {
-			p := walk("plan-1", "novox/mesh-host", refusedNote(b, 0), now)
-			p.Delivery = &inventory.PlanDelivery{Awaits: "mesh-delivery"}
-			return []inventory.Plan{p}
-		}(), nil, nil, time.Time{}},
-	} {
-		t.Run(c.name, func(t *testing.T) {
-			got := busWaitsOf(c.plans, c.bus, func(id string) time.Time { return c.first[id] })
-			var ids []string
-			for _, w := range got.waits {
-				ids = append(ids, w.plan)
-			}
-			if strings.Join(ids, ",") != strings.Join(c.want, ",") {
-				t.Fatalf("held for the bus: %v, want %v", ids, c.want)
-			}
-			if len(c.want) > 0 {
-				if !got.waits[0].since.Equal(c.since) {
-					t.Errorf("waiting since %s, want %s", got.waits[0].since, c.since)
-				}
-				if strings.Join(got.machines, ",") != "anchor" || got.to != b.to || got.module != "nats" {
-					t.Errorf("behind %+v", got)
-				}
-			}
-		})
-	}
-}

cmd/mesh-controller/bus_waits_test.go

@@ -1,99 +0,0 @@
-package main
-
-import (
-	"context"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-// novox/hq issue 336: a send held because it would replace the bus outside its planned step waits for a
-// person, so a person is told at once — what waits, behind which bus build, since when, and the verb that
-// ends it — and the wait is not read as a walk running late.
-
-// aBusOnAnchor is a new bus build waiting for its step on anchor: nats 88135ad0 there, 32307bd1 held.
-func aBusOnAnchor() busPending {
-	return busPending{module: "nats", machines: []string{"anchor"}, from: map[string]string{"anchor": "88135ad0aaaa"},
-		to: "32307bd1bbbb", same: map[string]bool{}}
-}
-
-// refusedNote is the note a walk keeps when its send was refused for the bus, as advanceHeld writes it.
-func refusedNote(b busPending, tier int) string {
-	held := "sending anchor would replace the bus (nats " + short(b.from["anchor"]) + " → " + short(b.to) +
-		"), which is a planned step: `bus upgrade --why …` snapshots its streams first and checks them after (novox/hq ADR 0236)"
-	return "tier " + string(rune('0'+tier)) + ": " + errBusWaits.Error() + ": " + held + " — tried again"
-}
-
-// **Said at once, not as lateness, and cleared when the step starts**: the walk held only for the bus raises
-// the bus's condition on the first tick, before any tier bound, naming what waits, the bus build from and to,
-// since when and `bus upgrade`, for the operator; S3 says nothing of it even past its bound; and the
-// condition clears once the bus's machine runs the new build.
-func TestASendHeldForTheBusStepIsSaidAtOnceAndNotAsLateness(t *testing.T) {
-	now := time.Date(2026, 10, 8, 18, 30, 0, 0, time.UTC)
-	b := aBusOnAnchor()
-	held := func(entered time.Duration) *signalFacts {
-		f := calm(now)
-		f.plans = []planFacts{{id: "plan-1", repository: "novox/mesh-host", commit: "c0ffee00", tier: 0, tiers: 1,
-			entered: now.Add(-entered), bound: 30 * time.Minute, waiting: refusedNote(b, 0), bus: true}}
-		f.bus = busFacts{module: "nats", to: b.to, from: b.from, machines: []string{"anchor"},
-			waits: []busWaitFacts{{plan: "plan-1", repository: "novox/mesh-host", commit: "c0ffee001122",
-				modules: []string{"mesh-host"}, since: now.Add(-time.Minute)}}}
-		return f
-	}
-
-	f := held(time.Minute)
-	got := watchBusWaits(f)
-	if len(got) != 1 {
-		t.Fatalf("a send held for the bus a minute ago raised %+v", got)
-	}
-	o := got[0]
-	if o.Key() != "bus.nats.step-waiting" || o.Kind != kindBusStepWaiting || o.Resolver != conditions.ResolverOperator {
-		t.Fatalf("raised %s (%s), resolver %q", o.Key(), o.Kind, o.Resolver)
-	}
-	for _, want := range []string{"anchor", "mesh-host", "88135ad0", "32307bd1", "mesh_call mesh-controller.bus",
-		`"upgrade": "true"`, `"reversible"`, `"irreversible"`, "2026-10-08T18:29:00Z", "plan-1"} {
-		if !strings.Contains(o.Summary, want) {
-			t.Errorf("its summary does not say %q: %s", want, o.Summary)
-		}
-	}
-	if !strings.Contains(o.Explanation, "mesh-host") || !strings.Contains(o.Headline, "bus upgrade") || o.Needs == "" {
-		t.Errorf("its words do not say what waits and what the operator does: %+v", o)
-	}
-	if why, ok := conditions.PlainWords(conditions.Words{Headline: o.Headline, Explanation: o.Explanation,
-		Resolved: o.Resolved, Needs: o.Needs}, "anchor"); !ok {
-		t.Errorf("its words are not plain: %s", why)
-	}
-
-	// Past S3's bound: still the bus's wait, never a stalled walk.
-	late := held(45 * time.Minute)
-	if s3 := watchPlans(late); len(s3) != 0 {
-		t.Fatalf("a walk held only by the bus step was said stalled: %+v", s3)
-	}
-	// A walk held for something else past its bound is still stalled.
-	other := held(45 * time.Minute)
-	other.plans[0].bus = false
-	if s3 := watchPlans(other); len(s3) != 1 {
-		t.Fatalf("a walk held for something else past its bound raised %+v", s3)
-	}
-
-	// Through the keeper: open at the first tick, cleared when the step started.
-	store := conditions.NewInMemory()
-	k := conditions.NewKeeper(t.Context(), conditions.Options{Store: store, History: store, Teller: &conditions.Told{},
-		Now: func() time.Time { return now }})
-	defer k.Close(context.Background())
-	w := &watchdogs{keeper: k, started: now.Add(-time.Hour)}
-	w.see(t.Context(), held(time.Minute))
-	open, err := k.Open(t.Context())
-	if err != nil || len(open) != 1 || open[0].Key != "bus.nats.step-waiting" {
-		t.Fatalf("after the first tick, open: %+v (%v)", open, err)
-	}
-	started := held(time.Minute)
-	started.bus = busFacts{module: "nats", to: b.to}
-	started.plans[0].bus = false
-	w.see(t.Context(), started)
-	if open, _ := k.Open(t.Context()); len(open) != 0 {
-		t.Fatalf("the step started, and open: %+v", open)
-	}
-}

cmd/mesh-controller/busobjects.go

@@ -1,247 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"fmt"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// The streams and durable consumers the mesh's own traffic needs, derived once (novox/hq to-be 45 §4,
-// D6 and D7).
-//
-// **What the controller asserts at its start and what the self-check expects to find are one
-// derivation**, run against the bus to make them and against a recorder to list them. Two lists would
-// drift, and a self-check comparing the bus with a second opinion of what should be there would find
-// the drift rather than the fault.
-
-// assertBusObjects brings every stream and consumer into being on r, and answers the machines that
-// can now hear a declaration.
-func assertBusObjects(ctx context.Context, inv *inventory.Inventory, r broker.Raiser) ([]string, error) {
-	nodes, err := inv.Nodes(ctx)
-	if err != nil {
-		return nil, err
-	}
-	names := make([]string, 0, len(nodes))
-	for _, n := range nodes {
-		names = append(names, n.Name)
-	}
-	if err := broker.Raise(r, names); err != nil {
-		return nil, err
-	}
-	// The work queues of the mesh's own roles (novox/hq ADR 0121). The queue before the holder,
-	// deliberately: work queues until somebody arrives to do it, so assigning a build machine a week
-	// after something started asking for builds flushes the backlog instead of having lost it.
-	// With the seats' holders, so each role's work queue gets the consumer its holder takes
-	// work from. Passed as nil until the first live raise, which left the build machine bound to a
-	// consumer nothing had created (2026-09-28).
-	holders, err := seatHolders(ctx, inv)
-	if err != nil {
-		return nil, err
-	}
-	if err := broker.RaiseSeats(r, inventory.MeshSeats(), holders); err != nil {
-		return nil, err
-	}
-	// And how every module hears what it consumes. Derived from the same records the user list is
-	// composed from, so a module the mesh grants a consumer's subjects has that consumer waiting.
-	// Done on every raise, not only when a credential is issued: every module moved onto this bus
-	// by the rollout was issued on the old one, and came up with nothing to bind to (2026-09-28).
-	consumers, records, err := moduleConsumersAndRecords(ctx, inv)
-	if err != nil {
-		return nil, err
-	}
-	// And a grant of a restricted stream that composes nothing, said on every raise and send (novox/hq ADR 0376 §2).
-	sayWithheld(records, "  ")
-	// And the work queues of seats that name their caller or their kind, with each holder's worker
-	// (novox/hq ADR 0259 §3): an ask queues until the router takes it, a channel's work until that kind
-	// takes it.
-	trafficStreams, trafficWorkers, err := seatTrafficObjects(ctx, inv)
-	if err != nil {
-		return nil, err
-	}
-	// And every module's own stream (novox/hq ADR 0363), from the catalogue, before the consumers on it.
-	modStreams, err := inv.DeclaredStreams(ctx)
-	if err != nil {
-		return nil, err
-	}
-	// Every one tried, and every failure named: one module's consumer the bus refuses is no reason
-	// the modules after it in the list hear nothing (novox/hq issue 208, where this runs on each send).
-	var failed []error
-	for _, s := range broker.ModuleStreams(modStreams) {
-		if err := r.EnsureStream(s); err != nil {
-			failed = append(failed, fmt.Errorf("the module stream %s: %w", s.Name, err))
-		}
-	}
-	for _, s := range trafficStreams {
-		if err := r.EnsureStream(s); err != nil {
-			failed = append(failed, fmt.Errorf("the work queue %s: %w", s.Name, err))
-		}
-	}
-	for _, c := range trafficWorkers {
-		if err := r.EnsureConsumer(c); err != nil {
-			failed = append(failed, fmt.Errorf("the worker %s on %s: %w", c.Name, c.Stream, err))
-		}
-	}
-	restricted := map[string]bool{}
-	for _, s := range modStreams {
-		restricted[s.Name] = s.Restricted
-	}
-	for _, c := range consumers {
-		if err := broker.EnsureHeard(r, c.Consumer, restricted[c.Consumer.Stream]); err != nil {
-			failed = append(failed, fmt.Errorf("how %s on %s hears what it consumes: %w", c.Module, c.Node, err))
-		}
-	}
-	// **And a consumer no longer granted loses what it reads through** (novox/hq ADR 0363 §6): every consumer
-	// on a module's stream the composition no longer asks for is removed, on this very send.
-	if p, prunes := r.(broker.Pruner); prunes && len(modStreams) > 0 {
-		var wanted []broker.Consumer
-		for _, c := range consumers {
-			wanted = append(wanted, c.Consumer)
-		}
-		removed, err := broker.PruneHeard(p, modStreams, wanted)
-		if err != nil {
-			failed = append(failed, err)
-		}
-		for _, gone := range removed {
-			fmt.Printf("  removed the consumer %s: its module is no longer granted that stream (novox/hq ADR 0363)\n", gone)
-		}
-	}
-	if len(failed) > 0 {
-		return nil, errors.Join(failed...)
-	}
-	return names, nil
-}
-
-// What raises the condition a send says when the objects it implies could not be asserted, and its kind.
-const (
-	sourceBusObjects         = "bus-objects"
-	kindBusObjectsUnasserted = "bus-objects-unasserted"
-)
-
-// assertOnSend asserts, on the bus a send is about to use, every object assertBusObjects derives —
-// **whenever a declaration is sent, not only when the controller starts** (novox/hq issue 208).
-//
-// A module assigned after the controller started was sent its declaration and found no consumer to
-// bind (`consumer not found`, messenger on 2026-10-06), and a seat holder assigned after it found no
-// worker: the objects a declaration implies were asserted at start and nowhere else, so they existed
-// only for what was assigned before the last restart. The same derivation, not a second list of what
-// a send needs: what start asserts, the self-check expects and a send asserts are one answer. Every
-// part is idempotent, so asserting the whole of it again is the no-op a restart already relies on.
-//
-// **A failure is said and raised, and the send goes on.** The objects are the mesh's, not the
-// machines' being sent: holding every machine back for one consumer that none of them may use would
-// turn one fault into all of them, and the declarations are not what is wrong. It is never silent —
-// said in the send's own output and raised as a condition, which the next send that asserts them
-// clears — and the start-time raise still refuses to serve without them.
-func assertOnSend(ctx context.Context, inv *inventory.Inventory, r broker.Raiser, indent string) error {
-	_, err := assertBusObjects(ctx, inv, r)
-	var observed []conditions.Observation
-	if err != nil {
-		fmt.Printf("%sTHE BUS DOES NOT HOLD WHAT THIS SEND IMPLIES: %v\n", indent, err)
-		fmt.Printf("%s  a module may find no consumer to bind, or a holder no worker; sent anyway, raised as "+
-			"condition %s, and asserted again by the next send\n", indent, unassertedObservation(err).Key())
-		observed = append(observed, unassertedObservation(err))
-	}
-	// Observed when it failed, cleared when it did not: a send that asserted everything is the
-	// observation that the bus holds what it should.
-	if kerr := withKeeper(ctx, func(k *conditions.Keeper) error {
-		return k.Reconcile(ctx, sourceBusObjects, observed)
-	}); kerr != nil {
-		fmt.Printf("%sand whether the bus holds what this send implies could not be kept as a condition: %v\n",
-			indent, kerr)
-	}
-	return err
-}
-
-// unassertedObservation is a send's failure to assert the bus's objects, as a condition.
-func unassertedObservation(err error) conditions.Observation {
-	return conditions.Observation{Scope: conditions.ScopeBus, ID: "objects", Token: "unasserted",
-		Kind: kindBusObjectsUnasserted, Severity: conditions.Warning, Source: sourceBusObjects,
-		Summary: "the bus's streams and consumers could not be asserted when a declaration was sent: " +
-			"a module may find no consumer to bind, or a seat's holder no worker",
-		Said: err.Error()}
-}
-
-// moduleConsumers is every module's durable consumer, from the records the user list is composed from.
-func moduleConsumers(ctx context.Context, inv *inventory.Inventory) ([]broker.ModuleConsumer, error) {
-	consumers, _, err := moduleConsumersAndRecords(ctx, inv)
-	return consumers, err
-}
-
-// moduleConsumersAndRecords is moduleConsumers with the records they were composed from.
-func moduleConsumersAndRecords(ctx context.Context, inv *inventory.Inventory) ([]broker.ModuleConsumer, broker.Records, error) {
-	records, err := inv.BusRecords(ctx)
-	if err != nil {
-		return nil, broker.Records{}, err
-	}
-	users, err := broker.Users(records)
-	if err != nil {
-		return nil, broker.Records{}, err
-	}
-	return broker.ConsumersOf(users), records, nil
-}
-
-// seatTrafficObjects is the work queues and workers of seats that name their caller or their kind, from
-// the records the user list is composed from.
-func seatTrafficObjects(ctx context.Context, inv *inventory.Inventory) ([]broker.Stream, []broker.Consumer, error) {
-	records, err := inv.BusRecords(ctx)
-	if err != nil {
-		return nil, nil, err
-	}
-	users, err := broker.Users(records)
-	if err != nil {
-		return nil, nil, err
-	}
-	streams, workers := broker.SeatTrafficObjects(users)
-	// And the queue of every such seat the catalogue declares, held or not: work queues from registration,
-	// so what is submitted before a holder is assigned waits for it (the correctness review of 2026-10-08).
-	declared, err := inv.DeclaredTrafficSeats(ctx)
-	if err != nil {
-		return nil, nil, err
-	}
-	have := map[string]bool{}
-	for _, s := range streams {
-		have[s.Name] = true
-	}
-	for _, s := range broker.TrafficQueues(declared) {
-		if !have[s.Name] {
-			streams = append(streams, s)
-			have[s.Name] = true
-		}
-	}
-	return streams, workers, nil
-}
-
-// moduleConsumerCount is how many modules hear what they consume, for the raise's one line.
-func moduleConsumerCount(ctx context.Context, inv *inventory.Inventory) (int, error) {
-	consumers, err := moduleConsumers(ctx, inv)
-	return len(consumers), err
-}
-
-// expectedBusObjects is every stream and consumer assertBusObjects would make, made nowhere.
-func expectedBusObjects(ctx context.Context, inv *inventory.Inventory) ([]broker.Stream, []broker.Consumer, error) {
-	var rec recordingRaiser
-	if _, err := assertBusObjects(ctx, inv, &rec); err != nil {
-		return nil, nil, fmt.Errorf("what the bus should hold cannot be worked out: %w", err)
-	}
-	return rec.streams, rec.consumers, nil
-}
-
-// recordingRaiser keeps what it was asked to assert and asserts nothing.
-type recordingRaiser struct {
-	streams   []broker.Stream
-	consumers []broker.Consumer
-}
-
-func (r *recordingRaiser) EnsureStream(s broker.Stream) error {
-	r.streams = append(r.streams, s)
-	return nil
-}
-
-func (r *recordingRaiser) EnsureConsumer(c broker.Consumer) error {
-	r.consumers = append(r.consumers, c)
-	return nil
-}

cmd/mesh-controller/busobjects_test.go

@@ -1,199 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"errors"
-	"strings"
-	"testing"
-
-	"github.com/nats-io/nats.go"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-
-	"github.com/novox/mesh-controller/internal/testbus"
-)
-
-// novox/hq issue 208: the bus's objects a declaration implies are asserted whenever one is sent, not
-// only when the controller starts.
-
-// aCarriedConsumer is the runtime on laptop and, carried by it, a module that consumes an event: the
-// shape of messenger on 2026-10-06, assigned after the controller started.
-func aCarriedConsumer(t *testing.T, open *stores) broker.Consumer {
-	t.Helper()
-	register(t, open, catalogue.Manifest{Module: catalogue.RuntimeModule, Version: "1",
-		OwnSecrets: catalogue.OwnSecrets{"broker": {Path: "/var/lib/mesh/node-tools/broker"}}})
-	register(t, open, catalogue.Manifest{Module: "messenger", Version: "1",
-		Consumes: []string{"billing.order.placed"}})
-	for _, m := range []string{catalogue.RuntimeModule, "messenger"} {
-		if _, err := open.inventory.Assign(t.Context(), "laptop", m); err != nil {
-			t.Fatal(err)
-		}
-	}
-	consumers, err := moduleConsumers(t.Context(), open.inventory)
-	if err != nil {
-		t.Fatal(err)
-	}
-	for _, c := range consumers {
-		if c.Module == "messenger" && c.Node == "laptop" {
-			return c.Consumer
-		}
-	}
-	t.Fatalf("messenger on laptop is derived no consumer: %+v", consumers)
-	return broker.Consumer{}
-}
-
-// aLateHolder is a module holding the build agent's seat on anchor, assigned after the controller
-// started, and the worker its seat's queue should have for it.
-func aLateHolder(t *testing.T, open *stores) broker.Consumer {
-	t.Helper()
-	register(t, open, catalogue.Manifest{Module: "late-builder", Version: "1",
-		Claims: []catalogue.Claim{{Name: "node-build-agent", Scope: catalogue.ScopeNode}}})
-	if _, err := open.inventory.Assign(t.Context(), "anchor", "late-builder"); err != nil {
-		t.Fatal(err)
-	}
-	for _, s := range inventory.MeshSeats() {
-		if s.Name == "node-build-agent" {
-			c, needed := broker.HolderConsumerFor("anchor", "late-builder", s)
-			if !needed {
-				t.Fatal("the build agent's seat needs no worker")
-			}
-			return c
-		}
-	}
-	t.Fatal("the mesh declares no build agent's seat")
-	return broker.Consumer{}
-}
-
-// asserted says whether a recording holds a consumer by stream and name.
-func asserted(rec *recordingRaiser, want broker.Consumer) bool {
-	for _, c := range rec.consumers {
-		if c.Stream == want.Stream && c.Name == want.Name {
-			return true
-		}
-	}
-	return false
-}
-
-// What a send asserts includes what was assigned after the start's assertion: a carried module's
-// consumer and a late holder's worker. The derivation is the start's own, so this holds without a bus.
-func TestASendAssertsWhatWasAssignedAfterStart(t *testing.T) {
-	open := aMesh(t)
-	var atStart recordingRaiser
-	if _, err := assertBusObjects(t.Context(), open.inventory, &atStart); err != nil {
-		t.Fatal(err)
-	}
-	consumer := aCarriedConsumer(t, open)
-	worker := aLateHolder(t, open)
-	if asserted(&atStart, consumer) || asserted(&atStart, worker) {
-		t.Fatal("the start asserted what was not yet assigned; the test proves nothing")
-	}
-	var onSend recordingRaiser
-	if err := assertOnSend(t.Context(), open.inventory, &onSend, ""); err != nil {
-		t.Fatal(err)
-	}
-	if !asserted(&onSend, consumer) {
-		t.Fatalf("messenger's consumer %s on %s is not asserted by the send: %+v", consumer.Name, consumer.Stream, onSend.consumers)
-	}
-	if !asserted(&onSend, worker) {
-		t.Fatalf("the late holder's worker %s on %s is not asserted by the send: %+v", worker.Name, worker.Stream, onSend.consumers)
-	}
-}
-
-// failingRaiser refuses one consumer by name and records everything it was asked.
-type failingRaiser struct {
-	recordingRaiser
-	refuse string
-}
-
-func (f *failingRaiser) EnsureConsumer(c broker.Consumer) error {
-	f.consumers = append(f.consumers, c)
-	if c.Name == f.refuse {
-		return errors.New("nats: API error: code=503 description=insufficient resources")
-	}
-	return nil
-}
-
-// A send whose objects cannot be asserted says so in its output and raises a condition — and the next
-// send that asserts them clears it. The consumers after the refused one are still asked for.
-func TestASendThatCannotAssertTheBusSaysSoAndRaisesACondition(t *testing.T) {
-	open := aMesh(t)
-	consumer := aCarriedConsumer(t, open)
-	worker := aLateHolder(t, open)
-	failing := &failingRaiser{refuse: consumer.Name}
-
-	var sendErr error
-	out := stdoutOf(t, func() error {
-		sendErr = assertOnSend(t.Context(), open.inventory, failing, "  ")
-		return nil
-	})
-	if sendErr == nil || !strings.Contains(sendErr.Error(), "how messenger on laptop hears what it consumes") {
-		t.Fatalf("the failure is not answered: %v", sendErr)
-	}
-	if !strings.Contains(out, "THE BUS DOES NOT HOLD WHAT THIS SEND IMPLIES") ||
-		!strings.Contains(out, "insufficient resources") || !strings.Contains(out, "bus.objects.unasserted") {
-		t.Fatalf("the failure is not said in the send's output:\n%s", out)
-	}
-	if !asserted(&failing.recordingRaiser, worker) {
-		t.Fatal("the seat's worker was not asked for")
-	}
-	c, open1, err := conditionsFrom.Get(t.Context(), "bus.objects.unasserted")
-	if err != nil || !open1 {
-		t.Fatalf("no condition raised: %v", err)
-	}
-	if c.Kind != kindBusObjectsUnasserted || c.Source != sourceBusObjects ||
-		len(c.Evidence) == 0 || !strings.Contains(c.Evidence[0].Said, "insufficient resources") {
-		t.Fatalf("the condition does not say what failed: %+v", c)
-	}
-
-	// The next send asserts them, and that observation clears it.
-	if err := assertOnSend(t.Context(), open.inventory, &recordingRaiser{}, ""); err != nil {
-		t.Fatal(err)
-	}
-	if _, stillOpen, err := conditionsFrom.Get(t.Context(), "bus.objects.unasserted"); err != nil || stillOpen {
-		t.Fatalf("a send that asserted everything left the condition open: %v", err)
-	}
-}
-
-// Against a real bus, through the send's own grant: a module assigned after start has its consumer
-// once a declaration is sent, and a holder assigned after start its seat's worker.
-func TestNatsAModuleAssignedAfterStartGetsItsConsumerAtItsFirstSend(t *testing.T) {
-	url := testbus.URL(t)
-	open := aMesh(t)
-	js, err := broker.Dial(url)
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(js.Close)
-	for _, s := range []string{"CONTROL", "NODES", "ASSIGNMENTS", "EVENTS"} {
-		_ = js.Context().DeleteStream(s)
-	}
-	// The controller starting, before either was assigned.
-	if _, err := assertBusObjects(t.Context(), open.inventory, js); err != nil {
-		t.Fatal(err)
-	}
-	consumer := aCarriedConsumer(t, open)
-	worker := aLateHolder(t, open)
-	_ = js.Context().DeleteConsumer(worker.Stream, worker.Name)
-	for _, c := range []broker.Consumer{consumer, worker} {
-		if _, err := js.Context().ConsumerInfo(c.Stream, c.Name); !errors.Is(err, nats.ErrConsumerNotFound) {
-			t.Fatalf("%s on %s exists before any send; the test proves nothing: %v", c.Name, c.Stream, err)
-		}
-	}
-
-	server := link.ConnectNats(js, nil, nil)
-	if err := (overTheBus{open: open, server: server}).grant(t.Context(), nil); err != nil {
-		t.Fatal(err)
-	}
-	for _, c := range []broker.Consumer{consumer, worker} {
-		if _, err := js.Context().ConsumerInfo(c.Stream, c.Name); err != nil {
-			t.Fatalf("%s on %s is not on the bus after a send: %v", c.Name, c.Stream, err)
-		}
-	}
-	if _, raised, _ := conditionsFrom.Get(t.Context(), "bus.objects.unasserted"); raised {
-		t.Fatal("a send that asserted everything raised a condition")
-	}
-}

cmd/mesh-controller/busy.go

@@ -1,103 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// A first-node gate waits for a busy container (novox/hq ADR 0335 §4).
-//
-// When a machine reports, on what the gate sent it, that a container of a judged module was left running
-// because it said busy, the judging has not started: the build is not yet what runs there. The walk says it
-// waits for a busy container on that machine, counts no pass and no bound, and starts the judging — its
-// Since — at the report that no longer lists the container waiting. The wait is the node-engine's, bounded
-// at 15 minutes; the controller's own bound (busyGateBound past the engine's) is for an engine that stopped
-// reporting while it waited, so no walk waits for ever. An engine older than the field never lists one, and
-// its gate starts as before.
-
-// busyGateSlack is how long past the engine's bound the controller still waits for the report that says the
-// container replaced: a pass of the engine (its asks every 20 seconds) and the report's way here.
-var busyGateSlack = 5 * time.Minute
-
-// busyEngineBound is the node-engine's bound on a wait (novox/hq ADR 0335 §3), counted again here on this
-// controller's clock from when it first read the wait.
-const busyEngineBound = 15 * time.Minute
-
-// busyGateEnds is when the gate stops waiting: the engine's own word on its bound, or this controller's count of
-// it from when it first read the wait, whichever is sooner, and the slack — so neither a clock ahead on the
-// machine nor a wrong word from it holds a walk longer.
-func busyGateEnds(b *inventory.GateBusy) time.Time {
-	until := b.Seen.Add(busyEngineBound)
-	if !b.Until.IsZero() && b.Until.Before(until) {
-		until = b.Until
-	}
-	return until.Add(busyGateSlack)
-}
-
-// busyWait decides, before a judging, whether the gate waits for a busy container on a machine it judges:
-// true while it waits, the gate saying so. False when nothing waits, or no longer: a wait that ended moves the
-// gate's Since to its end. Pure but for the gate it is handed.
-func busyWait(g *inventory.PlanGate, pairs []judged, f gateFacts, now time.Time) bool {
-	if g.Busy != nil && g.Busy.Ended != nil {
-		return false
-	}
-	for _, j := range pairs {
-		b, waits := busyOn(j, f)
-		if !waits {
-			continue
-		}
-		if g.Busy == nil {
-			g.Busy = &inventory.GateBusy{Machine: j.node, Module: j.module, Container: b.Container, Since: b.Since,
-				Seen: now}
-		}
-		if g.Busy.Seen.IsZero() {
-			g.Busy.Seen = now
-		}
-		g.Busy.Until, g.Busy.Said = b.Until, b.Said
-		if now.After(busyGateEnds(g.Busy)) {
-			// The engine said it would have replaced it by now: the judging starts, and finds the module not
-			// yet healthy while the machine still lists it waiting (busyStill), until the gate's own bound.
-			end := now
-			g.Busy.Ended, g.Busy.PastBound = &end, true
-			g.Since, g.Passes, g.LastPass, g.Healthy, g.HealthyAt, g.Applied = &end, 0, nil, nil, nil, nil
-			return false
-		}
-		g.Passes, g.LastPass, g.Last, g.Failing = 0, nil, g.Busy.Words(), nil
-		g.Read(now, false, g.Busy.Words())
-		return true
-	}
-	if g.Busy == nil {
-		return false
-	}
-	// Replaced: the judging starts at the report that said so.
-	end := now
-	if r, said := f.reports[g.Busy.Machine]; said && r.At != nil && r.At.After(g.Busy.Since) && r.At.Before(now) {
-		end = r.At.UTC()
-	}
-	g.Busy.Ended = &end
-	g.Since, g.Passes, g.LastPass, g.Last, g.Healthy, g.HealthyAt, g.Applied = &end, 0, nil, "", nil, nil, nil
-	return false
-}
-
-// busyOn is the container of a judged module its machine last reported, on what the gate sent it, as left
-// running because it said busy.
-func busyOn(j judged, f gateFacts) (inventory.BusyWait, bool) {
-	r, said := f.reports[j.node]
-	if !said || r.At == nil || !f.reportedOn(j.node, r) {
-		return inventory.BusyWait{}, false
-	}
-	return inventory.WaitingFor(r.Busy, j.module)
-}
-
-// busyStill is a judged module whose container its machine still lists waiting once the gate stopped waiting
-// for it: not yet what was sent, so not healthy, whatever its health says of the container still running.
-func busyStill(j judged, f gateFacts) (string, bool) {
-	b, waits := busyOn(j, f)
-	if !waits {
-		return "", false
-	}
-	return fmt.Sprintf("%s still runs its busy container %s, past its node-engine's bound of %s",
-		j.node, b.Container, b.Until.UTC().Format(time.RFC3339)), true
-}

cmd/mesh-controller/busy_test.go

@@ -1,148 +0,0 @@
-package main
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// A walk whose module's container waits as busy on its first machine says so, and starts that machine's
-// first-machine gate only once the machine reports the container replaced (novox/hq ADR 0335 §4).
-func TestAGateWaitsForABusyContainerAndStartsWhenItIsReplaced(t *testing.T) {
-	sent := time.Date(2026, 10, 13, 1, 0, 0, 0, time.UTC)
-	g := &inventory.PlanGate{Machines: []string{"novox"}, Since: &sent,
-		Sent: map[string]inventory.SentDeclaration{"novox": {Digest: "d1", Sequence: 7}}}
-	pairs := []judged{{module: "build-agent", node: "novox"}, {module: "mesh-controller", node: "novox"}}
-	reported := sent.Add(20 * time.Second)
-	waiting := []inventory.BusyWait{{ID: "build-agent.server", Container: "mesh-build-agent",
-		State: inventory.BusyWaiting, Since: reported, Until: reported.Add(15 * time.Minute),
-		Said: "busy: novox/mesh-controller (check of #280), in hand since 00:58:00Z"}}
-	facts := func(at time.Time, busy []inventory.BusyWait) gateFacts {
-		// As judgeMoves hands it: the report held against the gate's own send.
-		return gateFacts{sent: g.Sent, reports: map[string]inventory.Reported{"novox": {Node: "novox",
-			Outcome: inventory.OutcomeApplied, At: &at, Declared: "d1", ReportedSequence: 7, Busy: busy}}}
-	}
-
-	now := reported.Add(time.Minute)
-	if !busyWait(g, pairs, facts(reported, waiting), now) {
-		t.Fatal("a gate whose module's container waits as busy judged it")
-	}
-	if !g.Since.Equal(sent) || g.Busy == nil || g.Busy.Machine != "novox" || g.Busy.Ended != nil {
-		t.Fatalf("the gate does not keep the wait: %+v %+v", g.Since, g.Busy)
-	}
-	for _, said := range []string{gateLine(g), g.Last} {
-		if !strings.Contains(said, "waits for a busy container on novox") {
-			t.Errorf("the walk does not say it waits for a busy container there: %s", said)
-		}
-	}
-	if !strings.Contains(g.Last, "check of #280") {
-		t.Errorf("the wait does not say what the container holds: %s", g.Last)
-	}
-
-	// Ten minutes on, still busy, within the engine's bound: still waiting, nothing judged, no bound run.
-	now = reported.Add(10 * time.Minute)
-	if !busyWait(g, pairs, facts(reported.Add(9*time.Minute), waiting), now) || g.Passes != 0 {
-		t.Fatalf("the gate stopped waiting within the bound: %+v", g)
-	}
-
-	// The machine reports it replaced: the judging starts at that report.
-	replacedAt := reported.Add(12 * time.Minute)
-	now = replacedAt.Add(5 * time.Second)
-	replaced := []inventory.BusyWait{{ID: "build-agent.server", Container: "mesh-build-agent",
-		State: "replaced-when-idle", Since: reported, Until: reported.Add(15 * time.Minute)}}
-	if busyWait(g, pairs, facts(replacedAt, replaced), now) {
-		t.Fatal("the gate still waits after the container was replaced")
-	}
-	if g.Since == nil || !g.Since.Equal(replacedAt) || g.Busy.Ended == nil || !g.Busy.Ended.Equal(replacedAt) {
-		t.Fatalf("the gate does not start at the report that said it replaced: since %v, %+v", g.Since, g.Busy)
-	}
-	if strings.Contains(gateLine(g), "waits for a busy container") {
-		t.Errorf("a gate judging still says it waits: %s", gateLine(g))
-	}
-	// And a later report listing it waiting again does not hold a gate that started.
-	if busyWait(g, pairs, facts(now, waiting), now.Add(time.Minute)) {
-		t.Error("a gate that started waits again")
-	}
-}
-
-// An engine that stops reporting while it waits holds no walk for ever: past the engine's bound and the slack,
-// the judging starts, and finds the module not yet healthy while its container is still listed waiting.
-func TestAGateWaitsNoLongerThanTheEnginesBound(t *testing.T) {
-	sent := time.Date(2026, 10, 13, 1, 0, 0, 0, time.UTC)
-	g := &inventory.PlanGate{Machines: []string{"novox"}, Since: &sent}
-	pairs := []judged{{module: "build-agent", node: "novox"}}
-	waiting := []inventory.BusyWait{{ID: "build-agent.server", Container: "mesh-build-agent",
-		State: inventory.BusyWaiting, Since: sent, Until: sent.Add(15 * time.Minute)}}
-	f := gateFacts{reports: map[string]inventory.Reported{"novox": {Node: "novox", Outcome: inventory.OutcomeApplied,
-		At: &sent, Current: true, Busy: waiting}}}
-	now := sent.Add(15*time.Minute + busyGateSlack + time.Second)
-	if busyWait(g, pairs, f, now) {
-		t.Fatal("a gate waited past the engine's bound and the slack")
-	}
-	if !g.Busy.PastBound || !g.Since.Equal(now) {
-		t.Fatalf("the gate does not start, said past the bound: %+v %v", g.Busy, g.Since)
-	}
-	if why, still := busyStill(pairs[0], f); !still || !strings.Contains(why, "past its node-engine's bound") {
-		t.Fatalf("a module still running its busy container reads as what was sent: %q", why)
-	}
-}
-
-// A report from an engine older than the field lists nothing: the gate starts at the send, as before; and a
-// report not about the gate's send says nothing of it.
-func TestAGateOfAnEngineThatNeverWaitsStartsAsBefore(t *testing.T) {
-	sent := time.Date(2026, 10, 13, 1, 0, 0, 0, time.UTC)
-	g := &inventory.PlanGate{Machines: []string{"ace"}, Since: &sent,
-		Sent: map[string]inventory.SentDeclaration{"ace": {Digest: "d2", Sequence: 9}}}
-	pairs := []judged{{module: "build-agent", node: "ace"}}
-	at := sent.Add(time.Minute)
-	older := gateFacts{sent: g.Sent, reports: map[string]inventory.Reported{"ace": {Node: "ace", Outcome: inventory.OutcomeApplied,
-		At: &at, Declared: "d2", ReportedSequence: 9}}}
-	if busyWait(g, pairs, older, at) || g.Busy != nil || !g.Since.Equal(sent) {
-		t.Fatalf("a gate on an engine that never waits did not start at the send: %+v %v", g.Busy, g.Since)
-	}
-	elsewhere := gateFacts{sent: g.Sent, reports: map[string]inventory.Reported{"ace": {Node: "ace", Outcome: inventory.OutcomeApplied,
-		At: &at, Declared: "d1", ReportedSequence: 8, Busy: []inventory.BusyWait{{ID: "build-agent.server",
-			State: inventory.BusyWaiting, Until: at.Add(time.Hour)}}}}}
-	if busyWait(g, pairs, elsewhere, at) {
-		t.Fatal("a wait reported about an earlier declaration held the gate")
-	}
-}
-
-// The wait is bounded on this controller's clock: an engine whose clock runs an hour ahead, saying it waits until
-// then, holds the gate no longer than 15 minutes and the slack from when the controller first read the wait.
-func TestAGateWaitIsBoundedOnTheControllersClock(t *testing.T) {
-	seen := time.Date(2026, 10, 13, 1, 0, 0, 0, time.UTC)
-	g := &inventory.PlanGate{Machines: []string{"novox"}, Since: &seen}
-	pairs := []judged{{module: "build-agent", node: "novox"}}
-	ahead := seen.Add(time.Hour)
-	f := gateFacts{reports: map[string]inventory.Reported{"novox": {Node: "novox", Outcome: inventory.OutcomeApplied,
-		At: &seen, Current: true, Busy: []inventory.BusyWait{{ID: "build-agent.server", Container: "mesh-build-agent",
-			State: inventory.BusyWaiting, Since: ahead, Until: ahead.Add(15 * time.Minute)}}}}}
-	if !busyWait(g, pairs, f, seen) || !g.Busy.Seen.Equal(seen) {
-		t.Fatalf("the gate did not start waiting, seen now: %+v", g.Busy)
-	}
-	if !busyWait(g, pairs, f, seen.Add(15*time.Minute+busyGateSlack-time.Second)) {
-		t.Fatal("the gate stopped waiting within the bound on its own clock")
-	}
-	if busyWait(g, pairs, f, seen.Add(15*time.Minute+busyGateSlack+time.Second)) || !g.Busy.PastBound {
-		t.Fatalf("an engine's later word held the gate past the controller's bound: %+v", g.Busy)
-	}
-}
-
-// `plan` says, for a machine whose node-engine is older than the field, each container whose busy is not sent.
-func TestAPlanSaysABusyAnOlderEngineIsNotSent(t *testing.T) {
-	modules := []catalogue.Manifest{{Module: "build-agent", Resources: []map[string]any{
-		{"id": "server", "type": "container", "busy": map[string]any{"command": "mesh-builder busy"}},
-		{"id": "agent-env", "type": "file"}}}}
-	lines := busyNotSent(modules, false)
-	if len(lines) != 1 || !strings.Contains(lines[0], "build-agent.server declares busy") ||
-		!strings.Contains(lines[0], "replaced at once") {
-		t.Fatalf("the plan does not say the busy not sent: %v", lines)
-	}
-	if lines := busyNotSent(modules, true); len(lines) != 0 {
-		t.Fatalf("a busy sent is said as not sent: %v", lines)
-	}
-}

cmd/mesh-controller/calls_verb_integration_test.go

@@ -1,36 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"strings"
-	"testing"
-)
-
-func TestCallsIsServedAndSaysWhatItKeeps(t *testing.T) {
-	handlers, behind, err := seatToolHandlers()
-	if err != nil || len(behind) != 0 {
-		t.Fatalf("%v %v", behind, err)
-	}
-	calls, ok := handlers["calls"]
-	if !ok {
-		t.Fatal("calls is not served")
-	}
-	if _, err := calls(context.Background(), json.RawMessage(`{"node":"anchor"}`)); err == nil ||
-		!strings.Contains(err.Error(), `"node"`) {
-		t.Errorf("calls took an argument it does not declare: %v", err)
-	}
-	if _, err := calls(context.Background(), json.RawMessage(`{"call":"call-0-0"}`)); err == nil ||
-		!strings.Contains(err.Error(), "not across a restart") {
-		t.Errorf("an unknown call was not said plainly: %v", err)
-	}
-	got, err := calls(context.Background(), json.RawMessage(`{}`))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if _, listed := got.(map[string]any)["calls"]; !listed {
-		t.Errorf("calls answered %v", got)
-	}
-}

cmd/mesh-controller/calls_verb_test.go

@@ -1,51 +0,0 @@
-package main
-
-import (
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// consoleWaits is how long the console waits for an answer (mesh-tools node-tools/internal/bus
-// RequestTimeout) — the shortest wait of a caller the mesh ships.
-const consoleWaits = 30 * time.Second
-
-// **A call's one answer is never later than its caller or the bus allow** (novox/hq issue 265): a
-// holder answers within AnswerWithin, which must be inside both the console's wait and the window the
-// bus gives an answer. Before, the console waited 30s, the bus 60s, and a push ran as long as it ran.
-func TestAVerbAnswersInsideEveryWaitOnIt(t *testing.T) {
-	if link.AnswerWithin >= consoleWaits/2 {
-		t.Errorf("a call answers within %s: not well inside the console's %s", link.AnswerWithin, consoleWaits)
-	}
-	if link.AnswerWithin >= broker.ResponseTTL {
-		t.Errorf("a call answers within %s, after the bus stops permitting an answer at %s", link.AnswerWithin, broker.ResponseTTL)
-	}
-}
-
-// A push — named or through command — answers before it runs: it sends the machine holding the bus
-// first, and the broker reloading its user list forgets the answer it was about to permit.
-func TestAPushAnswersBeforeItSends(t *testing.T) {
-	for _, c := range []struct {
-		verb string
-		args map[string]any
-		want bool
-	}{
-		{"push", map[string]any{"node": "anchor", "why": "w"}, true},
-		{"push", map[string]any{"why": "w"}, true},
-		{"command", map[string]any{"command": "builds"}, false},
-		{"status", map[string]any{}, false},
-		{"assign", map[string]any{"node": "anchor", "module": "m"}, false},
-	} {
-		argv, err := argvFor(c.verb, c.args)
-		if err != nil {
-			t.Fatalf("%s %v: %v", c.verb, c.args, err)
-		}
-		if got := answersFirst(argv); got != c.want {
-			t.Errorf("%s %v answers first: %v, want %v", c.verb, c.args, got, c.want)
-		}
-	}
-}
-
-// `calls` is served, takes a call's id and nothing else, and says plainly when it holds no such call.

cmd/mesh-controller/chain.go

@@ -1,181 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/chain"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The chain on the bus (novox/hq ADR 0408, design 47 milestone 5): builds, rollouts and assignments are keys of the
-// bus's key-value store, written by the controller that holds the lease. The tables of the controller's store are
-// copied into them once, by the serving controller at its start, and a kind is read from its bucket only once the move
-// has recorded it (inventory.ChainReads).
-
-// chainHolds is whether this process may write the chain now: the lease's gate, the one every act passes.
-func chainHolds(ctx context.Context) error {
-	_, err := theLease.epoch(ctx)
-	return err
-}
-
-// openTheChain opens the chain's buckets on the bus: the serving controller's connection, or one dialled for a command.
-func openTheChain(ctx context.Context) (*chain.Chain, error) {
-	js, err := aBus()
-	if err != nil {
-		return nil, err
-	}
-	// Not closed: a borrowed connection closes nothing, and a dialled one lasts as long as the command.
-	return chain.OnTheBus(ctx, js.Conn(), chainHolds)
-}
-
-// kindChainMoveRefused is the condition of a move that stopped without switching a kind.
-const kindChainMoveRefused = "chain-move-refused"
-
-// chainMoveRetry is how long a move that failed for want of the bus waits before it tries again.
-const chainMoveRetry = 30 * time.Second
-
-// movingTheChain copies the tables into the buckets and records it, at the serving controller's start: after the buckets
-// exist and the lease is held, before anything reads a kind that has not moved. **The first try is made here, before the
-// controller serves**, so what it serves is read from one place. A move that fails for want of the bus is tried again
-// every half minute while the controller serves from the tables; one that is refused — a count that differs, a value
-// over the bus's largest — is raised as an urgent condition, and the tables stay what is read: nothing is half-switched.
-func movingTheChain(ctx context.Context, inv *inventory.Inventory) {
-	say := func(format string, args ...any) { fmt.Printf("chain: "+format+"\n", args...) }
-	// The first try is made here, before the controller serves; the tries after it, while it serves.
-	if movedOrStopped(ctx, inv, say) {
-		return
-	}
-	go func() {
-		for {
-			select {
-			case <-ctx.Done():
-				return
-			case <-time.After(chainMoveRetry):
-			}
-			if movedOrStopped(ctx, inv, say) {
-				return
-			}
-		}
-	}()
-}
-
-// movedOrStopped makes one try at the move and says whether there is nothing more to try: moved, refused, or the controller
-// ending. False for a failure of the kind that is tried again (the bus away, a write not granted yet, the lease not held).
-func movedOrStopped(ctx context.Context, inv *inventory.Inventory, say func(string, ...any)) bool {
-	_, err := inv.MoveChain(ctx, say)
-	var refusal *inventory.Refusal
-	switch {
-	case err == nil:
-		go clearChainMove(ctx)
-		go askAgainSoon(ctx, inv)
-		return true
-	case errors.As(err, &refusal):
-		say("%v", err)
-		go raiseChainMove(ctx, refusal)
-		return true
-	case ctx.Err() != nil:
-		return true
-	}
-	say("the move to the bus did not finish, and the tables are read until it does: %v", err)
-	return false
-}
-
-// chainMoveObservation is the urgent condition for a refused move.
-func chainMoveObservation(r *inventory.Refusal) conditions.Observation {
-	return conditions.Observation{Scope: conditions.ScopeBus, ID: "chain." + r.Kind, Token: kindChainMoveRefused,
-		Kind: kindChainMoveRefused, Severity: conditions.Urgent, Resolver: conditions.ResolverOperator,
-		Summary: "the controller's " + r.Kind + " were not moved to the bus: " + r.Why, Source: "chain move"}
-}
-
-// whenKept runs f once the serving controller keeps conditions: the move runs before they are kept.
-func whenKept(ctx context.Context, f func(k *conditions.Keeper)) {
-	for conditionsFrom == nil {
-		select {
-		case <-ctx.Done():
-			return
-		case <-time.After(time.Second):
-		}
-	}
-	f(conditionsFrom)
-}
-
-func raiseChainMove(ctx context.Context, r *inventory.Refusal) {
-	whenKept(ctx, func(k *conditions.Keeper) {
-		if _, err := k.Observe(ctx, chainMoveObservation(r)); err != nil {
-			fmt.Printf("chain: the condition for the refused move could not be raised: %v\n", err)
-		}
-	})
-}
-
-func clearChainMove(ctx context.Context) {
-	whenKept(ctx, func(k *conditions.Keeper) {
-		for _, kind := range []string{inventory.KindBuilds, inventory.KindRollouts, inventory.KindAssignments} {
-			key := chainMoveObservation(&inventory.Refusal{Kind: kind}).Key()
-			if _, err := k.Clear(ctx, key, "the "+kind+" are on the bus"); err != nil {
-				fmt.Printf("chain: the condition for the move of the %s could not be cleared: %v\n", kind, err)
-			}
-		}
-	})
-}
-
-// attachTheChain gives the inventory of the serving controller the chain on its connection, then moves what has not moved.
-func attachTheChain(ctx context.Context, inv *inventory.Inventory, server *link.Server) error {
-	bus, ok := server.Bus().(link.OverNATS)
-	if !ok {
-		return errors.New("the chain lives on the bus, and this control plane is not on it")
-	}
-	c, err := chain.OnTheBus(ctx, bus.Conn, chainHolds)
-	if err != nil {
-		return err
-	}
-	inv.UseChain(c)
-	movingTheChain(ctx, inv)
-	return nil
-}
-
-// askAgain asks once more for each build request the move found never handed over (novox/hq issue 981 note 7 Q5): the
-// requests a merge could not ask for, which a person's hand `build` would otherwise have to repeat. **At most once**: a
-// request is claimed before it is asked and settled after, so a crash between loses the ask, which is where it stood.
-func askAgain(ctx context.Context, inv *inventory.Inventory) {
-	pending, err := inv.RequestsToAskAgain(ctx)
-	if err != nil {
-		fmt.Printf("chain: the requests never handed over cannot be read: %v\n", err)
-		return
-	}
-	for _, r := range pending {
-		if claimed, err := inv.ClaimToAskAgain(ctx, r.ID); err != nil || !claimed {
-			if err != nil {
-				fmt.Printf("chain: %s cannot be claimed to be asked again: %v\n", r.ID, err)
-			}
-			continue
-		}
-		id, err := askABuild(ctx, buildSource{Repository: r.Repository, Seat: r.Seat}, r.Path, r.Ref)
-		if err != nil {
-			if serr := inv.AskedAgainAs(ctx, r.ID, "not asked again: "+err.Error()); serr != nil {
-				fmt.Printf("chain: %s was not asked again, and that could not be kept: %v\n", r.ID, serr)
-			}
-			fmt.Printf("chain: %s was never handed over and cannot be asked again: %v\n", r.ID, err)
-			continue
-		}
-		recordBuildRequest(ctx, inv, inventory.BuildRequest{ID: id, Repository: r.Repository, Seat: r.Seat, Path: r.Path,
-			Ref: r.Ref, Commit: r.Commit, For: r.For})
-		if err := inv.AskedAgainAs(ctx, r.ID, id); err != nil {
-			fmt.Printf("chain: %s was asked again as %s, and that could not be kept: %v\n", r.ID, id, err)
-		}
-		fmt.Printf("chain: %s, never handed over, is asked again as %s\n", r.ID, id)
-	}
-}
-
-// askAgainSoon waits for the controller to be serving, which an ask needs, and then asks again.
-func askAgainSoon(ctx context.Context, inv *inventory.Inventory) {
-	select {
-	case <-ctx.Done():
-	case <-time.After(time.Minute):
-		askAgain(ctx, inv)
-	}
-}

cmd/mesh-controller/chain_integration_test.go

@@ -1,209 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"context"
-	"fmt"
-	"slices"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/chain"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/lease"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **Acceptance 10 of design 47: one read of an assignment names the commit, the build and the rollout that put it there,
-// and one read of the rollout lists the assignments it changed** (novox/hq ADR 0408, issue 1095). It enters by the live
-// trigger — a merge heard, its batch cut into a plan when the window closed, its build answered through the build seat's
-// path, the plan advanced — and writes no key and no row by hand. Only the machine's end of the send is the test's: the send
-// is recorded as the controller records one it made, and the gate's facts are the store's.
-func TestOneReadOfAnAssignmentNamesItsCommitBuildAndRolloutAndOneReadOfTheRolloutListsItsAssignments(t *testing.T) {
-	open := windowed(t)
-	everyHeadWaits(t)
-	asked := asksRecorded(t)
-	ctx := t.Context()
-	inv := open.inventory
-	if _, err := assign(ctx, open, "anchor", "notes"); err != nil {
-		t.Fatal(err)
-	}
-
-	var sent [][]string
-	wasSend := sendRollout
-	sendRollout = func(ctx context.Context, open *stores, names []string) ([]string, error) {
-		sent = append(sent, append([]string(nil), names...))
-		current, err := open.inventory.CurrentBuilds(ctx)
-		if err != nil {
-			return nil, err
-		}
-		for _, node := range names {
-			digest := fmt.Sprintf("d-%s-%d", node, len(sent))
-			if err := open.inventory.RecordSent(ctx, nodeID(t, open, node), digest,
-				map[string]string{"notes": current["notes"].Commit}); err != nil {
-				return nil, err
-			}
-		}
-		return names, nil
-	}
-	t.Cleanup(func() { sendRollout = wasSend })
-	wasGather := gatherGateFacts
-	gatherGateFacts = func(ctx context.Context, open *stores, component string) (gateFacts, error) {
-		f := gateFacts{now: time.Now(), reports: map[string]inventory.Reported{}, engines: map[string]string{},
-			rolledBack: map[string][]lease.Rollback{}, served: map[string]served{}}
-		reports, err := open.inventory.LastReports(ctx)
-		if err != nil {
-			return f, err
-		}
-		for _, r := range reports {
-			f.reports[r.Node] = r
-		}
-		return f, nil
-	}
-	t.Cleanup(func() { gatherGateFacts = wasGather })
-
-	// A merge of notes is heard, and its window closes: the batch is cut into the walk.
-	hear(t, open, catalogueMerge("c-notes", "notes", t0), t0.Add(time.Second))
-	cutAt(t, open, t0.Add(time.Second+90*time.Second))
-	ws, _ := walks(t, open)
-	if len(ws) != 1 {
-		t.Fatalf("%d walk(s) after the cut", len(ws))
-	}
-	rollout := ws[0].ID
-
-	// The walk asks its first tier (at the cut, or at its next step); the build seat answers, and the controller takes the
-	// outcome in as it does.
-	asking, err := inv.PlanByID(ctx, rollout)
-	if err != nil {
-		t.Fatal(err)
-	}
-	for try := 0; try < 3 && (asking.Modules["notes"] == nil || asking.Modules["notes"].Build == ""); try++ {
-		advancePlans(ctx, open)
-		if asking, err = inv.PlanByID(ctx, rollout); err != nil {
-			t.Fatal(err)
-		}
-	}
-	buildID := asking.Modules["notes"].Build
-	if buildID == "" || len(*asked) != 1 || !strings.HasSuffix((*asked)[0], "#"+buildID) {
-		t.Fatalf("the walk asked %v, and notes' build is %q", *asked, buildID)
-	}
-	digest := "sha256:" + strings.Repeat("a", 64)
-	result := outcome(buildID, "modules/notes", "c-notes", "notes", "")
-	result.ReuseKey = "rk-notes"
-	result.Made = []link.MadeArtifact{{Name: "notes", Kind: "image", Reference: "artifact-store://notes/notes@" + digest}}
-	if err := (builds{inv: inv, open: open}).Built(ctx, result); err != nil {
-		t.Fatal(err)
-	}
-
-	// The walk sends the tier to its first machine.
-	for try := 0; try < 3 && len(sent) == 0; try++ {
-		advancePlans(ctx, open)
-	}
-	if !slices.Equal(slices.Concat(sent...), []string{"anchor"}) {
-		t.Fatalf("sent %v", sent)
-	}
-
-	// One read of the assignment.
-	on, err := inv.AssignmentsOn(ctx, "anchor")
-	a, ok := assignmentOf(on, "notes")
-	if err != nil || !ok {
-		t.Fatalf("the assignments of anchor: %+v %v", on, err)
-	}
-	// Beside it a module pulled in by the assignment, which no send of this walk put anywhere.
-	if wireguard, pulled := assignmentOf(on, "mesh-wireguard"); pulled && (wireguard.Build != "" || wireguard.Rollout != "") {
-		t.Fatalf("a module this rollout did not send names a build or a rollout: %+v", wireguard)
-	}
-	if a.Module != "notes" || a.Commit != "c-notes" || a.Build != buildID || a.Rollout != rollout || a.Artifact != digest ||
-		a.Since.IsZero() || a.Assigned.IsZero() || !a.Stands() {
-		t.Fatalf("the assignment names %+v, not commit c-notes, build %s, artifact %s, rollout %s", a, buildID, digest, rollout)
-	}
-	// One read of the rollout.
-	p, err := inv.PlanByID(ctx, rollout)
-	if err != nil {
-		t.Fatal(err)
-	}
-	wantChange := chain.Change{Node: "anchor", Module: "notes", After: chain.Ref{Build: buildID, Commit: "c-notes"}}
-	if !slices.Contains(p.Changed, wantChange) || !slices.Contains(p.Builds, buildID) || len(p.Steps) != 1 ||
-		p.Steps[0].Node != "anchor" || p.Steps[0].Sent == nil {
-		t.Fatalf("the rollout lists changed %+v, builds %v, steps %+v; want %+v", p.Changed, p.Builds, p.Steps, wantChange)
-	}
-	// And one read of the build names the same commit, with what it published and its reuse key.
-	built, found, err := inv.BuildByID(ctx, buildID)
-	if err != nil || !found || built.Commit != "c-notes" || built.Module != "notes" {
-		t.Fatalf("the build: %+v %v %v", built, found, err)
-	}
-	lately, err := inv.Builds(ctx, "notes", 1)
-	if err != nil || len(lately) != 1 || lately[0].ReuseKey != "rk-notes" || lately[0].Published == nil ||
-		lately[0].Published.Artifact != digest {
-		t.Fatalf("what the build published: %+v %v", lately, err)
-	}
-	// The verbs say the links.
-	if lines := changedLines(p); len(lines) != 2 || !strings.Contains(lines[1], "anchor/notes") ||
-		!strings.Contains(lines[1], buildID) {
-		t.Fatalf("`plans` says %v", lines)
-	}
-	if lines := runLines(on); len(lines) != 2 || !strings.Contains(lines[1], buildID) || !strings.Contains(lines[1], rollout) {
-		t.Fatalf("`node show` says %v", lines)
-	}
-}
-
-// A machine sent again what it runs says nothing new, and a push by hand with no rollout fills what is missing and blanks
-// nothing (issue 1095).
-func TestASendOfWhatAMachineRunsAlreadyChangesNoLinkOfItsAssignment(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	register(t, open, catalogue.Manifest{Module: "notes", Version: "1"})
-	if _, err := assign(ctx, open, "anchor", "notes"); err != nil {
-		t.Fatal(err)
-	}
-	if err := inv.RecordBuild(ctx, inventory.Build{ID: "build-1", Module: "notes", Commit: "c1", Repository: "novox/notes"}); err != nil {
-		t.Fatal(err)
-	}
-	node := nodeID(t, open, "anchor")
-	inRollout := inventory.WithRollout(ctx, "plan-1", map[string]inventory.RolloutModule{"notes": {Commit: "c1", Build: "build-1"}})
-	if err := inv.RecordSent(inRollout, node, "d1", map[string]string{"notes": "c1"}); err != nil {
-		t.Fatal(err)
-	}
-	// Sent again by hand, with no rollout: the assignment still names the rollout that put the build there.
-	if err := inv.RecordSent(ctx, node, "d2", map[string]string{"notes": "c1"}); err != nil {
-		t.Fatal(err)
-	}
-	on, _ := inv.AssignmentsOn(ctx, "anchor")
-	if a, _ := assignmentOf(on, "notes"); a.Rollout != "plan-1" || a.Build != "build-1" || a.Commit != "c1" {
-		t.Fatalf("the assignment names %+v", on)
-	}
-	// A declaration sent by hand with no builds known says nothing of them.
-	if err := inv.RecordSent(ctx, node, "d3", nil); err != nil {
-		t.Fatal(err)
-	}
-	if on, _ = inv.AssignmentsOn(ctx, "anchor"); runOf(on, "notes").Commit != "c1" {
-		t.Fatalf("a send of unknown builds changed %+v", on)
-	}
-	// A module sent a commit no build is kept of is named by its commit alone.
-	if err := inv.RecordSent(ctx, node, "d4", map[string]string{"notes": "c2"}); err != nil {
-		t.Fatal(err)
-	}
-	if on, _ = inv.AssignmentsOn(ctx, "anchor"); runOf(on, "notes").Commit != "c2" || runOf(on, "notes").Build != "" ||
-		runOf(on, "notes").Rollout != "" {
-		t.Fatalf("the assignment after a push of c2 by hand names %+v", on)
-	}
-}
-
-// assignmentOf is one module's assignment among those of a machine: assigning a module assigns what it requires beside it.
-func assignmentOf(on []chain.Assignment, module string) (chain.Assignment, bool) {
-	for _, a := range on {
-		if a.Module == module {
-			return a, true
-		}
-	}
-	return chain.Assignment{}, false
-}
-
-func runOf(on []chain.Assignment, module string) chain.Assignment {
-	a, _ := assignmentOf(on, module)
-	return a
-}

cmd/mesh-controller/chain_links.go

@@ -1,121 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"slices"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/chain"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// The links a rollout makes (novox/hq ADR 0408 §1, design 47 acceptance 10, issue 1095): the send of a plan's tier puts a
-// build on a machine; the assignment of the module there names the build, its commit and the rollout (written by the record of
-// the send, inventory.RecordSent, from the context a send is made in), and the rollout lists the assignments it changed with the
-// build before and after.
-
-// rolloutModules is what a plan sends of each module: the commit and the build of it.
-func rolloutModules(p *inventory.Plan) map[string]inventory.RolloutModule {
-	out := make(map[string]inventory.RolloutModule, len(p.Modules))
-	for m, s := range p.Modules {
-		if s != nil && s.Commit != "" {
-			out[m] = inventory.RolloutModule{Commit: s.Commit, Build: s.Build}
-		}
-	}
-	return out
-}
-
-// sendingAs is the context a plan's send is made in: what is recorded of the send names this rollout.
-func sendingAs(ctx context.Context, p *inventory.Plan) context.Context {
-	return inventory.WithRollout(ctx, p.ID, rolloutModules(p))
-}
-
-// ranBefore is what each module on a machine ran before a send, as the chain names it: its assignment's build and commit,
-// else the commit the machine was last sent for it. Read before the send, which writes the new ones.
-func ranBefore(ctx context.Context, inv *inventory.Inventory, node string) map[string]chain.Ref {
-	was := map[string]chain.Ref{}
-	if sent, known, err := inv.SentBuilds(ctx, node); err == nil && known {
-		for m, commit := range sent {
-			was[m] = chain.Ref{Commit: commit}
-		}
-	}
-	if ran, err := inv.AssignmentRuns(ctx, node); err == nil {
-		for m, r := range ran {
-			was[m] = r
-		}
-	}
-	return was
-}
-
-// noteChanges writes into a plan that a send to a machine changed the assignments of the modules it carried: the build and
-// commit before and after, the builds the rollout carried, and the step taken. A change noted already for the machine and the
-// module is replaced, so a send made again says it once.
-func noteChanges(p *inventory.Plan, node string, modules []string, was map[string]chain.Ref, at time.Time) {
-	for _, m := range modules {
-		s := p.Modules[m]
-		if s == nil {
-			continue
-		}
-		change := chain.Change{Node: node, Module: m, Before: was[m], After: chain.Ref{Build: s.Build, Commit: s.Commit}}
-		if at := slices.IndexFunc(p.Changed, func(c chain.Change) bool { return c.Node == node && c.Module == m }); at >= 0 {
-			change.Before = p.Changed[at].Before
-			p.Changed[at] = change
-		} else {
-			p.Changed = append(p.Changed, change)
-		}
-		if s.Build != "" && !slices.Contains(p.Builds, s.Build) {
-			p.Builds = append(p.Builds, s.Build)
-		}
-	}
-	if !slices.ContainsFunc(p.Steps, func(s chain.Step) bool { return s.Tier == p.Tier && s.Node == node }) {
-		sent := at.UTC()
-		p.Steps = append(p.Steps, chain.Step{Tier: p.Tier, Node: node, Sent: &sent})
-	}
-}
-
-// refSaid is a build and the commit it was made from as a person reads them; "nothing" for a module that ran none.
-func refSaid(r chain.Ref) string {
-	switch {
-	case r.Build == "" && r.Commit == "":
-		return "nothing"
-	case r.Build == "":
-		return "commit " + short(r.Commit)
-	}
-	return r.Build + " (" + short(r.Commit) + ")"
-}
-
-// changedLines say the assignments a rollout changed: the machine, the module, and the build before and after.
-func changedLines(p inventory.Plan) []string {
-	if len(p.Changed) == 0 {
-		return nil
-	}
-	out := []string{"  changed:"}
-	for _, c := range p.Changed {
-		out = append(out, fmt.Sprintf("    %s/%s  %s → %s", c.Node, c.Module, refSaid(c.Before), refSaid(c.After)))
-	}
-	return out
-}
-
-// runLines say what each module assigned to a machine runs there, as its assignment names it: the build, the commit, the
-// rollout that put it there and since when.
-func runLines(assigned []chain.Assignment) []string {
-	var out []string
-	for _, a := range assigned {
-		if a.Build == "" && a.Commit == "" {
-			continue
-		}
-		line := fmt.Sprintf("    %-22s %s", a.Module, refSaid(chain.Ref{Build: a.Build, Commit: a.Commit}))
-		if a.Rollout != "" {
-			line += ", sent by " + a.Rollout
-		}
-		if !a.Since.IsZero() {
-			line += " at " + a.Since.Local().Format("2006-01-02 15:04")
-		}
-		out = append(out, line)
-	}
-	if len(out) == 0 {
-		return nil
-	}
-	return append([]string{"  what they run, as the chain names it:"}, out...)
-}

cmd/mesh-controller/chain_links_test.go

@@ -1,69 +0,0 @@
-package main
-
-import (
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/chain"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// **A rollout lists the assignments it changed, each with the build before and after** (ADR 0408 §1, issue 1095): one
-// change for a machine and a module however often the send is noted, the build before kept from the first, the builds the
-// rollout carried once each, and one step for a machine and a tier.
-func TestARolloutListsTheAssignmentsItChangedWithTheBuildBeforeAndAfter(t *testing.T) {
-	at := time.Date(2026, 10, 18, 3, 0, 0, 0, time.UTC)
-	p := inventory.Plan{ID: "plan-1", Tier: 1, Modules: map[string]*inventory.PlanModule{
-		"notes": {Commit: "c2", Build: "b2"}, "wiki": {Commit: "c2w", Build: "b2w"}, "nothing": nil}}
-	was := map[string]chain.Ref{"notes": {Build: "b1", Commit: "c1"}, "wiki": {Commit: "c1w"}}
-
-	noteChanges(&p, "anchor", []string{"notes", "wiki", "nothing"}, was, at)
-	noteChanges(&p, "laptop", []string{"notes"}, nil, at)
-	// The send noted again, after what was sent had become what the machine runs: the first before stands.
-	noteChanges(&p, "anchor", []string{"notes"}, map[string]chain.Ref{"notes": {Build: "b2", Commit: "c2"}}, at.Add(time.Minute))
-
-	want := []chain.Change{
-		{Node: "anchor", Module: "notes", Before: chain.Ref{Build: "b1", Commit: "c1"}, After: chain.Ref{Build: "b2", Commit: "c2"}},
-		{Node: "anchor", Module: "wiki", Before: chain.Ref{Commit: "c1w"}, After: chain.Ref{Build: "b2w", Commit: "c2w"}},
-		{Node: "laptop", Module: "notes", After: chain.Ref{Build: "b2", Commit: "c2"}},
-	}
-	if len(p.Changed) != len(want) {
-		t.Fatalf("changed %+v", p.Changed)
-	}
-	for k := range want {
-		if p.Changed[k] != want[k] {
-			t.Errorf("change %d is %+v, want %+v", k, p.Changed[k], want[k])
-		}
-	}
-	if len(p.Builds) != 2 || p.Builds[0] != "b2" || p.Builds[1] != "b2w" {
-		t.Errorf("builds %v", p.Builds)
-	}
-	if len(p.Steps) != 2 || p.Steps[0].Node != "anchor" || p.Steps[0].Tier != 1 || p.Steps[0].Sent == nil || p.Steps[1].Node != "laptop" {
-		t.Errorf("steps %+v", p.Steps)
-	}
-	lines := changedLines(p)
-	if len(lines) != 4 || !strings.Contains(lines[1], "anchor/notes  b1 (c1) → b2 (c2)") ||
-		!strings.Contains(lines[3], "laptop/notes  nothing → b2 (c2)") {
-		t.Errorf("changed lines %q", lines)
-	}
-	if got := changedLines(inventory.Plan{}); got != nil {
-		t.Errorf("a plan that changed nothing says %q", got)
-	}
-}
-
-func TestWhatAMachineRunsIsSaidAsItsAssignmentNamesIt(t *testing.T) {
-	at := time.Date(2026, 10, 18, 3, 0, 0, 0, time.UTC)
-	lines := runLines([]chain.Assignment{
-		{Node: "anchor", Module: "notes", Build: "b2", Commit: "c2c2c2c2c2c2", Rollout: "plan-1", Since: at},
-		{Node: "anchor", Module: "web", Commit: "c3"},
-		{Node: "anchor", Module: "never-sent"},
-	})
-	if len(lines) != 3 || !strings.Contains(lines[1], "notes") || !strings.Contains(lines[1], "b2 (c2c2c2c2)") ||
-		!strings.Contains(lines[1], "sent by plan-1") || !strings.Contains(lines[2], "web") || !strings.Contains(lines[2], "commit c3") {
-		t.Fatalf("lines %q", lines)
-	}
-	if runLines([]chain.Assignment{{Node: "a", Module: "m"}}) != nil {
-		t.Fatal("a module never sent is said to run something")
-	}
-}

cmd/mesh-controller/changeplan.go

@@ -1,221 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"path"
-	"slices"
-	"sort"
-	"strings"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// The change plan (novox/hq ADR 0238): **one commit, one plan** — what a change does to the mesh, computed
-// from its diffset (a repository, the branch it merges into, the commit at hand) by the planner, never by
-// a mapping of its own. reachOfMerge answers what moves and what follows it; this adds where each module
-// goes — the deploy plan, machine by machine in the build plan's order — and what is not an ordinary
-// send. A pull request's check posts it with its verdict; the release a merge makes follows the same
-// planner, so the two can be compared.
-
-// policyOf is a module's upgrade policy, as the controller holds it; false when it cannot be read.
-type policyOf func(module string) (inventory.Upgrade, bool)
-
-// changePlanOf is the change plan of a reach: pure, so it is tested without a store.
-func changePlanOf(repository, base, head string, r mergeReach, entries []inventory.Entry, policy policyOf) link.ChangePlan {
-	p := link.ChangePlan{Repository: repository, Base: base, Head: head, Moved: r.Moved(), Dependents: r.Dependents(),
-		New: r.Added, Unread: r.Unread, Tiers: r.Plan.Tiers}
-	byName := map[string]inventory.Entry{}
-	for _, e := range entries {
-		byName[e.Manifest.Module] = e
-	}
-	// The machine holding the bus, whose declaration carries every module's grants (novox/hq issue 490).
-	holder := ""
-	for _, e := range entries {
-		if e.Manifest.BusUsers != "" && e.Manifest.ClaimsSeat(catalogue.BrokerSeat) && len(e.On) > 0 {
-			holder = e.On[0]
-		}
-	}
-	var granting []string
-	machines := map[string]*link.MachinePlan{}
-	machine := func(name string) *link.MachinePlan {
-		if machines[name] == nil {
-			machines[name] = &link.MachinePlan{Machine: name}
-		}
-		return machines[name]
-	}
-	for _, tier := range r.Plan.Tiers {
-		for _, name := range tier {
-			e, held := byName[name]
-			if !held {
-				continue
-			}
-			u, known := policy(name)
-			waits := known && !u.RollOut
-			for _, on := range e.On {
-				if waits {
-					machine(on).Waits = append(machine(on).Waits, name)
-				} else {
-					machine(on).Receives = append(machine(on).Receives, name)
-				}
-			}
-			if !waits && holder != "" && !(len(e.On) == 1 && e.On[0] == holder) && len(e.On) > 0 &&
-				!slices.Contains(granting, name) {
-				granting = append(granting, name)
-			}
-			switch {
-			case (name == "nats" || catalogue.ProvidesBus(e.Manifest)) && len(e.On) > 0:
-				// Said before the merge (novox/hq issue 336): a new bus build holds every send to the bus's machine
-				// until a person takes the step, so merging it is a promise to take it.
-				p.Steps = append(p.Steps, fmt.Sprintf("%s: %s is never sent by an ordinary send, and until %s runs, "+
-					"nothing else is sent to %s either — unless the new build turns out the same as the one running there "+
-					"(issue 280)", busUpgradeNeeded, name, busUpgradeVerb, strings.Join(e.On, ", ")))
-			case name == "nats" || catalogue.ProvidesBus(e.Manifest):
-				p.Steps = append(p.Steps, "a planned bus step: the bus is upgraded by `bus upgrade`, never by an ordinary send")
-			case waits && len(e.On) > 0 && (u.From == catalogue.FromModule || u.From == catalogue.FromData):
-				// Judged per machine by the walk, against the build each was last sent (novox/hq ADR 0377).
-				p.Steps = append(p.Steps, fmt.Sprintf("%s waits for a person: its policy records (%s) — unless on a machine "+
-					"its move recreates none of its containers and moves none of its data, which the walk judges and then sends",
-					name, orNone(u.From)))
-			case waits && len(e.On) > 0:
-				p.Steps = append(p.Steps, fmt.Sprintf("%s waits for a person: its policy records (%s)", name,
-					orNone(u.From)))
-			}
-			if len(e.Manifest.Provides) > 0 && len(e.On) > 0 {
-				var offers []string
-				for _, o := range e.Manifest.Provides {
-					offers = append(offers, o.Name)
-				}
-				p.Steps = append(p.Steps, fmt.Sprintf("%s provides %s: its consumers are sent again after it",
-					name, strings.Join(offers, ", ")))
-			}
-			if e.Manifest.Data != nil && len(e.On) > 0 {
-				p.Steps = append(p.Steps, fmt.Sprintf("%s keeps data (ADR 0233): what it holds is backed up before it moves", name))
-			}
-		}
-	}
-	if len(granting) > 0 {
-		// Said before the merge (novox/hq issue 490): what the walk does when the change alters the bus's
-		// user list. Whether it does is known only once the builds are registered, so it is said as a rule.
-		p.Steps = append(p.Steps, fmt.Sprintf("%s: if this changes what the bus's user list says (a new tool, "+
-			"subject or user), %s is sent that list alone, every build there kept, before %s is judged on its first "+
-			"machine", grantsStepWord, holder, strings.Join(granting, ", ")))
-	}
-	var names []string
-	for name := range machines {
-		names = append(names, name)
-	}
-	sort.Strings(names)
-	for _, name := range names {
-		p.Machines = append(p.Machines, *machines[name])
-	}
-	p.Summary = summaryOf(p)
-	p.Class = changeClassOf(p, entries)
-	return p
-}
-
-// classNone is the class of a change that moves no module: nothing for a walk to move (novox/hq ADR 0313 §2).
-const classNone = "none"
-
-// changeClassOf is a change plan's class (novox/hq ADR 0313 §2): that of the slowest-budgeted module it moves,
-// itself or as a dependent — core when one is on the controller's own path or holds the mesh's resolver, leaf
-// otherwise — and none when it moves nothing. A module it adds a directory for counts by its own class: the
-// catalogue names a module's directory by the module, so the directory's last element is its name. The graph holds
-// no manifest of it yet, so a new module is core by its name alone (on the controller's own path), never by a
-// resolver claim its manifest makes.
-func changeClassOf(p link.ChangePlan, entries []inventory.Entry) string {
-	if len(p.Moved) == 0 && len(p.Dependents) == 0 && len(p.New) == 0 {
-		return classNone
-	}
-	modules := append(append([]string{}, p.Moved...), p.Dependents...)
-	for _, dir := range p.New {
-		if name := path.Base(strings.Trim(dir, "/")); name != "." && name != "/" && name != "" {
-			modules = append(modules, name)
-		}
-	}
-	return classOfModules(modules, entries)
-}
-
-// grantsStepWord names the grants step (novox/hq issue 490): the bus's user list sent alone to the machine
-// holding the bus ahead of a walk's gate. Not the bus step, which replaces the bus itself.
-const grantsStepWord = "grants step"
-
-// busUpgradeNeeded is how a change plan says that merging it holds the bus's machine for a person's step.
-const busUpgradeNeeded = "merging this needs a person's bus upgrade"
-
-// summaryOf is a change plan in one line: what it builds, where it goes, and whether the bus moves.
-func summaryOf(p link.ChangePlan) string {
-	if len(p.Moved) == 0 && len(p.New) == 0 {
-		return "builds nothing: the change touches no module of the mesh's graph"
-	}
-	var parts []string
-	what := strings.Join(p.Moved, ", ")
-	if len(p.Dependents) > 0 {
-		what += fmt.Sprintf(" (+%d dependent(s))", len(p.Dependents))
-	}
-	if len(p.New) > 0 {
-		if what != "" {
-			what += ", "
-		}
-		what += "new: " + strings.Join(p.New, ", ")
-	}
-	var to []string
-	for _, m := range p.Machines {
-		if len(m.Receives) > 0 {
-			to = append(to, m.Machine)
-		}
-	}
-	if len(to) > 0 {
-		parts = append(parts, "builds "+what+" → "+strings.Join(to, ", "))
-	} else {
-		parts = append(parts, "builds "+what+", sent nowhere")
-	}
-	bus := "no bus step"
-	for _, s := range p.Steps {
-		switch {
-		case strings.HasPrefix(s, busUpgradeNeeded):
-			bus = busUpgradeNeeded
-		case strings.HasPrefix(s, "a planned bus step") && bus == "no bus step":
-			bus = "a bus step"
-		}
-	}
-	parts = append(parts, bus)
-	waiting := 0
-	for _, m := range p.Machines {
-		waiting += len(m.Waits)
-	}
-	if waiting > 0 {
-		parts = append(parts, fmt.Sprintf("%d wait(s) for a person", waiting))
-	}
-	return strings.Join(parts, "; ")
-}
-
-// planText is a change plan as a person reads it, for the pull request's comment.
-func planText(p link.ChangePlan) string {
-	var b strings.Builder
-	fmt.Fprintf(&b, "change plan of %s at %.8s into %s: %s\n", p.Repository, p.Head, p.Base, p.Summary)
-	for i, tier := range p.Tiers {
-		fmt.Fprintf(&b, "  tier %d: %s\n", i, strings.Join(tier, ", "))
-	}
-	for _, m := range p.Machines {
-		line := "  " + m.Machine + ": "
-		if len(m.Receives) > 0 {
-			line += "receives " + strings.Join(m.Receives, ", ")
-		}
-		if len(m.Waits) > 0 {
-			if len(m.Receives) > 0 {
-				line += "; "
-			}
-			line += "waits for a person: " + strings.Join(m.Waits, ", ")
-		}
-		b.WriteString(line + "\n")
-	}
-	for _, s := range p.Steps {
-		b.WriteString("  - " + s + "\n")
-	}
-	if len(p.Unread) > 0 {
-		fmt.Fprintf(&b, "  read by no module's build: %s\n", strings.Join(p.Unread, ", "))
-	}
-	return b.String()
-}

cmd/mesh-controller/changeplan_test.go

@@ -1,78 +0,0 @@
-package main
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **One commit, one change plan** (novox/hq ADR 0238): the planner's reach, laid out machine by machine in
-// the build plan's order, with what is not an ordinary send said — the bus step, a module that waits for a
-// person, a provider whose consumers follow it.
-func TestAChangePlanSaysWhatEachMachineReceives(t *testing.T) {
-	const catalogue_ = "http://forge.internal:20000/novox/mesh-catalog.git"
-	entry := func(name, path string, on ...string) inventory.Entry {
-		e := fromRepo(name, catalogue_, path)
-		e.Source.BuiltFrom = "old"
-		e.On = on
-		return e
-	}
-	nats := entry("nats", "modules/nats", "anchor")
-	nats.Manifest.Provides = []catalogue.Offer{{Name: "mesh-bus"}}
-	gitea := entry("gitea", "modules/gitea", "anchor")
-	held := entry("photos", "modules/photos", "anchor", "laptop")
-	tools := fromRepo("node-tools", "http://forge.internal:20000/novox/mesh-tools.git", "node-tools")
-	tools.On = []string{"anchor", "laptop"}
-	entries := []inventory.Entry{nats, gitea, held, tools}
-	edges := []inventory.Edge{{From: "node-tools", To: "nats", Kind: inventory.EdgeStandsOn}}
-	policy := func(module string) (inventory.Upgrade, bool) {
-		if module == "photos" {
-			return inventory.Upgrade{RollOut: false, From: "a person"}, true
-		}
-		return inventory.Upgrade{RollOut: true}, true
-	}
-	plan := func(paths ...string) link.ChangePlan {
-		m := link.SourceMoved{Owner: "novox", Repo: "mesh-catalog", Base: "main", Commit: "head", Paths: paths}
-		return changePlanOf("novox/mesh-catalog", "main", "head", reachOfMerge(m, entries, nil, edges), entries, policy)
-	}
-
-	p := plan("modules/gitea/index.ts")
-	if p.Summary != "builds gitea → anchor; no bus step" {
-		t.Errorf("one module's change reads %q", p.Summary)
-	}
-
-	p = plan("modules/nats/Dockerfile", "modules/photos/x.js")
-	if !strings.Contains(p.Summary, "needs a person's bus upgrade") || !strings.Contains(p.Summary, "2 wait(s) for a person") ||
-		!strings.Contains(p.Summary, "(+1 dependent(s))") {
-		t.Errorf("the bus and a held module read %q", p.Summary)
-	}
-	got := map[string]string{}
-	for _, m := range p.Machines {
-		got[m.Machine] = strings.Join(m.Receives, ",") + "|" + strings.Join(m.Waits, ",")
-	}
-	// The bus first, what stands on it after: the build plan's order, per machine.
-	if got["anchor"] != "nats,node-tools|photos" || got["laptop"] != "node-tools|photos" {
-		t.Errorf("the deploy plan reads %v", got)
-	}
-	text := strings.Join(p.Steps, "\n")
-	// Said before the merge (novox/hq issue 336): merging it holds every send to the bus's machine until a
-	// person runs the bus's step, and the verb that does.
-	for _, want := range []string{"merging this needs a person's bus upgrade", "nothing else is sent to anchor",
-		"mesh_call mesh-controller.bus", "the same as the one running there", "photos waits for a person",
-		"nats provides mesh-bus"} {
-		if !strings.Contains(text, want) {
-			t.Errorf("the steps do not say %q:\n%s", want, text)
-		}
-	}
-
-	p = plan("merge-check.sh")
-	if !strings.HasPrefix(p.Summary, "builds nothing") || len(p.Machines) != 0 || strings.Join(p.Unread, ",") != "merge-check.sh" {
-		t.Errorf("a root file's plan reads %+v", p)
-	}
-	if !strings.Contains(planText(p), "read by no module's build: merge-check.sh") {
-		t.Errorf("the plan's text does not say why nothing is built:\n%s", planText(p))
-	}
-}

cmd/mesh-controller/check.go

@@ -7,11 +7,8 @@ import (
 	"os"
 	"path/filepath"
 	"sort"
-	"strings"
-	"time"
 
 	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/link"
 )
 
 // moduleCheck judges manifests where they are written, with no mesh (novox/hq ADR 0037, issue 148).
@@ -27,20 +24,7 @@ import (
 // mesh seat is judged fully only at registration. A seat another module declares is unknown unless
 // that module's manifest is passed too. Both are printed as a note, not as a problem — a check that
 // refused what it could not see would teach people to ignore it.
-//
-// **And every identity against every bound it meets** (novox/hq ADR 0225, issue 263): each module's
-// identity, on a machine whose name is `longestMachine` characters, against the bound of every
-// provision it wants that a manifest given here offers. An overflow is refused in the pull request
-// that introduces it — a new requirement, a lowered bound, a longer slug — instead of on the
-// provider's machine when a real machine's name first meets the module's.
-// SomeManifestsVar, set by the merge gate, says the manifests given are only some of their repository's.
-const SomeManifestsVar = "MESH_MODULE_CHECK_SOME"
-
 func moduleCheck(paths []string, out io.Writer) error {
-	return moduleCheckFor(paths, catalogue.DefaultLongestMachine, out)
-}
-
-func moduleCheckFor(paths []string, longestMachine int, out io.Writer) error {
 	if len(paths) == 0 {
 		return errors.New("module check <manifest.json>... — one file per module; pass every " +
 			"manifest of a repository together so the rules between them are checked too")
@@ -48,24 +32,6 @@ func moduleCheckFor(paths []string, longestMachine int, out io.Writer) error {
 	shelf := catalogue.Shelf{}
 	faulted := map[string]bool{}
 	failed := 0
-	// The list of predefined keys at the root of the repository above each manifest (novox/hq ADR 0348 §7), read
-	// once per repository: a manifest naming a key is judged against the list its own tree holds.
-	lists := map[string]catalogue.PredefinedList{}
-	listOf := func(path string) (catalogue.PredefinedList, error) {
-		root := catalogue.RepositoryRoot(filepath.Dir(path))
-		if root == "" {
-			return nil, nil
-		}
-		if list, read := lists[root]; read {
-			return list, nil
-		}
-		list, err := catalogue.ReadPredefined(root)
-		if err != nil {
-			return nil, err
-		}
-		lists[root] = list
-		return list, nil
-	}
 	for _, path := range paths {
 		raw, err := os.ReadFile(path)
 		if err != nil {
@@ -73,18 +39,7 @@ func moduleCheckFor(paths []string, longestMachine int, out io.Writer) error {
 			failed++
 			continue
 		}
-		list, err := listOf(path)
-		if err != nil {
-			fmt.Fprintf(out, "%s: %v\n", path, err)
-			failed++
-			continue
-		}
-		m, err := catalogue.ParseManifestWith(raw, list)
-		if err == nil {
-			// Each template's text read from the tree beside the manifest, and judged as inline content is
-			// (novox/hq ADR 0349 §2): a missing template is refused by name.
-			m, err = catalogue.WithTemplatesFrom(m, filepath.Dir(path))
-		}
+		m, err := catalogue.ParseManifest(raw)
 		if err != nil {
 			fmt.Fprintf(out, "%s: %v\n", path, err)
 			failed++
@@ -98,37 +53,6 @@ func moduleCheckFor(paths []string, longestMachine int, out io.Writer) error {
 		}
 		// A definition names no installation (novox/hq ADR 0112, ADR 0155): judged here, in the
 		// catalogue-wide test, and at registration, which refuses in the same words.
-		if wrong := catalogue.TrustProblems(m); len(wrong) > 0 {
-			for _, p := range wrong {
-				fmt.Fprintf(out, "%s: %s\n", path, p)
-			}
-			failed += len(wrong)
-			faulted[m.Module] = true
-		}
-		// A module that declares a setting names the keys of its mergeable files (novox/hq ADR 0326 §3,
-		// issue 574): judged where a definition is written, as at registration, never where a stored
-		// build is read again.
-		if wrong := catalogue.WrittenSettingsProblems(m); len(wrong) > 0 {
-			for _, p := range wrong {
-				fmt.Fprintf(out, "%s: %s\n", path, p)
-			}
-			failed += len(wrong)
-			faulted[m.Module] = true
-		}
-		// A module lives whole in one repository (novox/hq ADR 0420 §1, issue 1019): when the check is told the
-		// repository it runs for (MESH_CHECK_REPOSITORY, set by the build's check), an artifact building from
-		// another is refused, as the merge gate refuses it. A run by hand names no repository and judges none.
-		if repo := os.Getenv("MESH_CHECK_REPOSITORY"); repo != "" && m.Build != nil {
-			for _, a := range m.Build.Artifacts {
-				if a.Context != nil && a.Context.Repository != "" && !sameRepository(a.Context.Repository,
-					link.SourceMoved{Owner: ownerOf(repo), Repo: repoOf(repo)}) {
-					fmt.Fprintf(out, "%s: %s builds artifact %s from %s: a module lives whole in one repository "+
-						"(novox/hq ADR 0420 §1)\n", path, m.Module, a.Name, a.Context.Repository)
-					failed++
-					faulted[m.Module] = true
-				}
-			}
-		}
 		if named := catalogue.InstallationProblems(m); len(named) > 0 {
 			for _, p := range named {
 				fmt.Fprintf(out, "%s: %s\n", path, p)
@@ -142,77 +66,18 @@ func moduleCheckFor(paths []string, longestMachine int, out io.Writer) error {
 	// Between the manifests: a seat declared twice, a use of a seat nothing declares, a claim on
 	// a seat that does not exist. Run only over what parsed, because a problem inside one manifest
 	// has already been said and would be said again here in a worse form.
-	//
-	// **Over some of a repository's manifests, a seat none of them declares is a note** (novox/hq issue 364), as
-	// this command's own word says above: the merge gate passes only the manifests a change touches, and says so
-	// with SomeManifestsVar, so a module that uses or claims a seat another module declares (the operator
-	// channel's, a channel bench) was refused there for a manifest it was not given. Given every manifest — the
-	// catalogue's own check, and registration — it stays a refusal.
-	some := os.Getenv(SomeManifestsVar) != ""
 	problems := catalogue.CatalogueProblems(shelf)
 	sort.Strings(problems)
 	for _, p := range problems {
-		if some && catalogue.IsUndeclaredSeat(p) {
-			fmt.Fprintf(out, "note: %s among the manifests given; registration judges it against the whole catalogue, "+
-				"and passing the declaring module's manifest too judges it here\n", p)
-			continue
-		}
-		fmt.Fprintln(out, p)
-		failed++
-	}
-
-	// Between the manifests too: an identity against the bounds of the provisions it wants, which
-	// only the provider's manifest states.
-	identities := catalogue.IdentityProblems(shelf, longestMachine)
-	sort.Strings(identities)
-	for _, p := range identities {
 		fmt.Fprintln(out, p)
 	}
-	failed += len(identities)
-
-	// And the data each module keeps (novox/hq ADR 0233): a provider that grants says what it keeps for
-	// its consumers, a directory a container writes is declared, and no backup line is written by hand.
-	data := catalogue.DataProblems(shelf)
-	sort.Strings(data)
-	for _, p := range data {
-		fmt.Fprintln(out, p)
-	}
-	failed += len(data)
+	failed += len(problems)
 
 	var names []string
 	for name := range shelf {
 		names = append(names, name)
 	}
 	sort.Strings(names)
-
-	// **Every long-running resource says how it is ready** (novox/hq ADR 0240 rule 8): warned until the
-	// date, refused from it. The count is the catalogue's: its merge check keeps the number and lets a
-	// change lower it, never raise it.
-	undeclared := 0
-	required := !checkNow().Before(catalogue.HealthRequiredFrom)
-	for _, name := range names {
-		missing := catalogue.Undeclared(shelf[name])
-		undeclared += len(missing)
-		if len(missing) == 0 {
-			continue
-		}
-		if required {
-			for _, id := range missing {
-				fmt.Fprintf(out, "%s: %s stays up and does not say how it is ready: a long-running resource declares "+
-					"health since %s (novox/hq ADR 0240 rule 8)\n", name, id, catalogue.HealthRequiredFrom.Format("2006-01-02"))
-			}
-			failed += len(missing)
-			faulted[name] = true
-		}
-	}
-
-	// **A file that asks for a setting and does not say whether it is trusted counts as trusted** (novox/hq issue
-	// 339): listed and counted, never refused, so an author can opt out a file nothing trusts.
-	unsaid := 0
-	for _, name := range names {
-		unsaid += len(catalogue.UnsaidTrust(shelf[name]))
-	}
-
 	for _, name := range names {
 		m := shelf[name]
 		if faulted[name] {
@@ -225,84 +90,17 @@ func moduleCheckFor(paths []string, longestMachine int, out io.Writer) error {
 		if len(m.Invokes) > 0 {
 			fmt.Fprintf(out, ", invokes %s", joinInvokes(m.Invokes))
 		}
-		// The state it keeps and reads (novox/hq ADR 0201), so a reviewer sees what lands on the bus.
-		if len(m.State) > 0 {
-			kept := make([]string, 0, len(m.State))
-			for _, s := range m.State {
-				kept = append(kept, s.Name)
-			}
-			fmt.Fprintf(out, ", keeps state %s", strings.Join(kept, ", "))
-		}
-		// And the logs it keeps, with their caps (novox/hq ADR 0297).
-		if len(m.Logs) > 0 {
-			kept := make([]string, 0, len(m.Logs))
-			for _, l := range m.Logs {
-				kept = append(kept, fmt.Sprintf("%s (%d MiB)", l.Name, l.Cap()))
-			}
-			fmt.Fprintf(out, ", keeps log %s", strings.Join(kept, ", "))
-		}
-		if len(m.Reads) > 0 {
-			fmt.Fprintf(out, ", reads %s", strings.Join(m.Reads, ", "))
-		}
-		// The data it keeps, by class, so a reviewer sees what the mesh will protect and how.
-		if items := m.DataItems(); len(items) > 0 {
-			kept := make([]string, 0, len(items))
-			for _, it := range items {
-				kept = append(kept, it.ID+" ("+it.Class+")")
-			}
-			fmt.Fprintf(out, ", keeps %s", strings.Join(kept, ", "))
-		}
-		// How what it runs is ready (ADR 0240): each declared check, and what is judged by liveness alone.
-		var checks []string
-		for _, r := range m.Resources {
-			if h, has, _ := catalogue.ReadHealth(r); has {
-				checks = append(checks, fmt.Sprintf("%v by %s", r["id"], catalogue.HealthWords(h)))
-			}
-		}
-		// And its own runtime's, where it runs as its own account (novox/hq ADR 0366).
-		if own, has := catalogue.OwnRuntimeHealth(m); has {
-			if h, _, _ := catalogue.ReadHealth(own); h.Kind != "" {
-				checks = append(checks, fmt.Sprintf("%v by %s", own["id"], catalogue.HealthWords(h)))
-			}
-		}
-		if len(checks) > 0 {
-			fmt.Fprintf(out, ", ready: %s", strings.Join(checks, "; "))
-		}
-		if missing := catalogue.UnsaidTrust(m); len(missing) > 0 {
-			fmt.Fprintf(out, "; WARNING: %s ask(s) for a setting and do(es) not say whether it is trusted, so it counts as "+
-				"trusted: set at the terminal alone; say %q false where nothing trusts it (novox/hq issue 339)",
-				strings.Join(missing, ", "), catalogue.TrustedField)
-		}
-		if missing := catalogue.Undeclared(m); len(missing) > 0 {
-			fmt.Fprintf(out, "; WARNING: %s stay(s) up and say(s) not how it is ready — judged by liveness alone, "+
-				"refused from %s (ADR 0240 rule 8)", strings.Join(missing, ", "), catalogue.HealthRequiredFrom.Format("2006-01-02"))
-		}
 		fmt.Fprintln(out)
 	}
-	// The count the catalogue keeps (ADR 0240 rule 8), in a line its merge check reads.
-	fmt.Fprintf(out, "%s %d\n", UndeclaredHealthLine, undeclared)
-	fmt.Fprintf(out, "%s %d\n", UnsaidTrustLine, unsaid)
 	if failed > 0 {
 		return fmt.Errorf("%d problem(s) in %d manifest(s)", failed, len(paths))
 	}
 	fmt.Fprintf(out, "%d manifest(s) checked. Judged against the seats this binary carries; a claim on "+
 		"one of the mesh's own seats is judged fully at registration, and a seat declared by a "+
-		"module not given here reads as unknown. Identities judged on a %d-character machine name, "+
-		"against the bounds of the providers given here\n", len(paths), longestMachine)
+		"module not given here reads as unknown\n", len(paths))
 	return nil
 }
 
-// UndeclaredHealthLine starts the line `module check` says the count of long-running resources without
-// `health` in, over the manifests given: the catalogue's merge check compares it with the number it keeps.
-const UndeclaredHealthLine = "long-running resources without health:"
-
-// UnsaidTrustLine starts the line `module check` says the count of files that ask for a setting and do not say
-// whether it is trusted, and so count as trusted (novox/hq issue 339).
-const UnsaidTrustLine = "files asking for a setting without saying whether it is trusted:"
-
-// checkNow is the clock `module check` judges the date by; a test sets it.
-var checkNow = time.Now
-
 func joinInvokes(invokes []string) string {
 	if len(invokes) == 1 && invokes[0] == "*" {
 		return "every tool"

cmd/mesh-controller/check_builds.go

@@ -1,87 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"os"
-	"strconv"
-
-	"github.com/novox/mesh-controller/internal/builder"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// A pull request's check builds go when it closes (novox/hq ADR 0350 §5): the build seat keeps them in the artifact
-// store's scratch namespace for the walk of its merge to take. **Let go of where the moment is heard**: the
-// controller ends the walk answering a merge — after that walk took what it reuses — and the delivery's owner, which
-// hears the forge say a pull request closed unmerged, asks the `forget-checks` verb; both let go through the store,
-// as the controller's own collection does. The build seat's holders let go of anything a week old on their own,
-// so a word lost here leaves a week's builds, never more.
-
-// checkBuildsIn is the scratch namespace as the controller reaches the artifact store.
-func checkBuildsIn(ctx context.Context, inv *inventory.Inventory) (builder.Scratch, error) {
-	shelf, err := inv.Catalogue(ctx)
-	if err != nil {
-		return nil, err
-	}
-	address, err := artifactStoreAddress(ctx, inv, shelf, "")
-	if err != nil {
-		return nil, err
-	}
-	if address == "" {
-		return nil, errors.New("the artifact store is not on the mesh's network")
-	}
-	return builder.Registry{Address: address}, nil
-}
-
-// forgetChecks lets go of a pull request's check builds and answers what it did.
-var forgetChecks = func(ctx context.Context, inv *inventory.Inventory, pull builder.PullRef) (string, error) {
-	scratch, err := checkBuildsIn(ctx, inv)
-	if err != nil {
-		return "", err
-	}
-	n, err := scratch.Forget(ctx, pull)
-	if err != nil {
-		return "", fmt.Errorf("%s: %d check(s)' builds let go of, and not all: %w", pull, n, err)
-	}
-	return fmt.Sprintf("%s: %d check(s)' builds let go of", pull, n), nil
-}
-
-// forgetChecksOfWalk lets go, on the save that ends a walk, of the check builds of every pull request whose merge
-// it answers: the walk took what it reuses. Said, never fatal.
-func forgetChecksOfWalk(ctx context.Context, inv *inventory.Inventory, p inventory.Plan) {
-	if p.WalkSaid != inventory.WalkEnded || p.Delivery == nil {
-		return
-	}
-	for _, pull := range reuseAskOf(&p).Pulls {
-		said, err := forgetChecks(ctx, inv, builder.PullRef{Owner: pull.Owner, Repo: pull.Repo, Number: pull.Number})
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "%s: its check builds stay until the week's sweep: %v\n", p.ID, err)
-			continue
-		}
-		fmt.Printf("%s: %s\n", p.ID, said)
-	}
-}
-
-// forgetChecksCommand is `forget-checks <owner> <repo> <number>`: the verb the delivery's owner asks when the forge
-// says a pull request closed unmerged (novox/hq ADR 0350 §5).
-func forgetChecksCommand(ctx context.Context, args []string) error {
-	if len(args) != 3 {
-		return errors.New("forget-checks <owner> <repo> <number>")
-	}
-	number, err := strconv.Atoi(args[2])
-	if err != nil || number <= 0 {
-		return fmt.Errorf("%q is not a pull request's number", args[2])
-	}
-	open, err := openStores(ctx)
-	if err != nil {
-		return err
-	}
-	defer open.Close()
-	said, err := forgetChecks(ctx, open.inventory, builder.PullRef{Owner: args[0], Repo: args[1], Number: number})
-	if err != nil {
-		return err
-	}
-	fmt.Println(said)
-	return nil
-}

cmd/mesh-controller/check_builds_integration_test.go

@@ -1,102 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"encoding/json"
-	"reflect"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-func TestOnlyAWalksAskTakesAChecksBuildAndADryRunNever(t *testing.T) {
-	p := &inventory.Plan{Delivery: &inventory.PlanDelivery{Merges: []inventory.PlanMerge{
-		{Repository: "novox/shop", Number: 7}, {Repository: "http://forge.invalid/novox/web.git", Number: 3},
-		{Repository: "novox/shop", Number: 7}, {Repository: "novox/shop"}}}}
-	asked := reuseAskOf(p)
-	if want := []link.PullRef{{Owner: "novox", Repo: "shop", Number: 7}, {Owner: "novox", Repo: "web", Number: 3}}; !reflect.DeepEqual(asked.Pulls, want) {
-		t.Fatalf("the walk names %+v", asked.Pulls)
-	}
-	walk := withReuse(t.Context(), asked)
-	if reuseAsked(walk, false) != asked {
-		t.Fatal("a walk's ask does not carry its leave")
-	}
-	if reuseAsked(walk, true) != nil {
-		t.Fatal("a dry run carries a leave to take a check's build")
-	}
-	if reuseAsked(t.Context(), false) != nil {
-		t.Fatal("an ask that is not a walk's carries a leave")
-	}
-}
-
-func TestAReusedCheckBuildIsRegisteredByItsDigestAndGatedAsABuiltOne(t *testing.T) {
-	withTheGate(t) // the first-machine gate's own path (novox/hq ADR 0360 keeps it for earlier walks)
-	g := aGateMesh(t)
-	ctx := t.Context()
-	inv := g.open.inventory
-	gateEvery = 0
-
-	digest := "sha256:" + strings.Repeat("c", 64)
-	reused := func(id, reference string) link.BuildResult {
-		manifest := mustJSON(t, catalogue.Manifest{Module: "app", Version: "c3", Resources: []map[string]any{
-			{"id": "svc", "type": "container", "name": "app", "image": reference}}})
-		return link.BuildResult{ID: id, Repository: "novox/mesh-catalog", Path: "modules/app", Ref: "main", On: "anchor",
-			Commit: "c3", Manifest: manifest, Trunk: "main", OnTrunk: true, Branches: []string{"main"},
-			Made:   []link.MadeArtifact{{Name: "server", Kind: "image", Reference: reference}},
-			Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/mesh-catalog"},
-			Reused: "reused from the check of novox/mesh-catalog#9 at head abcdefabcdef (merged into trunk 123456123456): server " + digest,
-			ReusedFrom: &link.ReusedFrom{Pull: link.PullRef{Owner: "novox", Repo: "mesh-catalog", Number: 9},
-				Head: "abcdefabcdef", Trunk: "123456123456", Key: "r1:" + strings.Repeat("1", 64)}}
-	}
-	if _, _, err := takeIn(ctx, inv, reused(link.NewBuildID(time.Now()), "store.internal:5000/scratch/app/server@"+digest)); err == nil ||
-		!strings.Contains(err.Error(), "scratch") {
-		t.Fatalf("a build in the scratch namespace was registered: %v", err)
-	}
-	id := link.NewBuildID(time.Now().Add(time.Second))
-	result := reused(id, "store.internal:5000/app/server@"+digest)
-	if _, _, err := takeIn(ctx, inv, result); err != nil {
-		t.Fatal(err)
-	}
-	current, err := inv.CurrentBuilds(ctx)
-	if err != nil || current["app"].Commit != "c3" {
-		t.Fatalf("the reused build is not what app is registered at: %+v %v", current["app"], err)
-	}
-	shelf, err := inv.Catalogue(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	raw, _ := json.Marshal(shelf["app"].Resources)
-	if !strings.Contains(string(raw), "app/server@"+digest) {
-		t.Fatalf("app is registered as %s, not by the check's digest in its own namespace", raw)
-	}
-
-	// The walk asked it: the walk keeps what its build did, and its gate judges the registered build.
-	asked := time.Now().UTC()
-	p := g.plan(t)
-	p.Commit = "c3"
-	p.Modules["app"] = &inventory.PlanModule{State: "asked", AskedAt: &asked, Build: id}
-	if err := inv.SavePlan(ctx, &p); err != nil {
-		t.Fatal(err)
-	}
-	planBuiltSaying(ctx, g.open, "app", "c3", "", asked, id, result.MadeWords())
-	p = g.plan(t)
-	if m := p.Modules["app"]; m.State != "built" || !strings.HasPrefix(m.Made, "reused from the check of novox/mesh-catalog#9") {
-		t.Fatalf("the walk keeps %+v", m)
-	}
-	for i := 0; i < 6; i++ {
-		advancePlans(ctx, g.open)
-	}
-	p = g.plan(t)
-	gate := p.Modules["app"].Gate
-	if gate == nil || gate.To != "c3" || gate.Verdict != inventory.GatePassed {
-		t.Fatalf("the gate judged %+v, not the reused build", gate)
-	}
-	if sent, _, _ := inv.SentBuilds(ctx, "anchor"); sent["app"] != "c3" {
-		t.Fatalf("the first machine was sent %v, not the reused build", sent)
-	}
-}

cmd/mesh-controller/check_builds_test.go

@@ -1,193 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"reflect"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/builder"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// One build per change (novox/hq ADR 0350), as the controller asks it and takes it in.
-
-// The check of a change is asked to build what a merge of it would move, in the walk's order: a module of the
-// repository checked from the merge, one standing on it from its own repository as the walk builds it, and one
-// that reads the repository through a context not at all. A change that moves no module builds nothing.
-func TestACheckIsAskedToBuildWhatTheMergeWouldMove(t *testing.T) {
-	entries := []inventory.Entry{
-		{Manifest: catalogue.Manifest{Module: "app"}, Source: inventory.Source{Repository: "novox/shop", Seat: "git", Path: "modules/app"}},
-		{Manifest: catalogue.Manifest{Module: "web"}, Source: inventory.Source{Repository: "novox/web", Seat: "git", Ref: "main"}},
-		{Manifest: catalogue.Manifest{Module: "docs"}, Source: inventory.Source{Repository: "novox/docs", Seat: "git"}},
-	}
-	p := link.PullUpdated{Owner: "novox", Repo: "shop", Number: 7, Base: "main", Commit: "abc"}
-	scope := checkScope{Reach: mergeReach{Packaging: entries[2:], Plan: inventory.Plan{Tiers: [][]string{{"app", "docs"}, {"web"}}}}}
-	clone := func(s inventory.Source) (string, error) { return "http://forge.invalid/" + s.Repository + ".git", nil }
-
-	got := checkBuildsOf(p, scope, entries, clone)
-	want := []link.CheckBuild{
-		{Module: "app", Path: "modules/app", Merged: true, Tier: 0},
-		{Module: "docs", Tier: 0, Skip: "its build reads novox/shop through a context, which a check cannot hand the merge"},
-		{Module: "web", Repository: "http://forge.invalid/novox/web.git", Ref: "main", Tier: 1},
-	}
-	if !reflect.DeepEqual(got, want) {
-		t.Fatalf("the check is asked to build\n%+v\nwant\n%+v", got, want)
-	}
-	if got := checkBuildsOf(p, checkScope{}, entries, clone); got != nil {
-		t.Fatalf("a change that moves no module asks for builds: %+v", got)
-	}
-}
-
-// A walk's ask carries its leave to take a check's build, naming the pull requests of the merges it answers; a dry
-// run never does, and neither does an ask that is not a walk's.
-
-// A walk ended lets go of its merges' check builds — only once it ended, after it took what it reuses.
-func TestAWalkEndedLetsGoOfItsMergesCheckBuilds(t *testing.T) {
-	var forgot []builder.PullRef
-	was := forgetChecks
-	forgetChecks = func(_ context.Context, _ *inventory.Inventory, pull builder.PullRef) (string, error) {
-		forgot = append(forgot, pull)
-		return "", nil
-	}
-	t.Cleanup(func() { forgetChecks = was })
-	p := inventory.Plan{ID: "plan-1", Delivery: &inventory.PlanDelivery{Merges: []inventory.PlanMerge{
-		{Repository: "novox/shop", Number: 7}}}}
-
-	p.WalkSaid = inventory.WalkStarted
-	forgetChecksOfWalk(t.Context(), nil, p)
-	p.WalkSaid = ""
-	forgetChecksOfWalk(t.Context(), nil, p)
-	if len(forgot) != 0 {
-		t.Fatalf("a walk not ended let go of %v, which it may still take", forgot)
-	}
-	p.WalkSaid = inventory.WalkEnded
-	forgetChecksOfWalk(t.Context(), nil, p)
-	if want := []builder.PullRef{{Owner: "novox", Repo: "shop", Number: 7}}; !reflect.DeepEqual(forgot, want) {
-		t.Fatalf("the walk ended let go of %v", forgot)
-	}
-}
-
-// A build in the scratch namespace is never registered: only the walk's copy in the module's own namespace is.
-func TestABuildInTheScratchNamespaceIsNeverRegistered(t *testing.T) {
-	if got := inScratch([]link.MadeArtifact{{Name: "server", Reference: "store.internal:5000/app/server@sha256:aa"}}); got != "" {
-		t.Fatalf("a module's own build reads as a scratch build: %s", got)
-	}
-	scratch := "store.internal:5000/scratch/app/server@sha256:aa"
-	if got := inScratch([]link.MadeArtifact{{Name: "server", Reference: scratch}}); got != scratch {
-		t.Fatalf("a scratch build was not found: %q", got)
-	}
-	if got := inScratch([]link.MadeArtifact{{Name: "look", Reference: "http://store.internal:5000/v2/scratch/app/look/blobs/sha256:bb"}}); got == "" {
-		t.Fatal("a scratch archive was not found")
-	}
-}
-
-// The walk says per module what it did: "reused from …" or "built: <why>" — and a build seat from before says
-// neither, which is said.
-func TestAWalksBuildSaysWhetherItReusedOrBuilt(t *testing.T) {
-	if got := (link.BuildResult{Reused: "reused from the check of novox/shop#7"}).MadeWords(); got != "reused from the check of novox/shop#7" {
-		t.Fatalf("said %q", got)
-	}
-	if got := (link.BuildResult{BuiltWhy: "no check built it"}).MadeWords(); got != "built: no check built it" {
-		t.Fatalf("said %q", got)
-	}
-	if got := (link.BuildResult{}).MadeWords(); !strings.Contains(got, "predates ADR 0350") {
-		t.Fatalf("said %q", got)
-	}
-}
-
-// A walk's module the check's build stood in for is registered by the digest the check built — the copy in the
-// module's namespace — and the walk keeps "reused from …" for it; its first-node gate judges that registered
-// build as it judges one the walk built. A scratch reference is refused. Needs the store (MESH_TEST_POSTGRES), and
-// is named in testdata/store-tests.
-
-// A walk's leave names the builds its own pull requests' verdicts made at the head each merge merged — never an
-// earlier head's — read once per walk, and none when they cannot be read: the builder takes nothing a verdict does
-// not name (novox/hq ADR 0350 §2, issue 703).
-func TestAWalksLeaveNamesTheBuildsItsPullRequestsVerdictsMade(t *testing.T) {
-	was := checkedBuildsOf
-	forgetWalkVerdicts()
-	t.Cleanup(func() { checkedBuildsOf = was; forgetWalkVerdicts() })
-	var asked [][]link.PullRef
-	pull := link.PullRef{Owner: "novox", Repo: "shop", Number: 7}
-	atHead := link.CheckedBuild{Pull: pull, Check: "build-2", Head: "bbbbbbbbbbbb", Built: link.CheckBuilt{Module: "app", Key: "r1:2"}}
-	earlier := link.CheckedBuild{Pull: pull, Check: "build-1", Head: "aaaaaaaaaaaa", Built: link.CheckBuilt{Module: "app", Key: "r1:1"}}
-	checkedBuildsOf = func(_ context.Context, pulls []link.PullRef) ([]link.CheckedBuild, error) {
-		asked = append(asked, pulls)
-		return []link.CheckedBuild{atHead, earlier}, nil
-	}
-	pulls := []link.PullRef{pull}
-	heads := map[link.PullRef]string{pull: "bbbbbbbbbbbb0123456789"}
-	for range 3 {
-		if got := reuseWithVerdicts(t.Context(), "plan-1", &link.ReuseAsk{Pulls: pulls}, heads); !reflect.DeepEqual(got.Builds,
-			[]link.CheckedBuild{atHead}) {
-			t.Fatalf("the leave names %+v, not only the merged head's build", got.Builds)
-		}
-	}
-	if !reflect.DeepEqual(asked, [][]link.PullRef{pulls}) {
-		t.Fatalf("the verdicts were read %d times for one walk: %v", len(asked), asked)
-	}
-	// A merge whose head was not said takes nothing.
-	if got := reuseWithVerdicts(t.Context(), "plan-1", &link.ReuseAsk{Pulls: pulls}, nil); got.Builds != nil {
-		t.Fatalf("a merge of no said head names %+v", got.Builds)
-	}
-	checkedBuildsOf = func(context.Context, []link.PullRef) ([]link.CheckedBuild, error) {
-		return nil, errors.New("no bus")
-	}
-	if got := reuseWithVerdicts(t.Context(), "plan-2", &link.ReuseAsk{Pulls: pulls}, heads); got.Builds != nil {
-		t.Fatalf("verdicts that could not be read named %+v", got.Builds)
-	}
-}
-
-// A check is handed only the builds earlier checks of its own pull request at its own head made: another pull
-// request's build, or an earlier head's, is never kept (novox/hq issue 703). None when they cannot be read.
-func TestACheckIsHandedOnlyItsOwnHeadsBuilds(t *testing.T) {
-	was := checkedBuildsOf
-	t.Cleanup(func() { checkedBuildsOf = was })
-	pull := link.PullRef{Owner: "novox", Repo: "shop", Number: 7}
-	mine := link.CheckedBuild{Pull: pull, Check: "build-1", Head: "bbbbbbbbbbbb", Built: link.CheckBuilt{Module: "app", Key: "r1:1"}}
-	earlier := link.CheckedBuild{Pull: pull, Check: "build-0", Head: "aaaaaaaaaaaa", Built: link.CheckBuilt{Module: "app", Key: "r1:1"}}
-	another := link.CheckedBuild{Pull: link.PullRef{Owner: "novox", Repo: "shop", Number: 8}, Check: "build-9",
-		Head: "bbbbbbbbbbbb", Built: link.CheckBuilt{Module: "app", Key: "r1:1"}}
-	var asked [][]link.PullRef
-	checkedBuildsOf = func(_ context.Context, pulls []link.PullRef) ([]link.CheckedBuild, error) {
-		asked = append(asked, pulls)
-		return []link.CheckedBuild{mine, earlier, another}, nil
-	}
-	p := link.PullUpdated{Owner: "novox", Repo: "shop", Number: 7, Commit: "bbbbbbbbbbbb0123456789"}
-	builds := []link.CheckBuild{{Module: "app"}}
-	if got := namedForTheCheck(t.Context(), p, builds); !reflect.DeepEqual(got, []link.CheckedBuild{mine}) ||
-		!reflect.DeepEqual(asked, [][]link.PullRef{{pull}}) {
-		t.Fatalf("the check is handed %+v, read for %v", got, asked)
-	}
-	checkedBuildsOf = func(context.Context, []link.PullRef) ([]link.CheckedBuild, error) {
-		return nil, errors.New("no bus")
-	}
-	if got := namedForTheCheck(t.Context(), p, builds); got != nil {
-		t.Fatalf("verdicts that could not be read named %+v", got)
-	}
-}
-
-func forgetWalkVerdicts() {
-	walkVerdicts.Lock()
-	defer walkVerdicts.Unlock()
-	walkVerdicts.read = map[string]verdictsRead{}
-}
-
-// A walk's merged heads are the forge's word for each merge; a merge announced without its head, or a pull request
-// merged at two heads in one walk, has none, and its walk takes no check's build (novox/hq issue 703).
-func TestAWalksMergedHeadsAreTheForgesWord(t *testing.T) {
-	merge := func(number int, head string) inventory.PlanMerge {
-		return inventory.PlanMerge{Repository: "novox/shop", Number: number, Head: head}
-	}
-	p := &inventory.Plan{Delivery: &inventory.PlanDelivery{Merges: []inventory.PlanMerge{
-		merge(7, "aaaaaaaaaaaa1"), merge(8, ""), merge(9, "bbbbbbbbbbbb"), merge(9, "cccccccccccc")}}}
-	heads := mergedHeadsOf(p)
-	shop := func(n int) link.PullRef { return link.PullRef{Owner: "novox", Repo: "shop", Number: n} }
-	if heads[shop(7)] != "aaaaaaaaaaaa1" || heads[shop(8)] != "" || heads[shop(9)] != "" {
-		t.Fatalf("merged heads %v", heads)
-	}
-}

cmd/mesh-controller/check_here.go

@@ -1,203 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"flag"
-	"fmt"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strings"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/builder"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// `check-here` is a pull request's merge check run on the machine at hand **exactly as the build seat
-// runs it** (novox/hq issue 286): the same code (builder.Check), the same ask the controller would make of
-// the seat — the gate's modules and judge by the planner's own answer over the facts snapshot, the
-// repositories beside it at the refs the snapshot says the seat clones them at — in the toolchain image
-// the mesh holds, as the user the build seat runs as, against a throwaway store and bus of the versions
-// the mesh runs.
-//
-// **The build seat is the reference.** A merge-check.sh that passed on an agent's machine failed on the
-// seat for three reasons that were each the agent's environment, never the change: a newer Go whose gofmt
-// lays a file out differently, a sibling checkout at the agent's feature branch where the seat had the
-// commit the mesh runs, and a different user. Run here, a check sees what the seat will.
-//
-//	check-here [--tree <checkout>] [--base main] [--registry <artifact store>] [--forge <url of the owner>]
-//	           [--number <n>] [--user uid:gid] [--facts store|<file>] [--keep]
-//
-// The checkout's HEAD is what is checked, and it must be committed: the seat checks a commit, never a
-// working tree.
-func checkHereCommand(ctx context.Context, args []string) error {
-	set := flag.NewFlagSet("check-here", flag.ContinueOnError)
-	tree := set.String("tree", ".", "the change's checkout; its HEAD is checked")
-	base := set.String("base", "main", "the branch the change would merge into")
-	registry := set.String("registry", os.Getenv("MESH_REGISTRY"), "the artifact store holding the facts and the toolchains")
-	forge := set.String("forge", "", "where the repositories beside it are cloned from, as <forge>/<repository>.git; "+
-		"the checkout's origin without its own name when not given")
-	number := set.Int("number", 0, "the pull request's number, when there is one")
-	// The build seat's service runs as root, and its check containers run as the builder does.
-	user := set.String("user", "0:0", "the user the check's containers run as: the build seat's")
-	keep := set.Bool("keep", false, "keep the workspace afterwards")
-	factsFrom := set.String("facts", "store", "the facts snapshot: `store`, the one the artifact store holds — "+
-		"what the seat reads — or a file")
-	if _, err := parseAround(set, args); err != nil {
-		return err
-	}
-	if *registry == "" {
-		return errors.New("check-here reads the facts and the toolchains from the artifact store: --registry <host:port> or MESH_REGISTRY")
-	}
-	dir, err := filepath.Abs(*tree)
-	if err != nil {
-		return err
-	}
-	git := func(args ...string) (string, error) {
-		cmd := exec.CommandContext(ctx, "git", args...)
-		cmd.Dir = dir
-		out, err := cmd.Output()
-		return strings.TrimSpace(string(out)), err
-	}
-	if dirty, err := git("status", "--porcelain", "--untracked-files=no"); err != nil {
-		return fmt.Errorf("%s is not a checkout: %w", dir, err)
-	} else if dirty != "" {
-		return errors.New("the checkout has changes not committed: the build seat checks a commit, so commit first")
-	}
-	head, err := git("rev-parse", "HEAD")
-	if err != nil {
-		return err
-	}
-	origin, err := git("remote", "get-url", "origin")
-	if err != nil {
-		return fmt.Errorf("the checkout has no origin to say which repository it is: %w", err)
-	}
-	owner, repo, prefix := ownerRepoOf(origin)
-	if *forge == "" {
-		*forge = prefix
-	}
-	if _, err := git("fetch", "--quiet", "origin", *base); err != nil {
-		return fmt.Errorf("cannot fetch %s to say what the change touches: %w", *base, err)
-	}
-	// Without rename detection, so a file moved out of a build source is said under its old name as well:
-	// its going is a change to the build that held it (novox/hq ADR 0267).
-	changedText, err := git("diff", "--name-only", "--no-renames", "origin/"+*base+"...HEAD")
-	if err != nil {
-		return err
-	}
-	var paths, removed []string
-	for _, p := range strings.Split(changedText, "\n") {
-		if p = strings.TrimSpace(p); p == "" {
-			continue
-		}
-		paths = append(paths, p)
-		if _, err := os.Stat(filepath.Join(dir, p)); os.IsNotExist(err) {
-			removed = append(removed, p)
-		}
-	}
-
-	_ = os.Setenv("MESH_REGISTRY", *registry)
-	f, err := readFacts(ctx, *factsFrom)
-	if err != nil {
-		return fmt.Errorf("the facts snapshot cannot be read: %w", err)
-	}
-	entries, read, edges, err := graphOfFacts(f)
-	if err != nil {
-		return err
-	}
-	p := link.PullUpdated{Owner: owner, Repo: repo, Number: *number, Base: *base, Commit: head, Paths: paths,
-		Removed: removed, ModuleDirs: moduleDirsIn(dir, paths), ModuleDirsSaid: true}
-	scope := pullScope(p, entries, read, edges)
-	_, scriptErr := os.Stat(filepath.Join(dir, builder.CheckScript))
-	if !scope.gated() && !scope.Mesh {
-		fmt.Printf("%s: %s, and the repository is not the mesh's: the build seat runs nothing for it\n",
-			owner+"/"+repo, noModuleTouched)
-		return nil
-	}
-	if !scope.gated() && scriptErr != nil {
-		fmt.Printf("%s: %s; %s\n", owner+"/"+repo, noModuleTouched, noMergeCheck)
-		return nil
-	}
-
-	toolchains := map[string]string{}
-	for language, reference := range f.Versions.Toolchains {
-		toolchains[language] = catalogue.Rerouted(reference, *registry)
-	}
-	if len(toolchains) == 0 {
-		return errors.New("the facts snapshot names no toolchain: it was taken by a controller from before " +
-			"issue 286, and the seat's toolchain cannot be known here")
-	}
-	beside := map[string]builder.Beside{}
-	for d, ref := range f.Beside {
-		from := d
-		if d == "mesh-controller-main" {
-			from = "mesh-controller"
-		}
-		beside[d] = builder.Beside{Repository: strings.TrimSuffix(*forge, "/") + "/" + from + ".git", Ref: ref}
-	}
-	id := fmt.Sprintf("check-here-%d", time.Now().UnixNano())
-	spec := builder.CheckSpec{ID: id, Repository: dir, Ref: head, Owner: owner, Repo: repo, Number: *number,
-		Paths: paths, Beside: beside, Modules: scope.Modules, New: scope.New, Manifests: scope.Manifests,
-		Base: *base, Judge: scope.Judge, Toolchain: toolchains["go"], Toolchains: toolchains, User: *user}
-
-	workspace, err := os.MkdirTemp("", "mesh-check-here-")
-	if err != nil {
-		return err
-	}
-	if !*keep {
-		defer removeWorkspace(spec.Toolchain, workspace, *user)
-	}
-	fmt.Fprintf(os.Stderr, "checking %s/%s at %.8s as the build seat would, against the facts of %s, in %s\n",
-		owner, repo, head, f.Taken.Format(time.RFC3339), workspace)
-	v, err := builder.Check(ctx, builder.Command, spec, workspace, *registry, builder.GitCredential{},
-		func(step, message string) {
-			if step != "output" {
-				fmt.Fprintf(os.Stderr, "  [%s] %s\n", step, message)
-			}
-		})
-	if err != nil {
-		return fmt.Errorf("the check could not run — on the seat an error, never a pass: %w", err)
-	}
-	fmt.Println(v.Report)
-	fmt.Println()
-	fmt.Printf("mesh/merge-gate: %s — %s\n", strings.ToUpper(v.Gate.Verdict), v.Gate.Summary)
-	if v.Repo != nil {
-		fmt.Printf("mesh/repo-check: %s — %s\n", strings.ToUpper(v.Repo.Verdict), v.Repo.Summary)
-	}
-	for _, l := range []*builder.Layer{v.Gate, v.Repo} {
-		if l != nil && l.Verdict != "pass" && l.Verdict != "warning" {
-			return errors.New("the build seat would not pass this change")
-		}
-	}
-	return nil
-}
-
-// ownerRepoOf reads owner, repository and the owner's URL from a remote: ssh://git@host:222/novox/mesh-host.git
-// → novox, mesh-host, ssh://git@host:222/novox.
-func ownerRepoOf(remote string) (string, string, string) {
-	trimmed := strings.TrimSuffix(strings.TrimSuffix(remote, "/"), ".git")
-	cut := strings.LastIndexAny(trimmed, "/:")
-	if cut < 0 {
-		return "", trimmed, ""
-	}
-	repo, prefix := trimmed[cut+1:], trimmed[:cut]
-	owner := prefix
-	if at := strings.LastIndexAny(prefix, "/:"); at >= 0 {
-		owner = prefix[at+1:]
-	}
-	return owner, repo, prefix
-}
-
-// removeWorkspace removes what the check left, written as the seat's user: by a container of that user
-// when it is not this one.
-func removeWorkspace(image, workspace, user string) {
-	if image != "" && user != fmt.Sprintf("%d:%d", os.Getuid(), os.Getgid()) {
-		// Everything in it — the check's HOME is the workspace, so the toolchain's own files are there too.
-		_ = exec.Command("docker", "run", "--rm", "--user", user, "--volume", workspace+":/workspace", image,
-			"sh", "-c", "rm -rf /workspace/* /workspace/.[!.]*").Run()
-	}
-	_ = os.RemoveAll(workspace)
-}

cmd/mesh-controller/check_siblings.go

@@ -1,165 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"regexp"
-	"sort"
-	"strings"
-
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **A delivery group's member is checked beside the other members' heads** (novox/hq ADR 0382, issue 867).
-//
-// A mesh-host change and a mesh-controller change that need each other could not both pass their own merge checks:
-// each was read beside the other's repository at the commit the mesh runs, which holds neither change. So the
-// controller asks mesh-delivery's `groups` once for every pull request's check it asks (§1), and names, in the ask,
-// the group's other open pull requests into a base of the same name, in a repository the build seat reads beside the
-// check — mesh-lab never — each with its whole head. The build seat reads those repositories at the sibling's merge (§2).
-// A pull request for which mesh-delivery answered and named no sibling is asked exactly as before (§7).
-
-// wholeCommit is a commit as the forge says a head: forty hexadecimal characters.
-var wholeCommit = regexp.MustCompile(`^[0-9a-f]{40}$`)
-
-// besideRepositories are the repositories (lower case, owner/repo) a check reads beside its own, by the directory each
-// is found under — the core's, as besideOf clones them, and mesh-sdk beside the controller; never mesh-lab, which is
-// always read at its trunk.
-func besideRepositories(entries []inventory.Entry) map[string]string {
-	read := map[string]string{}
-	for _, e := range entries {
-		dir, core := coreModules[e.Manifest.Module]
-		if !core || e.Provided || e.Source.Repository == "" {
-			continue
-		}
-		read[nameOf(e.Source.Repository)] = dir
-		if dir == "mesh-controller" && e.Source.Seat != "" {
-			read[nameOf(siblingOf(e.Source.Repository, "mesh-sdk"))] = "mesh-sdk"
-		}
-	}
-	delete(read, "")
-	return read
-}
-
-// nameOf is a recorded repository as owner/repo in lower case, empty when it names no owner.
-func nameOf(repository string) string {
-	owner, repo := sourceOwner(repository), sourceName(repository)
-	if owner == "" || repo == "" {
-		return ""
-	}
-	return strings.ToLower(owner + "/" + repo)
-}
-
-// siblingsFor is the pull request's siblings, as mesh-delivery's groups say them (ADR 0382 §1): the other members of
-// the group its head branch names that are open, unmerged and into a base of its own base's name, in a repository the
-// check reads beside it (beside: the directories the ask already names). The second answer is why they could not be
-// learned, empty when they could: the group's members carry no head or base — a mesh-delivery from before the rule.
-func siblingsFor(p link.PullUpdated, entries []inventory.Entry, beside map[string]link.CheckedOut,
-	lines []groupsLine) ([]link.CheckSibling, string) {
-	own := strings.ToLower(p.Owner + "/" + p.Repo)
-	var group *groupsLine
-	if p.Head == "" {
-		// A recheck (mesh-delivery's `recheck` through `delivery check`) carries no head branch name: the group is the one
-		// whose members hold this very pull request, by repository and number.
-		learnable := false
-		for i := range lines {
-			for _, m := range lines[i].Details {
-				learnable = true
-				if p.Number != 0 && m.Number == p.Number && strings.ToLower(m.Repository) == own {
-					group = &lines[i]
-				}
-			}
-		}
-		if group == nil {
-			for _, l := range lines {
-				if len(l.Details) == 0 && len(l.Members) > 0 && !learnable {
-					return nil, "mesh-delivery named the groups' members without their pull requests (a mesh-delivery from before novox/hq ADR 0382): " +
-						"the group of a pull request announced without its head branch cannot be found"
-				}
-			}
-			return nil, "" // a lone pull request
-		}
-	} else {
-		for i := range lines {
-			if lines[i].ID == p.Head {
-				group = &lines[i]
-			}
-		}
-		if group == nil {
-			return nil, ""
-		}
-	}
-	if len(group.Details) == 0 && len(group.Members) > 0 {
-		return nil, "mesh-delivery named the group's members without their heads and bases (a mesh-delivery from before novox/hq ADR 0382)"
-	}
-	read := besideRepositories(entries)
-	var siblings []link.CheckSibling
-	for _, m := range group.Details {
-		repository := strings.ToLower(m.Repository)
-		if repository == own {
-			continue
-		}
-		if !m.Open {
-			continue
-		}
-		if m.Head == "" || m.Base == "" {
-			return nil, "mesh-delivery named " + m.ID + " without its head or base (a mesh-delivery from before novox/hq ADR 0382)"
-		}
-		dir, readBeside := read[repository]
-		if m.Base != p.Base || !readBeside || dir == "mesh-lab" {
-			continue
-		}
-		if _, there := beside[dir]; !there {
-			continue
-		}
-		head := strings.ToLower(m.Head)
-		if !wholeCommit.MatchString(head) {
-			return nil, fmt.Sprintf("mesh-delivery named %s with a head that is not a whole commit (%q)", m.ID, m.Head)
-		}
-		siblings = append(siblings, link.CheckSibling{Repository: m.Repository, Number: m.Number, Head: head, Base: m.Base, Dir: dir})
-	}
-	sort.Slice(siblings, func(i, j int) bool { return siblings[i].Dir < siblings[j].Dir })
-	return siblings, ""
-}
-
-// withSiblings asks mesh-delivery's `groups` once and says in the request the pull request's siblings, or why they
-// could not be learned (ADR 0382 §1): a check never waits on mesh-delivery past groupAskWithin and never fails for it,
-// so a fix to mesh-delivery is still checked without it.
-func withSiblings(ctx context.Context, request *link.BuildRequest, p link.PullUpdated, entries []inventory.Entry) {
-	lines, err := groupsAsked(ctx, deliverySeatHeld(entries))
-	siblingsFrom(request, p, entries, lines, err)
-}
-
-// siblingsFrom is withSiblings from mesh-delivery's answer already had.
-func siblingsFrom(request *link.BuildRequest, p link.PullUpdated, entries []inventory.Entry, lines []groupsLine, err error) {
-	if request.Check == nil {
-		return
-	}
-	if err != nil {
-		request.Check.SiblingsUnknown = fmt.Sprintf("mesh-delivery did not say the group's pull requests (%v): "+
-			"the check reads no siblings", err)
-		return
-	}
-	request.Check.Siblings, request.Check.SiblingsUnknown = siblingsFor(p, entries, request.Check.Beside, lines)
-}
-
-// composedMember says the pull request is a member of a delivery group whose gate is the composed check's (novox/hq
-// ADR 0403 clauses 1 and 7): the group has two members or more and mesh-delivery says so on its line. The group is
-// found as siblingsFor finds it, by its head branch name, or, for a recheck that carries none, by the pull request's
-// repository and number — not by siblings, which name only what the check reads beside it.
-func composedMember(p link.PullUpdated, lines []groupsLine) bool {
-	own := strings.ToLower(p.Owner + "/" + p.Repo)
-	for _, l := range lines {
-		found := p.Head != "" && l.ID == p.Head
-		for _, m := range l.Details {
-			if p.Head == "" && p.Number != 0 && m.Number == p.Number && strings.ToLower(m.Repository) == own {
-				found = true
-			}
-		}
-		if found {
-			return l.ComposedGate && max(len(l.Details), len(l.Members)) >= 2
-		}
-	}
-	return false
-}

cmd/mesh-controller/check_siblings_test.go

@@ -1,248 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **A delivery group's member is checked beside the other members' heads** (novox/hq ADR 0382 §1, §7, issue 867): the
-// controller asks mesh-delivery's `groups` once for every check it asks, and names in the ask the group's other open
-// pull requests into a base of the same name, in a repository the build seat reads beside it — mesh-lab never.
-
-const (
-	headHost       = "1111111111111111111111111111111111111111"
-	headController = "2222222222222222222222222222222222222222"
-	headSDK        = "3333333333333333333333333333333333333333"
-	headLab        = "4444444444444444444444444444444444444444"
-	headHq         = "5555555555555555555555555555555555555555"
-)
-
-func theCoreOnTheGitSeat() []inventory.Entry {
-	onSeat := func(module, repository string) inventory.Entry {
-		e := fromRepo(module, repository, "")
-		e.Source.Seat = "git"
-		return e
-	}
-	nats := onSeat("nats", "novox/mesh-catalog")
-	nats.Source.Path = "modules/nats"
-	held := catalogue.Manifest{Module: "mesh-delivery", Claims: []catalogue.Claim{{Name: catalogue.DeliverySeat, Scope: catalogue.ScopeMesh}}}
-	return []inventory.Entry{onSeat("mesh-controller", "novox/mesh-controller"), onSeat("mesh-host", "novox/mesh-host"),
-		onSeat("node-tools", "novox/mesh-tools"), nats, {Manifest: held, On: []string{"anchor"}}}
-}
-
-func besideTheCore() map[string]link.CheckedOut {
-	return map[string]link.CheckedOut{"mesh-controller": {Repository: "c"}, "mesh-host": {Repository: "h"},
-		"mesh-tools": {Repository: "t"}, "mesh-catalog": {Repository: "k"}, "mesh-sdk": {Repository: "s"}, "mesh-lab": {Repository: "l"}}
-}
-
-func member(repository string, number int, head, base string, open bool) memberLine {
-	return memberLine{ID: repository + "@" + head[:12], Repository: repository, State: "checked", Number: number, Head: head,
-		Base: base, Open: open}
-}
-
-func group(id string, members ...memberLine) groupsLine {
-	line := groupsLine{ID: id, Details: members}
-	for _, m := range members {
-		line.Members = append(line.Members, m.ID+" ("+m.State+")")
-	}
-	return line
-}
-
-func TestASiblingIsTheGroupsOtherOpenPullRequestIntoABaseOfTheSameName(t *testing.T) {
-	entries := theCoreOnTheGitSeat()
-	pull := link.PullUpdated{Owner: "novox", Repo: "mesh-host", Number: 114, Base: "main", Head: "feat/x", Commit: headHost}
-	for _, c := range []struct {
-		what    string
-		lines   []groupsLine
-		want    []string
-		unknown string
-	}{
-		{"the other member, open, same base", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-controller", 346, headController, "main", true))},
-			[]string{"mesh-controller=novox/mesh-controller#346@" + headController + " onto main"}, ""},
-		{"a member into a base of another name is not one", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-controller", 346, headController, "release", true))},
-			nil, ""},
-		{"a member not open (merged or closed) is not one", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-controller", 346, headController, "main", false))},
-			nil, ""},
-		{"mesh-lab is never one", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-lab", 5, headLab, "main", true))},
-			nil, ""},
-		{"a repository the check reads nothing of is not one", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/hq", 9, headHq, "main", true))},
-			nil, ""},
-		{"mesh-sdk, read beside the controller, is one", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-sdk", 7, headSDK, "main", true))},
-			[]string{"mesh-sdk=novox/mesh-sdk#7@" + headSDK + " onto main"}, ""},
-		{"another group is none of its business", []groupsLine{group("feat/y",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-controller", 346, headController, "main", true))},
-			nil, ""},
-		{"a group of its own alone has none", []groupsLine{group("feat/x", member("novox/mesh-host", 114, headHost, "main", true))},
-			nil, ""},
-		{"an older mesh-delivery names no heads", []groupsLine{{ID: "feat/x",
-			Members: []string{"novox/mesh-host@111111111111 (checked)", "novox/mesh-controller@222222222222 (checked)"}}},
-			nil, "without their heads and bases"},
-		{"a member without its base", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-controller", 346, headController, "", true))},
-			nil, "without its head or base"},
-		{"a head that is no commit", []groupsLine{group("feat/x",
-			member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-controller", 346, headController[:12]+"zzzzzzzzzzzzzzzzzzzzzzzzzzzz", "main", true))},
-			nil, "not a whole commit"},
-	} {
-		got, unknown := siblingsFor(pull, entries, besideTheCore(), c.lines)
-		var said []string
-		for _, s := range got {
-			said = append(said, s.Dir+"="+s.Repository+"#"+itoa(s.Number)+"@"+s.Head+" onto "+s.Base)
-		}
-		if strings.Join(said, ";") != strings.Join(c.want, ";") {
-			t.Errorf("%s: siblings %v, wanted %v", c.what, said, c.want)
-		}
-		if (c.unknown == "") != (unknown == "") || !strings.Contains(unknown, c.unknown) {
-			t.Errorf("%s: could not learn %q, wanted %q", c.what, unknown, c.unknown)
-		}
-	}
-	// A pull request into a release branch has siblings into the release branch of the same name (ADR 0358 §1).
-	release := pull
-	release.Base = "feat/57"
-	lines := []groupsLine{group("feat/x", member("novox/mesh-host", 114, headHost, "feat/57", true),
-		member("novox/mesh-controller", 346, headController, "feat/57", true), member("novox/mesh-tools", 8, headLab, "main", true))}
-	if got, _ := siblingsFor(release, entries, besideTheCore(), lines); len(got) != 1 || got[0].Dir != "mesh-controller" {
-		t.Errorf("into a release branch: %+v", got)
-	}
-	// A recheck announces the pull request without its head branch: its group is the one holding it (repository, number).
-	pull.Head = ""
-	got, unknown := siblingsFor(pull, entries, besideTheCore(), lines)
-	if len(got) != 1 || got[0].Dir != "mesh-tools" || unknown != "" {
-		t.Errorf("a recheck of a group member: %+v %q", got, unknown)
-	}
-	// A pull request in no group, rechecked, is alone: no sibling, and nothing said.
-	pull.Number = 999
-	if got, unknown := siblingsFor(pull, entries, besideTheCore(), lines); got != nil || unknown != "" {
-		t.Errorf("a lone pull request: %+v %q", got, unknown)
-	}
-	if got, unknown := siblingsFor(pull, entries, besideTheCore(), nil); got != nil || unknown != "" {
-		t.Errorf("no groups at all: %+v %q", got, unknown)
-	}
-	// A mesh-delivery that names members without their pull requests cannot find the group of a recheck: it says so.
-	older := []groupsLine{{ID: "feat/x", Members: []string{"novox/mesh-host@111111111111 (checked)"}}}
-	pull.Number = 114
-	if got, unknown := siblingsFor(pull, entries, besideTheCore(), older); got != nil || unknown == "" {
-		t.Errorf("an older mesh-delivery: %+v %q", got, unknown)
-	}
-}
-
-func itoa(n int) string { b, _ := json.Marshal(n); return string(b) }
-
-// Every check asks mesh-delivery's `groups` once; the ask names the sibling's repository, head and base.
-func TestEveryCheckAsksMeshDeliveryOnceAndNamesItsSiblings(t *testing.T) {
-	entries := theCoreOnTheGitSeat()
-	asked := 0
-	was := groupsAsked
-	t.Cleanup(func() { groupsAsked = was })
-	groupsAsked = func(_ context.Context, held bool) ([]groupsLine, error) {
-		asked++
-		if !held {
-			t.Error("the seat is held, yet it was asked as not held")
-		}
-		return []groupsLine{group("feat/x", member("novox/mesh-host", 114, headHost, "main", true),
-			member("novox/mesh-controller", 346, headController, "main", true))}, nil
-	}
-	request := link.BuildRequest{Check: &link.CheckRequest{Owner: "novox", Repo: "mesh-host", Base: "main", Beside: besideTheCore()}}
-	withSiblings(t.Context(), &request, link.PullUpdated{Owner: "novox", Repo: "mesh-host", Base: "main", Head: "feat/x"}, entries)
-	if asked != 1 {
-		t.Fatalf("mesh-delivery was asked %d times for one check", asked)
-	}
-	want := link.CheckSibling{Repository: "novox/mesh-controller", Number: 346, Head: headController, Base: "main", Dir: "mesh-controller"}
-	if got := request.Check.Siblings; len(got) != 1 || got[0] != want || request.Check.SiblingsUnknown != "" {
-		t.Fatalf("the ask names siblings %+v, unknown %q", got, request.Check.SiblingsUnknown)
-	}
-	body, _ := json.Marshal(request.Check)
-	if !strings.Contains(string(body), `"siblings":[{"repository":"novox/mesh-controller","number":346,"head":"`+headController+
-		`","base":"main","dir":"mesh-controller"}]`) {
-		t.Fatalf("on the wire: %s", body)
-	}
-}
-
-// When mesh-delivery does not answer in time (or is not held, or answered without the fields), the check reads no
-// sibling and its request says it could not learn them, so a fix to mesh-delivery is still checked without it.
-func TestWhenMeshDeliveryDoesNotAnswerTheCheckReadsNoSiblingAndSaysSo(t *testing.T) {
-	was := groupsAsked
-	t.Cleanup(func() { groupsAsked = was })
-	for _, c := range []struct {
-		what string
-		err  error
-		held bool
-	}{{"it did not answer", context.DeadlineExceeded, true}, {"nothing serves it", errors.New("nothing serves mesh-delivery.groups"), true},
-		{"no holder on record", errors.New("no holder of mesh-delivery is on record to say it"), false}} {
-		entries := theCoreOnTheGitSeat()
-		if !c.held {
-			entries = entries[:4]
-		}
-		groupsAsked = func(_ context.Context, held bool) ([]groupsLine, error) {
-			if held != c.held {
-				t.Errorf("%s: held %v", c.what, held)
-			}
-			return nil, c.err
-		}
-		request := link.BuildRequest{Check: &link.CheckRequest{Owner: "novox", Repo: "mesh-host", Base: "main", Beside: besideTheCore()}}
-		withSiblings(t.Context(), &request, link.PullUpdated{Owner: "novox", Repo: "mesh-host", Base: "main", Head: "feat/x"}, entries)
-		if len(request.Check.Siblings) != 0 || !strings.Contains(request.Check.SiblingsUnknown, c.err.Error()) ||
-			!strings.Contains(request.Check.SiblingsUnknown, "reads no siblings") {
-			t.Errorf("%s: siblings %+v, unknown %q", c.what, request.Check.Siblings, request.Check.SiblingsUnknown)
-		}
-	}
-}
-
-// **A pull request for which mesh-delivery answered and named no sibling is asked exactly as before** (ADR 0382 §7):
-// byte for byte the request it was without the rule.
-func TestAPullRequestWithNoSiblingIsAskedByteForByteAsBefore(t *testing.T) {
-	entries := theCoreOnTheGitSeat()
-	was := groupsAsked
-	t.Cleanup(func() { groupsAsked = was })
-	for _, answer := range [][]groupsLine{nil, {group("feat/other", member("novox/mesh-controller", 346, headController, "main", true))},
-		{group("feat/x", member("novox/mesh-host", 114, headHost, "main", true), member("novox/hq", 3, headHq, "main", true))}} {
-		groupsAsked = func(context.Context, bool) ([]groupsLine, error) { return answer, nil }
-		build := func() link.BuildRequest {
-			return link.BuildRequest{ID: "build-1", Repository: "r", Ref: headHost, Check: &link.CheckRequest{Owner: "novox",
-				Repo: "mesh-host", Number: 114, Base: "main", Beside: besideTheCore(), Modules: []string{"mesh-host"}, Judge: "validator"}}
-		}
-		before, _ := json.Marshal(build())
-		after := build()
-		withSiblings(t.Context(), &after, link.PullUpdated{Owner: "novox", Repo: "mesh-host", Base: "main", Head: "feat/x"}, entries)
-		got, _ := json.Marshal(after)
-		if string(before) != string(got) {
-			t.Fatalf("the request changed:\nbefore %s\nafter  %s", before, got)
-		}
-	}
-}
-
-// What the build seat's verdict says of its siblings reaches the forge's holder in the controller's `checked`.
-func TestTheVerdictCarriesTheSiblingsAndWhereTheJudgeCameFrom(t *testing.T) {
-	read := []link.CheckSibling{{Repository: "novox/mesh-controller", Number: 346, Head: headController, Base: "main", BaseCommit: headHost}}
-	c := checkedOf(link.BuildResult{ID: "b", Ref: headHost, Checked: &link.CheckRequest{Owner: "novox", Repo: "mesh-host", Number: 114},
-		Check: &link.CheckOutcome{Verdict: "pass", Summary: "ok", Siblings: read, JudgeFrom: "sibling novox/mesh-controller#346 merge abc",
-			Validator: "the change's own validator"}})
-	if len(c.Siblings) != 1 || c.Siblings[0] != read[0] || c.JudgeFrom == "" || c.Validator == "" {
-		t.Fatalf("the verdict says %+v", c)
-	}
-	body, _ := json.Marshal(c)
-	for _, want := range []string{`"siblings":[{"repository":"novox/mesh-controller","number":346,"head":"` + headController +
-		`","base":"main","base_commit":"` + headHost + `"}]`, `"judge_from":"sibling novox/mesh-controller#346 merge abc"`} {
-		if !strings.Contains(string(body), want) {
-			t.Fatalf("the verdict lacks %s:\n%s", want, body)
-		}
-	}
-	unknown := checkedOf(link.BuildResult{ID: "b", Check: &link.CheckOutcome{Verdict: "pass", SiblingsUnknown: "mesh-delivery did not answer"}})
-	if body, _ := json.Marshal(unknown); !strings.Contains(string(body), `"siblings_unknown":"mesh-delivery did not answer"`) ||
-		strings.Contains(string(body), `"siblings":`) {
-		t.Fatalf("the verdict that could not learn them says %s", body)
-	}
-}

cmd/mesh-controller/check_test.go

@@ -6,10 +6,8 @@ import (
 	"path/filepath"
 	"strings"
 
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/beside"
 	"github.com/novox/mesh-controller/internal/catalogue"
+	"testing"
 )
 
 // The check anybody can run is the check registration runs (novox/hq issue 148, ADR 0037): a manifest
@@ -58,7 +56,10 @@ func TestModuleCheckJudgesBetweenTheManifestsGiven(t *testing.T) {
 
 // The real catalogue passes the command, the way it passes the test that used to be the only check.
 func TestModuleCheckPassesTheCatalogue(t *testing.T) {
-	root := beside.Catalogue(t)
+	root := filepath.Join("..", "..", "..", "mesh-catalog", "modules")
+	if _, err := os.Stat(root); err != nil {
+		t.Skipf("catalogue sibling not present: %v", err)
+	}
 	paths, err := manifestsUnder(root)
 	if err != nil || len(paths) == 0 {
 		t.Fatalf("no manifests under %s: %v", root, err)
@@ -91,71 +92,3 @@ func TestRegistrationRefusesADefinitionNamingAnInstallation(t *testing.T) {
 		t.Fatalf("a name declared on purpose passes; got %v", err)
 	}
 }
-
-// **The controller's own manifest names every verb of its seat** (novox/hq ADR 0132): its tools lagged
-// the seat's verbs for weeks, and `module check` — the gate's first step for a change touching it —
-// refused it. Held here, so a verb added to the table without the manifest fails this repository's
-// own suite rather than its next pull request's gate.
-func TestTheControllersManifestServesEveryVerbOfItsSeat(t *testing.T) {
-	var out strings.Builder
-	if err := moduleCheck([]string{"../../module.json"}, &out); err != nil {
-		t.Fatalf("the controller's own module.json fails module check: %v\n%s", err, out.String())
-	}
-}
-
-// A module that uses a seat another module declares (novox/hq issue 364): refused over the whole catalogue when the
-// declarer is missing, a note when the gate says it gives only the manifests a change touches.
-func TestASeatAnotherModuleDeclaresIsANoteOverSomeManifests(t *testing.T) {
-	dir := t.TempDir()
-	user := filepath.Join(dir, "user.json")
-	os.WriteFile(user, []byte(`{"module":"asker","version":"1","uses":["operator-channel"]}`), 0o600)
-	var out bytes.Buffer
-	if err := moduleCheck([]string{user}, &out); err == nil {
-		t.Fatalf("a use of a seat nothing given declares passed the whole-catalogue check:\n%s", out.String())
-	}
-	t.Setenv(SomeManifestsVar, "1")
-	out.Reset()
-	if err := moduleCheck([]string{user}, &out); err != nil {
-		t.Fatalf("over some manifests the use was refused:\n%s", out.String())
-	}
-	if !strings.Contains(out.String(), "note: asker uses the seat \"operator-channel\"") {
-		t.Fatalf("the note was not said:\n%s", out.String())
-	}
-}
-
-// **A module lives whole in one repository** (novox/hq ADR 0420 §1, issue 1019): `module check`, told the
-// repository it runs for, refuses an artifact whose build context names another; run by hand, it does not know.
-func TestModuleCheckRefusesAnArtifactContextNamingAnotherRepository(t *testing.T) {
-	dir := t.TempDir()
-	write := func(name, context string) string {
-		path := filepath.Join(dir, name+".json")
-		raw := `{"module":"` + name + `","version":"1","build":{"artifacts":[{"name":"server","kind":"image","from":"Dockerfile"` + context + `}]}}`
-		if err := os.WriteFile(path, []byte(raw), 0o600); err != nil {
-			t.Fatal(err)
-		}
-		return path
-	}
-	other := write("other", `,"context":{"seat":"git","repository":"novox/mesh-controller","ref":"main"}`)
-	own := write("own", `,"context":{"seat":"git","repository":"novox/mesh-catalog","ref":"main"}`)
-	none := write("none", ``)
-
-	t.Setenv("MESH_CHECK_REPOSITORY", "novox/mesh-catalog")
-	var out bytes.Buffer
-	if err := moduleCheck([]string{other}, &out); err == nil {
-		t.Fatalf("a context naming another repository passed:\n%s", out.String())
-	}
-	if !strings.Contains(out.String(), "other builds artifact server from novox/mesh-controller: a module lives whole in one repository (novox/hq ADR 0420 §1)") {
-		t.Errorf("the refusal is not in the words of the gate:\n%s", out.String())
-	}
-	for _, path := range []string{own, none} {
-		out.Reset()
-		if err := moduleCheck([]string{path}, &out); err != nil {
-			t.Errorf("%s was refused: %v\n%s", path, err, out.String())
-		}
-	}
-	t.Setenv("MESH_CHECK_REPOSITORY", "")
-	out.Reset()
-	if err := moduleCheck([]string{other}, &out); err != nil {
-		t.Errorf("a local run, with no repository named, refused it: %v\n%s", err, out.String())
-	}
-}

cmd/mesh-controller/checks.go

@@ -1,663 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"path"
-	"regexp"
-	"runtime/debug"
-	"slices"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// A pull request's merge check (novox/hq to-be 45 §9, ADR 0237 as amended 2026-10-06): the forge
-// announces every pull request's new head, the controller decides what is checked, asks the build seat to
-// check it, and says the verdict as `checked`, which the forge's holder sets as the pull request's
-// statuses. **Before merge, never after**: every check the mesh had ran after a merge, on a machine.
-//
-// **The mesh's module graph decides, not the repository.** The controller holds the graph — every module,
-// the repository and directory it is built from — and maps the pull request's changed paths onto it by
-// the planner's own answer (reachOfMerge, touchedBy — the one place a changed file is mapped onto modules,
-// for the merge handler, the release planner, the merge gate and this check; issue 280): **a changed file
-// touches exactly the modules whose build reads it** — a module's own directory (the whole repository for
-// one built from its root), or a repository its recipe packages. A file no build reads — a script at the
-// root, a README — touches no module. A directory the change adds a module.json in, which the graph does
-// not hold yet (said by the head, issue 278), is a new module and is checked too.
-//
-//   - touches a module: the build seat runs **the gate** — `mesh/merge-gate`, the touched manifests, every
-//     machine composed with the change, the replays — and the repository's own merge-check.sh beside it;
-//   - touches none, in a repository that is the mesh's (it sources a module on some branch, or shares the
-//     core's owner): the gate is a pass that says so — a fact, not a missing check — and the repository's
-//     own merge-check.sh runs as `mesh/repo-check`, a warning when it has none;
-//   - touches none, anywhere else: the gate is a pass that says so, and nothing more is said.
-//
-// What is checked is decided here and run there (internal/builder/check.go).
-
-// checkTimeout is how long one check may run on the build seat. Said here so the ask's watchdog (S6)
-// and the builder agree on what late means.
-const checkTimeout = 45 * time.Minute
-
-// noModuleTouched is the gate's word for a change that touches nothing of the graph.
-const noModuleTouched = "the change touches no module of the mesh's graph"
-
-// noMergeCheck is the repository layer's word for a repository of the mesh with no merge-check.sh.
-const noMergeCheck = "the repository declares no merge-check.sh: none of its own tests run before it merges"
-
-// coreModules are the modules whose repositories are the mesh's core, by the directory a check finds
-// each beside it — and whose owner is the mesh's own.
-var coreModules = map[string]string{"mesh-controller": "mesh-controller", "mesh-host": "mesh-host",
-	"node-tools": "mesh-tools", "nats": "mesh-catalog"}
-
-// checkScope is what a pull request reaches of the mesh's graph, as the planner reckons it.
-type checkScope struct {
-	// Modules are the modules a merge of the change would move itself — built from the repository into
-	// the pull request's base and reading a changed file, or packaging the repository's source — and
-	// Dependents those the plan would build after them; New the directories it adds a module in.
-	Modules    []string
-	Dependents []string
-	New        []string
-	// Manifests are the moved modules' and the new ones' manifests in the change's tree.
-	Manifests []string
-	// Width is how many modules a merge would build, in how many tiers; Unread the changed files no
-	// module's build reads.
-	Width, Tiers int
-	Unread       []string
-	// Mesh says the repository is the mesh's: modules are built from it on some branch, its owner is the
-	// core's, or the change adds a module to it.
-	Mesh bool
-	// Judge is who judges the gate (link.JudgeSelf, link.JudgeValidator, or the running controller).
-	Judge string
-	// From is a module built from the repository, for how the mesh clones it; nil when none is.
-	From *inventory.Entry
-	// Reach is the planner's whole answer, which the change plan is made from.
-	Reach mergeReach
-}
-
-func (s checkScope) gated() bool { return len(s.Modules)+len(s.New) > 0 }
-
-// pullScope is what a pull request reaches: **the planner's own answer** (reachOfMerge), asked as if the
-// head were merged into the base — never a mapping of its own, so a change to what a merge touches
-// changes what is checked with it (novox/hq ADR 0238).
-func pullScope(p link.PullUpdated, entries []inventory.Entry, read map[string][]inventory.ReadRepository,
-	edges []inventory.Edge) checkScope {
-	m := link.SourceMoved{Owner: p.Owner, Repo: p.Repo, Base: p.Base, CloneURL: p.CloneURL, Commit: p.Commit,
-		Paths: p.Paths, PathsTruncated: p.PathsTruncated, Removed: p.Removed, ModuleDirs: p.ModuleDirs,
-		ModuleDirsSaid: p.ModuleDirsSaid}
-	r := reachOfMerge(m, entries, read, edges)
-	s := checkScope{Modules: r.Moved(), Dependents: r.Dependents(), New: r.Added, Unread: r.Unread,
-		Width: len(r.Plan.Modules), Tiers: len(r.Plan.Tiers), Reach: r}
-	for _, e := range append(append([]inventory.Entry{}, r.Touched...), r.Deleted...) {
-		s.Manifests = append(s.Manifests, path.Join(strings.Trim(e.Source.Path, "/"), moduleManifestFile))
-		switch e.Manifest.Module {
-		case "mesh-controller":
-			s.Judge = link.JudgeSelf
-		case "mesh-host":
-			if s.Judge == "" {
-				s.Judge = link.JudgeValidator
-			}
-		}
-	}
-	for _, d := range r.Added {
-		s.Manifests = append(s.Manifests, path.Join(d, moduleManifestFile))
-	}
-	sort.Strings(s.Manifests)
-	s.Manifests = slices.Compact(s.Manifests)
-
-	// Whose repository it is, for how it is cloned and whether its own check is the mesh's to run.
-	owners := map[string]bool{}
-	for i, e := range entries {
-		if e.Provided {
-			continue
-		}
-		if _, core := coreModules[e.Manifest.Module]; core {
-			if owner := sourceOwner(e.Source.Repository); owner != "" {
-				owners[owner] = true
-			}
-		}
-		if sameRepository(e.Source.Repository, m) && s.From == nil {
-			s.From = &entries[i]
-		}
-	}
-	s.Mesh = s.From != nil || owners[strings.ToLower(p.Owner)] || s.gated()
-	return s
-}
-
-// sourceOwner is the owner of a recorded repository, a path on the git seat or a URL: novox/mesh-host → novox.
-func sourceOwner(repository string) string {
-	parts := strings.Split(strings.Trim(strings.TrimSuffix(repository, ".git"), "/"), "/")
-	if len(parts) < 2 {
-		return ""
-	}
-	return strings.ToLower(parts[len(parts)-2])
-}
-
-// PullUpdated decides a pull request's merge check, and asks for it when there is something to run.
-func (f following) PullUpdated(ctx context.Context, p link.PullUpdated) error {
-	inv := f.open.inventory
-	entries, err := inv.Catalogued(ctx)
-	if err != nil {
-		return err
-	}
-	read, err := readForPlanning(ctx, inv)
-	if err != nil {
-		return err
-	}
-	edges, err := inv.Dependencies(ctx)
-	if err != nil {
-		return err
-	}
-	scope := pullScope(p, entries, read, edges)
-	// **A cycle of edges fails the check, naming every module and edge** (novox/hq ADR 0419 clause 6), a lone pull
-	// request's as a group's composed check is: no order exists for what it changes.
-	alone := orderMember{ID: p.Owner + "/" + p.Repo + "@" + twelve(p.Commit), Repository: p.Owner + "/" + p.Repo, Base: p.Base,
-		Head: p.Commit, Number: p.Number, Paths: p.Paths, PathsTruncated: p.PathsTruncated, Removed: p.Removed, BaseSHA: p.BaseSHA}
-	if failing, cyclic, err := cycleVerdict(ctx, "", []orderMember{alone},
-		map[string]orderReach{alone.ID: {Moved: scope.Modules}}, edges, entries); err != nil {
-		return err
-	} else if cyclic {
-		failing.Commit, failing.Trunk = p.Commit, twelve(p.BaseSHA)
-		fmt.Printf("%s/%s#%d (%.8s): %s\n", p.Owner, p.Repo, p.Number, p.Commit, failing.Summary)
-		sayChecked(ctx, failing)
-		return nil
-	}
-	// **A member of a group whose gate is the composed check's runs its repository's check alone** (novox/hq ADR 0403
-	// clause 1): mesh-delivery is asked once, and says so on the group's line. Told nothing, the pull request is
-	// checked alone, gate included (clause 6).
-	lines, groupsErr := groupsAsked(ctx, deliverySeatHeld(entries))
-	composed := groupsErr == nil && composedMember(p, lines)
-	// The change plan of the commit at hand (ADR 0238): what a merge of it would build and send, posted
-	// with the verdict whatever the verdict is.
-	plan := changePlanOf(p.Owner+"/"+p.Repo, p.Base, p.Commit, scope.Reach, entries, func(module string) (inventory.Upgrade, bool) {
-		u, err := inv.UpgradeOf(ctx, module)
-		return u, err == nil
-	})
-	fmt.Print(planText(plan))
-	direct := directVerdict(p, plan)
-	if composed {
-		scope.Modules, scope.Dependents, scope.New, scope.Manifests = nil, nil, nil, nil
-		composedGate(&direct)
-	}
-	switch {
-	case !scope.gated() && !scope.Mesh:
-		fmt.Printf("%s/%s#%d (%.8s): %s, and the repository is not the mesh's: said, nothing run\n",
-			p.Owner, p.Repo, p.Number, p.Commit, noModuleTouched)
-		sayChecked(ctx, direct)
-		return nil
-	case !scope.gated() && p.MergeCheckSaid && !p.MergeCheck:
-		direct.RepoCheck = &link.CheckLayer{Verdict: "warning", Summary: noMergeCheck}
-		fmt.Printf("%s/%s#%d (%.8s): %s; %s\n", p.Owner, p.Repo, p.Number, p.Commit, noModuleTouched, noMergeCheck)
-		sayChecked(ctx, direct)
-		return nil
-	}
-	request, err := checkRequestFor(ctx, f.open, p, scope, entries)
-	if err != nil {
-		return err
-	}
-	request.Check.Plan = &plan
-	request.Check.Composed = composed
-	// **The group's other open pull requests are read beside it** (novox/hq ADR 0382 §1).
-	siblingsFrom(&request, p, entries, lines, groupsErr)
-	seat := buildSeatHeld(ctx)
-	ask, err := askOverOn(seat)
-	if err != nil {
-		return err
-	}
-	defer ask.Close()
-	if err := ask.Ask(ctx, request); err != nil {
-		return err
-	}
-	// **A newer request replaces the one still waiting, and a newer key stops the one running** (novox/hq ADR 0406 §3, §4,
-	// issue 974): the check queue keeps one request a pull request, and a running check watches its key. Nothing is asked
-	// of the forge here (issue 726).
-	what := "its own merge-check.sh alone: " + noModuleTouched
-	if composed {
-		what = "its own merge-check.sh alone: the gate is its group's composed check's"
-	}
-	if scope.gated() {
-		what = fmt.Sprintf("the gate over %s (a merge would build %d module(s) in %d tier(s))",
-			strings.Join(append(append([]string{}, scope.Modules...), prefixedAll("new:", scope.New)...), ", "),
-			scope.Width, scope.Tiers)
-	}
-	fmt.Printf("%s/%s#%d (%.8s): asked %s to check it before it merges — %s — as %s\n", p.Owner, p.Repo, p.Number,
-		p.Commit, seat, what, request.ID)
-	return nil
-}
-
-// composedWords is what a group member's own verdict says of its gate layer (novox/hq ADR 0403 clause 1).
-const composedWords = "judged by its group's composed check"
-
-// gateComposed is a gate layer's verdict when no gate was run for the member alone: never a pass. Mesh-delivery reads it
-// as the composed check's to judge, and the forge's holder sets no mesh/merge-gate from it.
-const gateComposed = "composed"
-
-// composedGate says a group member's own verdict has no gate of its own: its gate layer, and the verdict that is
-// the gate's, read "composed" in place of a pass.
-func composedGate(c *link.Checked) {
-	c.Verdict, c.Summary = gateComposed, composedWords
-	c.Gate = &link.CheckLayer{Verdict: gateComposed, Summary: composedWords}
-}
-
-// directVerdict is the verdict of a change no build judges — it touches no module, and either the repository is not
-// the mesh's or the head holds no merge-check.sh. **It names the trunk commit it holds for** (novox/hq ADR 0323 §3):
-// the base branch's head the forge announced with the head, so the merge tool can weigh it against the trunk's head
-// and does not refuse it for ever (a verdict naming no trunk is never the trunk's head's). Nothing was built to
-// judge: the trunk commit is the one the forge said the change was announced against.
-func directVerdict(p link.PullUpdated, plan link.ChangePlan) link.Checked {
-	trunk := p.BaseSHA
-	if len(trunk) > 12 {
-		trunk = trunk[:12]
-	}
-	if trunk != "" {
-		plan.Trunk = trunk
-	}
-	return link.Checked{Owner: p.Owner, Repo: p.Repo, Number: p.Number, Commit: p.Commit,
-		ID: link.NewBuildID(time.Now()), Verdict: "pass", Summary: noModuleTouched,
-		Gate: &link.CheckLayer{Verdict: "pass", Summary: noModuleTouched}, Plan: &plan, Trunk: trunk}
-}
-
-// checkRequestFor is the ask for one pull request's head: the repository as the mesh clones it, the head,
-// and what is read beside it.
-func checkRequestFor(ctx context.Context, open *stores, p link.PullUpdated, scope checkScope,
-	entries []inventory.Entry) (link.BuildRequest, error) {
-	shelf := map[string]catalogue.Manifest{}
-	for _, e := range entries {
-		shelf[e.Manifest.Module] = e.Manifest
-	}
-	world, err := theRestOfTheMesh(ctx, open.inventory, shelf, "")
-	if err != nil {
-		return link.BuildRequest{}, err
-	}
-	clone := func(s inventory.Source) (string, error) {
-		if s.Seat == "" {
-			return s.Repository, nil
-		}
-		return clonedFromSeat(world, s.Seat, s.Repository)
-	}
-	// As the mesh clones a module built from it; a repository no module is built from, from the forge.
-	source := inventory.Source{Seat: gitSeat, Repository: p.Owner + "/" + p.Repo}
-	if scope.From != nil {
-		source = scope.From.Source
-	}
-	repository, err := clone(source)
-	if err != nil {
-		return link.BuildRequest{}, err
-	}
-	current, err := open.inventory.CurrentBuilds(ctx)
-	if err != nil {
-		return link.BuildRequest{}, err
-	}
-	beside, err := besideOf(entries, func(module string) string { return current[module].Commit }, clone)
-	if err != nil {
-		return link.BuildRequest{}, err
-	}
-	builds := checkBuildsOf(p, scope, entries, clone)
-	return link.BuildRequest{
-		ID:         link.NewBuildID(time.Now()),
-		Repository: repository,
-		Ref:        p.Commit,
-		Held:       heldBy(ctx),
-		Seats:      seatBases(ctx),
-		Source:     sourceOnSeat(source),
-		Check: &link.CheckRequest{Owner: p.Owner, Repo: p.Repo, Number: p.Number, Base: p.Base, Trunk: p.BaseSHA, Ready: p.Ready,
-			Paths: p.Paths, Beside: beside, Modules: scope.Modules, Dependents: scope.Dependents, New: scope.New,
-			Manifests: scope.Manifests, Judge: scope.Judge, Builds: builds, Named: namedForTheCheck(ctx, p, builds),
-			Running: runningBy(ctx)},
-	}, nil
-}
-
-// besideOf is what a check reads beside its own repository, by the directory it is found under: each core repository
-// by the module the mesh builds from it, at besideRefs. running is the commit the mesh runs of a module.
-func besideOf(entries []inventory.Entry, running func(module string) string,
-	clone func(inventory.Source) (string, error)) (map[string]link.CheckedOut, error) {
-	beside := map[string]link.CheckedOut{}
-	for _, e := range entries {
-		dir, core := coreModules[e.Manifest.Module]
-		if !core || e.Provided || e.Source.Repository == "" {
-			continue
-		}
-		url, err := clone(e.Source)
-		if err != nil {
-			return nil, err
-		}
-		refs := besideRefs(dir, running(e.Manifest.Module))
-		beside[dir] = link.CheckedOut{Repository: url, Ref: refs[dir]}
-		if dir == "mesh-controller" {
-			// The controller's main stays its main: it judges only a check the running controller predates.
-			beside["mesh-controller-main"] = link.CheckedOut{Repository: url, Ref: refs["mesh-controller-main"]}
-			if e.Source.Seat != "" {
-				for _, sibling := range []string{"mesh-lab", "mesh-sdk"} {
-					if url, err := clone(inventory.Source{Seat: e.Source.Seat, Repository: siblingOf(e.Source.Repository,
-						sibling)}); err == nil {
-						beside[sibling] = link.CheckedOut{Repository: url, Ref: refs[sibling]}
-					}
-				}
-			}
-		}
-	}
-	return beside, nil
-}
-
-// trunkOf is the branch a module's source follows: main when it records none, or records a commit.
-func trunkOf(s inventory.Source) string {
-	if t := strings.TrimSpace(followedBranch(s.Ref)); t != "" {
-		return t
-	}
-	return "main"
-}
-
-// sourceName is the name of a recorded repository, a path on the git seat or a URL: novox/mesh-host → mesh-host.
-func sourceName(repository string) string {
-	parts := strings.Split(strings.Trim(strings.TrimSuffix(repository, ".git"), "/"), "/")
-	if len(parts) < 2 {
-		return ""
-	}
-	return parts[len(parts)-1]
-}
-
-// namedForTheCheck are the builds earlier checks of the same pull request at the same head named, read once for the
-// check (novox/hq issue 703): asked again because only the trunk moved, the check keeps what they built of a key
-// still the same. Another pull request's build, or one of an earlier head, is never kept. None when they cannot be
-// read, and the check builds, as before.
-func namedForTheCheck(ctx context.Context, p link.PullUpdated, builds []link.CheckBuild) []link.CheckedBuild {
-	if len(builds) == 0 || p.Commit == "" {
-		return nil
-	}
-	pull := link.PullRef{Owner: p.Owner, Repo: p.Repo, Number: p.Number}
-	read, err := checkedBuildsOf(ctx, []link.PullRef{pull})
-	if err != nil {
-		fmt.Printf("  the earlier checks' builds of %s/%s#%d could not be read, so the check builds: %v\n",
-			p.Owner, p.Repo, p.Number, err)
-		// empty-on-error: said above; a check handed no named build builds every module, as before issue 703
-		return nil
-	}
-	var named []link.CheckedBuild
-	for _, b := range read {
-		if b.Pull == pull && link.SameHead(b.Head, p.Commit) {
-			named = append(named, b)
-		}
-	}
-	return named
-}
-
-// checkBuildsOf are the modules a merge of the change would build, in the walk's order, as the check builds them
-// for the walk to take (novox/hq ADR 0350 §1): a module built from the repository checked, at the branch it merges
-// into, from the merge the check makes; any other — a module standing on one — from its own repository at the
-// branch it follows, as the walk builds it. A module whose build reads the repository checked through a context,
-// or that the merge deletes, cannot be built as the walk would: said, and nothing after it is built. A change that
-// moves no module builds nothing.
-func checkBuildsOf(p link.PullUpdated, scope checkScope, entries []inventory.Entry,
-	clone func(inventory.Source) (string, error)) []link.CheckBuild {
-	if len(scope.Reach.Plan.Tiers) == 0 {
-		return nil
-	}
-	m := link.SourceMoved{Owner: p.Owner, Repo: p.Repo, Base: p.Base, CloneURL: p.CloneURL}
-	byName := map[string]inventory.Entry{}
-	for _, e := range entries {
-		byName[e.Manifest.Module] = e
-	}
-	skip := map[string]string{}
-	for _, e := range scope.Reach.Packaging {
-		skip[e.Manifest.Module] = "its build reads " + p.Owner + "/" + p.Repo + " through a context, which a check " +
-			"cannot hand the merge"
-	}
-	for _, e := range scope.Reach.Deleted {
-		skip[e.Manifest.Module] = "the merge deletes it"
-	}
-	var out []link.CheckBuild
-	for tier, names := range scope.Reach.Plan.Tiers {
-		for _, name := range names {
-			e, known := byName[name]
-			b := link.CheckBuild{Module: name, Tier: tier, Skip: skip[name]}
-			switch {
-			case !known:
-				b.Skip = "the catalogue does not hold it"
-			case b.Skip != "":
-			case sourceIs(e.Source, m):
-				b.Merged, b.Path = true, e.Source.Path
-			default:
-				url, err := clone(e.Source)
-				if err != nil {
-					b.Skip = "its repository cannot be cloned: " + err.Error()
-					break
-				}
-				b.Repository, b.Path, b.Ref = url, e.Source.Path, followedBranch(e.Source.Ref)
-			}
-			out = append(out, b)
-		}
-	}
-	return out
-}
-
-// besideRefs is the ref each repository is cloned at beside a check, by the directory it is found under:
-// a core repository at the commit the mesh runs of the module built from it (`running`) — but the
-// catalogue, whose checkout beside is what tests read its files from, at its main, what the next merge
-// builds from; and beside the controller its main, for a judge the running controller predates, and the
-// lab's main, whose replays every check runs. **One rule, read by the check the controller asks for and by
-// the facts snapshot** (Facts.Beside), so a check run by hand clones what the build seat clones. Beside the
-// controller also the SDK, checked out at the commit the running controller's go.mod pins (sdkPinned), not
-// one a desktop holds (novox/hq issue 449). The checkout only places the clone: the conformance test reads the
-// fixtures at the pin of the tree under check, from the clone's history, so a pull request moving the SDK is
-// judged against the SDK it moves to (internal/link/conformance_test.go).
-func besideRefs(dir, running string) map[string]string {
-	switch dir {
-	case "mesh-catalog":
-		return map[string]string{dir: "main"}
-	case "mesh-controller":
-		return map[string]string{dir: running, "mesh-controller-main": "main", "mesh-lab": "main",
-			"mesh-sdk": sdkPinned()}
-	}
-	return map[string]string{dir: running}
-}
-
-// sdkModule is the Go module of the SDK the controller is built against.
-const sdkModule = "git.novox.be/novox/mesh-sdk/go"
-
-// pseudoCommit is the commit a Go pseudo-version names: v0.1.11-0.20261009143344-f047d0a4a970 → f047d0a4a970.
-var pseudoCommit = regexp.MustCompile(`-([0-9a-f]{12})$`)
-
-// sdkPinned is the ref of the SDK repository this controller was built from, as its go.mod pins it and its
-// build records it: a pseudo-version's commit, or a release's tag (the SDK tags its Go module under go/).
-// "main" only for a binary that records no SDK version — a local replace — which a running controller is
-// not (novox/hq issue 449).
-func sdkPinned() string {
-	info, ok := debug.ReadBuildInfo()
-	if !ok {
-		return "main"
-	}
-	for _, dep := range info.Deps {
-		if dep.Path != sdkModule {
-			continue
-		}
-		if dep.Replace != nil {
-			dep = dep.Replace
-		}
-		if m := pseudoCommit.FindStringSubmatch(dep.Version); m != nil {
-			return m[1]
-		}
-		if strings.HasPrefix(dep.Version, "v") {
-			return "go/" + dep.Version
-		}
-	}
-	return "main"
-}
-
-// siblingOf is another repository of the same owner: novox/mesh-controller → novox/mesh-lab.
-func siblingOf(repository, name string) string {
-	if cut := strings.LastIndex(repository, "/"); cut >= 0 {
-		return repository[:cut+1] + name
-	}
-	return name
-}
-
-// sourceOnSeat is a source's seat form, nil for one on no seat.
-func sourceOnSeat(s inventory.Source) *link.SourceOnSeat {
-	if s.Seat == "" {
-		return nil
-	}
-	return &link.SourceOnSeat{Seat: s.Seat, Repository: s.Repository}
-}
-
-// checkEvents is where the serving controller says a check's verdict; nil in a command.
-var checkEvents link.Bus
-
-// maxCheckReport is how much of a check's report travels in its verdict: enough for the failures and
-// the machines, never a log.
-const maxCheckReport = 60 << 10
-
-// checked says a merge check's verdict as the controller's `checked`. Nothing is recorded or
-// registered: a check builds nothing (issue 240's rule for a dry run, kept for a check).
-func checked(ctx context.Context, result link.BuildResult) {
-	// **A check stopped by its key says nothing** (novox/hq ADR 0406 §4, issue 974, review 2): it stopped because the head or
-	// the trunk commit moved on, and the newer request will judge. Said as an error it would name the live head — red
-	// statuses on the forge, a delivery refused — and written to the key it would stand in the newer request's way.
-	if result.Failed == link.SupersededByKey {
-		fmt.Printf("%s: stopped, its pull request's key moved on; the newer check will judge\n", result.ID)
-		return
-	}
-	sayChecked(ctx, checkedOf(result))
-}
-
-// checkedOf is what a check's outcome says: each layer, and an error — never a pass — for a check that
-// could not run.
-func checkedOf(result link.BuildResult) link.Checked {
-	c := link.Checked{ID: result.ID, On: result.On, Commit: result.Ref}
-	if result.Checked != nil {
-		c.Owner, c.Repo, c.Number = result.Checked.Owner, result.Checked.Repo, result.Checked.Number
-	}
-	switch {
-	case result.Check != nil:
-		c.Verdict, c.Summary, c.Report = result.Check.Verdict, result.Check.Summary, result.Check.Report
-		c.Gate, c.RepoCheck = result.Check.Gate, result.Check.RepoCheck
-		// What was judged (novox/hq ADR 0323 §3): the head merged into the trunk commit, and the commits of the
-		// repositories read beside it.
-		c.Trunk, c.Beside, c.Took = result.Check.Trunk, result.Check.Beside, result.Check.Took
-		c.Built = result.Check.Built
-		c.Validator = result.Check.Validator
-		c.Siblings, c.SiblingsUnknown, c.JudgeFrom = result.Check.Siblings, result.Check.SiblingsUnknown, result.Check.JudgeFrom
-		if c.Gate == nil {
-			// A build seat from before the layers: its verdict is the gate's.
-			c.Gate = &link.CheckLayer{Verdict: c.Verdict, Summary: c.Summary}
-		}
-	case result.Failed != "":
-		// The check could not run: an error, never read as a pass — on both layers it was asked for.
-		c.Verdict, c.Summary = "error", "the check could not run: "+firstLine(result.Failed)
-	default:
-		c.Verdict, c.Summary = "error", "the build seat answered the check with no verdict"
-	}
-	if c.Verdict == "" {
-		c.Verdict = "error"
-	}
-	if result.Check == nil {
-		c.Gate = &link.CheckLayer{Verdict: c.Verdict, Summary: c.Summary}
-		c.RepoCheck = &link.CheckLayer{Verdict: c.Verdict, Summary: c.Summary}
-	}
-	// **A group member's own check has no gate of its own** (novox/hq ADR 0403 clause 1): what ran was the repository's
-	// check alone, and its gate layer is "composed", never a pass. A failure or an error stays what it was.
-	if result.Checked != nil && result.Checked.Composed && result.Check != nil && c.Gate != nil &&
-		(c.Gate.Verdict == "pass" || c.Gate.Verdict == "warning") {
-		composedGate(&c)
-	}
-	if result.Checked != nil && c.Gate != nil && len(c.Gate.Modules) == 0 {
-		c.Gate.Modules = append(append([]string{}, result.Checked.Modules...), prefixedAll("new:", result.Checked.New)...)
-	}
-	if result.Checked != nil && c.Gate != nil && len(c.Gate.Dependents) == 0 {
-		c.Gate.Dependents = result.Checked.Dependents
-	}
-	if result.Checked != nil {
-		c.Plan = result.Checked.Plan
-		if c.Plan != nil && c.Trunk != "" {
-			// The kept delivery plan records the trunk commit with its other inputs (ADR 0323 §3).
-			plan := *c.Plan
-			plan.Trunk = c.Trunk
-			c.Plan = &plan
-		}
-		// A delivery group's composed check (novox/hq ADR 0239): every head it judged, this one first.
-		if g := result.Checked; g.Group != "" {
-			c.Group = g.Group
-			c.Members = append(c.Members, link.CheckedMember{Owner: g.Owner, Repo: g.Repo, Number: g.Number,
-				Commit: result.Ref, Trunk: c.Trunk})
-			for _, m := range g.Members {
-				c.Members = append(c.Members, link.CheckedMember{Owner: m.Owner, Repo: m.Repo, Number: m.Number,
-					Commit: m.Ref, Trunk: memberTrunk(result.Check, m)})
-			}
-		}
-	}
-	for _, l := range []*link.CheckLayer{c.Gate, c.RepoCheck} {
-		if l != nil && l.Verdict == "" {
-			l.Verdict = "error"
-		}
-	}
-	// **A check run again says so** (novox/hq issue 594). The summaries are the lines the pull request
-	// shows, clipped by the forge to a few words, so they get only a short marker after the verdict's own
-	// words; the report gets the whole sentence. Layers copied, so the build's own outcome is left as it came.
-	if mark := link.RunMarker(result.Delivery); mark != "" {
-		c.Summary += " " + mark
-		for _, l := range []**link.CheckLayer{&c.Gate, &c.RepoCheck} {
-			if *l != nil {
-				layer := **l
-				layer.Summary += " " + mark
-				*l = &layer
-			}
-		}
-		c.Report = link.Restarted(result.Delivery) + "\n\n" + c.Report
-	}
-	if len(c.Report) > maxCheckReport {
-		c.Report = "…" + c.Report[len(c.Report)-maxCheckReport:]
-	}
-	return c
-}
-
-// memberTrunk is the trunk commit the build seat merged one of a group's heads into (novox/hq ADR 0323 §6), empty
-// when it said none.
-func memberTrunk(outcome *link.CheckOutcome, m link.GroupMember) string {
-	if outcome == nil {
-		return ""
-	}
-	for _, j := range outcome.Members {
-		if strings.EqualFold(j.Owner, m.Owner) && strings.EqualFold(j.Repo, m.Repo) && strings.HasPrefix(m.Ref, j.Commit) {
-			return j.Trunk
-		}
-	}
-	return ""
-}
-
-func prefixedAll(prefix string, items []string) []string {
-	out := make([]string, 0, len(items))
-	for _, i := range items {
-		out = append(out, prefix+i)
-	}
-	return out
-}
-
-// sayChecked says a merge check's verdict on the bus, where the forge's holder hears it.
-func sayChecked(ctx context.Context, c link.Checked) {
-	repo := "none"
-	if c.RepoCheck != nil {
-		repo = strings.ToUpper(c.RepoCheck.Verdict) + " — " + c.RepoCheck.Summary
-	}
-	judged := ""
-	if c.Trunk != "" {
-		judged = " merged into trunk " + c.Trunk
-	}
-	fmt.Printf("%s: %s/%s#%d at %.8s%s checked on %s: gate %s — %s; repository %s\n", c.ID, c.Owner, c.Repo, c.Number,
-		c.Commit, judged, orSomewhere(c.On), strings.ToUpper(c.Verdict), c.Summary, repo)
-	if checkEvents == nil {
-		return
-	}
-	body, err := json.Marshal(c)
-	if err != nil {
-		return
-	}
-	stating, stop := context.WithTimeout(context.WithoutCancel(ctx), 10*time.Second)
-	defer stop()
-	if err := checkEvents.PublishSeatEvent(stating, link.MeshControllerSeat, link.KeyChecked, body); err != nil {
-		fmt.Printf("%s: the verdict could not be said, so the pull request is not told it: %v\n", c.ID, err)
-	}
-}

cmd/mesh-controller/checks_integration_test.go

@@ -1,56 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"encoding/json"
-	"testing"
-	"time"
-
-	"github.com/nats-io/nats.go"
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/link"
-	"github.com/novox/mesh-controller/internal/testbus"
-)
-
-func TestACheckStoppedByItsKeyIsAnnouncedAsNoVerdict(t *testing.T) {
-	js, err := broker.Dial(testbus.URL(t))
-	if err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(js.Close)
-	if err := broker.AssertMeshStreams(js); err != nil {
-		t.Fatal(err)
-	}
-	legacy, err := js.Conn().JetStream()
-	if err != nil {
-		t.Fatal(err)
-	}
-	was := checkEvents
-	checkEvents = link.OverNATS{Conn: js.Conn(), JS: legacy}
-	t.Cleanup(func() { checkEvents = was })
-	heard := make(chan *nats.Msg, 4)
-	sub, err := js.Conn().ChanSubscribe(link.SeatEventSubject(link.MeshControllerSeat, link.KeyChecked), heard)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer func() { _ = sub.Unsubscribe() }()
-	asked := &link.CheckRequest{Owner: "novox", Repo: "mesh-catalog", Number: 3}
-	checked(t.Context(), link.BuildResult{ID: "stopped", Ref: "abc", Checked: asked, Failed: link.SupersededByKey})
-	checked(t.Context(), link.BuildResult{ID: "broken", Ref: "abc", Checked: asked, Failed: "the facts snapshot cannot be read"})
-	select {
-	case m := <-heard:
-		var c link.Checked
-		_ = json.Unmarshal(m.Data, &c)
-		if c.ID != "broken" || c.Verdict != "error" {
-			t.Fatalf("the first verdict said is %+v; want only the broken check's error", c)
-		}
-	case <-time.After(5 * time.Second):
-		t.Fatal("nothing was said")
-	}
-	select {
-	case m := <-heard:
-		t.Fatalf("a second verdict was said: %s", m.Data)
-	case <-time.After(300 * time.Millisecond):
-	}
-}

cmd/mesh-controller/checks_queue_test.go

@@ -1,97 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"testing"
-
-	"github.com/nats-io/nats.go"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// Acceptance 5 of milestone 2 (novox/hq ADR 0406 §3, issue 974), live, with the store and a real bus: two merges into one
-// repository within a minute, with two open pull requests, leave each pull request with exactly one queued check, by the
-// stream's rule. Each merge moves the trunk, and mesh-delivery asks the controller to check both open pull requests again
-// against it (`delivery check`, which is the controller's own path for a head announced); nothing moves a request, nothing
-// asks the forge, and the queue is read back whole.
-func TestTwoMergesWithinAMinuteLeaveEachOpenPullRequestOneQueuedCheck(t *testing.T) {
-	open := aMesh(t)
-	ctx := t.Context()
-	js, _ := aBuildQueue(t)
-	servingBus.Store(js)
-	t.Cleanup(func() { servingBus.Store(nil) })
-	holdTheDeliverySeat(t, open)
-	was := askDeliveryOwner
-	t.Cleanup(func() { askDeliveryOwner = was })
-	askDeliveryOwner = func(_ context.Context, _ *nats.Conn, verb string, _ map[string]any) (json.RawMessage, error) {
-		if verb != "groups" {
-			t.Fatalf("asked the owner %s", verb)
-		}
-		return json.RawMessage(`[]`), nil
-	}
-	// The repository the two pull requests are into, as a module the mesh builds from it.
-	if err := open.inventory.RegisterModule(ctx, catalogue.Manifest{Module: "mesh-controller", Version: "1"},
-		inventory.Source{Repository: "novox/mesh-controller", Ref: "main", BuiltFrom: "c0", Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-
-	heads := map[int]string{7: "7777777777777777777777777777777777777777", 8: "8888888888888888888888888888888888888888"}
-	check := func(number int, trunk string) {
-		t.Helper()
-		p := orderMember{ID: fmt.Sprintf("novox/mesh-controller@%.12s", heads[number]), Repository: "novox/mesh-controller",
-			Base: "main", Head: heads[number], Number: number, Paths: []string{"main.go"}, ModuleDirsSaid: true,
-			BaseSHA: trunk, Ready: number == 8}.pull()
-		p.MergeCheck, p.MergeCheckSaid = true, true
-		if err := (following{open: open, oneShot: true}).PullUpdated(ctx, p); err != nil {
-			t.Fatal(err)
-		}
-	}
-	// Announced against the trunk as it stands, then asked again after each of two merges.
-	for _, trunk := range []string{"1111111111111111111111111111111111111111", "2222222222222222222222222222222222222222",
-		"3333333333333333333333333333333333333333"} {
-		check(7, trunk)
-		check(8, trunk)
-	}
-
-	q, err := link.ReadQueue(ctx, js, link.TheBuildMachine)
-	if err != nil {
-		t.Fatal(err)
-	}
-	seen := map[int]string{}
-	for _, a := range q.Asks {
-		c := a.Request.Check
-		if c == nil {
-			t.Fatalf("%s is no check", a.ID)
-		}
-		if _, twice := seen[c.Number]; twice {
-			t.Errorf("pull request %d has two queued checks", c.Number)
-		}
-		seen[c.Number] = c.Trunk
-		if a.State != link.AskWaiting {
-			t.Errorf("%s is %s", a.ID, a.State)
-		}
-		if want := "3333333333333333333333333333333333333333"; c.Trunk != want {
-			t.Errorf("pull request %d is queued against %.8s; want the newest trunk %.8s", c.Number, c.Trunk, want)
-		}
-	}
-	if len(seen) != 2 {
-		t.Fatalf("queued checks for %v; want one for each of the two open pull requests", seen)
-	}
-	// By the streams' own count: the ready one on its stream, the other on its.
-	for stream, want := range map[string]uint64{broker.ChecksReadyStream: 1, broker.ChecksOtherStream: 1} {
-		info, err := js.Context().StreamInfo(stream)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if info.State.Msgs != want {
-			t.Errorf("%s holds %d request(s); want %d", stream, info.State.Msgs, want)
-		}
-	}
-}

cmd/mesh-controller/checks_test.go

@@ -1,293 +0,0 @@
-package main
-
-import (
-	"errors"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **The mesh's module graph decides what a pull request's check runs**, not the repository (novox/hq
-// ADR 0237 as amended): a change is mapped onto the graph by the rule a merge is (issue 278), the gate
-// runs when it touches a module — a new one included — and a repository that is the mesh's and touches
-// none still has its own merge-check.sh run.
-func TestThePullRequestIsMappedOntoTheModuleGraph(t *testing.T) {
-	const catalogue = "http://forge.internal:20000/novox/mesh-catalog.git"
-	const controller = "http://forge.internal:20000/novox/mesh-controller.git"
-	const host = "http://forge.internal:20000/novox/mesh-host.git"
-	photos := fromRepo("photos", "http://forge.internal:20000/novox/photos.git", "")
-	photos.Source.Ref = "nox-mesh"
-	snake := fromRepo("snake", "jschoubben/snake", "")
-	snake.Source.Seat = "git"
-	entries := []inventory.Entry{
-		fromRepo("gitea", catalogue, "modules/gitea"),
-		fromRepo("keycloak", catalogue, "modules/keycloak"),
-		fromRepo("nats", catalogue, "modules/nats"),
-		fromRepo("mesh-controller", controller, ""),
-		fromRepo("mesh-host", host, ""),
-		photos, snake,
-	}
-	pull := func(owner, repo, base string, paths []string, dirs ...string) link.PullUpdated {
-		return link.PullUpdated{Owner: owner, Repo: repo, Base: base, Commit: "abc", Paths: paths,
-			ModuleDirs: dirs, ModuleDirsSaid: true}
-	}
-	for _, c := range []struct {
-		what                   string
-		p                      link.PullUpdated
-		modules, new, manifest string
-		mesh                   bool
-		judge                  string
-	}{
-		{"one module's own files", pull("novox", "mesh-catalog", "main", []string{"modules/gitea/index.ts"}, "modules/gitea"),
-			"gitea", "", "modules/gitea/module.json", true, ""},
-		{"a file no module's build reads touches no module (issue 280)",
-			pull("novox", "mesh-catalog", "main", []string{"merge-check.sh", "README.md"}), "", "", "", true, ""},
-		{"files the announcer could not list: everything built from it",
-			link.PullUpdated{Owner: "novox", Repo: "mesh-catalog", Base: "main", Commit: "abc", PathsTruncated: true,
-				Paths: []string{"README.md"}}, "gitea,keycloak,nats", "",
-			"modules/gitea/module.json,modules/keycloak/module.json,modules/nats/module.json", true, ""},
-		{"a new module, said by the head", pull("novox", "mesh-catalog", "main",
-			[]string{"modules/newmod/index.ts", "modules/newmod/module.json"}, "modules/newmod"),
-			"", "modules/newmod", "modules/newmod/module.json", true, ""},
-		{"the controller judges itself", pull("novox", "mesh-controller", "main", []string{"cmd/x.go"}),
-			"mesh-controller", "", "module.json", true, "self"},
-		{"the node-engine is judged with its validator", pull("novox", "mesh-host", "main", []string{"validate/v.go"}),
-			"mesh-host", "", "module.json", true, "validator"},
-		{"the core's owner, no module: the mesh's, its own check alone", pull("novox", "hq", "main", []string{"README.md"}),
-			"", "", "", true, ""},
-		{"a branch nothing is built from: the mesh's repository, no module", pull("novox", "photos", "master",
-			[]string{"server/x.js"}), "", "", "", true, ""},
-		{"the branch a module is built from", pull("novox", "photos", "nox-mesh", []string{"server/x.js"}),
-			"photos", "", "module.json", true, ""},
-		{"a repository on the forge's seat", pull("jschoubben", "snake", "main", []string{"index.html"}),
-			"snake", "", "module.json", true, ""},
-		{"a repository of nobody's, touching nothing", pull("someone", "dotfiles", "main", []string{"x"}),
-			"", "", "", false, ""},
-		{"a repository adding a module at its root", pull("someone", "newapp", "main", []string{"module.json", "x.js"}),
-			"", ".", "module.json", true, ""},
-	} {
-		s := pullScope(c.p, entries, nil, nil)
-		got := []string{strings.Join(s.Modules, ","), strings.Join(s.New, ","), strings.Join(s.Manifests, ",")}
-		want := []string{c.modules, c.new, c.manifest}
-		for i, what := range []string{"modules", "new", "manifests"} {
-			if got[i] != want[i] {
-				t.Errorf("%s: %s %q, wanted %q", c.what, what, got[i], want[i])
-			}
-		}
-		if s.Mesh != c.mesh || s.Judge != c.judge {
-			t.Errorf("%s: the mesh's %v judged by %q, wanted %v by %q", c.what, s.Mesh, s.Judge, c.mesh, c.judge)
-		}
-		if s.gated() != (c.modules != "" || c.new != "") {
-			t.Errorf("%s: gated %v", c.what, s.gated())
-		}
-	}
-}
-
-// A module whose build packages another repository's source is touched by a change to it.
-func TestAPullRequestTouchesWhatPackagesItsRepository(t *testing.T) {
-	entries := []inventory.Entry{fromRepo("node-tools", "http://forge.internal:20000/novox/mesh-tools.git", "node-tools")}
-	read := map[string][]inventory.ReadRepository{"node-tools": {{Repository: "http://forge.internal:20000/novox/mesh-sdk.git"}}}
-	s := pullScope(link.PullUpdated{Owner: "novox", Repo: "mesh-sdk", Base: "main", Commit: "abc", Paths: []string{"go/x.go"}}, entries, read, nil)
-	if strings.Join(s.Modules, ",") != "node-tools" || len(s.Manifests) != 0 {
-		t.Fatalf("a change to what node-tools packages touched %v (manifests %v)", s.Modules, s.Manifests)
-	}
-}
-
-// Each layer is said; a check that could not run is an error on both, never a pass; a build seat from
-// before the layers is read as the gate.
-func TestAChecksLayersAreEachSaidAndAnErrorIsNeverAPass(t *testing.T) {
-	asked := &link.CheckRequest{Owner: "novox", Repo: "mesh-catalog", Number: 3, Modules: []string{"gitea"}}
-	c := checkedOf(link.BuildResult{ID: "b", Ref: "abc", Checked: asked, Failed: "the facts snapshot cannot be read"})
-	if c.Verdict != "error" || c.Gate == nil || c.Gate.Verdict != "error" || c.RepoCheck == nil || c.RepoCheck.Verdict != "error" {
-		t.Fatalf("a check that could not run said %+v", c)
-	}
-	if strings.Join(c.Gate.Modules, ",") != "gitea" {
-		t.Errorf("the gate names %v", c.Gate.Modules)
-	}
-	c = checkedOf(link.BuildResult{ID: "b", Ref: "abc", Checked: asked, Check: &link.CheckOutcome{Verdict: "warning", Summary: "wide"}})
-	if c.Gate == nil || c.Gate.Verdict != "warning" || c.RepoCheck != nil {
-		t.Fatalf("an outcome without layers said %+v", c)
-	}
-	c = checkedOf(link.BuildResult{ID: "b", Ref: "abc", Checked: asked, Check: &link.CheckOutcome{Verdict: "pass",
-		Gate: &link.CheckLayer{Verdict: "pass"}, RepoCheck: &link.CheckLayer{Verdict: "fail", Summary: "its merge-check.sh failed"}}})
-	if c.RepoCheck.Verdict != "fail" || c.Gate.Verdict != "pass" {
-		t.Fatalf("the layers said %+v / %+v", c.Gate, c.RepoCheck)
-	}
-}
-
-// **The check asks the planner, never a mapping of its own** (novox/hq ADR 0238): what a pull request
-// reaches is reachOfMerge's answer — the same that plans a merge — so a file at the root touches no
-// module in both, and what stands on a touched module is named as its dependents in both.
-func TestAPullRequestReachesWhatAMergeOfItWouldPlan(t *testing.T) {
-	const catalogue = "http://forge.internal:20000/novox/mesh-catalog.git"
-	nats := fromRepo("nats", catalogue, "modules/nats")
-	nats.Source.BuiltFrom = "old"
-	gitea := fromRepo("gitea", catalogue, "modules/gitea")
-	gitea.Source.BuiltFrom = "old"
-	tools := fromRepo("node-tools", "http://forge.internal:20000/novox/mesh-tools.git", "node-tools")
-	entries := []inventory.Entry{nats, gitea, tools}
-	// node-tools stands on the bus's image; a code edge, so a plan takes it along.
-	edges := []inventory.Edge{{From: "node-tools", To: "nats", Kind: inventory.EdgeStandsOn}}
-	read := map[string][]inventory.ReadRepository{}
-
-	for _, c := range []struct {
-		what              string
-		paths             []string
-		moved, dependents string
-		width             int
-		unread            string
-	}{
-		{"a file at the root, read by no build", []string{"merge-check.sh"}, "", "", 0, "merge-check.sh"},
-		{"the bus's own directory", []string{"modules/nats/Dockerfile"}, "nats", "node-tools", 2, ""},
-		{"both, and a README", []string{"modules/gitea/index.ts", "modules/nats/x", "README.md"}, "gitea,nats", "node-tools", 3, "README.md"},
-	} {
-		p := link.PullUpdated{Owner: "novox", Repo: "mesh-catalog", Base: "main", Commit: "head", Paths: c.paths}
-		s := pullScope(p, entries, read, edges)
-		m := link.SourceMoved{Owner: "novox", Repo: "mesh-catalog", Base: "main", Commit: "head", Paths: c.paths}
-		r := reachOfMerge(m, entries, read, edges)
-		if got := strings.Join(s.Modules, ","); got != c.moved || got != strings.Join(r.Moved(), ",") {
-			t.Errorf("%s: the check reaches %q, the planner %v, wanted %q", c.what, got, r.Moved(), c.moved)
-		}
-		if got := strings.Join(s.Dependents, ","); got != c.dependents {
-			t.Errorf("%s: dependents %q, wanted %q", c.what, got, c.dependents)
-		}
-		if s.Width != c.width || s.Width != len(r.Plan.Modules) {
-			t.Errorf("%s: a merge would build %d, the planner says %d, wanted %d", c.what, s.Width, len(r.Plan.Modules), c.width)
-		}
-		if got := strings.Join(s.Unread, ","); got != c.unread {
-			t.Errorf("%s: unread %q, wanted %q", c.what, got, c.unread)
-		}
-	}
-
-	// A repository whose build another module's recipe packages: that module is reached through the
-	// planner's `read`, and what stands on it after it.
-	read["gitea"] = []inventory.ReadRepository{{Repository: "http://forge.internal:20000/novox/mesh-sdk.git"}}
-	s := pullScope(link.PullUpdated{Owner: "novox", Repo: "mesh-sdk", Base: "main", Commit: "head",
-		Paths: []string{"src/index.ts"}}, entries, read, edges)
-	if strings.Join(s.Modules, ",") != "gitea" || len(s.Manifests) != 0 {
-		t.Fatalf("a change to the source gitea packages reaches %v (manifests %v)", s.Modules, s.Manifests)
-	}
-}
-
-// **Only a commit on the trunk is published** (novox/hq ADR 0238): a build of a commit off its repository's
-// default branch — a pull request's head, a branch built by hand, a rebuild or replay of one — is recorded
-// and never registered, so nothing can send it; a check or a dry run never is either.
-func TestABuildOffTheTrunkIsNeverPublished(t *testing.T) {
-	on := link.BuildResult{ID: "b", Commit: "abc", Trunk: "main", OnTrunk: true}
-	if err := publishable(on, ""); err != nil {
-		t.Errorf("a build on the trunk was refused: %v", err)
-	}
-	off := link.BuildResult{ID: "b", Commit: "abc", Trunk: "main"}
-	if err := publishable(off, ""); !errors.Is(err, errOffTheTrunk) || !strings.Contains(err.Error(), "main") {
-		t.Errorf("a build off the trunk was let through: %v", err)
-	}
-	for _, r := range []link.BuildResult{
-		{ID: "c", Trunk: "main", OnTrunk: true, Check: &link.CheckOutcome{Verdict: "pass"}},
-		{ID: "d", Trunk: "main", OnTrunk: true, Checked: &link.CheckRequest{}},
-		{ID: "e", Trunk: "main", OnTrunk: true, DryRun: true},
-	} {
-		if publishable(r, "") == nil {
-			t.Errorf("%s, a check or a dry run, was publishable", r.ID)
-		}
-	}
-	// A module that follows a branch other than the default: that branch is its trunk, and the default
-	// is not.
-	follows := link.BuildResult{ID: "g", Commit: "abc", Trunk: "master", Branches: []string{"nox-mesh"}}
-	if err := publishable(follows, "nox-mesh"); err != nil {
-		t.Errorf("a commit on the branch a module follows was refused: %v", err)
-	}
-	if err := publishable(link.BuildResult{ID: "h", Commit: "abc", Trunk: "master", OnTrunk: true,
-		Branches: []string{"master"}}, "nox-mesh"); err == nil {
-		t.Error("a commit on the default but not on the branch the module follows was published")
-	}
-	if err := publishable(link.BuildResult{ID: "i", Commit: "abc", Trunk: "main", Branches: []string{"feat/x"}}, ""); err == nil {
-		t.Error("a feature branch's commit was published")
-	}
-	// A build seat older than the rule says nothing: let through and said, so the rule can reach the mesh.
-	if err := publishable(link.BuildResult{ID: "f", Commit: "abc"}, ""); err != nil {
-		t.Errorf("a build seat that said nothing was refused: %v", err)
-	}
-}
-
-// **A verdict names the trunk commit it judged** (novox/hq ADR 0323 §3, issue 341): the controller's `checked`
-// carries the head and the trunk commit the build seat merged it into, the commits of the repositories read beside
-// it, how long it took, and the kept delivery plan records the trunk commit with its other inputs. A group's
-// composed check names, per member, the trunk commit that head was merged into (§6).
-func TestAVerdictNamesTheTrunkCommitItJudged(t *testing.T) {
-	plan := &link.ChangePlan{Repository: "novox/mesh-host", Base: "main", Head: "dfb1415aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
-		Summary: "builds mesh-host"}
-	asked := &link.CheckRequest{Owner: "novox", Repo: "mesh-host", Number: 66, Base: "main", Plan: plan}
-	c := checkedOf(link.BuildResult{ID: "b", Ref: "dfb1415aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", Checked: asked,
-		Check: &link.CheckOutcome{Verdict: "pass", Took: "4m12s", Head: "dfb1415aaaaa", Trunk: "d28ca95bbbbb",
-			Gate: &link.CheckLayer{Verdict: "pass"}, RepoCheck: &link.CheckLayer{Verdict: "pass"},
-			Beside: map[string]string{"mesh-catalog": "0123456789ab", "mesh-lab": "ba9876543210"}}})
-	if c.Trunk != "d28ca95bbbbb" || c.Commit != "dfb1415aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" {
-		t.Fatalf("the verdict names head %s and trunk %q", c.Commit, c.Trunk)
-	}
-	if c.Beside["mesh-catalog"] != "0123456789ab" || c.Beside["mesh-lab"] != "ba9876543210" {
-		t.Fatalf("the verdict names the repositories read beside it as %v", c.Beside)
-	}
-	if c.Took != "4m12s" {
-		t.Fatalf("the verdict says it took %q", c.Took)
-	}
-	if c.Plan == nil || c.Plan.Trunk != "d28ca95bbbbb" || c.Plan.Head != plan.Head {
-		t.Fatalf("the kept plan records %+v", c.Plan)
-	}
-	if plan.Trunk != "" {
-		t.Fatal("the plan the controller asked with was changed: the verdict's is a copy")
-	}
-
-	group := &link.CheckRequest{Owner: "novox", Repo: "mesh-controller", Number: 7, Base: "main", Group: "feat/x",
-		Members: []link.GroupMember{{Owner: "novox", Repo: "mesh-host", Number: 8, Ref: "cccccccccccc0000", Base: "main"}}}
-	c = checkedOf(link.BuildResult{ID: "g", Ref: "aaaaaaaaaaaa0000", Checked: group, Check: &link.CheckOutcome{
-		Verdict: "pass", Head: "aaaaaaaaaaaa", Trunk: "111111111111", Gate: &link.CheckLayer{Verdict: "pass"},
-		Members: []link.CheckedMember{{Owner: "novox", Repo: "mesh-host", Commit: "cccccccccccc", Trunk: "222222222222"}}}})
-	if len(c.Members) != 2 || c.Members[0].Trunk != "111111111111" || c.Members[1].Trunk != "222222222222" ||
-		c.Members[1].Commit != "cccccccccccc0000" {
-		t.Fatalf("the composed check names its members %+v", c.Members)
-	}
-}
-
-// **The merge made for a check is never registered** (novox/hq ADR 0323 §2): a build of it — a commit on no branch
-// of the forge — is refused, naming the trunk. The rule of ADR 0238 §1 stands unchanged; this holds it for the
-// merge commit a check makes.
-func TestABuildOfACheckMergeIsRefusedNamingTheTrunk(t *testing.T) {
-	merge := link.BuildResult{ID: "b", Commit: "4b5c6d7e8f90aabbccddeeff0011223344556677", Trunk: "main"}
-	err := publishable(merge, "")
-	if !errors.Is(err, errOffTheTrunk) || !strings.Contains(err.Error(), "not on main") {
-		t.Fatalf("a build of a check's merge was answered %v", err)
-	}
-}
-
-// **A verdict no build judges names its trunk commit too** (novox/hq ADR 0323 §3): a change touching no module of a
-// repository with no merge-check.sh (novox/mesh-tools-go) is answered by the controller itself. Naming no trunk, the
-// merge tool refused it, asked again, got the same verdict, and refused for ever.
-func TestADirectVerdictNamesTheTrunkTheForgeAnnounced(t *testing.T) {
-	p := link.PullUpdated{Owner: "novox", Repo: "mesh-tools-go", Number: 3, Base: "main", Commit: "1a2b3c4d5e6f7a8b9c0d",
-		BaseSHA: "7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b"}
-	c := directVerdict(p, link.ChangePlan{Repository: "novox/mesh-tools-go", Base: "main", Head: p.Commit})
-	if c.Trunk != "7a8b9c0d1e2f" || c.Plan == nil || c.Plan.Trunk != "7a8b9c0d1e2f" {
-		t.Fatalf("the direct verdict names trunk %q, its plan %+v", c.Trunk, c.Plan)
-	}
-	if c.Verdict != "pass" || c.Commit != p.Commit {
-		t.Fatalf("the direct verdict is %+v", c)
-	}
-	if c := directVerdict(link.PullUpdated{Owner: "novox", Repo: "x", Commit: "abc"}, link.ChangePlan{}); c.Trunk != "" {
-		t.Fatalf("a forge that said no base head gave the trunk %q", c.Trunk)
-	}
-}
-
-// A head checked again through mesh-delivery (`delivery check --members`, a recheck) reaches the same direct verdict:
-// it names the base head the forge last announced, kept on the member, or the merge tool would refuse it for ever.
-func TestARecheckedHeadsDirectVerdictNamesItsTrunk(t *testing.T) {
-	m := orderMember{ID: "novox/mesh-tools-go@1a2b3c4d5e6f", Repository: "novox/mesh-tools-go", Base: "main",
-		Head: "1a2b3c4d5e6f7a8b9c0d", Number: 3, BaseSHA: "7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b"}
-	if c := directVerdict(m.pull(), link.ChangePlan{}); c.Trunk != "7a8b9c0d1e2f" {
-		t.Fatalf("a rechecked head's direct verdict names trunk %q", c.Trunk)
-	}
-}
-
-// A check stopped by its pull request's key moving on says no verdict (issue 974, review 2): an error said for it would name the
-// live head, and the newer request is the one that judges. A check that failed for any other reason still says its error.

cmd/mesh-controller/collect.go

@@ -1,276 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"os"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/artifacts"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// Letting the artifact store go of what the mesh no longer keeps (novox/hq ADR 0189, issue 108).
-//
-// **Run where the records change.** A build is the moment new bytes landed in the store and the
-// moment the keep set moved, so it is the moment to say what may go — and it needs no timer of
-// its own. Reclaiming the bytes is the store's own nightly step; this only decides.
-//
-// **And run when a person asks** (novox/hq ADR 0251): the `collect` verb is the same sweep, with
-// bounds of its own. One implementation, so what a person runs is exactly what a build runs.
-//
-// Never fatal to a build. The build succeeded, the module is registered, and a store that could
-// not be reached is a thing to say rather than a reason to undo any of that. The next build asks
-// again, and the references it could not collect are still uncollected, so nothing is lost by
-// having failed.
-
-// sweepBounds is how much one sweep may ask of the store.
-type sweepBounds struct {
-	// most is how many artifacts it lets go of at most.
-	most int
-	// budget is the longest it keeps its caller waiting.
-	budget time.Duration
-	// platforms is whether an index is let go of with its own platform manifests (novox/hq ADR 0257).
-	// Only a sweep a person confirmed, after its dry run listed what stays and names a platform: the
-	// records cannot see an unrecorded index, or a copy in progress, naming the same platform, and the
-	// store's tools can.
-	platforms bool
-}
-
-// afterBuild are the bounds of the sweep inside somebody's build.
-//
-// **Bounded, because this runs inside somebody's build.** The first sweep of a mesh that has never
-// collected has the whole history to get through, and a person waiting on `build` should not pay for
-// it. What is left over is simply offered again next time — builds are frequent, and the point is
-// that the store stops growing, not that it empties tonight.
-var afterBuild = sweepBounds{most: mostPerSweep, budget: sweepBudget}
-
-// sweepResult is what one sweep did.
-type sweepResult struct {
-	// HoldersWritten is how many kept archives the store now holds by a manifest it did not before.
-	HoldersWritten int
-	// Missing is how many kept archives the store does not have at all.
-	Missing int
-	// Held is whether every kept archive could be asked to be held; false stops the sweep before it
-	// lets anything go.
-	Held bool
-	// LetGo is what the store let go of, and the record now says collected.
-	LetGo []string
-	// Skipped is how many references the sweep will not address (novox/hq issue 226).
-	Skipped int
-	// Indexes is how many eligible indexes a sweep a person did not confirm left for one that is: an
-	// index goes only with its platform manifests (novox/hq ADR 0257 §4).
-	Indexes int
-	// Left is how many eligible references were not asked about this time.
-	Left int
-	// Bounded is whether it stopped at its bounds rather than at a refusal.
-	Bounded bool
-	// Stopped says why the sweep stopped before the end; empty when it did not.
-	Stopped string
-}
-
-// sweep holds every kept archive, then asks the store to let go of each reference in order, records
-// what it let go of, and says what it did.
-func sweep(ctx context.Context, inv *inventory.Inventory, store artifacts.Store, references, kept []string,
-	bounds sweepBounds) sweepResult {
-	within, stop := context.WithTimeout(ctx, bounds.budget)
-	defer stop()
-	var r sweepResult
-
-	// **Hold before letting go** (novox/hq issue 253). The store's collector keeps only what a
-	// manifest names, and archives were published as bare blobs, so every kept archive is first
-	// held by its manifest — which backfills the ones published before holders, a few at a time
-	// as builds come, and is two HEADs each once done. A kept archive that could not be held stops
-	// the sweep before it deletes anything: "everything kept is held" is the precondition the
-	// collector's safety rests on, and a store refusing a hold would refuse the deletes too.
-	// **An index goes with its platform manifests only when a person confirmed it** (novox/hq ADR
-	// 0257), and a kept index keeps its own: which platform manifests the kept indexes name is read
-	// from the store for every repository the sweep will touch, before the first delete. A single
-	// read that fails stops the sweep before it deletes anything, as a kept archive that cannot be
-	// held does. The sweep after a build leaves an eligible index for such a collect, below.
-	store.Spare = nil
-	if bounds.platforms {
-		if inv == nil {
-			r.Stopped = "no records to read which platform manifests a kept index names, so nothing was let go"
-			r.Left = len(references)
-			return r
-		}
-		images, err := inv.KeptImages(ctx)
-		if err == nil {
-			store.Spare, err = store.SpareKeptIndexes(within, images, references)
-		}
-		if err != nil {
-			r.Stopped = fmt.Sprintf("which platform manifests a kept index names could not be read, so nothing was let go: %v", err)
-			r.Left = len(references)
-			return r
-		}
-	}
-
-	wrote, missing, err := holdKept(within, store, kept)
-	r.HoldersWritten, r.Missing = wrote, missing
-	if err != nil {
-		r.Stopped = fmt.Sprintf("not every kept archive could be held, so nothing was let go: %v", err)
-		r.Left = len(references)
-		return r
-	}
-	r.Held = true
-
-	for i, reference := range references {
-		if i >= bounds.most || within.Err() != nil {
-			r.Left = len(references) - i
-			r.Bounded = true
-			if i >= bounds.most {
-				r.Stopped = fmt.Sprintf("asked about %d, the most one sweep asks", bounds.most)
-			} else {
-				r.Stopped = fmt.Sprintf("ran out of its %s", bounds.budget)
-			}
-			break
-		}
-		if !bounds.platforms {
-			// **An index waits for a confirmed collect** (novox/hq ADR 0257 §4). Let go of alone,
-			// its platform manifests would stay in the store and the record would say collected, so
-			// no later sweep would offer it again and they would stay for ever. Left eligible, the
-			// next collect a person confirms takes it with them.
-			index, err := store.IsIndex(within, reference)
-			if err != nil && !errors.Is(err, artifacts.Gone) && !errors.Is(err, artifacts.ErrNotOurs) {
-				r.Stopped = fmt.Sprintf("the artifact store could not say whether %s is an index, so nothing more was asked of it: %v", reference, err)
-				r.Left = len(references) - i
-				break
-			}
-			if index {
-				r.Indexes++
-				continue
-			}
-		}
-		err := store.LetGo(within, reference)
-		if err == nil || errors.Is(err, artifacts.Gone) {
-			// Gone is the outcome wanted, already true. Recorded so the next sweep does not ask
-			// again for ever.
-			r.LetGo = append(r.LetGo, reference)
-			continue
-		}
-		if errors.Is(err, artifacts.ErrNotOurs) {
-			// **A fact about this record, so this record is skipped** (novox/hq issue 226). Not
-			// marked collected — the mesh did not remove it and should not claim to — and not a
-			// reason to stop, because the store was never asked. One of these at the front of
-			// the oldest-first order ended every sweep until this.
-			r.Skipped++
-			if r.Skipped == 1 {
-				fmt.Fprintf(os.Stderr, "the sweep will not address %s and went on: %v\n", reference, err)
-			}
-			continue
-		}
-		// **Stopped at the first refusal by the STORE, not pushed through.** A store that refuses
-		// one refuses all of them — deletion disabled, the store down, the network gone — so
-		// going on would be a hundred identical failures and a hundred identical log lines in
-		// front of whoever was building something.
-		r.Stopped = fmt.Sprintf("the artifact store kept %s, so nothing more was asked of it: %v", reference, err)
-		r.Left = len(references) - i
-		break
-	}
-
-	if len(r.LetGo) > 0 {
-		// Recorded outside `within`: the deletions happened, and losing the record of them because
-		// the sweep ran out of budget would mean asking about them again for ever.
-		if err := inv.MarkCollected(ctx, r.LetGo); err != nil {
-			r.Stopped = fmt.Sprintf("the store let go of %d artifact(s) and the record of it did not keep: %v",
-				len(r.LetGo), err)
-		}
-	}
-	return r
-}
-
-// collect asks the store to let go of everything the mesh made and no longer keeps, and records
-// what it let go of — after a build. Says what it did and what it could not; returns nothing,
-// because nothing upstream should branch on it.
-func collect(ctx context.Context, inv *inventory.Inventory) {
-	references, err := inv.ToCollect(ctx)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "could not work out what the artifact store may let go of: %v\n", err)
-		return
-	}
-	kept, err := inv.KeptArchives(ctx)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "could not work out which archives the artifact store keeps: %v\n", err)
-		return
-	}
-	if len(references) == 0 && len(kept) == 0 {
-		return
-	}
-	shelf, err := inv.Catalogue(ctx)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "could not read the catalogue to find the artifact store: %v\n", err)
-		return
-	}
-	// As the mesh reaches it from the network. Empty means the store is not on the network — on a
-	// mesh being raised it is not yet, and there the store holds one build of anything and has
-	// nothing to collect.
-	address, err := artifactStoreAddress(ctx, inv, shelf, "")
-	if err != nil || address == "" {
-		if err != nil {
-			fmt.Fprintf(os.Stderr, "could not find the artifact store to collect from: %v\n", err)
-		}
-		return
-	}
-
-	r := sweep(ctx, inv, artifacts.Store{Address: address}, references, kept, afterBuild)
-	if r.HoldersWritten > 0 {
-		fmt.Fprintf(os.Stderr, "the artifact store now holds %d more kept archive(s) by a manifest\n", r.HoldersWritten)
-	}
-	if r.Missing > 0 {
-		fmt.Fprintf(os.Stderr, "%d archive(s) the mesh keeps are not in the artifact store at all; "+
-			"`collection` lists them\n", r.Missing)
-	}
-	if len(r.LetGo) > 0 {
-		fmt.Fprintf(os.Stderr, "the artifact store let go of %d artifact(s) the mesh no longer keeps\n", len(r.LetGo))
-	}
-	if r.Stopped != "" && !r.Bounded {
-		fmt.Fprintln(os.Stderr, r.Stopped)
-	}
-	if r.Held && r.Left > 0 {
-		fmt.Fprintf(os.Stderr, "%d more to collect; the next build asks again\n", r.Left)
-	}
-	if r.Skipped > 0 {
-		fmt.Fprintf(os.Stderr, "%d artifact(s) the sweep will not address were skipped\n", r.Skipped)
-	}
-	if r.Indexes > 0 {
-		fmt.Fprintf(os.Stderr, "%d eligible index(es) wait for a collect a person confirms, which takes their platforms too\n", r.Indexes)
-	}
-}
-
-// holdKept holds every kept archive by its manifest, stopping at the first refusal by the store.
-// Answers how many holders it wrote and how many kept archives the store does not have.
-//
-// A missing archive is counted rather than fatal: there is nothing to hold, and that is a fact
-// for an operator to read (`collection`), not a reason to stop collecting what is not kept. A
-// reference the store cannot be asked about is skipped as the deletion loop skips one
-// (novox/hq issue 226).
-func holdKept(ctx context.Context, store artifacts.Store, kept []string) (wrote, missing int, err error) {
-	for _, reference := range kept {
-		if err := ctx.Err(); err != nil {
-			return wrote, missing, fmt.Errorf("ran out of time before %s: %w", reference, err)
-		}
-		did, err := store.Hold(ctx, reference)
-		switch {
-		case err == nil:
-			if did {
-				wrote++
-			}
-		case errors.Is(err, artifacts.Gone):
-			missing++
-		case errors.Is(err, artifacts.ErrNotOurs):
-		default:
-			return wrote, missing, fmt.Errorf("holding %s: %w", reference, err)
-		}
-	}
-	return wrote, missing, nil
-}
-
-// mostPerSweep is how many artifacts one sweep will ask about. Enough that a mesh building
-// several times a day converges within days of this landing; small enough that no single build
-// waits on the whole backlog.
-const mostPerSweep = 200
-
-// sweepBudget is the longest a sweep will keep a build waiting.
-const sweepBudget = 60 * time.Second

cmd/mesh-controller/collection.go

@@ -1,166 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"flag"
-	"fmt"
-	"os"
-	"strings"
-
-	"github.com/novox/mesh-controller/internal/artifacts"
-)
-
-// What the artifact store keeps, whether each kept archive is held, and what the sweep may let go
-// (novox/hq issue 253, ADR 0189).
-//
-// **The question to answer before the store's collector runs for real.** The collector deletes
-// every blob no manifest names, and archives were published as bare blobs, so the nightly step
-// runs `--dry-run` until every archive the mesh keeps is held by its manifest. The sweep holds
-// them as builds come; this says how far that has got — "0 unheld" is the number that lets the
-// dry run go.
-//
-// Reads and changes nothing: each kept archive is asked about with HEADs only. Reached over the
-// console through the mesh-controller seat's `command` verb (`collection --json`), which needs no
-// new verb in the seat's row.
-
-type collectionReport struct {
-	// Store is the artifact store as this machine reached it; empty when it is not on the network.
-	Store string `json:"store"`
-	// KeptArchives is how many archives the mesh keeps, for either reason.
-	KeptArchives int `json:"kept_archives"`
-	// Held is how many of them the store holds by their manifest.
-	Held int `json:"held"`
-	// Unheld are the kept archives the collector would delete tonight if it ran for real.
-	Unheld []string `json:"unheld"`
-	// Missing are kept archives the store does not have at all.
-	Missing []string `json:"missing"`
-	// Unasked is how many could not be asked about, and why the asking stopped.
-	Unasked int    `json:"unasked"`
-	Stopped string `json:"stopped,omitempty"`
-	// Eligible is what the sweep may let go of: made by the mesh, kept for no reason, not yet
-	// collected — split by kind.
-	Eligible         int `json:"eligible"`
-	EligibleImages   int `json:"eligible_images"`
-	EligibleArchives int `json:"eligible_archives"`
-	// SafeToCollect is whether every kept archive was asked about and every one is held.
-	SafeToCollect bool `json:"safe_to_collect"`
-}
-
-func collectionCommand(ctx context.Context, args []string) error {
-	set := flag.NewFlagSet("collection", flag.ContinueOnError)
-	asJSON := set.Bool("json", false, "answer as JSON")
-	positionals, err := parseAround(set, args)
-	if err != nil {
-		return err
-	}
-	if len(positionals) != 0 {
-		return errors.New("collection [--json]")
-	}
-
-	open, err := openStores(ctx)
-	if err != nil {
-		return err
-	}
-	defer open.Close()
-	inv := open.inventory
-
-	kept, err := inv.KeptArchives(ctx)
-	if err != nil {
-		return err
-	}
-	eligible, err := inv.ToCollect(ctx)
-	if err != nil {
-		return err
-	}
-	report := collectionReport{KeptArchives: len(kept), Eligible: len(eligible), Unheld: []string{}, Missing: []string{}}
-	for _, reference := range eligible {
-		if strings.Contains(reference, "/blobs/") {
-			report.EligibleArchives++
-		} else {
-			report.EligibleImages++
-		}
-	}
-
-	shelf, err := inv.Catalogue(ctx)
-	if err != nil {
-		return err
-	}
-	report.Store, err = artifactStoreAddress(ctx, inv, shelf, "")
-	if err != nil {
-		return err
-	}
-	if report.Store == "" {
-		report.Unasked = len(kept)
-		report.Stopped = "this mesh has no artifact store on its network"
-	} else {
-		report.Unasked, report.Stopped = askHeld(ctx, artifacts.Store{Address: report.Store}, kept, &report)
-	}
-	report.SafeToCollect = report.Unasked == 0 && len(report.Unheld) == 0
-
-	if *asJSON {
-		encoder := json.NewEncoder(os.Stdout)
-		encoder.SetIndent("", "  ")
-		return encoder.Encode(report)
-	}
-	printCollection(report)
-	return nil
-}
-
-// askHeld asks the store about each kept archive, stopping at the first answer that is not about
-// the archive: a store that cannot be reached for one cannot be for the next, and a page of
-// identical failures says less than one line.
-func askHeld(ctx context.Context, store artifacts.Store, kept []string, report *collectionReport) (int, string) {
-	for i, reference := range kept {
-		held, err := store.Held(ctx, reference)
-		switch {
-		case err == nil && held:
-			report.Held++
-		case err == nil:
-			report.Unheld = append(report.Unheld, reference)
-		case errors.Is(err, artifacts.Gone):
-			report.Missing = append(report.Missing, reference)
-		case errors.Is(err, artifacts.ErrNotOurs):
-			// KeptArchives names only the mesh's own; counted as unasked if one ever is not.
-			report.Unasked++
-		default:
-			return report.Unasked + len(kept) - i, fmt.Sprintf("asking about %s: %v", reference, err)
-		}
-	}
-	return report.Unasked, ""
-}
-
-func printCollection(r collectionReport) {
-	store := r.Store
-	if store == "" {
-		store = "(not on the network)"
-	}
-	fmt.Printf("artifact store       %s\n", store)
-	fmt.Printf("kept archives        %d\n", r.KeptArchives)
-	fmt.Printf("  held               %d\n", r.Held)
-	fmt.Printf("  unheld             %d\n", len(r.Unheld))
-	fmt.Printf("  missing            %d\n", len(r.Missing))
-	if r.Unasked > 0 {
-		fmt.Printf("  not asked          %d (%s)\n", r.Unasked, r.Stopped)
-	}
-	fmt.Printf("eligible to let go   %d (%d images, %d archives)\n", r.Eligible, r.EligibleImages, r.EligibleArchives)
-	if len(r.Unheld) > 0 {
-		fmt.Println("\nunheld — the store's collector would delete these; the next build's sweep holds them:")
-		for _, reference := range r.Unheld {
-			fmt.Printf("  %s\n", reference)
-		}
-	}
-	if len(r.Missing) > 0 {
-		fmt.Println("\nmissing — kept by the mesh, not in the store:")
-		for _, reference := range r.Missing {
-			fmt.Printf("  %s\n", reference)
-		}
-	}
-	fmt.Println()
-	if r.SafeToCollect {
-		fmt.Println("every kept archive is held: the store's collector may run for real")
-	} else {
-		fmt.Println("NOT every kept archive is known to be held: keep the store's collector on --dry-run")
-	}
-}

cmd/mesh-controller/composed_member_check_test.go

@@ -1,68 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"context"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// A member of a group whose gate is the composed check's is asked of the build seat with no module: its repository's
-// check alone (novox/hq ADR 0403 clause 1). With no word from mesh-delivery, or one that does not say the gate is
-// composed, it is checked alone with its gate (clause 6).
-
-func askedForMember(t *testing.T, answer []groupsLine, answerErr error) link.CheckRequest {
-	t.Helper()
-	open := aMesh(t)
-	ctx := t.Context()
-	js, _ := aBuildQueue(t)
-	servingBus.Store(js)
-	t.Cleanup(func() { servingBus.Store(nil) })
-	if err := open.inventory.RegisterModule(ctx, catalogue.Manifest{Module: "mesh-controller", Version: "1"},
-		inventory.Source{Repository: "novox/mesh-controller", Ref: "main", BuiltFrom: "c0", Head: "c0"}); err != nil {
-		t.Fatal(err)
-	}
-	was := groupsAsked
-	groupsAsked = func(context.Context, bool) ([]groupsLine, error) { return answer, answerErr }
-	t.Cleanup(func() { groupsAsked = was })
-	p := link.PullUpdated{Owner: "novox", Repo: "mesh-controller", Number: 346, Base: "main", Head: "feat/x", Commit: headController,
-		Paths: []string{"main.go"}, ModuleDirsSaid: true, MergeCheck: true, MergeCheckSaid: true}
-	if err := (following{open: open, oneShot: true}).PullUpdated(ctx, p); err != nil {
-		t.Fatal(err)
-	}
-	q, err := link.ReadQueue(ctx, js, link.TheBuildMachine)
-	if err != nil || len(q.Asks) != 1 {
-		t.Fatalf("asks %d: %v", len(q.Asks), err)
-	}
-	return *q.Asks[0].Request.Check
-}
-
-func TestAComposedMembersCheckIsItsRepositoryChecksAlone(t *testing.T) {
-	line := group("feat/x", member("novox/mesh-controller", 346, headController, "main", true), member("novox/mesh-catalog", 350, headHost, "main", true))
-	line.ComposedGate = true
-	c := askedForMember(t, []groupsLine{line}, nil)
-	if len(c.Modules) != 0 || len(c.New) != 0 || len(c.Dependents) != 0 || !c.Composed {
-		t.Fatalf("the member's check is asked as %+v; want no module and composed", c)
-	}
-}
-
-func TestAMemberOfAGroupOfAnOlderMeshDeliveryKeepsItsOwnGate(t *testing.T) {
-	line := group("feat/x", member("novox/mesh-controller", 346, headController, "main", true), member("novox/mesh-catalog", 350, headHost, "main", true))
-	c := askedForMember(t, []groupsLine{line}, nil)
-	if !strings.Contains(strings.Join(c.Modules, ","), "mesh-controller") || c.Composed {
-		t.Fatalf("an older mesh-delivery's member is asked as %+v; want its own gate", c)
-	}
-}
-
-func TestAMemberWhoseGroupCannotBeLearnedIsCheckedAloneWithItsGate(t *testing.T) {
-	c := askedForMember(t, nil, context.DeadlineExceeded)
-	if !strings.Contains(strings.Join(c.Modules, ","), "mesh-controller") || c.Composed ||
-		!strings.Contains(c.SiblingsUnknown, "reads no siblings") {
-		t.Fatalf("the member is asked as %+v; want its gate and why its siblings are unknown", c)
-	}
-}

cmd/mesh-controller/composed_verdict_test.go

@@ -1,136 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// A delivery group's gate is the composed check's, and its members' own checks run their repository's check alone
-// (novox/hq ADR 0403 clauses 1 and 7). Pure: no store, no bus.
-
-// A member of a group whose line says composed_gate is a composed member; one whose group says nothing of it (an older
-// mesh-delivery), one of a group of a single pull request and a lone pull request are not.
-func TestAMemberOfAComposedGroupIsKnownByTheGroupsLine(t *testing.T) {
-	two := func(composed bool) groupsLine {
-		l := group("feat/x", member("novox/mesh-host", 114, headHost, "main", true), member("novox/mesh-controller", 346, headController, "main", true))
-		l.ComposedGate = composed
-		return l
-	}
-	p := link.PullUpdated{Owner: "novox", Repo: "mesh-host", Number: 114, Base: "main", Head: "feat/x", Commit: headHost}
-	recheck := link.PullUpdated{Owner: "novox", Repo: "mesh-host", Number: 114, Base: "main", Commit: headHost}
-	for name, c := range map[string]struct {
-		p     link.PullUpdated
-		lines []groupsLine
-		want  bool
-	}{
-		"composed":                 {p, []groupsLine{two(true)}, true},
-		"a recheck, by its number": {recheck, []groupsLine{two(true)}, true},
-		"an older mesh-delivery":   {p, []groupsLine{two(false)}, false},
-		"another group":            {p, []groupsLine{group("feat/y", member("novox/mesh-host", 1, headHost, "main", true))}, false},
-		"no group":                 {p, nil, false},
-	} {
-		if got := composedMember(c.p, c.lines); got != c.want {
-			t.Errorf("%s: composed %v, want %v", name, got, c.want)
-		}
-	}
-	alone := group("feat/x", member("novox/mesh-host", 114, headHost, "main", true))
-	alone.ComposedGate = true
-	if composedMember(p, []groupsLine{alone}) {
-		t.Error("a group of a single pull request is composed")
-	}
-}
-
-// A composed member's verdict never says its gate passed: the gate layer, and the verdict that is the gate's, read
-// "composed"; a failure or an error stays what it was.
-func TestAComposedMembersVerdictHasNoPassingGate(t *testing.T) {
-	asked := &link.CheckRequest{Owner: "novox", Repo: "mesh-host", Number: 114, Composed: true}
-	pass := link.BuildResult{ID: "b", Ref: headHost, Checked: asked, Check: &link.CheckOutcome{Verdict: "pass", Summary: "no module touched",
-		Gate: &link.CheckLayer{Verdict: "pass", Summary: "no module touched"}, RepoCheck: &link.CheckLayer{Verdict: "pass", Summary: "ok"}}}
-	c := checkedOf(pass)
-	if c.Gate == nil || c.Gate.Verdict != "composed" || c.Verdict != "composed" || c.RepoCheck == nil || c.RepoCheck.Verdict != "pass" {
-		t.Fatalf("the member's verdict says %+v gate %+v", c, c.Gate)
-	}
-	asked.Composed = false
-	if c := checkedOf(pass); c.Gate.Verdict != "pass" || c.Verdict != "pass" {
-		t.Fatalf("a member of no composed group has its own gate: %+v", c.Gate)
-	}
-	asked.Composed = true
-	failing := pass
-	failing.Check = &link.CheckOutcome{Verdict: "fail", Summary: "conflict", Gate: &link.CheckLayer{Verdict: "fail", Summary: "conflict"},
-		RepoCheck: &link.CheckLayer{Verdict: "fail", Summary: "conflict"}}
-	if c := checkedOf(failing); c.Gate.Verdict != "fail" || c.Verdict != "fail" {
-		t.Fatalf("a failure was read as composed: %+v", c.Gate)
-	}
-	broken := link.BuildResult{ID: "b", Ref: headHost, Checked: asked, Failed: "the facts snapshot cannot be read"}
-	if c := checkedOf(broken); c.Verdict != "error" || c.Gate.Verdict != "error" {
-		t.Fatalf("an error was read as composed: %+v", c)
-	}
-}
-
-// The composed verdict on the bus carries every member, each with its trunk commit, for the forge's holder to set each
-// member's mesh/merge-gate from it.
-func TestTheComposedVerdictCarriesEveryMember(t *testing.T) {
-	asked := &link.CheckRequest{Owner: "novox", Repo: "mesh-host", Number: 114, Group: "feat/x",
-		Members: []link.GroupMember{{Owner: "novox", Repo: "mesh-controller", Number: 346, Ref: headController}}}
-	c := checkedOf(link.BuildResult{ID: "g", Ref: headHost, Checked: asked, Check: &link.CheckOutcome{Verdict: "pass", Summary: "ok",
-		Trunk: "aaaaaaaaaaaa", Members: []link.CheckedMember{{Owner: "novox", Repo: "mesh-controller", Commit: headController[:12], Trunk: "bbbbbbbbbbbb"}}}})
-	body, _ := json.Marshal(c)
-	for _, want := range []string{`"group":"feat/x"`, `"members":[{"owner":"novox","repo":"mesh-host","number":114,"commit":"` + headHost + `","trunk":"aaaaaaaaaaaa"}`,
-		`{"owner":"novox","repo":"mesh-controller","number":346,"commit":"` + headController + `","trunk":"bbbbbbbbbbbb"}`} {
-		if !strings.Contains(string(body), want) {
-			t.Fatalf("the composed verdict lacks %s:\n%s", want, body)
-		}
-	}
-}
-
-// Members whose manifests order their modules in a cycle fail the composed check, naming every module and edge, and no
-// ask is made of the build seat.
-func TestAGroupInACycleFailsItsComposedCheckWithoutABuild(t *testing.T) {
-	members := []orderMember{
-		{ID: "novox/x@" + headHost[:12], Repository: "novox/x", Base: "main", Head: headHost, Number: 7, Paths: []string{"module.json"}},
-		{ID: "novox/y@" + headController[:12], Repository: "novox/y", Base: "main", Head: headController, Number: 9, Paths: []string{"module.json"}},
-	}
-	reach := map[string]orderReach{members[0].ID: {Moved: []string{"mx"}}, members[1].ID: {Moved: []string{"my"}}}
-	was, wasParent := manifestAt, parentOf
-	t.Cleanup(func() { manifestAt, parentOf = was, wasParent })
-	parentOf = func(context.Context, string, string, string) (string, error) { return "", nil }
-	manifestAt = func(_ context.Context, _, repo, _, ref string) (catalogue.Manifest, bool, error) {
-		if ref == "main" {
-			return catalogue.Manifest{}, false, nil // what the pull requests merge into holds no such manifest
-		}
-		if repo == "x" {
-			return catalogue.Manifest{Module: "mx", DefinesSeats: []catalogue.SeatDeclaration{{Name: "s", Serves: []catalogue.Verb{{Name: "a"}}}},
-				Invokes: []string{"seat:s.b"}}, true, nil
-		}
-		return catalogue.Manifest{Module: "my", DefinesSeats: []catalogue.SeatDeclaration{{Name: "s", Serves: []catalogue.Verb{{Name: "b"}}}},
-			Invokes: []string{"seat:s.a"}}, true, nil
-	}
-	c, cyclic, err := cycleVerdict(context.Background(), "feat/cycle", members, reach, []inventory.Edge(nil), nil)
-	if err != nil || !cyclic {
-		t.Fatalf("no cycle found: %v", err)
-	}
-	if c.Verdict != "fail" || c.Group != "feat/cycle" || len(c.Members) != 2 || c.Gate == nil || c.Gate.Verdict != "fail" {
-		t.Fatalf("the verdict is %+v", c)
-	}
-	for _, w := range []string{"mx", "my", "s.a", "s.b"} {
-		if !strings.Contains(c.Summary, w) {
-			t.Errorf("the cycle does not name %s: %s", w, c.Summary)
-		}
-	}
-	// Members with no edge between them are no cycle.
-	manifestsReadMu.Lock()
-	clear(manifestsRead)
-	manifestsReadMu.Unlock()
-	manifestAt = func(context.Context, string, string, string, string) (catalogue.Manifest, bool, error) {
-		return catalogue.Manifest{}, false, nil
-	}
-	if _, cyclic, err := cycleVerdict(context.Background(), "feat/cycle", members, reach, nil, nil); err != nil || cyclic {
-		t.Fatalf("a cycle where there is none: %v %v", cyclic, err)
-	}
-}

cmd/mesh-controller/condition_looks.go

@@ -1,76 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-)
-
-// The looks of the open conditions — how often each was observed, when last, its newest evidence — are
-// kept in the controller's store, not the conditions bucket (novox/hq issue 420, ADR 0289 §1): the bucket
-// is written when what a condition says changes, never for a look that saw it as it was.
-
-// storeLooks keeps the conditions' looks in the inventory.
-type storeLooks struct{ inv *inventory.Inventory }
-
-func (s storeLooks) KeepLooks(ctx context.Context, key string, l conditions.Looks) error {
-	evidence, err := json.Marshal(l.Evidence)
-	if err != nil {
-		return err
-	}
-	return s.inv.KeepConditionLooks(ctx, inventory.ConditionLooks{Key: key, Observations: l.Observations,
-		LastObserved: l.LastObserved, Evidence: evidence})
-}
-
-func (s storeLooks) Looked(ctx context.Context, key string) (conditions.Looks, bool, error) {
-	row, kept, err := s.inv.ConditionLooksOf(ctx, key)
-	if err != nil || !kept {
-		return conditions.Looks{}, kept, err
-	}
-	l, err := looksOf(row)
-	return l, err == nil, err
-}
-
-func (s storeLooks) AllLooks(ctx context.Context) (map[string]conditions.Looks, error) {
-	rows, err := s.inv.AllConditionLooks(ctx)
-	if err != nil {
-		return nil, err
-	}
-	out := make(map[string]conditions.Looks, len(rows))
-	for key, row := range rows {
-		l, err := looksOf(row)
-		if err != nil {
-			return nil, err
-		}
-		out[key] = l
-	}
-	return out, nil
-}
-
-func (s storeLooks) ForgetLooks(ctx context.Context, key string) error {
-	return s.inv.ForgetConditionLooks(ctx, key)
-}
-
-func looksOf(row inventory.ConditionLooks) (conditions.Looks, error) {
-	l := conditions.Looks{Observations: row.Observations, LastObserved: row.LastObserved.UTC()}
-	if len(row.Evidence) > 0 {
-		if err := json.Unmarshal(row.Evidence, &l.Evidence); err != nil {
-			return conditions.Looks{}, fmt.Errorf("the evidence kept for the condition %s cannot be read: %w", row.Key, err)
-		}
-	}
-	return l, nil
-}
-
-// looksHere is where a process that is not the serving controller reads the conditions' looks: the store,
-// opened for it, closed by the function returned. A store that cannot be opened is said on every condition
-// read through it, never read as none.
-func looksHere(ctx context.Context) (conditions.LookStore, func()) {
-	inv, err := openInventory(ctx)
-	if err != nil {
-		return conditions.NoLooks{Err: err}, func() {}
-	}
-	return storeLooks{inv}, inv.Close
-}

cmd/mesh-controller/condition_looks_test.go

@@ -1,89 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"testing"
-	"time"
-
-	"github.com/nats-io/nats.go/jetstream"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/testbus"
-)
-
-// **Looks at an unchanged condition write the bucket once, and `conditions` still says how often and when
-// it was seen** (novox/hq issue 420): the looks are in the controller's store, and the verb, run as a
-// process of its own, reads them from there. On 2026-10-10 one open condition had rewritten the bucket 7 003
-// times in two days.
-func TestTheConditionsVerbReadsTheLooksTheBucketNoLongerHolds(t *testing.T) {
-	inv := inventory.ForTest(t)
-	bus := testbus.Start(t)
-	serving, err := broker.Dial(bus.ClientURL())
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer serving.Close()
-	if err := serving.EnsureControllerBuckets(); err != nil {
-		t.Fatal(err)
-	}
-	ctx := t.Context()
-	store, history, err := conditions.OnTheBus(ctx, serving.Conn())
-	if err != nil {
-		t.Fatal(err)
-	}
-	k := conditions.NewKeeper(ctx, conditions.Options{Store: store, History: history, Looks: storeLooks{inv}})
-	defer k.Close(context.Background())
-	look := conditions.Observation{Scope: conditions.ScopeMachine, ID: "anchor", Kind: "silent", Machine: "anchor",
-		Severity: conditions.Warning, Summary: "anchor has not been heard from", Source: "S1"}
-	for range 4 {
-		if _, err := k.Observe(ctx, look); err != nil {
-			t.Fatal(err)
-		}
-	}
-
-	api, err := jetstream.New(serving.Conn())
-	if err != nil {
-		t.Fatal(err)
-	}
-	stream, err := api.Stream(ctx, "KV_"+broker.ConditionsBucket)
-	if err != nil {
-		t.Fatal(err)
-	}
-	info, err := stream.Info(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if info.State.LastSeq != 1 {
-		t.Fatalf("four looks at one unchanged condition wrote the bucket %d times, want 1", info.State.LastSeq)
-	}
-
-	// The verb as a process other than the serving controller: it reads the bucket and the store.
-	keptBefore := conditionsFrom
-	conditionsFrom = nil
-	defer func() { conditionsFrom = keptBefore }()
-	t.Setenv(broker.NATSVar, bus.ClientURL())
-	t.Setenv(broker.CertificateVar, "")
-	var shown bytes.Buffer
-	if err := showCondition(ctx, []string{"machine.anchor.silent", "--json"}, &shown); err != nil {
-		t.Fatal(err)
-	}
-	var c conditions.Condition
-	if err := json.Unmarshal(shown.Bytes(), &c); err != nil {
-		t.Fatalf("%v: %s", err, shown.String())
-	}
-	if c.Observations != 4 || len(c.Evidence) != 4 || c.LastObserved.IsZero() || c.LooksUnread != "" ||
-		time.Since(c.LastObserved) > time.Minute {
-		t.Fatalf("conditions show reads %d observation(s), %d evidence line(s), last %s (%q)", c.Observations,
-			len(c.Evidence), c.LastObserved, c.LooksUnread)
-	}
-	listed, err := openConditions(ctx)
-	if err != nil || len(listed) != 1 || listed[0].Observations != 4 {
-		t.Fatalf("conditions lists %+v: %v", listed, err)
-	}
-}

cmd/mesh-controller/conditions.go

@@ -1,491 +0,0 @@
-package main
-
-import (
-	"context"
-	"errors"
-	"flag"
-	"fmt"
-	"io"
-	"os"
-	"slices"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/nats-io/nats.go"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/conditions"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// What is wrong, kept until observation says it is not (novox/hq to-be 45 §2, ADR 0227).
-//
-// **`status` used to be the only place the mesh said it was wrong, and only to whoever asked.** Every
-// core failure of research 031 was found by a person looking. A condition is the mesh saying it: raised
-// by a watchdog when a signal is late (signals.go), by a probe when an invariant does not hold
-// (doctor.go), or by an event a provider sends (standing.go); kept on the bus with since-when, and its
-// looks — how often, when last, the newest evidence — in the controller's store (condition_looks.go,
-// novox/hq issue 420); said on the bus as it changes, for the operator's channel to carry; and cleared when an
-// observation says it is resolved. Nobody resolves one by hand. A person who knows silences it, for a
-// while, with a reason, and that is recorded as a hand act.
-
-// conditionsFrom is the serving controller's keeper; nil in any other process, which opens its own.
-var conditionsFrom *conditions.Keeper
-
-// keeperOn is a keeper over the store on a connection, saying its transitions on that connection, with
-// the conditions' looks kept in looks (condition_looks.go).
-func keeperOn(ctx context.Context, conn *nats.Conn, looks conditions.LookStore) (*conditions.Keeper, error) {
-	store, history, err := conditions.OnTheBus(ctx, conn)
-	if err != nil {
-		return nil, err
-	}
-	js, err := conn.JetStream()
-	if err != nil {
-		return nil, err
-	}
-	return conditions.NewKeeper(ctx, conditions.Options{Store: store, History: history, Looks: looks,
-		Teller: link.OverNATS{Conn: conn, JS: js},
-		Say:    func(format string, args ...any) { fmt.Fprintf(os.Stderr, format+"\n", args...) },
-		// What status leads with changed: composed again soon (a nudge outside the serving controller
-		// does nothing).
-		Changed: func() { statusFrom.nudge(); askerFrom.nudge() },
-		// Written under the lease, carrying its epoch (novox/hq to-be 45 §6).
-		Epoch: func() (uint64, error) { return theLease.epoch(context.WithoutCancel(ctx)) }}), nil
-}
-
-// withKeeper runs f with the serving controller's keeper, or one of its own that says everything
-// it was given before it returns.
-func withKeeper(ctx context.Context, f func(*conditions.Keeper) error) error {
-	if conditionsFrom != nil {
-		return f(conditionsFrom)
-	}
-	looks, closeLooks := looksHere(ctx)
-	defer closeLooks()
-	return onTheBus(func(conn *nats.Conn) error {
-		k, err := keeperOn(ctx, conn, looks)
-		if err != nil {
-			return err
-		}
-		defer func() {
-			flushing, cancel := context.WithTimeout(context.Background(), 15*time.Second)
-			defer cancel()
-			k.Close(flushing)
-		}()
-		return f(k)
-	})
-}
-
-// openConditions is every open condition, for `status` and `node show`: from the serving keeper, or
-// read from the bus. Where there is no bus to read it from, it says so — never "none open".
-func openConditions(ctx context.Context) ([]conditions.Condition, error) {
-	if conditionsFrom != nil {
-		return conditionsFrom.Open(ctx)
-	}
-	if _, err := broker.BusAddress(); err != nil {
-		return nil, fmt.Errorf("this process has no bus to read the conditions from: %w", err)
-	}
-	var out []conditions.Condition
-	looks, closeLooks := looksHere(ctx)
-	defer closeLooks()
-	err := onTheBus(func(conn *nats.Conn) error {
-		store, _, err := conditions.OnTheBus(ctx, conn)
-		if err != nil {
-			return err
-		}
-		reading, cancel := context.WithTimeout(ctx, 5*time.Second)
-		defer cancel()
-		out, err = conditions.ReadWith(reading, store, looks)
-		return err
-	})
-	return out, err
-}
-
-// conditionsUsage is how the verb is typed.
-const conditionsUsage = "conditions [--scope S] [--severity urgent|warning] [--machine M] [--json] | " +
-	"conditions show <key> | conditions silence <key> --for <duration> --why <text> | " +
-	"conditions history [--days N] [--key K] [--json]"
-
-// conditionsCommand is `conditions`, `conditions show`, `conditions silence` and `conditions history`.
-func conditionsCommand(ctx context.Context, args []string) error {
-	sub := "list"
-	if len(args) > 0 && !strings.HasPrefix(args[0], "-") {
-		sub, args = args[0], args[1:]
-	}
-	switch sub {
-	case "list":
-		return listConditions(ctx, args, os.Stdout)
-	case "show":
-		return showCondition(ctx, args, os.Stdout)
-	case "silence":
-		return silenceCondition(ctx, args)
-	case "history":
-		return conditionHistory(ctx, args, os.Stdout)
-	}
-	return errors.New(conditionsUsage)
-}
-
-func listConditions(ctx context.Context, args []string, w io.Writer) error {
-	set := flag.NewFlagSet("conditions", flag.ContinueOnError)
-	usageTo(set, w)
-	scope := set.String("scope", "", "only this scope: "+strings.Join(conditions.Scopes, ", "))
-	severity := set.String("severity", "", "only urgent, or only warning")
-	machine := set.String("machine", "", "only those about this machine")
-	asJSON := set.Bool("json", false, "as data")
-	if rest, err := parseAround(set, args); err != nil {
-		return err
-	} else if len(rest) > 0 {
-		return errors.New(conditionsUsage)
-	}
-	if *severity != "" && *severity != string(conditions.Urgent) && *severity != string(conditions.Warning) {
-		return fmt.Errorf("a severity is urgent or warning, not %q", *severity)
-	}
-	open, err := openConditions(ctx)
-	if err != nil {
-		return err
-	}
-	var out []conditions.Condition
-	for _, c := range open {
-		if (*scope == "" || c.Subject.Scope == *scope) && (*severity == "" || string(c.Severity) == *severity) &&
-			(*machine == "" || concerns(c, *machine)) {
-			out = append(out, c)
-		}
-	}
-	if *asJSON {
-		return printJSONTo(w, map[string]any{"conditions": inBrief(out), "open": len(open), "counted": counted(out),
-			"note": "urgent first, then oldest first; a condition clears when observation says so, never by hand; " +
-				"each with its newest evidence — `conditions key=<key>` gives one whole"})
-	}
-	if len(out) == 0 {
-		if len(open) == 0 {
-			fmt.Fprintln(w, "no open conditions")
-		} else {
-			fmt.Fprintf(w, "none of the %d open condition(s) is about that\n", len(open))
-		}
-		return nil
-	}
-	for _, line := range conditionLines(out, time.Now()) {
-		fmt.Fprintln(w, line)
-	}
-	return nil
-}
-
-// briefEvidence is how many observations a condition carries in a list of them: its newest. The store
-// keeps ten, and a list of hundreds of conditions with ten each was the larger half of an answer more
-// than the bus carries in one message (novox/hq issue 314). One condition whole is `conditions key=`.
-const briefEvidence = 1
-
-// conditionInBrief is a condition as a list carries it: its newest evidence, with how much more there is
-// and where to read it. Everything else of it, so a reader of the list — the operator's channel among
-// them — reads the same condition it always did.
-type conditionInBrief struct {
-	conditions.Condition
-	// EvidenceKept is how many observations the condition keeps, when the list shows fewer.
-	EvidenceKept int    `json:"evidence-kept,omitempty"`
-	More         string `json:"more,omitempty"`
-}
-
-// inBrief is a list of conditions in brief; never null.
-func inBrief(list []conditions.Condition) []conditionInBrief {
-	out := make([]conditionInBrief, 0, len(list))
-	for _, c := range list {
-		b := conditionInBrief{Condition: c}
-		if len(c.Evidence) > briefEvidence {
-			b.EvidenceKept = len(c.Evidence)
-			b.Evidence = c.Evidence[:briefEvidence:briefEvidence]
-			b.More = c.Show()
-		}
-		out = append(out, b)
-	}
-	return out
-}
-
-// counted is how many of a list each source raised of each kind — `D14 stalled: 689` — so a list of
-// hundreds says its shape before its lines.
-func counted(list []conditions.Condition) map[string]int {
-	out := map[string]int{}
-	for _, c := range list {
-		out[c.Source+" "+c.Kind]++
-	}
-	return out
-}
-
-// concerns says whether a condition is about a machine: it names it, or its key does.
-func concerns(c conditions.Condition, machine string) bool {
-	if c.Subject.Machine == machine || slices.Contains(c.Subject.Also, machine) {
-		return true
-	}
-	for _, part := range strings.Split(c.Key, ".") {
-		if part == machine {
-			return true
-		}
-	}
-	return false
-}
-
-// conditionLines is how a list of conditions reads: one line each, its silence under it.
-func conditionLines(list []conditions.Condition, now time.Time) []string {
-	var out []string
-	for _, c := range list {
-		times := ""
-		if c.Count > 1 {
-			times = fmt.Sprintf(", raised %d times", c.Count)
-		}
-		out = append(out, fmt.Sprintf("  %-7s %s — %s (since %s%s)", strings.ToUpper(string(c.Severity)),
-			c.Key, c.Summary, c.Raised.Local().Format("2006-01-02 15:04"), times))
-		if c.SilencedAt(now) {
-			out = append(out, fmt.Sprintf("          silenced until %s by %s: %s",
-				c.Silenced.Until.Local().Format("2006-01-02 15:04"), c.Silenced.By, c.Silenced.Why))
-		}
-	}
-	return out
-}
-
-func showCondition(ctx context.Context, args []string, w io.Writer) error {
-	set := flag.NewFlagSet("conditions show", flag.ContinueOnError)
-	usageTo(set, w)
-	asJSON := set.Bool("json", false, "as data")
-	rest, err := parseAround(set, args)
-	if err != nil {
-		return err
-	}
-	if len(rest) != 1 {
-		return errors.New("conditions show <key>")
-	}
-	key := rest[0]
-	var c conditions.Condition
-	var found bool
-	if conditionsFrom != nil {
-		c, found, err = conditionsFrom.Get(ctx, key)
-	} else {
-		looks, closeLooks := looksHere(ctx)
-		defer closeLooks()
-		err = onTheBus(func(conn *nats.Conn) error {
-			store, _, err := conditions.OnTheBus(ctx, conn)
-			if err != nil {
-				return err
-			}
-			c, found, err = conditions.ReadOneWith(ctx, store, looks, key)
-			return err
-		})
-	}
-	if err != nil {
-		return err
-	}
-	if !found {
-		return fmt.Errorf("no condition %s is open — `conditions` lists those that are, and `conditions "+
-			"history --key %s` what became of it", key, key)
-	}
-	if *asJSON {
-		return printJSONTo(w, c)
-	}
-	now := time.Now()
-	fmt.Fprintf(w, "%s  %s\n  %s\n\n", strings.ToUpper(string(c.Severity)), c.Key, c.Summary)
-	fmt.Fprintf(w, "  kind       %s\n  about      %s %s", c.Kind, c.Subject.Scope, c.Subject.ID)
-	if c.Subject.Machine != "" {
-		fmt.Fprintf(w, ", on %s", c.Subject.Machine)
-	}
-	fmt.Fprintf(w, "\n  raised by  %s\n  since      %s (%s ago), observed %d time(s), last %s ago\n",
-		c.Source, c.Raised.Local().Format("2006-01-02 15:04:05"), roughly(now.Sub(c.Raised)), c.Observations,
-		now.Sub(c.LastObserved).Round(time.Second))
-	if c.Count > 1 {
-		fmt.Fprintf(w, "  raised     %d times, each within ten minutes of clearing\n", c.Count)
-	}
-	fmt.Fprintf(w, "  resolved   by %s\n", resolverWords(c.Resolver))
-	if c.Silenced != nil {
-		fmt.Fprintf(w, "  silenced   until %s by %s: %s\n", c.Silenced.Until.Local().Format("2006-01-02 15:04"),
-			c.Silenced.By, c.Silenced.Why)
-	}
-	if len(c.Tried) > 0 {
-		fmt.Fprintln(w, "\n  tried:")
-		for _, t := range c.Tried {
-			fmt.Fprintf(w, "    %s  %s — %s: %s\n", t.At.Local().Format("2006-01-02 15:04"), orHealer(t.By), t.What, t.Outcome)
-		}
-	}
-	fmt.Fprintln(w, "\n  evidence, newest first:")
-	for _, e := range c.Evidence {
-		fmt.Fprintf(w, "    %s  %s\n", e.At.Local().Format("2006-01-02 15:04:05"), e.Said)
-	}
-	return nil
-}
-
-func resolverWords(r string) string {
-	switch r {
-	case conditions.ResolverSelf:
-		return "itself: it clears when observation says it is resolved"
-	case conditions.ResolverOperator:
-		return "the operator: nothing in the mesh will repair it"
-	case conditions.ResolverAgent:
-		return "an agent"
-	}
-	return r
-}
-
-// silenceCondition stops a condition's messages for a while (to-be 45 §2). A hand act: recorded with
-// who and why before it is done, its cause the condition's kind unless one is given.
-func silenceCondition(ctx context.Context, args []string) error {
-	set := flag.NewFlagSet("conditions silence", flag.ContinueOnError)
-	forFlag := set.String("for", "", "how long: 30m, 4h, 2d — at most 7d")
-	acts := addHandActFlags(set)
-	rest, err := parseAround(set, args)
-	if err != nil {
-		return err
-	}
-	if len(rest) != 1 {
-		return errors.New("conditions silence <key> --for <duration> --why <text>")
-	}
-	key := rest[0]
-	if err := acts.require("conditions silence"); err != nil {
-		return err
-	}
-	d, err := parseFor(*forFlag)
-	if err != nil {
-		return err
-	}
-	if d > conditions.MaxSilence {
-		return fmt.Errorf("a condition is silenced for at most %s at once; past it, say so again", conditions.MaxSilence)
-	}
-	return withKeeper(ctx, func(k *conditions.Keeper) error {
-		c, found, err := k.Get(ctx, key)
-		if err != nil {
-			return err
-		}
-		if !found {
-			return fmt.Errorf("no condition %s is open — `conditions` lists them. Nothing was silenced", key)
-		}
-		if strings.TrimSpace(*acts.cause) == "" {
-			*acts.cause = c.Kind
-		}
-		*acts.condition = key
-		acts.record(ctx, "conditions silence", []string{key, "--for", *forFlag})
-		held, err := k.Silence(ctx, key, d, link.Caller(), *acts.why)
-		if err != nil {
-			return err
-		}
-		fmt.Printf("%s is silenced until %s: no message is sent for it until then. It is still open, and "+
-			"`status` still says it; it clears when observation says it is resolved\n",
-			held.Key, held.Silenced.Until.Local().Format("2006-01-02 15:04"))
-		return nil
-	})
-}
-
-// parseFor reads a duration, days included.
-func parseFor(s string) (time.Duration, error) {
-	s = strings.TrimSpace(s)
-	if s == "" {
-		return 0, errors.New("say for how long: --for 30m, 4h or 2d")
-	}
-	if days, ok := strings.CutSuffix(s, "d"); ok {
-		n, err := strconv.Atoi(days)
-		if err != nil || n <= 0 {
-			return 0, fmt.Errorf("%q is not a number of days", s)
-		}
-		return time.Duration(n) * 24 * time.Hour, nil
-	}
-	d, err := time.ParseDuration(s)
-	if err != nil || d <= 0 {
-		return 0, fmt.Errorf("%q is not a duration: 30m, 4h or 2d", s)
-	}
-	return d, nil
-}
-
-func conditionHistory(ctx context.Context, args []string, w io.Writer) error {
-	set := flag.NewFlagSet("conditions history", flag.ContinueOnError)
-	usageTo(set, w)
-	days := set.Int("days", 7, "how many days back, at most 90")
-	key := set.String("key", "", "only this condition")
-	asJSON := set.Bool("json", false, "as data")
-	if rest, err := parseAround(set, args); err != nil {
-		return err
-	} else if len(rest) > 0 {
-		return errors.New("conditions history [--days N] [--key K] [--json]")
-	}
-	since := time.Now().Add(-time.Duration(*days) * 24 * time.Hour)
-	var events []conditions.Event
-	read := func(h conditions.History) error {
-		var err error
-		events, err = h.Since(ctx, since)
-		return err
-	}
-	var err error
-	if conditionsFrom != nil {
-		events, err = conditionsFrom.HistorySince(ctx, since)
-	} else {
-		err = onTheBus(func(conn *nats.Conn) error {
-			_, history, err := conditions.OnTheBus(ctx, conn)
-			if err != nil {
-				return err
-			}
-			return read(history)
-		})
-	}
-	if err != nil {
-		return err
-	}
-	var out []conditions.Event
-	for _, e := range events {
-		if *key == "" || e.Key == *key {
-			out = append(out, e)
-		}
-	}
-	if *asJSON {
-		if out == nil {
-			out = []conditions.Event{}
-		}
-		return printJSONTo(w, map[string]any{"history": out, "days": *days})
-	}
-	if len(out) == 0 {
-		fmt.Fprintf(w, "nothing was raised, changed or cleared in the last %d day(s)\n", *days)
-		return nil
-	}
-	for _, e := range out {
-		line := fmt.Sprintf("%s  %-13s %s", e.At.Local().Format("2006-01-02 15:04:05"), e.Change, e.Key)
-		switch e.Change {
-		case conditions.ChangeRaised, conditions.ChangeReopened:
-			line += " — " + e.Summary
-		case conditions.ChangeSeverity:
-			line += fmt.Sprintf(" — %s, was %s", e.Severity, e.Was)
-		case conditions.ChangeResolver:
-			line += fmt.Sprintf(" — %s, was %s", e.Resolver, e.Was)
-		default:
-			if e.Why != "" {
-				line += " — " + e.Why
-			}
-		}
-		fmt.Fprintln(w, line)
-	}
-	return nil
-}
-
-// printConditions is the status section that leads it: every open condition, urgent first, oldest
-// first, silenced ones with their expiry (to-be 45 §2). A store that could not be read is said, and
-// is not "none open".
-func printConditions(list []conditions.Condition, unread string, now time.Time) {
-	if unread != "" {
-		fmt.Printf("the open conditions could NOT be read, so whether anything is wrong is not known: %s\n\n", unread)
-		return
-	}
-	if len(list) == 0 {
-		return
-	}
-	urgent := 0
-	for _, c := range list {
-		if c.Severity == conditions.Urgent {
-			urgent++
-		}
-	}
-	fmt.Printf("%d open condition(s), %d urgent:\n\n", len(list), urgent)
-	for _, line := range conditionLines(list, now) {
-		fmt.Println(line)
-	}
-	fmt.Printf("\n  `conditions show <key>` says more; each clears when observation says it is resolved, " +
-		"never by hand — `conditions silence <key> --for <d> --why <text>` stops its messages\n\n")
-}
-
-// orHealer is who tried, as an attempt names it.
-func orHealer(by string) string {
-	if by == "" {
-		return "a healer"
-	}
-	return by
-}

cmd/mesh-controller/conditions_brief_integration_test.go

@@ -1,43 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"fmt"
-	"strings"
-	"testing"
-	"time"
-)
-
-func TestAVerdictCarriesAProbesFindingsInBrief(t *testing.T) {
-	var found []string
-	for i := 0; i < 689; i++ {
-		found = append(found, fmt.Sprintf("delivery d-%012x has been checking for 13h, past its bound of 45m", i))
-	}
-	run := doctorRun{Run: "run-1", Probes: []probeVerdict{{ID: "D14", Verdict: "failed", Found: found},
-		{ID: "D1", Verdict: "passed"}}}
-	answer, err := verdictAnswer(run, time.Now(), "")
-	if err != nil {
-		t.Fatal(err)
-	}
-	brief := answer["run"].(doctorRun).Probes[0]
-	if len(brief.Found) != overviewFindings || brief.FoundCount != 689 || !strings.Contains(brief.More, "probe=D14") {
-		t.Fatalf("the verdict carries %d findings of D14, count %d, more %q", len(brief.Found), brief.FoundCount, brief.More)
-	}
-	if len(run.Probes[0].Found) != 689 {
-		t.Fatal("the overview cut the run it was made from")
-	}
-	whole, err := verdictAnswer(run, time.Now(), "d14")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if p := whole["run"].(doctorRun).Probes; len(p) != 1 || len(p[0].Found) != 689 || p[0].More != "" {
-		t.Fatalf("doctor probe=D14 answered %+v", p)
-	}
-	if _, err := verdictAnswer(run, time.Now(), "D99"); err == nil {
-		t.Fatal("a probe the run does not have was answered")
-	}
-	if !strings.Contains(doctorText(answer), "probe=D14` gives them all") {
-		t.Fatalf("the text does not say how to read them all:\n%s", doctorText(answer))
-	}
-}

cmd/mesh-controller/conditions_brief_test.go

@@ -1,76 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-// stalledConditions are n open conditions like those of 2026-10-08: one per delivery held past its bound,
-// each keeping all its evidence.
-func stalledConditions(n int) []conditions.Condition {
-	at := time.Date(2026, 10, 8, 9, 0, 0, 0, time.UTC)
-	var out []conditions.Condition
-	for i := 0; i < n; i++ {
-		id := fmt.Sprintf("d-%012x", 0x51a11ed+i)
-		lines := stalledObservations([]stalledLine{{ID: id, State: "checking", For: "13h2m", Bound: "45m",
-			H2: "close: recheck", Says: "the check was asked and nothing has answered"}})
-		o := lines[0]
-		c := conditions.Condition{Key: o.Key(), Kind: o.Kind, Subject: conditions.Subject{Scope: o.Scope, ID: o.ID},
-			Severity: o.Severity, Summary: o.Summary, Source: probeDeliveriesID, Raised: at, LastObserved: at,
-			Observations: 160, Count: 1, Resolver: conditions.ResolverSelf}
-		for e := 0; e < conditions.KeptEvidence; e++ {
-			c.Evidence = append(c.Evidence, conditions.Evidence{At: at.Add(time.Duration(e) * 5 * time.Minute),
-				Said: "checking for " + (13*time.Hour + time.Duration(e)*time.Minute).String()})
-		}
-		out = append(out, c)
-	}
-	return out
-}
-
-// novox/hq issue 314: a list of hundreds of open conditions carries each one's newest evidence, with
-// how much more it keeps and where to read it, and the verb's answer says it once — as data, not again
-// as the text the command printed. On 2026-10-08, 689 stalled deliveries made that answer more than the
-// bus carries in one message; now it is less than half of one.
-func TestAListOfConditionsCarriesEachInBrief(t *testing.T) {
-	list := stalledConditions(689)
-	printed, _ := json.MarshalIndent(map[string]any{"conditions": inBrief(list), "open": len(list),
-		"counted": counted(list)}, "", "  ")
-	var parsed any
-	if err := json.Unmarshal(printed, &parsed); err != nil {
-		t.Fatal(err)
-	}
-	wire, _ := json.Marshal(map[string]any{"result": verbAnswer{OK: true, Answer: parsed,
-		Output: "its answer, as data, is `answer`\n"}})
-	before, _ := json.MarshalIndent(map[string]any{"conditions": list}, "", "  ")
-	t.Logf("689 stalled deliveries: %d bytes on the wire, where the whole list printed was %d and was sent twice",
-		len(wire), len(before))
-	if len(wire) >= 512<<10 {
-		t.Fatalf("the answer of 689 conditions is %d bytes, not under half of one message of the bus", len(wire))
-	}
-	var doc struct {
-		Conditions []conditionInBrief `json:"conditions"`
-		Counted    map[string]int     `json:"counted"`
-	}
-	if err := json.Unmarshal(printed, &doc); err != nil {
-		t.Fatal(err)
-	}
-	c := doc.Conditions[0]
-	if len(doc.Conditions) != 689 || len(c.Evidence) != 1 || c.EvidenceKept != conditions.KeptEvidence ||
-		c.Key != list[0].Key || c.Summary != list[0].Summary || !strings.Contains(c.More, "key="+c.Key) {
-		t.Fatalf("a condition in brief reads %+v", c)
-	}
-	if doc.Counted["D14 stalled"] != 689 {
-		t.Fatalf("counted %v", doc.Counted)
-	}
-	if one := inBrief(list[:1])[0]; len(list[0].Evidence) != conditions.KeptEvidence || one.Evidence[0] != list[0].Evidence[0] {
-		t.Fatal("the brief changed the condition it was made from, or kept other than the newest")
-	}
-}
-
-// The self-check's verdict carries at most overviewFindings of one probe's findings, with their count and
-// how to read them all; `doctor probe=` gives that probe whole (novox/hq issue 314).

cmd/mesh-controller/conditions_integration_test.go

@@ -1,32 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"errors"
-	"strings"
-	"testing"
-)
-
-func TestUnreadableConditionsAreNotAWellMesh(t *testing.T) {
-	open := aMesh(t)
-	_, store := withConditionsInMemory(t)
-	store.SetFail(errors.New("the bus is away"))
-	asked, err := theThreeQuestions(t.Context(), open)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if asked.well() || asked.conditionsUnread == "" {
-		t.Fatalf("well with its conditions unread: %+v", asked.conditionsUnread)
-	}
-	said := printed(t, func() error { return printStatus(asked) })
-	if !strings.HasPrefix(said, "the open conditions could NOT be read") || strings.Contains(said, "no open conditions") {
-		t.Fatalf("%s", said)
-	}
-	store.SetFail(nil)
-	asked, _ = theThreeQuestions(t.Context(), open)
-	said = printed(t, func() error { return printStatus(asked) })
-	if asked.well() && !strings.Contains(said, "no open conditions;") {
-		t.Fatalf("the all-well sentence does not say no conditions are open:\n%s", said)
-	}
-}

cmd/mesh-controller/conditions_test.go

@@ -1,84 +0,0 @@
-package main
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/novox/mesh-controller/internal/conditions"
-)
-
-// The verbs of the condition store (novox/hq to-be 45 §2) as the console reaches them, and status led
-// by what is open.
-
-func TestTheConditionsVerbComposesEachShape(t *testing.T) {
-	for _, c := range []struct {
-		args map[string]any
-		want string
-	}{
-		{map[string]any{}, "conditions --json"},
-		{map[string]any{"severity": "urgent", "machine": "ace"}, "conditions --json --severity urgent --machine ace"},
-		{map[string]any{"key": "machine.ace.silent"}, "conditions show machine.ace.silent --json"},
-		{map[string]any{"history": "true", "days": "3", "key": "machine.ace.silent"},
-			"conditions history --json --days 3 --key machine.ace.silent"},
-		{map[string]any{"silence": "machine.ace.silent", "for": "2h", "why": "on the train"},
-			"conditions silence machine.ace.silent --for 2h --why on the train"},
-		{map[string]any{"run": "true"}, "doctor run --json"},
-		{map[string]any{}, "doctor --json"},
-	} {
-		verb := "conditions"
-		if strings.HasPrefix(c.want, "doctor") {
-			verb = "doctor"
-		}
-		argv, err := argvFor(verb, c.args)
-		if err != nil || strings.Join(argv, " ") != c.want {
-			t.Errorf("%s %v composed %q (%v), want %q", verb, c.args, strings.Join(argv, " "), err, c.want)
-		}
-	}
-	for _, c := range []struct {
-		verb string
-		args map[string]any
-	}{
-		{"conditions", map[string]any{"silence": "machine.ace.silent", "why": "x"}},                           // no for
-		{"doctor", map[string]any{"run": "true", "signals": "true"}},                                          // two at once
-		{"conditions", map[string]any{"silence": "machine.ace.silent", "for": "1h", "why": "x", "days": "3"}}, // passed over
-	} {
-		if argv, err := argvFor(c.verb, c.args); err == nil {
-			t.Errorf("%s %v composed %v", c.verb, c.args, argv)
-		}
-	}
-	if repairingCommand([]string{"conditions", "silence", "k"}) != "conditions silence" {
-		t.Error("a silence is not a hand act")
-	}
-}
-
-// **A silence through the verb is recorded and bounded**; the condition stays open.
-func TestASilenceThroughTheVerbHoldsAndTheConditionStaysOpen(t *testing.T) {
-	k, _ := withConditionsInMemory(t)
-	ctx := t.Context()
-	if _, err := k.Observe(ctx, conditions.Observation{Scope: conditions.ScopeMachine, ID: "ace", Kind: "silent",
-		Severity: conditions.Warning, Summary: "ace is silent", Source: "S1"}); err != nil {
-		t.Fatal(err)
-	}
-	if err := conditionsCommand(ctx, []string{"silence", "machine.ace.silent", "--for", "2d"}); err == nil {
-		t.Fatal("silenced without saying why")
-	}
-	if err := conditionsCommand(ctx, []string{"silence", "machine.ace.silent", "--for", "8d", "--why", "x"}); err == nil {
-		t.Fatal("silenced for more than a week")
-	}
-	said := printed(t, func() error {
-		return conditionsCommand(ctx, []string{"silence", "machine.ace.silent", "--for", "2d", "--why", "on the train"})
-	})
-	if !strings.Contains(said, "is silenced until") {
-		t.Fatalf("%s", said)
-	}
-	c, found, _ := k.Get(ctx, "machine.ace.silent")
-	if !found || c.Silenced == nil || c.Silenced.Why != "on the train" {
-		t.Fatalf("%+v", c)
-	}
-	listed := printed(t, func() error { return conditionsCommand(ctx, nil) })
-	if !strings.Contains(listed, "machine.ace.silent") || !strings.Contains(listed, "silenced until") {
-		t.Fatalf("%s", listed)
-	}
-}
-
-// **Conditions that cannot be read are not none open**: status says so, and is not well.

cmd/mesh-controller/config_move.go

@@ -1,616 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/json"
-	"errors"
-	"flag"
-	"fmt"
-	"os"
-	"reflect"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/nats-io/nats.go"
-	"github.com/nats-io/nats.go/jetstream"
-
-	"github.com/novox/mesh-controller/internal/broker"
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/inventory"
-	"github.com/novox/mesh-controller/internal/link"
-)
-
-// **The move of config** (novox/hq ADR 0348 §9 and its consequences, design 57 K5, issue 664): every config value a
-// settings layer holds is set in mesh-config, one of the moves of data a release runs once after its delivery, after
-// the move of placement. A module's layer on a node becomes its own value on that node (`module.<node>.<module>.<key>`).
-// A whole-mesh layer has no module value for the whole mesh (ADR 0348 §3): its value becomes mesh config for the
-// predefined key it falls back to where that module alone falls back to the key (claude-code's managed settings
-// become `agent-managed-settings`), and otherwise the module's own value on each node it is assigned to, laid under
-// that node's layer as composition lays it. A key a layer still says by its file's name (nodered's `timeZone`) is
-// set under its config key (`time-zone`, issue 751).
-//
-// **Every node composes byte for byte as before.** The move sets the values, reads every module's resolved values
-// back through mesh-config and compares them with what the layers lay today; only when they agree does it empty the
-// layers it moved (each kept whole in its history first) and turn on the switch (inventory.FinishConfigMove), after
-// which the controller reads mesh-config where it read the layers. A module still in the settings form keeps its
-// layers and is said so. Anything that cannot move as it composes refuses the whole move, by name, before anything
-// is set. Asked again, it sets nothing that is set already.
-
-// configLevel is where mesh-config keeps a value: mesh config, node config, or a module's own value on a node.
-type configLevel struct {
-	Level  string `json:"level"`
-	Node   string `json:"node,omitempty"`
-	Module string `json:"module,omitempty"`
-}
-
-func (l configLevel) valueKey(key string) string {
-	switch l.Level {
-	case "node":
-		return "node." + l.Node + "." + key
-	case "module":
-		return "module." + l.Node + "." + l.Module + "." + key
-	}
-	return "mesh." + key
-}
-
-func (l configLevel) String() string {
-	switch l.Level {
-	case "node":
-		return "node config on " + l.Node
-	case "module":
-		return l.Module + "'s own value on " + l.Node
-	}
-	return "mesh config"
-}
-
-// configSet is one value the move sets in mesh-config, and the layers it comes from.
-type configSet struct {
-	configLevel
-	Key     string `json:"key"`
-	Value   any    `json:"value"`
-	Trusted bool   `json:"trusted,omitempty"`
-	// From is the layers it comes from, as `<module> on <where>: <key as the layer says it>`.
-	From []string `json:"from"`
-	// Already is true when mesh-config holds this value at this level already: nothing is set.
-	Already bool `json:"already,omitempty"`
-}
-
-// configMoveAnswer is what the move of config says it did, or would do.
-type configMoveAnswer struct {
-	// DryRun is true when nothing was set: asked without --confirm.
-	DryRun bool        `json:"dry-run"`
-	Sets   []configSet `json:"sets"`
-	// Moved is each layer whose values the move sets, emptied once they read back.
-	Moved []string `json:"moved"`
-	// Stays is each layer of a module still in the settings form: kept, and composed from as before.
-	Stays []string `json:"stays,omitempty"`
-	// Unread is each layer that composes nothing (its module is not assigned where it says): kept in the history,
-	// emptied, and set nowhere.
-	Unread []string `json:"unread,omitempty"`
-	// Problems is why the move refuses, each by name; nothing is set while there is one.
-	Problems []string `json:"problems,omitempty"`
-	// Switched is true once the controller reads mesh-config where it read the layers.
-	Switched bool `json:"switched"`
-}
-
-// configMovePlan is the move worked out from the layers, before anything is asked of mesh-config.
-type configMovePlan struct {
-	answer configMoveAnswer
-	// moved is the layers the move empties once the values read back.
-	moved []inventory.LayerToMove
-	// expected is, for each module the move reaches, keyed `<node>.<module>`, every value composition lays over
-	// its files today: what mesh-config must resolve for it from mesh config, node config or its own value.
-	expected map[string]map[string]any
-	// modules is each module in the config form, by the nodes it is assigned to: whose resolved values are read back.
-	modules map[string][]string
-}
-
-func whereOf(node string) string {
-	if node == "" {
-		return "the whole mesh"
-	}
-	return node
-}
-
-// planConfigMove works out the move from every layer that holds a value, the catalogue, and where each module is
-// assigned.
-func planConfigMove(layers []inventory.LayerToMove, shelf map[string]catalogue.Manifest,
-	on map[string][]string) configMovePlan {
-	p := configMovePlan{answer: configMoveAnswer{Sets: []configSet{}, Moved: []string{}},
-		expected: map[string]map[string]any{}, modules: map[string][]string{}}
-	problem := func(format string, a ...any) {
-		p.answer.Problems = append(p.answer.Problems, fmt.Sprintf(format, a...))
-	}
-	for name, m := range shelf {
-		if m.DeclaresConfig() {
-			p.modules[name] = on[name]
-		}
-	}
-
-	byModule := map[string]*layersOfModule{}
-	var names []string
-	for _, l := range layers {
-		said := fmt.Sprintf("%s on %s", l.Module, whereOf(l.Node))
-		m, known := shelf[l.Module]
-		if !known || !m.DeclaresConfig() {
-			p.answer.Stays = append(p.answer.Stays, said+" (its module is in the settings form)")
-			continue
-		}
-		if _, placement := catalogue.SplitPlacement(l.Values); len(placement) > 0 {
-			problem("%s still holds placement (%s): run move-placement first", said, strings.Join(movedKeys(placement), ", "))
-			continue
-		}
-		assigned := on[l.Module]
-		if (l.Node == "" && len(assigned) == 0) || (l.Node != "" && !containsString(assigned, l.Node)) {
-			p.answer.Unread = append(p.answer.Unread, said+" (the module is not assigned there, so it composes nothing)")
-			p.moved = append(p.moved, l)
-			continue
-		}
-		// The layer's keys as config keys: a key the file names otherwise is set under its config key.
-		as := catalogue.TakenAs(m)
-		values := map[string]any{}
-		from := map[string]string{}
-		for _, k := range movedKeys(l.Values) {
-			key := k
-			if _, declared := m.Settings[k]; !declared {
-				if renamed, ok := as[k]; ok {
-					key = renamed
-				} else {
-					problem("%s says %q, which %s does not declare: declare it, or clear it from the layer", said, k, l.Module)
-					continue
-				}
-			}
-			if _, both := values[key]; both {
-				// The layer says the key and the file's name for it: the config key wins, as composition has it (issue 751).
-				if key != k {
-					continue
-				}
-			}
-			values[key] = l.Values[k]
-			from[key] = said + ": " + k
-		}
-		om := byModule[l.Module]
-		if om == nil {
-			om = &layersOfModule{nodes: map[string]map[string]any{}, saidAt: map[string]map[string]string{}}
-			byModule[l.Module] = om
-			names = append(names, l.Module)
-		}
-		om.saidAt[l.Node] = from
-		if l.Node == "" {
-			om.mesh = values
-		} else {
-			om.nodes[l.Node] = values
-		}
-		p.moved = append(p.moved, l)
-		p.answer.Moved = append(p.answer.Moved, said)
-	}
-	sort.Strings(names)
-
-	// Which predefined key each module falls back to, so a whole-mesh value goes to mesh config only where no other
-	// module's value moves with it.
-	fallingBack := map[string][]string{}
-	for name, m := range shelf {
-		for _, d := range m.Settings {
-			if d.Predefined != "" && !containsString(fallingBack[d.Predefined], name) {
-				fallingBack[d.Predefined] = append(fallingBack[d.Predefined], name)
-			}
-		}
-	}
-
-	for _, name := range names {
-		m, om := shelf[name], byModule[name]
-		asked := catalogue.AskedKeys(m)
-		keys := map[string]bool{}
-		for k := range om.mesh {
-			keys[k] = true
-		}
-		for _, values := range om.nodes {
-			for k := range values {
-				keys[k] = true
-			}
-		}
-		for _, key := range movedKeys(keys) {
-			d := m.Settings[key]
-			meshValue, meshSays := om.mesh[key]
-			alone := d.Predefined != "" && len(fallingBack[d.Predefined]) == 1
-			if meshSays && alone {
-				p.set(configLevel{Level: "mesh"}, d.Predefined, meshValue, d, om.said("", key))
-			}
-			for _, node := range on[name] {
-				nodeValue, nodeSays := om.nodes[node][key]
-				value := meshValue
-				switch {
-				case nodeSays && meshSays:
-					_, under := meshValue.(map[string]any)
-					_, over := nodeValue.(map[string]any)
-					if under && over && asked[key] {
-						problem("%s on %s lays an object for %q over the whole mesh's, and a placeholder takes it whole "+
-							"where its file merges the two: say the value on %s whole, then move", name, node, key, node)
-						continue
-					}
-					value = catalogue.LaidOver(meshValue, nodeValue)
-				case nodeSays:
-					value = nodeValue
-				case !meshSays:
-					continue
-				}
-				p.expect(node, name, key, value)
-				if nodeSays || !alone {
-					saidBy := om.said(node, key)
-					if meshSays {
-						saidBy = append(om.said("", key), saidBy...)
-					}
-					p.set(configLevel{Level: "module", Node: node, Module: name}, key, value, d, saidBy)
-				}
-			}
-		}
-	}
-	sort.Strings(p.answer.Problems)
-	return p
-}
-
-// layersOfModule is one module's layers as the move reads them: its whole-mesh layer's config values, each node's,
-// and where each key was said, by node ("" for the whole mesh).
-type layersOfModule struct {
-	mesh   map[string]any
-	nodes  map[string]map[string]any
-	saidAt map[string]map[string]string
-}
-
-func (om *layersOfModule) said(node, key string) []string {
-	if s, ok := om.saidAt[node][key]; ok {
-		return []string{s}
-	}
-	return nil
-}
-
-// set is one value the move sets, judged against its declaration as mesh-config will judge it.
-func (p *configMovePlan) set(level configLevel, key string, value any, d catalogue.SettingDeclaration, from []string) {
-	p.answer.Sets = append(p.answer.Sets, configSet{configLevel: level, Key: key, Value: value, Trusted: d.Trusted,
-		From: from})
-	for _, wrong := range catalogue.ValueProblems(d, value) {
-		p.answer.Problems = append(p.answer.Problems, fmt.Sprintf("%s at %s: %s", key, level, wrong))
-	}
-}
-
-func (p *configMovePlan) expect(node, module, key string, value any) {
-	k := node + "." + module
-	if p.expected[k] == nil {
-		p.expected[k] = map[string]any{}
-	}
-	p.expected[k][key] = value
-}
-
-func movedKeys[V any](m map[string]V) []string {
-	out := make([]string, 0, len(m))
-	for k := range m {
-		out = append(out, k)
-	}
-	sort.Strings(out)
-	return out
-}
-
-// configService is mesh-config as the move asks it: what it holds at each level, what it resolved, and a value set
-// as the controller carries it from its terminal.
-type configService interface {
-	// Values is every value set, by its key in mesh-config_values (`mesh.<key>`, `node.<node>.<key>`,
-	// `module.<node>.<module>.<key>`).
-	Values(ctx context.Context) (map[string]json.RawMessage, error)
-	// Resolved is every resolved value.
-	Resolved(ctx context.Context) ([]resolvedEntry, error)
-	// Set sets one value at its level, by whom and why.
-	Set(ctx context.Context, level configLevel, key string, value any, by, why string) error
-}
-
-// runConfigMove is the move against a store and mesh-config: a dry run says what it would set.
-func runConfigMove(ctx context.Context, inv *inventory.Inventory, config configService, apply bool, by,
-	why string) (configMoveAnswer, error) {
-	layers, holding, err := inv.LayersToMove(ctx)
-	if err != nil {
-		return configMoveAnswer{}, err
-	}
-	entries, err := inv.Catalogued(ctx)
-	if err != nil {
-		return configMoveAnswer{}, err
-	}
-	shelf := map[string]catalogue.Manifest{}
-	on := map[string][]string{}
-	for _, e := range entries {
-		shelf[e.Manifest.Module] = e.Manifest
-		on[e.Manifest.Module] = e.On
-	}
-	p := planConfigMove(layers, shelf, on)
-	if len(holding) > 0 && len(p.answer.Problems) == 0 {
-		p.answer.Problems = append(p.answer.Problems, "a layer still holds placement ("+strings.Join(holding, "; ")+
-			"): run move-placement first")
-	}
-	moved, err := inv.ConfigMoved(ctx)
-	if err != nil {
-		return configMoveAnswer{}, err
-	}
-	p.answer.Switched = moved.Moved
-	if config == nil {
-		return p.answer, errors.New("mesh-config cannot be asked, so nothing was moved")
-	}
-	held, err := config.Values(ctx)
-	if err != nil {
-		return p.answer, fmt.Errorf("what mesh-config holds cannot be read, so nothing was moved: %w", err)
-	}
-	for i := range p.answer.Sets {
-		s := &p.answer.Sets[i]
-		if was, ok := held[s.valueKey(s.Key)]; ok && sameJSON(was, s.Value) {
-			s.Already = true
-		}
-	}
-	p.answer.DryRun = !apply
-	if !apply || len(p.answer.Problems) > 0 {
-		if apply {
-			return p.answer, fmt.Errorf("the move of config refuses, and nothing was set: %s",
-				strings.Join(p.answer.Problems, "; "))
-		}
-		return p.answer, nil
-	}
-	if len(p.moved) == 0 && moved.Moved {
-		return p.answer, nil
-	}
-	for _, s := range p.answer.Sets {
-		if s.Already {
-			continue
-		}
-		said := "moved from the settings layer of " + strings.Join(s.From, " and ") + " (issue 664): " + why
-		if err := config.Set(ctx, s.configLevel, s.Key, s.Value, by, said); err != nil {
-			return p.answer, fmt.Errorf("%s at %s was not set, and no layer was emptied; ask the move again: %w",
-				s.Key, s.configLevel, err)
-		}
-	}
-	// Read back through mesh-config before anything points at it (design 57): every module the move reaches, and
-	// every other in the config form, must resolve exactly what its layers lay today.
-	if differs, err := readsBack(ctx, config, p); err != nil {
-		return p.answer, err
-	} else if len(differs) > 0 {
-		return p.answer, fmt.Errorf("mesh-config does not resolve what the layers lay today, so no layer was emptied and "+
-			"the controller still composes from the layers: %s", strings.Join(differs, "; "))
-	}
-	if err := inv.FinishConfigMove(ctx, p.moved, by, why); err != nil {
-		return p.answer, err
-	}
-	p.answer.Switched = true
-	return p.answer, nil
-}
-
-// readsBack compares what mesh-config resolved with what the layers lay, for every module in the config form on
-// every node it is assigned to, and says each difference. A value the layers do not lay and mesh-config resolves from
-// a level would be laid once the switch is on: a difference too.
-func readsBack(ctx context.Context, config configService, p configMovePlan) ([]string, error) {
-	var resolved []resolvedEntry
-	var err error
-	// mesh-config writes the resolved values with each set; a pass that missed one is put right by its next
-	// resolution, so a difference is read again for a little while before it is said.
-	for wait := 0; ; wait++ {
-		if resolved, err = config.Resolved(ctx); err != nil {
-			return nil, fmt.Errorf("mesh-config's resolved values cannot be read back, so no layer was emptied: %w", err)
-		}
-		differs, err := differences(resolved, p)
-		if err != nil || len(differs) == 0 || wait >= readBackTries {
-			return differs, err
-		}
-		select {
-		case <-ctx.Done():
-			return nil, ctx.Err()
-		case <-time.After(readBackEvery):
-		}
-	}
-}
-
-// How often, and how many times, the move reads mesh-config's resolved values back before it says they differ.
-var (
-	readBackEvery = 2 * time.Second
-	readBackTries = 15
-)
-
-func differences(resolved []resolvedEntry, p configMovePlan) ([]string, error) {
-	var differs []string
-	for _, module := range movedKeys(p.modules) {
-		for _, node := range p.modules[module] {
-			laid, err := configLaid(resolved, node, module)
-			if err != nil {
-				return nil, err
-			}
-			want := p.expected[node+"."+module]
-			if want == nil {
-				want = map[string]any{}
-			}
-			for _, k := range movedKeys(mergedKeys(laid, want)) {
-				got, has := laid[k]
-				w, wants := want[k]
-				switch {
-				case !wants:
-					differs = append(differs, fmt.Sprintf("%s on %s resolves %s from a level no layer says; clear it "+
-						"there, or set it in a layer first", module, node, k))
-				case !has:
-					differs = append(differs, fmt.Sprintf("%s on %s does not resolve %s from the value moved", module, node, k))
-				case !reflect.DeepEqual(normalJSON(got), normalJSON(w)):
-					differs = append(differs, fmt.Sprintf("%s on %s resolves %s as %s, and its layers lay %s", module,
-						node, k, compactJSON(got), compactJSON(w)))
-				}
-			}
-		}
-	}
-	return differs, nil
-}
-
-func mergedKeys(a, b map[string]any) map[string]bool {
-	out := map[string]bool{}
-	for k := range a {
-		out[k] = true
-	}
-	for k := range b {
-		out[k] = true
-	}
-	return out
-}
-
-func normalJSON(v any) any {
-	raw, _ := json.Marshal(v)
-	var out any
-	_ = json.Unmarshal(raw, &out)
-	return out
-}
-
-func compactJSON(v any) string {
-	raw, _ := json.Marshal(v)
-	return string(raw)
-}
-
-func sameJSON(raw json.RawMessage, v any) bool {
-	var held any
-	if err := json.Unmarshal(raw, &held); err != nil {
-		return false
-	}
-	return reflect.DeepEqual(held, normalJSON(v))
-}
-
-// busConfig is mesh-config on this controller's bus: its buckets read directly, a value set through its verb in
-// the controller's own name, so mesh-config takes a trusted value as given at the controller's terminal (ADR 0348 §8).
-type busConfig struct{}
-
-func (busConfig) Values(ctx context.Context) (map[string]json.RawMessage, error) {
-	out := map[string]json.RawMessage{}
-	err := onTheBus(func(conn *nats.Conn) error {
-		js, err := jetstream.New(conn)
-		if err != nil {
-			return err
-		}
-		ctx, cancel := context.WithTimeout(ctx, 20*time.Second)
-		defer cancel()
-		kv, err := js.KeyValue(ctx, broker.BucketName("mesh-config", "values"))
-		if err != nil {
-			return err
-		}
-		w, err := kv.WatchAll(ctx, jetstream.IgnoreDeletes())
-		if err != nil {
-			return err
-		}
-		defer func() { _ = w.Stop() }()
-		for e := range w.Updates() {
-			if e == nil {
-				return nil
-			}
-			var v struct {
-				Value json.RawMessage `json:"value"`
-			}
-			if err := json.Unmarshal(e.Value(), &v); err != nil {
-				return fmt.Errorf("mesh-config holds %q, which is not a value: %w", e.Key(), err)
-			}
-			out[e.Key()] = v.Value
-		}
-		return errors.New("mesh-config's values stopped answering")
-	})
-	return out, err
-}
-
-func (busConfig) Resolved(ctx context.Context) ([]resolvedEntry, error) { return readResolved(ctx) }
-
-func (busConfig) Set(ctx context.Context, level configLevel, key string, value any, by, why string) error {
-	args := map[string]any{"action": "set", "key": key, "value": value, "why": why, "by": by}
-	if level.Node != "" {
-		args["node"] = level.Node
-	}
-	if level.Module != "" {
-		args["module"] = level.Module
-	}
-	return onTheBus(func(conn *nats.Conn) error {
-		answer, err := link.AskMeshSeatToolAs(ctx, conn, broker.ControllerName, "mesh-config", "config", args, 30*time.Second)
-		if err != nil {
-			return err
-		}
-		if answer.Error != "" {
-			return errors.New(answer.Error)
-		}
-		return nil
-	})
-}
-
-// moveConfigCommand is `move-config`: the move of config (issue 664).
-func moveConfigCommand(ctx context.Context, args []string) error {
-	set := flag.NewFlagSet("move-config", flag.ContinueOnError)
-	asJSON := set.Bool("json", false, "answer as JSON")
-	confirm := set.Bool("confirm", false, "set the values and switch, rather than only say what would move")
-	f := addHandActFlags(set)
-	positionals, err := parseAround(set, args)
-	if err != nil {
-		return err
-	}
-	if len(positionals) != 0 {
-		return errors.New("move-config [--json] [--confirm --why <text>]")
-	}
-	if !*confirm && f.given() {
-		return errors.New("move-config takes --why only with --confirm: without it nothing is moved. Nothing was done")
-	}
-	if *confirm {
-		if err := f.require("move-config"); err != nil {
-			return err
-		}
-	}
-	open, err := openStores(ctx)
-	if err != nil {
-		return err
-	}
-	defer open.Close()
-	if *confirm {
-		f.record(ctx, "move-config", nil)
-	}
-	why := ""
-	if *confirm {
-		why = strings.TrimSpace(*f.why)
-	}
-	answer, err := runConfigMove(ctx, open.inventory, busConfig{}, *confirm, "the move of config, run by "+link.Caller(), why)
-	if *asJSON {
-		encoder := json.NewEncoder(os.Stdout)
-		encoder.SetIndent("", " ")
-		if encErr := encoder.Encode(answer); encErr != nil {
-			return encErr
-		}
-		return err
-	}
-	fmt.Print(describeConfigMove(answer))
-	return err
-}
-
-// describeConfigMove says the answer as a person reads it.
-func describeConfigMove(a configMoveAnswer) string {
-	var b strings.Builder
-	verb := "set"
-	if a.DryRun {
-		verb = "would set"
-	}
-	for _, s := range a.Sets {
-		state := verb
-		if s.Already {
-			state = "holds already"
-		}
-		fmt.Fprintf(&b, "%s %s = %s at %s (from %s)\n", state, s.Key, compactJSON(s.Value), s.configLevel,
-			strings.Join(s.From, " and "))
-	}
-	for _, s := range a.Unread {
-		fmt.Fprintf(&b, "emptied, set nowhere: %s\n", s)
-	}
-	for _, s := range a.Stays {
-		fmt.Fprintf(&b, "stays: %s\n", s)
-	}
-	for _, s := range a.Problems {
-		fmt.Fprintf(&b, "refused: %s\n", s)
-	}
-	switch {
-	case len(a.Problems) > 0:
-		b.WriteString("nothing was set: the move refuses until each is put right\n")
-	case a.DryRun:
-		fmt.Fprintf(&b, "%d layer(s), %d value(s); nothing was set — with --confirm --why <text> they are\n",
-			len(a.Moved), len(a.Sets))
-	case a.Switched:
-		fmt.Fprintf(&b, "%d layer(s) moved into mesh-config, each kept whole in its history first; the controller "+
-			"reads mesh-config where it read them\n", len(a.Moved))
-	}
-	return b.String()
-}

cmd/mesh-controller/config_moved_integration_test.go

@@ -1,467 +0,0 @@
-//go:build integration
-
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"os"
-	"path/filepath"
-	"reflect"
-	"sort"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/novox/mesh-controller/internal/catalogue"
-	"github.com/novox/mesh-controller/internal/overlay"
-)
-
-func aConfiguredMesh(t *testing.T) (*stores, configuredMesh, map[string]map[string]any) {
-	t.Helper()
-	open := aMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	for i, name := range []string{"workstation", "desktop"} {
-		record, err := inv.AddNode(ctx, name)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if err := inv.SetPlace(ctx, name, name+".example:51820", "here", false, fmt.Sprintf("10.77.0.%d", i+3)); err != nil {
-			t.Fatal(err)
-		}
-		if err := inv.RecordProfile(ctx, record.ID, map[string]any{"capabilities": []any{
-			map[string]any{"name": "container-runtime", "present": true},
-			map[string]any{"name": "systemd", "present": true}}}); err != nil {
-			t.Fatal(err)
-		}
-		if err := inv.RecordSealingKey(ctx, record.ID, aPublicKey(t)); err != nil {
-			t.Fatal(err)
-		}
-		if err := inv.RecordOverlayKey(ctx, record.ID, aPublicKey(t)); err != nil {
-			t.Fatal(err)
-		}
-		if _, err := inv.Assign(ctx, name, overlay.Name); err != nil {
-			t.Fatal(err)
-		}
-	}
-	raw, err := os.ReadFile(filepath.Join("testdata", "config-moved", "mesh.json"))
-	if err != nil {
-		t.Fatal(err)
-	}
-	var w configuredMesh
-	if err := json.Unmarshal(raw, &w); err != nil {
-		t.Fatal(err)
-	}
-	list, err := catalogue.ParsePredefined(w.Predefined)
-	if err != nil {
-		t.Fatal(err)
-	}
-	catalogue.UsePredefined(list)
-	served := map[string]map[string]any{}
-	for _, text := range w.Modules {
-		var shape map[string]json.RawMessage
-		if err := json.Unmarshal(text, &shape); err != nil {
-			t.Fatal(err)
-		}
-		var name string
-		_ = json.Unmarshal(shape["module"], &name)
-		if s, ok := shape["serves-checked"]; ok {
-			var serves map[string]any
-			if err := json.Unmarshal(s, &serves); err != nil {
-				t.Fatal(err)
-			}
-			served[name] = serves
-			delete(shape, "serves-checked")
-		}
-		text, err := json.Marshal(shape)
-		if err != nil {
-			t.Fatal(err)
-		}
-		m, err := catalogue.ParseManifest(text)
-		if err != nil {
-			t.Fatalf("%s: %v", name, err)
-		}
-		register(t, open, m)
-	}
-	for _, l := range w.Layers {
-		values, err := json.Marshal(l.Values)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if l.Node == "" {
-			inv.ExecForTest(t, `insert into settings (node, module, values) values (null, $1, $2)`, l.Module, string(values))
-			continue
-		}
-		inv.ExecForTest(t, `insert into settings (node, module, values) select id, $2, $3 from node where name = $1`,
-			l.Node, l.Module, string(values))
-	}
-	for _, module := range movedKeys(w.On) {
-		for _, node := range w.On[module] {
-			if _, err := assign(ctx, open, node, module); err != nil {
-				t.Fatalf("assign %s %s: %v", node, module, err)
-			}
-		}
-	}
-	return open, w, served
-}
-
-func TestEveryMachineIsToldTheSameAfterTheMoveOfConfig(t *testing.T) {
-	open, w, served := aConfiguredMesh(t)
-	ctx := t.Context()
-	readBackTries = 0
-	t.Cleanup(func() { readBackTries = 15 })
-	inv := open.inventory
-	config := &standInMeshConfig{open: open, values: map[string]any{}}
-	inv.ReadsConfigFrom(config.laid)
-	before := toldEveryMachine(t, open, served, w.On)
-	listedBefore := effectiveEverywhere(t, open, w)
-	factsBefore, err := gatherFacts(ctx, open, "2.11.17")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	asked, err := runConfigMove(ctx, inv, config, false, "the move of config, run by a test", "")
-	if err != nil || !asked.DryRun || asked.Switched || len(asked.Problems) > 0 || len(config.sets) > 0 {
-		t.Fatalf("the move, not confirmed, says %+v (%v) and set %v", asked, err, config.sets)
-	}
-	// nodered's live layer says the file's name for its time zone: set under the config key (issue 751).
-	if s := setAt(asked, "module.anchor.nodered.time-zone"); len(s) != 1 || s[0].Value != "Europe/Brussels" ||
-		!strings.HasSuffix(s[0].From[0], ": timeZone") {
-		t.Errorf("nodered's time zone moves as %+v", s)
-	}
-	for _, s := range asked.Sets {
-		if s.Key == "timeZone" {
-			t.Errorf("a key is set under the file's name: %+v", s)
-		}
-	}
-	// claude-code's whole-mesh managed settings become mesh config for agent-managed-settings (ADR 0348's
-	// consequences), and its whole-mesh layer sets no module value.
-	if s := setAt(asked, "mesh.agent-managed-settings"); len(s) != 1 || s[0].From[0] != "claude-code on the whole mesh: managed_settings" {
-		t.Errorf("claude-code's managed settings move as %+v", s)
-	}
-	for _, node := range fourMachines {
-		if s := setAt(asked, "module."+node+".claude-code.managed_settings"); len(s) > 0 {
-			t.Errorf("claude-code's managed settings are also set on %s: %+v", node, s)
-		}
-	}
-	// A whole-mesh layer of a value no predefined key holds goes to each machine it is assigned to, under that
-	// machine's layer: power's on the workstation is the workstation's, its own elsewhere.
-	if s := setAt(asked, "module.workstation.power.handle-power-key"); len(s) != 1 || s[0].Value != "suspend" {
-		t.Errorf("power's key on the workstation moves as %+v", s)
-	}
-	if s := setAt(asked, "module.anchor.power.handle-power-key"); len(s) != 1 || s[0].Value != "poweroff" {
-		t.Errorf("power's key on the anchor moves as %+v", s)
-	}
-	for _, s := range asked.Sets {
-		if s.Level == "node" {
-			t.Errorf("a machine's layer became node config: %+v", s)
-		}
-	}
-	var stays []string
-	for _, s := range asked.Stays {
-		stays = append(stays, strings.Fields(s)[0])
-	}
-	sort.Strings(stays)
-	if want := []string{"bazarr", "bazarr", "bookshelf", "jackett", "kernel", "kometa", "lidarr", "nzbget", "ombi",
-		"plex", "qbittorrent", "radarr", "sonarr", "tautulli"}; len(stays) < 10 || !containsString(stays, "kernel") {
-		t.Errorf("the layers that stay are %v, want those of %v", stays, want)
-	}
-	if after := toldEveryMachine(t, open, served, w.On); !reflect.DeepEqual(after, before) {
-		t.Fatal("a dry run changed what a machine is told")
-	}
-
-	moved, err := runConfigMove(ctx, inv, config, true, "the move of config, run by a test", "release 57 is delivered")
-	if err != nil || moved.DryRun || !moved.Switched {
-		t.Fatalf("the move says %+v (%v)", moved, err)
-	}
-	if len(config.sets) != len(asked.Sets) {
-		t.Fatalf("the move set %d values, and said it would set %d", len(config.sets), len(asked.Sets))
-	}
-	if held := inv.QueryForTest(t, `select module from settings s where values <> '{}'
-		and module in (select name from module where manifest ? 'config')`); len(held) != 0 {
-		t.Fatalf("a layer of a module in the config form still holds values: %v", held)
-	}
-	after := toldEveryMachine(t, open, served, w.On)
-	for _, node := range fourMachines {
-		if after[node] != before[node] {
-			t.Errorf("%s is told something else after the move:\n%s\nwas:\n%s", node, after[node], before[node])
-		}
-	}
-	if listedAfter := effectiveEverywhere(t, open, w); !reflect.DeepEqual(listedAfter, listedBefore) {
-		t.Errorf("settings lists other values after the move:\n%v\nwas:\n%v", listedAfter, listedBefore)
-	}
-	// And config lists what settings listed: each module's resolved value on each machine is the value settings
-	// said before the move.
-	resolved, err := config.Resolved(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	for _, r := range resolved {
-		said, listed := listedBefore[r.Node+"."+r.Module+"."+r.Key]
-		if r.Source == "unset" {
-			if listed && said != nil {
-				t.Errorf("%s of %s on %s is unset in config, and settings said %v", r.Key, r.Module, r.Node, said)
-			}
-			continue
-		}
-		var v any
-		_ = json.Unmarshal(r.Value, &v)
-		if !listed || !reflect.DeepEqual(v, said) {
-			t.Errorf("config resolves %s of %s on %s as %v, and settings said %v", r.Key, r.Module, r.Node, v, said)
-		}
-	}
-
-	// The facts snapshot carries mesh-config's values for the merge gate, as each machine's layer of each module, and
-	// each machine's declaration composes to the digest it did before the move.
-	factsAfter, err := gatherFacts(ctx, open, "2.11.17")
-	if err != nil {
-		t.Fatal(err)
-	}
-	// Machines are named in a snapshot by stand-ins of its own; each is found by what it composes.
-	digests := func(f snapshotFacts) ([]string, string) {
-		var out []string
-		zone := ""
-		for _, m := range f.Machines {
-			out = append(out, m.Declaration.Digest)
-			for _, l := range m.Settings {
-				if l.Module == "nodered" {
-					zone = compactJSON(l.Values["time-zone"])
-				}
-			}
-		}
-		sort.Strings(out)
-		return out, zone
-	}
-	was, _ := digests(factsBefore)
-	now, zone := digests(factsAfter)
-	if zone != `"Europe/Brussels"` {
-		t.Errorf("the facts snapshot does not carry nodered's time zone from mesh-config: %s", zone)
-	}
-	if len(now) != len(fourMachines) || now[0] == "" || !reflect.DeepEqual(now, was) {
-		t.Errorf("the declarations in the facts snapshot are %v after the move, %v before", now, was)
-	}
-	for _, s := range factsAfter.Settings {
-		if _, isConfig := map[string]bool{"betterbird": true, "claude-code": true, "power": true, "xdg": true}[s.Module]; isConfig &&
-			len(s.Values) > 0 {
-			t.Errorf("the facts snapshot still carries the whole mesh's layer of %s: %v", s.Module, s.Values)
-		}
-	}
-
-	config.sets = nil
-	again, err := runConfigMove(ctx, inv, config, true, "the move of config, run by a test", "again")
-	if err != nil || len(config.sets) != 0 || len(again.Moved) != 0 {
-		t.Fatalf("asked again, the move set %v and says %+v (%v)", config.sets, again, err)
-	}
-	if after := toldEveryMachine(t, open, served, w.On); !reflect.DeepEqual(after, before) {
-		t.Fatal("the move asked again changed what a machine is told")
-	}
-}
-
-func TestTheMoveOfConfigRefusesWhatWouldChangeAMachine(t *testing.T) {
-	open, _, _ := aConfiguredMesh(t)
-	ctx := t.Context()
-	readBackTries = 0
-	t.Cleanup(func() { readBackTries = 15 })
-	inv := open.inventory
-	config := &standInMeshConfig{open: open, values: map[string]any{}}
-	inv.ReadsConfigFrom(config.laid)
-
-	inv.ExecForTest(t, `update settings set values = values || '{"endpoints": {"web": {"reach": "public"}}}'
-		where module = 'nodered'`)
-	inv.ExecForTest(t, `update settings set values = values || '{"colour": "blue"}' where module = 'unifi'`)
-	inv.ExecForTest(t, `update settings set values = '{"font-size": 900}' where module = 'dunst'`)
-	answer, err := runConfigMove(ctx, inv, config, true, "a test", "release 57 is delivered")
-	if err == nil || answer.Switched || len(config.sets) > 0 {
-		t.Fatalf("the move went ahead: %+v (%v), set %v", answer, err, config.sets)
-	}
-	for _, want := range []string{"nodered on anchor still holds placement (endpoints): run move-placement first",
-		`unifi on anchor says "colour", which unifi does not declare`, "font-size at dunst's own value on workstation"} {
-		if !strings.Contains(err.Error(), want) {
-			t.Errorf("the refusal does not say %q: %v", want, err)
-		}
-	}
-	inv.ExecForTest(t, `update settings set values = values - 'endpoints' where module = 'nodered'`)
-	inv.ExecForTest(t, `update settings set values = values - 'colour' where module = 'unifi'`)
-	inv.ExecForTest(t, `update settings set values = '{"font-size": 13, "width": 500}' where module = 'dunst'`)
-
-	// Set in mesh-config before the move, on a module whose layers say nothing of it: the switch would lay it.
-	config.values["module.anchor.grafana."+movedKeys(func() map[string]catalogue.SettingDeclaration {
-		shelf, _ := inv.Catalogue(ctx)
-		return shelf["grafana"].Settings
-	}())[0]] = "set before the move"
-	answer, err = runConfigMove(ctx, inv, config, true, "a test", "release 57 is delivered")
-	if err == nil || !strings.Contains(err.Error(), "grafana on anchor resolves") || answer.Switched {
-		t.Fatalf("a value no layer says was laid by the switch: %+v (%v)", answer, err)
-	}
-	if moved, _ := inv.ConfigMoved(ctx); moved.Moved {
-		t.Fatal("the switch is on after a refused move")
-	}
-	if held := inv.QueryForTest(t, `select count(*) from settings where values <> '{}'`); held[0][0] == "0" {
-		t.Fatal("a refused move emptied the layers")
-	}
-}
-
-func TestTheSettingsVerbForwardsToConfigOnceTheValuesMoved(t *testing.T) {
-	open, w, served := aConfiguredMesh(t)
-	ctx := t.Context()
-	inv := open.inventory
-	readBackTries = 0
-	t.Cleanup(func() { readBackTries = 15 })
-	config := &standInMeshConfig{open: open, values: map[string]any{}}
-	inv.ReadsConfigFrom(config.laid)
-	savedRead, savedAsk := readConfigValues, configAsk
-	readConfigValues, configAsk = config.laid, config.ask
-	t.Cleanup(func() { readConfigValues, configAsk = savedRead, savedAsk })
-	if _, err := runConfigMove(ctx, inv, config, true, "a test", "release 57 is delivered"); err != nil {
-		t.Fatal(err)
-	}
-
-	shown := stdoutOf(t, func() error { return settingsCommand(ctx, []string{"show", "nodered", "--node", "anchor"}) })
-	for _, want := range []string{`"time-zone": "Europe/Brussels"`, `time-zone = "Europe/Brussels"  (module)`,
-		"mesh-config.config", `"mqtt": {`} {
-		if !strings.Contains(shown, want) {
-			t.Errorf("settings show does not say %q:\n%s", want, shown)
-		}
-	}
-	if strings.Contains(shown, "timeZone") {
-		t.Errorf("settings show still says the file's name:\n%s", shown)
-	}
-
-	config.asked = nil
-	said := stdoutOf(t, func() error {
-		return settingsCommand(ctx, []string{"set", "dunst", `{"font-size": 12, "width": 500}`, "--node", "workstation"})
-	})
-	if config.values["module.workstation.dunst.font-size"] != float64(12) || !strings.Contains(said, "~ font-size") ||
-		containsString(config.asked, "set module.workstation.dunst.width") {
-		t.Fatalf("settings set reached mesh-config as %v (%v):\n%s", config.values, config.asked, said)
-	}
-	told := toldEveryMachine(t, open, served, w.On)["workstation"]
-	if !strings.Contains(told, "12") {
-		t.Error("the workstation is not told the font size set through settings")
-	}
-	if err := settingsCommand(ctx, []string{"set", "dunst", `{"font-size": 12}`, "--node", "workstation"}); err == nil ||
-		!strings.Contains(err.Error(), "would no longer set width") {
-		t.Fatalf("a set dropping a value without --replace: %v", err)
-	}
-	if err := settingsCommand(ctx, []string{"set", "dunst", `{"font-size": 12}`}); err == nil ||
-		!strings.Contains(err.Error(), "no own value for the whole mesh") {
-		t.Fatalf("a module value for the whole mesh: %v", err)
-	}
-
-	t.Setenv(verbVar, "settings")
-	for _, c := range []struct{ module, node, values, key, held, why string }{
-		// A file root reads: refused as before the move (novox/hq issue 339).
-		{"hostname", "anchor", `{"hostname": "elsewhere"}`, "module.anchor.hostname.hostname", "Ace", "issue 339"},
-		{"messenger", "laptop", `{"desktop-machines": ["g14", "shanks"], "time-zone": "UTC"}`,
-			"module.laptop.messenger.time-zone", "Europe/Brussels", "issue 339"},
-	} {
-		err := settingsCommand(ctx, []string{"set", c.module, c.values, "--node", c.node})
-		if err == nil || !strings.Contains(err.Error(), c.why) || config.values[c.key] != c.held {
-			t.Fatalf("a trusted value of %s through a verb: %v, holds %v", c.module, err, config.values[c.key])
-		}
-	}
-	// And a trusted value no file makes the terminal's is refused as trusted, since mesh-config takes the controller's
-	// word for it (ADR 0348 §8).
-	if err := refuseTrustedThroughAVerb(ctx, inv, "messenger", "laptop", []string{"time-zone"}); err == nil ||
-		!strings.Contains(err.Error(), "ADR 0348 §8") {
-		t.Fatalf("a trusted value through a verb: %v", err)
-	}
-	if err := refuseTrustedThroughAVerb(ctx, inv, "dunst", "workstation", []string{"width"}); err != nil {
-		t.Fatalf("a value nobody trusts through a verb: %v", err)
-	}
-	stdoutOf(t, func() error {
-		return settingsCommand(ctx, []string{"set", "dunst", `{"font-size": 12, "width": 600}`, "--node", "workstation"})
-	})
-	if config.values["module.workstation.dunst.width"] != float64(600) {
-		t.Fatalf("a value nobody trusts was not set through a verb: %v", config.values["module.workstation.dunst.width"])
-	}
-	t.Setenv(verbVar, "")
-
-	stdoutOf(t, func() error { return settingsCommand(ctx, []string{"clear", "dunst", "--node", "workstation"}) })
-	for _, k := range []string{"font-size", "width"} {
-		if _, held := config.values["module.workstation.dunst."+k]; held {
-			t.Errorf("settings clear left dunst's %s on the workstation", k)
-		}
-	}
-
-	config.asked = nil
-	proposed := stdoutOf(t, func() error {
-		return settingsCommand(ctx, []string{"propose", "hostname", `{"hostname": "elsewhere"}`, "--node", "anchor"})
-	})
-	if !containsString(config.asked, "propose module.anchor.hostname.hostname") || !strings.Contains(proposed, "p-1") {
-		t.Fatalf("settings propose reached mesh-config as %v:\n%s", config.asked, proposed)
-	}
-
-	config.asked = nil
-	kept := stdoutOf(t, func() error { return settingsCommand(ctx, []string{"show", "kernel", "--node", "laptop"}) })
-	if !strings.Contains(kept, "transparent-huge-pages") || len(config.asked) > 0 {
-		t.Fatalf("a module in the settings form is shown as %q, asking mesh-config %v", kept, config.asked)
-	}
-}
-
-func TestAnApprovalRaisedBeforeTheMoveOfConfigIsRefusedAfterIt(t *testing.T) {
-	open, _, _ := aConfiguredMesh(t)
-	ctx := t.Context()
-	readBackTries = 0
-	t.Cleanup(func() { readBackTries = 15 })
-	inv := open.inventory
-	config := &standInMeshConfig{open: open, values: map[string]any{}}
-	inv.ReadsConfigFrom(config.laid)
-	shelf, err := inv.Catalogue(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	key := movedKeys(func() map[string]catalogue.SettingDeclaration { return shelf["grafana"].Settings }())[0]
-	values := map[string]any{key: "raised before the move"}
-	p := settingsProposal{Module: "grafana", Node: "anchor", Values: values, From: "g14/claude-code", At: time.Now(),
-		Digest: layerDigest(values), BeforeDigest: layerDigest(nil)}
-	if _, has, err := inv.Layer(ctx, "anchor", "grafana"); err != nil || has {
-		t.Fatalf("grafana has a layer on anchor before the test: %v %v", has, err)
-	}
-	if moved, err := runConfigMove(ctx, inv, config, true, "a test", "release 57 is delivered"); err != nil || !moved.Switched {
-		t.Fatalf("the move says %+v (%v)", moved, err)
-	}
-	if reads, err := inv.ReadsConfig(ctx, "grafana"); err != nil || !reads {
-		t.Fatalf("grafana does not read config after the move: %v %v", reads, err)
-	}
-	_, err = setLayerIn(open)(ctx, p, "s30", "approved by the operator")
-	if err == nil || !strings.Contains(err.Error(), "moved to mesh-config since the operator was shown the change") ||
-		!strings.Contains(err.Error(), "propose it again") {
-		t.Fatalf("the stale approval: %v", err)
-	}
-	if layer, has, err := inv.Layer(ctx, "anchor", "grafana"); err != nil || has && len(layer) > 0 {
-		t.Errorf("the refused approval wrote the layer: %v %v %v", layer, has, err)
-	}
-	if reads, err := inv.ReadsConfig(ctx, "grafana"); err != nil || !reads {
-		t.Errorf("the refused approval turned ReadsConfig off: %v %v", reads, err)
-	}
-}
-
-func TestAPlacementOnlyApprovalRaisedBeforeTheMoveIsSetAfterIt(t *testing.T) {
-	open, _, _ := aConfiguredMesh(t)
-	ctx := t.Context()
-	readBackTries = 0
-	t.Cleanup(func() { readBackTries = 15 })
-	inv := open.inventory
-	config := &standInMeshConfig{open: open, values: map[string]any{}}
-	inv.ReadsConfigFrom(config.laid)
-	values := map[string]any{catalogue.PlacesSetting: map[string]any{"data": "/srv/grafana-data"}}
-	p := settingsProposal{Module: "grafana", Node: "anchor", Values: values, From: "g14/claude-code", At: time.Now(),
-		Digest: layerDigest(values), BeforeDigest: layerDigest(nil)}
-	if _, has, err := inv.Layer(ctx, "anchor", "grafana"); err != nil || has {
-		t.Fatalf("grafana has a layer on anchor before the test: %v %v", has, err)
-	}
-	if moved, err := runConfigMove(ctx, inv, config, true, "a test", "release 57 is delivered"); err != nil || !moved.Switched {
-		t.Fatalf("the move says %+v (%v)", moved, err)
-	}
-	if _, err := setLayerIn(open)(ctx, p, "s31", "approved by the operator"); err != nil {
-		t.Fatalf("the placement-only approval after the move: %v", err)
-	}
-	if _, has, err := inv.Layer(ctx, "anchor", "grafana"); err != nil || !has {
-		t.Errorf("the approval did not set the layer: %v %v", has, err)
-	}
-	if reads, err := inv.ReadsConfig(ctx, "grafana"); err != nil || !reads {
-		t.Errorf("the approval turned ReadsConfig off: %v %v", reads, err)
-	}
-}