Require mesh-contracts/go at ae5266e77639, the group's final contracts head (issue 1966)

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

README.md

@@ -9,6 +9,15 @@ does not belong.* Per-module code (a service's API client, its tool implementati
 create-a-resource adapter) lives **in the module**, never here — that coupling is exactly what
 turned the old SDK into constant maintenance and made every edit rebuild every module.
 
+**A seat's code is not here** (novox/hq ADR 0625, ADR 0627). mesh-sdk is the runtime every module uses (the bus
+connection, the tools bundle's runtime, state and its helpers) and a seat-neutral part two or more seats' clients or
+holders share (sending a file in parts, `go/parts`). A seat defined whole has its generated contract, and its client
+where callers share logic over it, in mesh-contracts (`go/seats/<seat>`, `go/clients/<seat>client`); the seat list is
+mesh-contracts' `go/seats`, which `catalogue` alone imports. The value layouts of seats not yet defined whole stay
+here until their domain moves, and no new seat-specific type is added. `packages_list_test.go` holds all of it:
+mesh-sdk imports no contracts module but the seat set in `catalogue`, names none of the seats with a client outside
+`catalogue`, and holds none of the packages that moved (`asks`, `asker`, `publish`).
+
 ## What is in it
 
 Five small areas, each a thing a module's `tools/` or `provisioner/` imports:
@@ -106,21 +115,20 @@ runtime's (`node-tools/internal/launch`, mesh-tools).
 values and then every change. Through the runtime that launched the bundle, which refuses what the
 module did not declare. Current values, never history and never a secret (novox/hq ADR 0201).
 
-### `seats` and `asks` — asking a person, answering on a channel (Go)
+### `seats` and `channel` — publishing on a seat, the channel's benches (Go)
 A seat may name its caller or its kind (novox/hq ADR 0259): `stdio.SeatPublish` submits an accept or says
 an event under the module's own name or kind, `stdio.SeatTake` takes a held seat's work, `stdio.SeatProve`
 and `stdio.SeatAnswer` carry a proof (a code typed by a person, by request and reply, never kept),
 `stdio.SeatRecord` reads a record kept for the module, and `State(...).Create` and `.Update` write by
-compare-and-set. The runtime does each only as far as the module's membership lists. `go/asks` is the
-contract on top: the `Ask` an asker publishes and the checks it is held to (its `Whole` is what a channel that proves
-who answers shows in place of its `Explanation`, and its `Details` what the Details answer shows, hq issue 383), the `Warrant` it acts on
-(`For`, `Says`), and the `Message`, `Choice`, `LinkAsked` and `Code` a channel takes and says, with the
-subjects each travels on.
-`go/asker` is an asking module's client (ADR 0259 §10): `Ask` keeps an ask in the module's own state and then
-publishes it under the module's name; `Cancel`; `Where` reads its state from the router's record; `Listen` and
-`Take` hand the module each warrant once — marked acted on by compare-and-set before the module acts, and only
-for an ask it made, an option it offered, at that option's level, before it expired. A lost compare-and-set is
-`stdio.ErrChanged`, told by the runtime's error code.
+compare-and-set. The runtime does each only as far as the module's membership lists. `go/channel` holds the
+shapes of the two benches a channel holds, `channel` and `intake` (the `Message` a channel takes, the `Choice`,
+`LinkAsked`, `Failed`, `Standing` and `Code` it says, with the subjects each travels on): those benches are not
+defined whole, so their layouts stay here (ADR 0625 §9).
+Asking a person is the `operator-channel` seat's, defined whole in mesh-contracts: its `Ask` and `Warrant` are its
+generated contract (`go/seats/operatorchannel`), and the checks an ask is held to, the warrant's (`For`, `Says`,
+`Performs`) and an asking module's client (`Ask`, `Cancel`, `Where`, `Listen`, `Take`, each warrant handed once,
+marked acted on by compare-and-set) are its client, `go/clients/operatorchannelclient` (ADR 0627 §1). A lost
+compare-and-set is `stdio.ErrChanged`, told by the runtime's error code.
 `State(...).Increment(key, attempts)` is a counter on top of the two (for numbers handed out once, such as an
 issue's): it reads the key, writes one more at the revision read, and on a lost write reads and tries again, at
 most `attempts` times; past that it is `stdio.ErrChanged` and nothing was counted.

go/asker/asker.go

@@ -1,196 +0,0 @@
-// Package asker is a module's client for asking a person (novox/hq ADR 0259 §10): it publishes an ask under
-// the module's own name, cancels it, reads its state from the router's record, and hands the module each
-// warrant once — only one for an ask it made, for an option it offered, at that option's level, before it
-// expired. The module then acts with its own grants.
-//
-// It keeps what it asked, and which warrants it acted on, in a state of the module's own (declared in its
-// manifest, by default `asked`): the ask is written before it is published, and a warrant is marked acted on
-// by compare-and-set before the module's handler runs, so a redelivery, or a second instance, acts once.
-package asker
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"strings"
-	"time"
-
-	stdio "git.novox.be/novox/mesh-sdk/go"
-	"git.novox.be/novox/mesh-sdk/go/asks"
-)
-
-// Client asks as one module.
-type Client struct {
-	// Module is the asking module's name: the one the bus grants its asks under.
-	Module string
-	// State is the module's own state the asks are kept in.
-	State Store
-	// Now is the clock; nil is time.Now.
-	Now func() time.Time
-	// Publish, Record and Subscribe reach the bus; nil is the stdio SDK's, through the module's runtime.
-	Publish   func(subject string, body any, id string) error
-	Record    func(key string) (*stdio.StateEntry, error)
-	Subscribe func(pattern string, handle func(stdio.Envelope) error) error
-}
-
-// Store is where the asks are kept: stdio.State(name) is one.
-type Store interface {
-	Get(key string) (*stdio.StateEntry, error)
-	Create(key string, value any) (uint64, error)
-	Update(key string, value any, revision uint64) (uint64, error)
-}
-
-// New is a client for the module the runtime serves, keeping its asks in the state named.
-func New(state string) *Client {
-	return &Client{Module: os.Getenv("MESH_MODULE"), State: stdio.State(state)}
-}
-
-func (c *Client) now() time.Time {
-	if c.Now != nil {
-		return c.Now()
-	}
-	return time.Now()
-}
-
-// Kept is one ask as the module keeps it.
-type Kept struct {
-	Ask    asks.Ask      `json:"ask"`
-	Asked  time.Time     `json:"asked"`
-	Acted  bool          `json:"acted,omitempty"`
-	Ended  asks.Outcome  `json:"ended,omitempty"`
-	Answer *asks.Warrant `json:"answer,omitempty"`
-}
-
-func key(id string) string { return "ask." + id }
-
-// Ask checks an ask, keeps it, and publishes it under the module's own name. An ask with an id already kept
-// is refused: a new question is a new id.
-func (c *Client) Ask(a asks.Ask) error {
-	if err := a.Check(c.now()); err != nil {
-		return err
-	}
-	if _, err := c.State.Create(key(a.ID), Kept{Ask: a, Asked: c.now()}); err != nil {
-		if errors.Is(err, stdio.ErrChanged) {
-			return fmt.Errorf("an ask %s was already made: a new question is a new id", a.ID)
-		}
-		return err
-	}
-	return c.publish(asks.AskSubject(c.Module), a, a.ID)
-}
-
-// Cancel takes an ask back: the router ends it and edits every copy.
-func (c *Client) Cancel(id string) error {
-	return c.publish(asks.CancelSubject(c.Module), map[string]string{"id": id}, "cancel."+id)
-}
-
-func (c *Client) publish(subject string, body any, id string) error {
-	if c.Publish != nil {
-		return c.Publish(subject, body, id)
-	}
-	return stdio.SeatPublish(subject, body, id)
-}
-
-// Where is an ask's state as the router keeps it: its state and its warrant, if any — read under the
-// module's own name and no other's.
-func (c *Client) Where(id string) (state string, w *asks.Warrant, err error) {
-	read := c.Record
-	if read == nil {
-		read = func(k string) (*stdio.StateEntry, error) { return stdio.SeatRecord("", k) }
-	}
-	e, err := read(id)
-	if err != nil || e == nil {
-		return "", nil, err
-	}
-	var rec struct {
-		State   string        `json:"state"`
-		Warrant *asks.Warrant `json:"warrant"`
-	}
-	if err := json.Unmarshal(e.Value, &rec); err != nil {
-		return "", nil, fmt.Errorf("the router's record of %s cannot be read: %w", id, err)
-	}
-	return rec.State, rec.Warrant, nil
-}
-
-// Handled is what came of a warrant: acted on, refused (and why), or already done.
-type Handled string
-
-const (
-	Acted    Handled = "acted"
-	Refused  Handled = "refused"
-	Done     Handled = "already acted on"
-	Recorded Handled = "ended without a choice"
-)
-
-// Take hands act a warrant once, after holding it to the ask it answers. act performs the option with the
-// module's own grants; its error is said and the warrant stays acted on (a person's decision is not
-// performed twice; the module says the failure in its own record).
-func (c *Client) Take(w asks.Warrant, act func(asks.Option, asks.Warrant) error) (Handled, error) {
-	if w.Asker != c.Module {
-		return Refused, fmt.Errorf("a warrant for %s reached %s", w.Asker, c.Module)
-	}
-	e, err := c.State.Get(key(w.Ask))
-	if err != nil {
-		return "", err
-	}
-	if e == nil {
-		return Refused, fmt.Errorf("%s holds no ask %s", c.Module, w.Ask)
-	}
-	var k Kept
-	if err := json.Unmarshal(e.Value, &k); err != nil {
-		return "", err
-	}
-	if k.Acted || k.Ended != "" {
-		return Done, nil
-	}
-	if w.Outcome != asks.OutcomeChosen {
-		k.Ended = w.Outcome
-		k.Answer = &w
-		if _, err := c.State.Update(key(w.Ask), k, e.Revision); err != nil && !errors.Is(err, stdio.ErrChanged) {
-			return "", err
-		}
-		return Recorded, nil
-	}
-	o, err := w.For(c.Module, k.Ask)
-	if err != nil {
-		return Refused, err
-	}
-	// Marked before acting: of two deliveries, or two instances, only the one whose write stands acts.
-	k.Acted, k.Ended, k.Answer = true, asks.OutcomeChosen, &w
-	if _, err := c.State.Update(key(w.Ask), k, e.Revision); err != nil {
-		if errors.Is(err, stdio.ErrChanged) {
-			return Done, nil
-		}
-		return "", err
-	}
-	return Acted, act(o, w)
-}
-
-// Listen hands every warrant for this module to Take, with act. It asks the runtime for the module's
-// events matching the router's `decided` subject for this module.
-func (c *Client) Listen(act func(asks.Option, asks.Warrant) error, said func(Handled, asks.Warrant, error)) error {
-	subscribe := c.Subscribe
-	if subscribe == nil {
-		subscribe = stdio.Subscribe
-	}
-	return subscribe(asks.Seat+".decided."+c.Module, func(e stdio.Envelope) error {
-		if !strings.HasPrefix(e.Key, asks.Seat+".decided.") {
-			return nil
-		}
-		var w asks.Warrant
-		if err := json.Unmarshal(e.Body, &w); err != nil {
-			if said != nil {
-				said(Refused, w, fmt.Errorf("a warrant could not be read: %w", err))
-			}
-			return nil
-		}
-		h, err := c.Take(w, act)
-		if h == "" && err != nil {
-			return err // the state could not be reached: offered again
-		}
-		if said != nil {
-			said(h, w, err)
-		}
-		return nil
-	})
-}

go/asker/asker_test.go

@@ -1,141 +0,0 @@
-package asker
-
-import (
-	"encoding/json"
-	"strings"
-	"testing"
-	"time"
-
-	stdio "git.novox.be/novox/mesh-sdk/go"
-	"git.novox.be/novox/mesh-sdk/go/asks"
-)
-
-type mem struct {
-	vals map[string]json.RawMessage
-	revs map[string]uint64
-	n    uint64
-}
-
-func (m *mem) Get(k string) (*stdio.StateEntry, error) {
-	v, ok := m.vals[k]
-	if !ok {
-		return nil, nil
-	}
-	return &stdio.StateEntry{Key: k, Value: v, Revision: m.revs[k]}, nil
-}
-func (m *mem) Create(k string, v any) (uint64, error) {
-	if _, ok := m.vals[k]; ok {
-		return 0, stdio.ErrChanged
-	}
-	return m.put(k, v)
-}
-func (m *mem) Update(k string, v any, rev uint64) (uint64, error) {
-	if rev == 0 || m.revs[k] != rev {
-		return 0, stdio.ErrChanged
-	}
-	return m.put(k, v)
-}
-func (m *mem) put(k string, v any) (uint64, error) {
-	raw, _ := json.Marshal(v)
-	m.n++
-	m.vals[k], m.revs[k] = raw, m.n
-	return m.n, nil
-}
-
-var now = time.Date(2026, 10, 8, 14, 0, 0, 0, time.UTC)
-
-func client() (*Client, map[string][]string) {
-	sent := map[string][]string{}
-	c := &Client{Module: "mesh-delivery", State: &mem{vals: map[string]json.RawMessage{}, revs: map[string]uint64{}},
-		Now: func() time.Time { return now },
-		Publish: func(subject string, body any, id string) error {
-			sent[subject] = append(sent[subject], id)
-			return nil
-		}}
-	return c, sent
-}
-
-// releaseHQ is the act the ask's one option binds.
-var releaseHQ = map[string]string{"verb": "release", "delivery": "hq"}
-
-func held() asks.Ask {
-	binds, _ := asks.ActDigest(releaseHQ)
-	return asks.Ask{ID: "d-1", Headline: "Delivery of hq held", Explanation: "Needs you: release it, or stop it.",
-		Who: asks.Operator, Expires: now.Add(time.Hour), OnExpiry: "the delivery stays held",
-		Options: []asks.Option{{ID: "release", Label: "Release", Does: "it goes on", Level: asks.Approve, Binds: binds}}}
-}
-
-func warrant() asks.Warrant {
-	return asks.Warrant{Ask: "d-1", Asker: "mesh-delivery", Outcome: asks.OutcomeChosen, Option: "release",
-		Label: "Release", Level: asks.Approve, At: now.Add(time.Minute), AskDigest: held().Digest(),
-		By: &asks.Person{Who: asks.Operator, Kind: "telegram", Identity: "42", Verified: "user id verified"}}
-}
-
-func TestAnAskIsKeptThenPublishedUnderTheModulesOwnName(t *testing.T) {
-	c, sent := client()
-	if err := c.Ask(held()); err != nil {
-		t.Fatal(err)
-	}
-	if got := sent[asks.AskSubject("mesh-delivery")]; len(got) != 1 || got[0] != "d-1" {
-		t.Fatalf("%v", sent)
-	}
-	if err := c.Ask(held()); err == nil || !strings.Contains(err.Error(), "already made") {
-		t.Errorf("the same id was asked twice: %v", err)
-	}
-	bad := held()
-	bad.Who = "agent"
-	if err := c.Ask(bad); err == nil {
-		t.Error("an ask the contract refuses was published")
-	}
-}
-
-func TestAWarrantIsActedOnOnceAndOnlyForItsOwnAsk(t *testing.T) {
-	c, _ := client()
-	_ = c.Ask(held())
-	acted := 0
-	act := func(o asks.Option, _ asks.Warrant) error {
-		if err := o.Performs(releaseHQ); err != nil {
-			t.Errorf("the bound act: %v", err)
-		}
-		acted++
-		return nil
-	}
-	if h, err := c.Take(warrant(), act); h != Acted || err != nil || acted != 1 {
-		t.Fatalf("%s %v %d", h, err, acted)
-	}
-	if h, _ := c.Take(warrant(), act); h != Done || acted != 1 {
-		t.Errorf("a redelivery was acted on: %s", h)
-	}
-	for why, change := range map[string]func(*asks.Warrant){
-		"another asker":         func(w *asks.Warrant) { w.Asker = "mesh-controller" },
-		"an ask not made":       func(w *asks.Warrant) { w.Ask = "d-9" },
-		"another level":         func(w *asks.Warrant) { w.Level = asks.Acknowledge },
-		"an option not offered": func(w *asks.Warrant) { w.Option = "delete" },
-		"after its expiry":      func(w *asks.Warrant) { w.At = now.Add(2 * time.Hour) },
-		"another ask's digest":  func(w *asks.Warrant) { w.AskDigest = "sha256:00" },
-	} {
-		c2, _ := client()
-		_ = c2.Ask(held())
-		w := warrant()
-		change(&w)
-		if h, _ := c2.Take(w, act); h == Acted {
-			t.Errorf("a warrant from %s was acted on", why)
-		}
-	}
-	if acted != 1 {
-		t.Errorf("acted %d times", acted)
-	}
-}
-
-func TestAnAskEndedWithoutAChoiceIsRecordedAndNothingDone(t *testing.T) {
-	c, _ := client()
-	_ = c.Ask(held())
-	w := warrant()
-	w.Outcome, w.Option, w.By = asks.OutcomeExpired, "", nil
-	if h, err := c.Take(w, func(asks.Option, asks.Warrant) error { t.Fatal("acted"); return nil }); h != Recorded || err != nil {
-		t.Fatalf("%s %v", h, err)
-	}
-	if h, _ := c.Take(warrant(), func(asks.Option, asks.Warrant) error { t.Fatal("acted after it ended"); return nil }); h != Done {
-		t.Errorf("%s", h)
-	}
-}

go/asks/asks.go

@@ -1,578 +0,0 @@
-// Package asks is the contract of asking a person and answering on a channel (novox/hq ADR 0259): the
-// shapes an asker, the router and a channel exchange on the bus, and the subjects they travel on. No
-// transport and no channel's service: an asker publishes an Ask under its own name and acts on the Warrant
-// it hears; the router holds the ask, sends channels a Message, and judges the Choice a channel says; a
-// channel shows a Message and says what was chosen and by whom, as its service authenticated it.
-package asks
-
-import (
-	"crypto/sha256"
-	"encoding/hex"
-	"errors"
-	"fmt"
-	"regexp"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-)
-
-// The seats (novox/hq ADR 0259 §3).
-const (
-	// Seat is held by the router: an ask and its cancel are its accepts, a warrant its event, each named by
-	// the asker.
-	Seat = "operator-channel"
-	// ChannelSeat is the kinded bench a channel holds to show and say: its accepts carry the kind.
-	ChannelSeat = "channel"
-	// IntakeSeat is the kinded bench a channel holds to say what was chosen: its events and proofs carry
-	// the kind.
-	IntakeSeat = "intake"
-)
-
-// AskSubject is where an asker publishes an ask, CancelSubject its cancel, and DecidedSubject where it
-// hears the warrant, or the ask's end without one.
-func AskSubject(asker string) string     { return "mesh.seat." + Seat + ".accept.ask." + asker }
-func CancelSubject(asker string) string  { return "mesh.seat." + Seat + ".accept.cancel." + asker }
-func DecidedSubject(asker string) string { return "mesh.seat." + Seat + ".event.decided." + asker }
-
-// The work a channel takes, on ChannelSubject.
-const (
-	Show = "show" // a message offering answers
-	Edit = "edit" // a message shown before, replaced
-	Send = "send" // a message offering nothing
-)
-
-// ChannelSubject is where the router sends a channel of a kind its work.
-func ChannelSubject(verb, kind string) string {
-	return "mesh.seat." + ChannelSeat + ".accept." + verb + "." + kind
-}
-
-// What a channel says, on IntakeSubject.
-const (
-	Chosen = "choice" // a button tapped
-	Link   = "link"   // somebody asked to be linked as the operator
-)
-
-// IntakeSubject is where a channel of a kind says what arrived.
-func IntakeSubject(what, kind string) string {
-	return "mesh.seat." + IntakeSeat + ".event." + what + "." + kind
-}
-
-// CodeProof is the one proof verb: a code the operator typed, carried by request and reply, never kept.
-const CodeProof = "code"
-
-// ProofSubject is where a channel of a kind asks a proof.
-func ProofSubject(verb, kind string) string {
-	return "mesh.seat." + IntakeSeat + ".proof." + verb + "." + kind
-}
-
-// A Level is how much proof an option's answer needs (novox/hq ADR 0234 §8, the glossary's assurance level).
-type Level string
-
-const (
-	// Acknowledge performs only what any granted principal may already do: silencing, details. No proof.
-	Acknowledge Level = "acknowledge"
-	// Approve needs one proof: a verified sender (a linked account, linked an hour or more) or a code.
-	Approve Level = "approve"
-	// Destroy needs two proofs, one of them a code.
-	Destroy Level = "destroy"
-)
-
-// Rank orders the levels; an unknown level ranks above every known one, so it is never taken as less.
-func (l Level) Rank() int {
-	switch l {
-	case Acknowledge:
-		return 0
-	case Approve:
-		return 1
-	case Destroy:
-		return 2
-	}
-	return 3
-}
-
-// Operator is the one role an ask may be answered by today.
-const Operator = "operator"
-
-// Option is one answer an ask offers: a label for the button, what it does in plain words, its level.
-type Option struct {
-	ID    string `json:"id"`
-	Label string `json:"label"`
-	Does  string `json:"does"`
-	Level Level  `json:"level"`
-	// Binds is the digest of exactly what the asker performs when this option is chosen — the verb, the
-	// machine and every argument — as ActDigest gives it. It travels in the ask, so the router's warrant,
-	// which names the ask's digest, names it too: a warrant then authorises that act and no other, and an
-	// asker whose record of the act changed after it asked finds the digests differ and does nothing.
-	// Required on an option above acknowledge.
-	Binds string `json:"binds,omitempty"`
-}
-
-// An Act is what an option binds: named fields, each a string — the verb, the machine, the level, and each
-// argument under a name of its own ("arg.delivery"). Flat on purpose: its digest is over these names and
-// values alone, never over how a language happens to encode a struct.
-type Act map[string]string
-
-// ActDigest is the digest an asker puts in Option.Binds: SHA-256 over the act's canonical encoding (canonical),
-// written "sha256:<hex>". The same names and values give the same digest in any language, whatever order
-// they were set in; a field renamed, added or emptied gives another.
-func ActDigest(act Act) (string, error) {
-	if len(act) == 0 {
-		return "", fmt.Errorf("the act cannot be digested: it names nothing")
-	}
-	keys := make([]string, 0, len(act))
-	for k := range act {
-		if k == "" {
-			return "", fmt.Errorf("the act cannot be digested: a field has no name")
-		}
-		keys = append(keys, k)
-	}
-	sort.Strings(keys)
-	var b strings.Builder
-	b.WriteString("novox.act.v1\n")
-	for _, k := range keys {
-		canonical(&b, k)
-		canonical(&b, act[k])
-	}
-	sum := sha256.Sum256([]byte(b.String()))
-	return "sha256:" + hex.EncodeToString(sum[:]), nil
-}
-
-// canonical writes one value as its length in bytes, a colon, the bytes and a newline: no value can be read
-// as another's end or start, so two different sequences of values never encode the same.
-func canonical(b *strings.Builder, v string) {
-	b.WriteString(strconv.Itoa(len(v)))
-	b.WriteByte(':')
-	b.WriteString(v)
-	b.WriteByte('\n')
-}
-
-// Digest is the digest of the ask exactly as its asker published it: its id, words, options with what each
-// binds, who answers, and its expiry. The router puts it in the warrant (Warrant.AskDigest), and an asker
-// acts only on a warrant whose digest is that of the ask it keeps — so a warrant answers one ask, as the
-// person was shown it, and nothing published under the same id before or after.
-//
-// It is over the ask's named fields in a fixed order, each written canonically, and the expiry as UTC
-// RFC 3339 to the nanosecond — never over a language's encoding of the struct, so a field added to Ask
-// later changes no digest until it is added here, on purpose. Whole and Details (novox/hq issue 383) follow
-// the options only when the ask gives either: an ask without them digests as it did before they existed, so
-// a router and an asker of different builds still agree on every such ask.
-func (a Ask) Digest() string {
-	var b strings.Builder
-	b.WriteString("novox.ask.v1\n")
-	for _, v := range []string{a.ID, a.Headline, a.Explanation, a.Who,
-		a.Expires.UTC().Format(time.RFC3339Nano), a.OnExpiry, a.About, strconv.FormatBool(a.Urgent),
-		strconv.Itoa(len(a.Options))} {
-		canonical(&b, v)
-	}
-	for _, o := range a.Options {
-		for _, v := range []string{o.ID, o.Label, o.Does, string(o.Level), o.Binds} {
-			canonical(&b, v)
-		}
-	}
-	// Whole and Details are written whenever either or WholeDetails is given, and WholeDetails after them whenever
-	// it is given (novox/hq ADR 0347): the fields after the options are then always one of three fixed shapes —
-	// none, the two, or the three — and the count of values the sequence holds tells them apart, so no two asks
-	// encode the same (the review of mesh-sdk #25). An ask with none of them digests as before they existed, and
-	// one without WholeDetails as before it existed.
-	if a.Whole != "" || a.Details != "" || a.WholeDetails != "" {
-		canonical(&b, a.Whole)
-		canonical(&b, a.Details)
-	}
-	if a.WholeDetails != "" {
-		canonical(&b, a.WholeDetails)
-	}
-	sum := sha256.Sum256([]byte(b.String()))
-	return "sha256:" + hex.EncodeToString(sum[:])
-}
-
-// Ask is a request for a person's word (novox/hq ADR 0259 §4).
-type Ask struct {
-	// ID is the asker's own, unique to it.
-	ID string `json:"id"`
-	// Headline names the thing and what is wrong, in a few plain words; Explanation is what happened and
-	// what it means. Both are held to the plain rule and the content rule by the router.
-	Headline    string   `json:"headline"`
-	Explanation string   `json:"explanation"`
-	Options     []Option `json:"options"`
-	// Who may answer: Operator.
-	Who string `json:"who"`
-	// Expires is when the ask ends unanswered; OnExpiry is what the asker then does, in words the person
-	// is shown ("the delivery stays held"). An ask that authorises never defaults.
-	Expires  time.Time `json:"expires"`
-	OnExpiry string    `json:"on-expiry"`
-	// About is what the ask is about (a condition's key): a newer ask about it replaces the older.
-	About  string `json:"about,omitempty"`
-	Urgent bool   `json:"urgent,omitempty"`
-	// Whole is the explanation with its exact values whole, shown in place of Explanation on a channel kind
-	// that proves who answers (verified-sender) and carries the ask's answers (novox/hq issue 383): what the
-	// person approves — a mount point, a share, a private address — must be readable where they approve it.
-	// The asker withholds a value shaped like a secret in it, and the router refuses the ask when one is left;
-	// Explanation stays under the whole content rule everywhere else. Empty, Explanation is shown everywhere.
-	Whole string `json:"whole,omitempty"`
-	// Details are the ask's secondary words, line by line under the content rule: who proposed it, a
-	// fingerprint, how to read it whole. The router shows them in the note of the ask's own message
-	// (Message.Note), after what the ask's options do and when it expires — never in its body (novox/hq
-	// issue 639).
-	Details string `json:"details,omitempty"`
-	// WholeDetails are the Details with their exact values whole, shown in place of Details where Whole is shown
-	// in place of the explanation (a kind that proves who answers, given the ask's answers): every value an
-	// approval sets, whole, so the person reads exactly what they approve (novox/hq issue 383). Held, like
-	// Whole, to the secret rule alone; the router refuses the ask when a secret's shape is left in it. Empty,
-	// Details are shown everywhere.
-	WholeDetails string `json:"whole-details,omitempty"`
-}
-
-// What an ask's explanation is held to, so it reads at a glance on a phone (novox/hq issue 639): a summary
-// of two or three short sentences on its first line — what changes, why, what it costs or risks — then at
-// most three points, a line each, only where they add something. Whole is held to the same. Who asked, when,
-// the fingerprint and how to read it whole are Details, never the explanation.
-const (
-	SummaryLength = 300
-	MostPoints    = 3
-	PointLength   = 160
-)
-
-// Glance says why an explanation does not read at a glance, or nil: its first line, the summary, longer than
-// SummaryLength; more than MostPoints lines after it; a point longer than PointLength. Blank lines are not
-// counted. An asker holds its asks to it in its own tests; the router says, without refusing, an ask that
-// does not hold to it.
-func Glance(explanation string) error {
-	var lines []string
-	for _, l := range strings.Split(explanation, "\n") {
-		if strings.TrimSpace(l) != "" {
-			lines = append(lines, strings.TrimSpace(l))
-		}
-	}
-	var problems []string
-	switch {
-	case len(lines) == 0:
-		problems = append(problems, "it has no summary")
-	case len([]rune(lines[0])) > SummaryLength:
-		problems = append(problems, fmt.Sprintf("its summary is %d characters, more than %d", len([]rune(lines[0])), SummaryLength))
-	}
-	if len(lines) > 1+MostPoints {
-		problems = append(problems, fmt.Sprintf("it has %d points after its summary, more than %d", len(lines)-1, MostPoints))
-	}
-	for i, l := range lines {
-		if i > 0 && len([]rune(l)) > PointLength {
-			problems = append(problems, fmt.Sprintf("its point %d is %d characters, more than %d", i, len([]rune(l)), PointLength))
-		}
-	}
-	if len(problems) > 0 {
-		return errors.New("the explanation does not read at a glance: " + strings.Join(problems, "; "))
-	}
-	return nil
-}
-
-// The bounds of an ask (novox/hq ADR 0234 §8, ADR 0259 §4).
-const (
-	MostOptions    = 4
-	MostOpen       = 3
-	ApproveLasts   = 24 * time.Hour
-	DestroyLasts   = 10 * time.Minute
-	HeadlineLength = 60
-	LabelLength    = 24
-)
-
-var usableID = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9_-]{0,63}$`)
-
-// UsableID says whether a name can be an ask's or an option's id: a key and a subject token both.
-func UsableID(id string) bool { return usableID.MatchString(id) }
-
-// Highest is the highest level among the ask's options.
-func (a Ask) Highest() Level {
-	high := Acknowledge
-	for _, o := range a.Options {
-		if o.Level.Rank() > high.Rank() {
-			high = o.Level
-		}
-	}
-	return high
-}
-
-// Option is the option of this id, or false.
-func (a Ask) Option(id string) (Option, bool) {
-	for _, o := range a.Options {
-		if o.ID == id {
-			return o, true
-		}
-	}
-	return Option{}, false
-}
-
-// Check is what an ask is held to before anything is shown: every refusal, in words its asker can act on.
-func (a Ask) Check(now time.Time) error {
-	var problems []string
-	say := func(format string, args ...any) { problems = append(problems, fmt.Sprintf(format, args...)) }
-	if !UsableID(a.ID) {
-		say("its id %q is not letters, digits, - and _, at most 64", a.ID)
-	}
-	if strings.TrimSpace(a.Headline) == "" || len([]rune(a.Headline)) > HeadlineLength {
-		say("its headline is empty or longer than %d characters", HeadlineLength)
-	}
-	if strings.TrimSpace(a.Explanation) == "" {
-		say("it explains nothing")
-	}
-	if a.Who != Operator {
-		say("it is answered by %q, and only the operator answers today", a.Who)
-	}
-	if len(a.Options) == 0 || len(a.Options) > MostOptions {
-		say("it offers %d options, and an ask offers one to %d", len(a.Options), MostOptions)
-	}
-	seen := map[string]bool{}
-	for _, o := range a.Options {
-		switch {
-		case !UsableID(o.ID):
-			say("an option's id %q is not letters, digits, - and _", o.ID)
-		case seen[o.ID]:
-			say("the option %s is offered twice", o.ID)
-		}
-		seen[o.ID] = true
-		if strings.TrimSpace(o.Label) == "" || len([]rune(o.Label)) > LabelLength {
-			say("the option %s's label is empty or longer than %d characters", o.ID, LabelLength)
-		}
-		if strings.TrimSpace(o.Does) == "" {
-			say("the option %s does not say what it does", o.ID)
-		}
-		if o.Level.Rank() > Destroy.Rank() {
-			say("the option %s has the level %q, which is none of acknowledge, approve, destroy", o.ID, o.Level)
-		}
-		if o.Level != Acknowledge && !strings.HasPrefix(o.Binds, "sha256:") {
-			say("the option %s authorises and does not bind what it performs (its binds is not an ActDigest)", o.ID)
-		}
-	}
-	if !a.Expires.After(now) {
-		say("it expires before it is asked")
-	}
-	switch a.Highest() {
-	case Approve:
-		if a.Expires.After(now.Add(ApproveLasts)) {
-			say("an ask that approves lasts at most %s", ApproveLasts)
-		}
-	case Destroy:
-		if a.Expires.After(now.Add(DestroyLasts)) {
-			say("an ask that destroys lasts at most %s", DestroyLasts)
-		}
-	}
-	if a.Highest() != Acknowledge && strings.TrimSpace(a.OnExpiry) == "" {
-		say("it does not say what happens when nobody answers, and an ask that authorises never defaults")
-	}
-	if a.About != "" && strings.ContainsAny(a.About, " \n") {
-		say("what it is about is a key, without spaces")
-	}
-	if len(problems) > 0 {
-		return errors.New("the ask is refused: " + strings.Join(problems, "; "))
-	}
-	return nil
-}
-
-// Outcome is how an ask ended.
-type Outcome string
-
-const (
-	OutcomeChosen    Outcome = "chosen"    // a person chose an option: a warrant
-	OutcomeExpired   Outcome = "expired"   // nobody answered in time
-	OutcomeCancelled Outcome = "cancelled" // its asker took it back
-	OutcomeReplaced  Outcome = "replaced"  // a newer ask about the same thing replaced it
-	OutcomeRefused   Outcome = "refused"   // it was never shown: Words says why
-)
-
-// Person is who chose, as the router verified them.
-type Person struct {
-	// Who is the role: Operator.
-	Who string `json:"who"`
-	// Kind is the channel kind they answered on, Identity their account on that service, Display the name
-	// the service shows, and Verified how the router knew it was them.
-	Kind     string `json:"kind"`
-	Identity string `json:"identity"`
-	Display  string `json:"display,omitempty"`
-	Verified string `json:"verified"`
-}
-
-// Warrant is the router's record that a person chose one option of one ask, or the ask's end without one
-// (novox/hq ADR 0259 §6). It carries no secret.
-type Warrant struct {
-	Ask     string  `json:"ask"`
-	Asker   string  `json:"asker"`
-	About   string  `json:"about,omitempty"`
-	Outcome Outcome `json:"outcome"`
-	// Option, Label and Level are the option chosen; By who chose it, Channel the module it came through,
-	// Proofs which proofs were present (P1, P2, P3).
-	Option  string    `json:"option,omitempty"`
-	Label   string    `json:"label,omitempty"`
-	Level   Level     `json:"level,omitempty"`
-	By      *Person   `json:"by,omitempty"`
-	Channel string    `json:"channel,omitempty"`
-	Proofs  []string  `json:"proofs,omitempty"`
-	At      time.Time `json:"at"`
-	// AskDigest is the digest of the ask as the router took it (Ask.Digest): the warrant answers that ask
-	// alone, with the options it bound.
-	AskDigest string `json:"ask-digest,omitempty"`
-	// Words are why an ask ended without a choice, or what refused it.
-	Words string `json:"words,omitempty"`
-}
-
-// Says is the warrant in the words an asker records with its act: "the operator, via telegram (user id
-// verified), chose Release".
-func (w Warrant) Says() string {
-	if w.Outcome != OutcomeChosen || w.By == nil {
-		return fmt.Sprintf("no person chose: the ask %s %s", w.Ask, w.Outcome)
-	}
-	via := w.By.Kind
-	if w.By.Verified != "" {
-		via += " (" + w.By.Verified + ")"
-	}
-	return fmt.Sprintf("the %s, via %s, chose %s", w.By.Who, via, w.Label)
-}
-
-// For checks a warrant against the ask its asker made: the same asker and ask, the same ask's digest (so the
-// same words, options and binds), a choice, an option the ask offered, at that option's level, before the
-// ask expired. An asker acts on nothing else, and then performs only what the option's Binds names.
-func (w Warrant) For(asker string, a Ask) (Option, error) {
-	if w.Asker != asker || w.Ask != a.ID {
-		return Option{}, fmt.Errorf("the warrant is for %s's ask %s, not %s's %s", w.Asker, w.Ask, asker, a.ID)
-	}
-	if w.Outcome != OutcomeChosen || w.By == nil || w.By.Who != a.Who {
-		return Option{}, fmt.Errorf("the ask %s ended %s; no person chose", a.ID, w.Outcome)
-	}
-	if d := a.Digest(); w.AskDigest != d {
-		return Option{}, fmt.Errorf("the warrant answers an ask whose digest is %q, and the ask %s kept here is %s: "+
-			"it was not the ask the person was shown", w.AskDigest, a.ID, d)
-	}
-	o, offered := a.Option(w.Option)
-	if !offered {
-		return Option{}, fmt.Errorf("the ask %s offered no option %s", a.ID, w.Option)
-	}
-	if w.Level != o.Level {
-		return Option{}, fmt.Errorf("the option %s is %s, and the warrant says %s", o.ID, o.Level, w.Level)
-	}
-	// A choice made after the ask expired is no answer to it, whatever the router said. An ask that says no
-	// expiry, or a warrant that says no time, is no answer either: neither can be shown to be in time (the
-	// confirmation review of 2026-10-09).
-	if a.Expires.IsZero() {
-		return Option{}, fmt.Errorf("the ask %s says no expiry, so no answer to it can be in time", a.ID)
-	}
-	if w.At.IsZero() {
-		return Option{}, fmt.Errorf("the warrant for the ask %s says no time it was given, so it cannot be shown to be in time", a.ID)
-	}
-	if w.At.After(a.Expires) {
-		return Option{}, fmt.Errorf("the warrant was given at %s, after the ask %s expired at %s",
-			w.At.UTC().Format(time.RFC3339), a.ID, a.Expires.UTC().Format(time.RFC3339))
-	}
-	return o, nil
-}
-
-// Performs checks that the act an asker is about to perform is the one the chosen option bound when it
-// asked: the act's digest equals the option's Binds. An acknowledge option that bound nothing passes.
-func (o Option) Performs(act Act) error {
-	if o.Binds == "" && o.Level == Acknowledge {
-		return nil
-	}
-	d, err := ActDigest(act)
-	if err != nil {
-		return err
-	}
-	if d != o.Binds {
-		return fmt.Errorf("the option %s bound %s, and the act about to be performed is %s: nothing is done", o.ID, o.Binds, d)
-	}
-	return nil
-}
-
-// Button is one answer a channel offers: its label and the router's one-time ticket for it.
-type Button struct {
-	Label  string `json:"label"`
-	Ticket string `json:"ticket"`
-}
-
-// Message is the work a channel takes: shown with buttons (Show), shown again in place (Edit), or said
-// (Send). Handle is the router's name for it, the same across a show and its edits; the channel keeps
-// which of its own messages that is. The words are the router's, shown as given.
-type Message struct {
-	Handle  string   `json:"handle"`
-	Title   string   `json:"title"`
-	Body    string   `json:"body"`
-	Buttons []Button `json:"buttons,omitempty"`
-	// Note is the message's secondary words, after its body and its buttons: who asked and when, what each
-	// answer does, when it expires, and the ask's Details. A channel shows it smaller, collapsed or set apart
-	// where it can, and after the body where it cannot (novox/hq issue 639). A channel that bounds a message's
-	// length cuts the body first and the note only when the title and the note alone do not fit, saying each
-	// cut (novox/hq ADR 0347 §5).
-	Note   string `json:"note,omitempty"`
-	Urgent bool   `json:"urgent,omitempty"`
-	Silent bool   `json:"silent,omitempty"`
-	// Reply is the Choice or LinkAsked this answers, by its ID: the channel shows it where that was made.
-	Reply string `json:"reply,omitempty"`
-	// To is the account linked as the operator on this kind, for a channel that verifies its sender: where
-	// the channel sends what is not a reply. The router's word, from its list; empty when none is linked.
-	To string `json:"to,omitempty"`
-	// Secret says the words carry something shown once (a link's code): the channel shows it and keeps no
-	// copy of it — no state, no history of its own.
-	Secret bool `json:"secret,omitempty"`
-}
-
-// Sender is who a channel's service says sent something: the account, the name it shows, and whether the
-// service authenticated it. The router alone judges whether that is the operator.
-type Sender struct {
-	Identity      string `json:"identity"`
-	Display       string `json:"display,omitempty"`
-	Authenticated bool   `json:"authenticated"`
-}
-
-// Failed is a message a channel could not deliver: its handle, why, and whether trying again could help.
-type Failed struct {
-	Handle    string    `json:"handle"`
-	Why       string    `json:"why"`
-	Permanent bool      `json:"permanent,omitempty"`
-	At        time.Time `json:"at"`
-}
-
-// Standing is what a channel says of itself, at least every five minutes and whenever it changes:
-// whether it can send now, why not, and whether its edits notify nobody.
-type Standing struct {
-	Ready         bool      `json:"ready"`
-	Why           string    `json:"why,omitempty"`
-	EditsSilently bool      `json:"edits-silently,omitempty"`
-	At            time.Time `json:"at"`
-}
-
-// What a channel says of its own delivery, on IntakeSubject.
-const (
-	FailedWhat   = "failed"
-	StandingWhat = "standing"
-)
-
-// Choice is a button chosen on a channel.
-type Choice struct {
-	// ID is the channel's own for this arrival, unique, so the router acts on it once.
-	ID     string    `json:"id"`
-	Ticket string    `json:"ticket"`
-	Handle string    `json:"handle,omitempty"`
-	Sender Sender    `json:"sender"`
-	At     time.Time `json:"at"`
-}
-
-// LinkAsked is somebody on a channel asking to be linked as the operator.
-type LinkAsked struct {
-	ID     string    `json:"id"`
-	Sender Sender    `json:"sender"`
-	At     time.Time `json:"at"`
-}
-
-// Code is a code a person typed on a channel, asked as a proof: never in an event, never kept.
-type Code struct {
-	Sender  Sender `json:"sender"`
-	Code    string `json:"code"`
-	Purpose string `json:"purpose"`
-}
-
-// ProofAnswer is the router's answer to a proof: whether it was taken, and words to say to the person.
-type ProofAnswer struct {
-	Accepted bool   `json:"accepted"`
-	Words    string `json:"words"`
-}
-
-// EngineAsker is the asker name a node's engine asks the operator under (novox/hq ADR 0563 §3, which changes ADR 0259
-// §2 to admit a node's engine as an asker): `node-engine-<node>`, the last token of the by-caller subjects granted to that
-// node's engine account alone, so no engine acts on another node's warrant.
-func EngineAsker(node string) string { return "node-engine-" + node }

go/asks/asks_test.go

@@ -1,367 +0,0 @@
-package asks
-
-import (
-	"crypto/sha256"
-	"encoding/hex"
-	"encoding/json"
-	"reflect"
-	"strings"
-	"testing"
-	"time"
-)
-
-var now = time.Date(2026, 10, 8, 14, 0, 0, 0, time.UTC)
-
-func held() Ask {
-	return Ask{ID: "d-1", Headline: "openrazer delivery held", Explanation: "Needs you: release it, or stop it.",
-		Who: Operator, Expires: now.Add(time.Hour), OnExpiry: "the delivery stays held", About: "delivery.openrazer",
-		Options: []Option{
-			{ID: "release", Label: "Release", Does: "the delivery goes on", Level: Approve, Binds: bind("release", "openrazer")},
-			{ID: "stop", Label: "Stop", Does: "the delivery ends", Level: Approve, Binds: bind("stop", "openrazer")},
-			{ID: "silence", Label: "Silence for a week", Does: "nothing more is said for a week", Level: Acknowledge},
-		}}
-}
-
-func bind(verb, what string) string {
-	d, err := ActDigest(Act{"verb": verb, "delivery": what})
-	if err != nil {
-		panic(err)
-	}
-	return d
-}
-
-func TestASoundAskPasses(t *testing.T) {
-	if err := held().Check(now); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestAnAskIsRefusedInWordsForEachFault(t *testing.T) {
-	for want, change := range map[string]func(*Ask){
-		"is not letters":             func(a *Ask) { a.ID = "a.b" },
-		"headline is empty":          func(a *Ask) { a.Headline = "" },
-		"explains nothing":           func(a *Ask) { a.Explanation = " " },
-		"only the operator answers":  func(a *Ask) { a.Who = "agent" },
-		"offers 0 options":           func(a *Ask) { a.Options = nil },
-		"offers 5 options":           func(a *Ask) { a.Options = append(a.Options, a.Options[0], a.Options[1]) },
-		"is offered twice":           func(a *Ask) { a.Options[1].ID = "release" },
-		"does not say what it does":  func(a *Ask) { a.Options[0].Does = "" },
-		"none of acknowledge":        func(a *Ask) { a.Options[0].Level = "admin" },
-		"expires before it is asked": func(a *Ask) { a.Expires = now },
-		"approves lasts at most":     func(a *Ask) { a.Expires = now.Add(25 * time.Hour) },
-		"destroys lasts at most":     func(a *Ask) { a.Options[0].Level = Destroy },
-		"never defaults":             func(a *Ask) { a.OnExpiry = "" },
-		"is a key, without spaces":   func(a *Ask) { a.About = "a b" },
-		"does not bind what it":      func(a *Ask) { a.Options[0].Binds = "" },
-	} {
-		a := held()
-		change(&a)
-		if err := a.Check(now); err == nil || !strings.Contains(err.Error(), want) {
-			t.Errorf("want a refusal saying %q, got %v", want, err)
-		}
-	}
-	ack := held()
-	ack.Options = ack.Options[2:]
-	ack.OnExpiry = ""
-	ack.Expires = now.Add(7 * 24 * time.Hour)
-	if err := ack.Check(now); err != nil {
-		t.Errorf("an ask that only acknowledges needs no expiry words and may last a week: %v", err)
-	}
-}
-
-func TestAnAskerActsOnlyOnAWarrantForItsOwnAskAndOption(t *testing.T) {
-	w := Warrant{Ask: "d-1", Asker: "mesh-delivery", Outcome: OutcomeChosen, Option: "release", Label: "Release",
-		Level: Approve, By: &Person{Who: Operator, Kind: "telegram", Identity: "42", Verified: "user id verified"},
-		AskDigest: held().Digest(), At: now.Add(time.Minute)}
-	if o, err := w.For("mesh-delivery", held()); err != nil || o.ID != "release" {
-		t.Fatalf("a sound warrant was refused: %v", err)
-	}
-	if got := w.Says(); got != "the operator, via telegram (user id verified), chose Release" {
-		t.Errorf("the warrant says %q", got)
-	}
-	for why, change := range map[string]func(*Warrant){
-		"another asker": func(w *Warrant) { w.Asker = "mesh-controller" },
-		"another ask":   func(w *Warrant) { w.Ask = "d-2" },
-		"no choice":     func(w *Warrant) { w.Outcome = OutcomeExpired },
-		"nobody":        func(w *Warrant) { w.By = nil },
-		"not offered":   func(w *Warrant) { w.Option = "delete" },
-		"a lower level": func(w *Warrant) { w.Level = Acknowledge },
-		"another role":  func(w *Warrant) { w.By = &Person{Who: "agent"} },
-		"no digest":     func(w *Warrant) { w.AskDigest = "" },
-		"no time given": func(w *Warrant) { w.At = time.Time{} },
-		"after expiry":  func(w *Warrant) { w.At = now.Add(2 * time.Hour) },
-		"another ask's digest": func(w *Warrant) {
-			other := held()
-			other.Options[0].Binds = bind("release", "another")
-			w.AskDigest = other.Digest()
-		},
-	} {
-		c := w
-		by := *w.By
-		c.By = &by
-		change(&c)
-		if _, err := c.For("mesh-delivery", held()); err == nil {
-			t.Errorf("a warrant with %s was acted on", why)
-		}
-	}
-}
-
-func TestTheSubjectsNameTheirPublisher(t *testing.T) {
-	for got, want := range map[string]string{
-		AskSubject("mesh-delivery"):         "mesh.seat.operator-channel.accept.ask.mesh-delivery",
-		DecidedSubject("mesh-delivery"):     "mesh.seat.operator-channel.event.decided.mesh-delivery",
-		ChannelSubject(Show, "telegram"):    "mesh.seat.channel.accept.show.telegram",
-		IntakeSubject(Chosen, "desktop"):    "mesh.seat.intake.event.choice.desktop",
-		ProofSubject(CodeProof, "telegram"): "mesh.seat.intake.proof.code.telegram",
-	} {
-		if got != want {
-			t.Errorf("%s, want %s", got, want)
-		}
-	}
-}
-
-// A warrant answers one ask as it was shown, and authorises the act its option bound and no other
-// (novox/hq ADR 0259 §6: the warrant is bound to the exact ask and its arguments).
-func TestAWarrantAuthorisesOnlyTheActItsOptionBound(t *testing.T) {
-	a := held()
-	// The digest survives the trip through the bus: what the router decodes and digests is what was sent.
-	raw, err := json.Marshal(a)
-	if err != nil {
-		t.Fatal(err)
-	}
-	var decoded Ask
-	if err := json.Unmarshal(raw, &decoded); err != nil {
-		t.Fatal(err)
-	}
-	if decoded.Digest() != a.Digest() {
-		t.Fatalf("the ask's digest changed on the way: %s, %s", decoded.Digest(), a.Digest())
-	}
-	local := a
-	local.Expires = a.Expires.In(time.FixedZone("CEST", 2*3600))
-	if local.Digest() != a.Digest() {
-		t.Error("the same instant in another zone digests differently")
-	}
-	// Changing anything the person was shown, or what an option binds, changes the digest.
-	for what, change := range map[string]func(*Ask){
-		"the headline":     func(a *Ask) { a.Headline += "!" },
-		"the explanation":  func(a *Ask) { a.Explanation += " " },
-		"a label":          func(a *Ask) { a.Options[0].Label = "Go" },
-		"what it binds":    func(a *Ask) { a.Options[0].Binds = bind("release", "another") },
-		"the expiry":       func(a *Ask) { a.Expires = a.Expires.Add(time.Second) },
-		"what it is about": func(a *Ask) { a.About = "delivery.other" },
-	} {
-		c := held()
-		change(&c)
-		if c.Digest() == a.Digest() {
-			t.Errorf("changing %s leaves the digest", what)
-		}
-	}
-	o, _ := a.Option("release")
-	if err := o.Performs(Act{"verb": "release", "delivery": "openrazer"}); err != nil {
-		t.Errorf("the bound act was refused: %v", err)
-	}
-	if err := o.Performs(Act{"verb": "release", "delivery": "another"}); err == nil {
-		t.Error("an act the option did not bind was let through")
-	}
-	ack, _ := a.Option("silence")
-	if err := ack.Performs(Act{"anything": "x"}); err != nil {
-		t.Errorf("an acknowledgement that bound nothing: %v", err)
-	}
-}
-
-// The digests are over named fields in a canonical encoding (the review of 2026-10-09): not over Go's
-// encoding of a struct, so a field added to Ask or Option, a JSON tag renamed, or a map built in another
-// order changes nothing it should not — and every field that is shown or bound is in it.
-func TestDigestsAreCanonicalOverNamedFields(t *testing.T) {
-	a1, _ := ActDigest(Act{"verb": "release", "arg.delivery": "hq"})
-	b := Act{}
-	b["arg.delivery"] = "hq"
-	b["verb"] = "release"
-	a2, _ := ActDigest(b)
-	if a1 != a2 {
-		t.Error("the order an act was built in changed its digest")
-	}
-	// A value cannot be read as two: "a"+"b=c" is not "a=b"+"c".
-	x, _ := ActDigest(Act{"a": "b\n1:c"})
-	y, _ := ActDigest(Act{"a": "b", "c": ""})
-	if x == y {
-		t.Error("two different acts encode the same")
-	}
-	if _, err := ActDigest(Act{}); err == nil {
-		t.Error("an empty act was digested")
-	}
-	// The encoding, by hand: any language reproduces it.
-	sum := sha256.Sum256([]byte("novox.act.v1\n4:verb\n7:release\n"))
-	if got, _ := ActDigest(Act{"verb": "release"}); got != "sha256:"+hex.EncodeToString(sum[:]) {
-		t.Errorf("the act's encoding is not the one written down: %s", got)
-	}
-
-	// Every exported field of Ask and Option is in the digest: changing any one changes it.
-	base := held()
-	mutations := map[string]func(*Ask){
-		"ID":          func(a *Ask) { a.ID = "other" },
-		"Headline":    func(a *Ask) { a.Headline += "!" },
-		"Explanation": func(a *Ask) { a.Explanation += "!" },
-		"Who":         func(a *Ask) { a.Who = "someone" },
-		"Expires":     func(a *Ask) { a.Expires = a.Expires.Add(time.Nanosecond) },
-		"OnExpiry":    func(a *Ask) { a.OnExpiry += "!" },
-		"About":       func(a *Ask) { a.About += "!" },
-		"Urgent":      func(a *Ask) { a.Urgent = !a.Urgent },
-		"Options":     func(a *Ask) { a.Options = a.Options[:1] },
-		"Option.ID":   func(a *Ask) { a.Options = append([]Option(nil), a.Options...); a.Options[0].ID = "x" },
-		"Option.Label": func(a *Ask) {
-			a.Options = append([]Option(nil), a.Options...)
-			a.Options[0].Label += "!"
-		},
-		"Option.Does": func(a *Ask) { a.Options = append([]Option(nil), a.Options...); a.Options[0].Does += "!" },
-		"Option.Level": func(a *Ask) {
-			a.Options = append([]Option(nil), a.Options...)
-			a.Options[0].Level = Destroy
-		},
-		"Option.Binds": func(a *Ask) {
-			a.Options = append([]Option(nil), a.Options...)
-			a.Options[0].Binds = "sha256:00"
-		},
-	}
-	for name, mutate := range mutations {
-		c := base
-		mutate(&c)
-		if c.Digest() == base.Digest() {
-			t.Errorf("changing %s left the digest the same", name)
-		}
-	}
-	// Whole and Details (issue 383) are in the digest once given, and change it; an ask without either digests
-	// exactly as before they existed — the encoding by hand, so no build can drift from it unseen.
-	plain := Ask{ID: "p", Headline: "h", Explanation: "e", Who: Operator, Expires: now, OnExpiry: "o", About: "a",
-		Options: []Option{{ID: "ok", Label: "OK", Does: "d", Level: Acknowledge}}}
-	byHand := sha256.Sum256([]byte("novox.ask.v1\n1:p\n1:h\n1:e\n8:operator\n20:2026-10-08T14:00:00Z\n1:o\n1:a\n5:false\n1:1\n" +
-		"2:ok\n2:OK\n1:d\n11:acknowledge\n0:\n"))
-	if plain.Digest() != "sha256:"+hex.EncodeToString(byHand[:]) {
-		t.Errorf("an ask without Whole and Details does not digest as it did before them: %s", plain.Digest())
-	}
-	withWhole, withDetails := plain, plain
-	withWhole.Whole = "e, whole"
-	withDetails.Details = "fingerprint 1234"
-	if withWhole.Digest() == plain.Digest() || withDetails.Digest() == plain.Digest() || withWhole.Digest() == withDetails.Digest() {
-		t.Error("Whole or Details left the digest the same")
-	}
-	both := withWhole
-	both.Details = "fingerprint 1234"
-	changed := both
-	changed.Whole += "!"
-	if changed.Digest() == both.Digest() {
-		t.Error("changing Whole beside Details left the digest the same")
-	}
-	// A field added to Ask or Option without being added to Digest fails here.
-	if n := reflect.TypeOf(Ask{}).NumField(); n != 12 {
-		t.Errorf("Ask has %d fields, and Digest covers 12: add the new one to Digest and to this test", n)
-	}
-	if n := reflect.TypeOf(Option{}).NumField(); n != 5 {
-		t.Errorf("Option has %d fields, and Digest covers 5: add the new one to Digest and to this test", n)
-	}
-	// The same instant in another zone is the same ask.
-	z := base
-	z.Expires = z.Expires.In(time.FixedZone("x", 3600))
-	if z.Digest() != base.Digest() {
-		t.Error("the expiry's zone changed the digest")
-	}
-}
-
-// An ask that says no expiry is answered by no warrant (the confirmation review of 2026-10-09): nothing could
-// show the answer was in time.
-func TestAWarrantForAnAskWithNoExpiryIsRefused(t *testing.T) {
-	a := held()
-	a.Expires = time.Time{}
-	w := Warrant{Ask: "d-1", Asker: "mesh-delivery", Outcome: OutcomeChosen, Option: "release", Label: "Release",
-		Level: Approve, By: &Person{Who: Operator, Kind: "telegram", Identity: "42"}, AskDigest: a.Digest(),
-		At: now.Add(time.Minute)}
-	if _, err := w.For("mesh-delivery", a); err == nil {
-		t.Error("a warrant for an ask with no expiry was taken")
-	}
-}
-
-// An explanation that reads at a glance passes; a wall of text says each way it is one (novox/hq issue 639).
-func TestAnExplanationReadsAtAGlance(t *testing.T) {
-	if err := Glance("Your agents' memory follows you to every machine. A file changed on two keeps both.\n\n• Only the memory folders are carried\n• A conflict reaches you as a warning"); err != nil {
-		t.Fatalf("a summary and two points: %v", err)
-	}
-	var wall strings.Builder
-	wall.WriteString("ADR 0343 was proposed by fix-367 and approved by the knowledge base's own review.")
-	for i := 1; i <= 13; i++ {
-		wall.WriteString("\n" + strings.Repeat("A clause lead. ", 3))
-	}
-	err := Glance(wall.String())
-	if err == nil || !strings.Contains(err.Error(), "13 points") {
-		t.Fatalf("thirteen clause lines pass as a glance: %v", err)
-	}
-	if err := Glance(strings.Repeat("word ", 70)); err == nil || !strings.Contains(err.Error(), "summary is 349") {
-		t.Fatalf("a long summary passes: %v", err)
-	}
-	if err := Glance("short.\n" + strings.Repeat("p", PointLength+1)); err == nil || !strings.Contains(err.Error(), "point 1") {
-		t.Fatalf("a long point passes: %v", err)
-	}
-	if err := Glance(" \n"); err == nil {
-		t.Fatal("an empty explanation passes")
-	}
-}
-
-// A message's note travels beside its body, and is left out of the encoding when empty, so a channel older
-// than it reads every message it read before.
-func TestAMessageCarriesItsNoteApart(t *testing.T) {
-	raw, _ := json.Marshal(Message{Handle: "h", Title: "t", Body: "b", Note: "Asked by x."})
-	if !strings.Contains(string(raw), `"note":"Asked by x."`) {
-		t.Fatalf("the note is not encoded: %s", raw)
-	}
-	raw, _ = json.Marshal(Message{Handle: "h", Title: "t"})
-	if strings.Contains(string(raw), "note") {
-		t.Fatalf("an empty note is encoded: %s", raw)
-	}
-}
-
-// WholeDetails is digested when given, and an ask without it digests as before it existed: a router and an asker
-// of different builds still agree on every such ask.
-func TestWholeDetailsAreDigestedOnlyWhenGiven(t *testing.T) {
-	a := Ask{ID: "a", Headline: "h", Explanation: "e", Details: "d"}
-	before := a.Digest()
-	a.WholeDetails = "+ shares: media=/storage/media"
-	if a.Digest() == before {
-		t.Fatal("the whole details are not in the digest")
-	}
-	b := a
-	b.WholeDetails = "+ shares: media=/storage/other"
-	if a.Digest() == b.Digest() {
-		t.Fatal("two whole details digest the same")
-	}
-	a.WholeDetails = ""
-	if a.Digest() != before {
-		t.Fatal("an ask without whole details digests otherwise than before")
-	}
-}
-
-// No two asks encode the same (the review of mesh-sdk #25): whole details given beside nothing else are not read as
-// a Whole and Details that happen to spell the same values, nor as any other split of the three fields.
-func TestWholeDetailsCollideWithNoOtherAsk(t *testing.T) {
-	base := Ask{ID: "a", Headline: "h", Explanation: "e"}
-	shapes := []Ask{}
-	for _, f := range []struct{ whole, details, wholeDetails string }{
-		{"", "", "+ x: 1"},
-		{"whole-details", "+ x: 1", ""},
-		{"", "+ x: 1", ""},
-		{"+ x: 1", "", ""},
-		{"", "", "whole-details"},
-		{"", "+ x: 1", "+ x: 1"},
-		{"+ x: 1", "+ x: 1", ""},
-		{"", "", ""},
-	} {
-		a := base
-		a.Whole, a.Details, a.WholeDetails = f.whole, f.details, f.wholeDetails
-		shapes = append(shapes, a)
-	}
-	seen := map[string]int{}
-	for i, a := range shapes {
-		if j, ok := seen[a.Digest()]; ok {
-			t.Errorf("asks %d and %d digest the same: %+v / %+v", j, i, shapes[j], a)
-		}
-		seen[a.Digest()] = i
-	}
-}

go/asks/condition.go

@@ -1,149 +0,0 @@
-package asks
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"reflect"
-	"strings"
-)
-
-// ConditionSubject is where a module says a condition to the operator: a by-caller accept of the operator-channel
-// seat, `mesh.seat.operator-channel.accept.condition.<publisher>` (novox/hq ADR 0437 §9). The router reads the
-// verb at the fifth part and the caller at the sixth, so the publisher is one token, the module's own name; it is
-// refused when empty or when it holds a dot, a wildcard or whitespace.
-func ConditionSubject(publisher string) (string, error) {
-	if publisher == "" {
-		return "", errors.New("asks: the condition's publisher is empty")
-	}
-	if strings.ContainsAny(publisher, ".*> \t\r\n") || strings.ContainsFunc(publisher, func(r rune) bool { return r <= ' ' }) {
-		return "", fmt.Errorf("asks: the condition's publisher %q is not one token: it holds a dot, a wildcard or whitespace", publisher)
-	}
-	return "mesh.seat." + Seat + ".accept.condition." + publisher, nil
-}
-
-// ConditionVersion is the version of the condition value this package writes and the only one it reads.
-const ConditionVersion = 1
-
-// ErrUnknownConditionVersion is what DecodeCondition returns for a value whose version is missing or not
-// ConditionVersion. Test it with errors.Is.
-var ErrUnknownConditionVersion = errors.New("asks: unknown condition version")
-
-// The words a condition's explanation opens with (novox/hq ADR 0253 §1).
-const (
-	NothingToDo = "Nothing for you to do."
-	NeedsYou    = "Needs you: "
-)
-
-// The severities and states of a condition.
-const (
-	SeverityUrgent  = "urgent"
-	SeverityWarning = "warning"
-	StateRaised     = "raised"
-	StateCleared    = "cleared"
-)
-
-// Scope is what a condition is about, under the controller's names.
-type Scope struct {
-	Scope   string `json:"scope"`
-	ID      string `json:"id"`
-	Machine string `json:"machine,omitempty"`
-}
-
-// Action is one answer a notification offers, under the controller's names.
-type Action struct {
-	Label     string            `json:"label"`
-	Verb      string            `json:"verb"`
-	Machine   string            `json:"machine,omitempty"`
-	Arguments map[string]string `json:"arguments,omitempty"`
-	Level     Level             `json:"level,omitempty"`
-}
-
-// Condition is a condition a module says to the operator, under the names of the controller's conditions: its key,
-// severity, subject, state (raised or cleared), summary and the plain words of ADR 0253. A cleared condition needs
-// only its key, subject and state. The router alone chooses the channels.
-type Condition struct {
-	V           int      `json:"v"`
-	Key         string   `json:"key"`
-	Severity    string   `json:"severity,omitempty"`
-	Subject     Scope    `json:"subject"`
-	State       string   `json:"state"`
-	Summary     string   `json:"summary,omitempty"`
-	Headline    string   `json:"headline,omitempty"`
-	Needs       string   `json:"needs,omitempty"`
-	Explanation string   `json:"explanation,omitempty"`
-	Resolved    string   `json:"resolved,omitempty"`
-	Actions     []Action `json:"actions,omitempty"`
-}
-
-func (c Condition) check() error {
-	if c.Key == "" {
-		return errors.New("asks: a condition has no key")
-	}
-	if c.Subject.Scope == "" || c.Subject.ID == "" {
-		return errors.New("asks: a condition's subject needs its scope and id")
-	}
-	switch c.State {
-	case StateCleared:
-		return nil
-	case StateRaised:
-	default:
-		return fmt.Errorf("asks: the condition's state %q is not raised or cleared", c.State)
-	}
-	switch c.Severity {
-	case SeverityUrgent, SeverityWarning:
-	default:
-		return fmt.Errorf("asks: the condition's severity %q is not urgent or warning", c.Severity)
-	}
-	if c.Headline == "" {
-		return errors.New("asks: a raised condition has no headline")
-	}
-	if n := len([]rune(c.Headline)); n > HeadlineLength {
-		return fmt.Errorf("asks: the condition's headline is %d characters, more than %d", n, HeadlineLength)
-	}
-	verdict := NothingToDo
-	if c.Needs != "" {
-		verdict = NeedsYou + c.Needs
-	}
-	if !strings.HasPrefix(c.Explanation, verdict) {
-		return fmt.Errorf("asks: the condition's explanation must open with %q", verdict)
-	}
-	return nil
-}
-
-// EncodeCondition is c as JSON at ConditionVersion; it refuses what ADR 0253 and ADR 0437 §9 refuse.
-func EncodeCondition(c Condition) ([]byte, error) {
-	if err := c.check(); err != nil {
-		return nil, err
-	}
-	c.V = ConditionVersion
-	return json.Marshal(c)
-}
-
-// DecodeCondition reads a condition; it refuses an unknown version (ErrUnknownConditionVersion) and what
-// EncodeCondition refuses.
-func DecodeCondition(data []byte) (Condition, error) {
-	var probe struct {
-		V *int `json:"v"`
-	}
-	if err := json.Unmarshal(data, &probe); err != nil {
-		return Condition{}, fmt.Errorf("asks: the condition is not JSON: %w", err)
-	}
-	if probe.V == nil {
-		return Condition{}, fmt.Errorf("%w: no version in the value, this reader reads %d", ErrUnknownConditionVersion, ConditionVersion)
-	}
-	if *probe.V != ConditionVersion {
-		return Condition{}, fmt.Errorf("%w: the value is version %d, this reader reads %d", ErrUnknownConditionVersion, *probe.V, ConditionVersion)
-	}
-	var c Condition
-	if err := json.Unmarshal(data, &c); err != nil {
-		return Condition{}, fmt.Errorf("asks: the condition does not fit its shape: %w", err)
-	}
-	if err := c.check(); err != nil {
-		return Condition{}, err
-	}
-	return c, nil
-}
-
-// SameCondition says whether two conditions are the same value.
-func SameCondition(a, b Condition) bool { return reflect.DeepEqual(a, b) }

go/asks/condition_test.go

@@ -1,143 +0,0 @@
-package asks
-
-import (
-	"encoding/json"
-	"errors"
-	"strings"
-	"testing"
-)
-
-func TestConditionSubject(t *testing.T) { // 1202/AC1
-	s, err := ConditionSubject("mesh-delivery-teller")
-	if err != nil || s != "mesh.seat.operator-channel.accept.condition.mesh-delivery-teller" {
-		t.Fatalf("subject = %q, %v", s, err)
-	}
-	// The router splits an accept subject in six parts and reads the verb at 4 and the caller at 5.
-	parts := strings.Split(s, ".")
-	if len(parts) != 6 || parts[4] != "condition" || parts[5] != "mesh-delivery-teller" {
-		t.Errorf("subject %q does not keep the router's shape: %v", s, parts)
-	}
-	for _, bad := range []string{"", "a.b", "a*", "a>", "a b", "a\tb", "a\nb"} {
-		if _, err := ConditionSubject(bad); err == nil {
-			t.Errorf("publisher %q accepted", bad)
-		}
-	}
-}
-
-func raisedCondition() Condition {
-	return Condition{
-		Key: "delivery.stuck.mesh-mail", Severity: "warning",
-		Subject: Scope{Scope: "module", ID: "mesh-mail", Machine: "ace"}, State: "raised",
-		Summary: "plan 12 stopped", Headline: "Delivery of mesh-mail is stuck",
-		Needs: "approve the merge.", Explanation: "Needs you: approve the merge. The plan waits.",
-		Resolved: "The delivery of mesh-mail moved on.",
-		Actions: []Action{{Label: "Approve", Verb: "mesh-controller.assign", Machine: "ace",
-			Arguments: map[string]string{"why": ""}, Level: Approve}},
-	}
-}
-
-func clearedCondition() Condition {
-	return Condition{Key: "delivery.stuck.mesh-mail", Subject: Scope{Scope: "module", ID: "mesh-mail"}, State: "cleared"}
-}
-
-func TestConditionRoundTrip(t *testing.T) { // 1202/AC2
-	for _, c := range []Condition{raisedCondition(), clearedCondition()} {
-		data, err := EncodeCondition(c)
-		if err != nil {
-			t.Fatalf("%s: %v", c.State, err)
-		}
-		var probe map[string]any
-		if err := json.Unmarshal(data, &probe); err != nil || probe["v"] != float64(1) {
-			t.Fatalf("%s: %s does not carry v:1", c.State, data)
-		}
-		c.V = ConditionVersion
-		got, err := DecodeCondition(data)
-		if err != nil || !SameCondition(got, c) {
-			t.Errorf("%s round trip: %+v %v", c.State, got, err)
-		}
-	}
-	data, _ := EncodeCondition(raisedCondition())
-	var probe map[string]any
-	_ = json.Unmarshal(data, &probe)
-	for _, name := range []string{"key", "severity", "subject", "summary", "headline", "needs", "explanation", "resolved", "actions", "state"} {
-		if _, ok := probe[name]; !ok {
-			t.Errorf("the JSON has no %q: %s", name, data)
-		}
-	}
-	subject := probe["subject"].(map[string]any)
-	for _, name := range []string{"scope", "id", "machine"} {
-		if _, ok := subject[name]; !ok {
-			t.Errorf("the subject has no %q: %s", name, data)
-		}
-	}
-	action := probe["actions"].([]any)[0].(map[string]any)
-	for _, name := range []string{"label", "verb", "machine", "arguments", "level"} {
-		if _, ok := action[name]; !ok {
-			t.Errorf("the action has no %q: %s", name, data)
-		}
-	}
-	for _, in := range []string{`{"key":"k"}`, `{"v":2,"key":"k"}`} {
-		if _, err := DecodeCondition([]byte(in)); !errors.Is(err, ErrUnknownConditionVersion) {
-			t.Errorf("decode of %s = %v, want ErrUnknownConditionVersion", in, err)
-		}
-	}
-}
-
-func TestConditionVerdict(t *testing.T) { // 1202/AC3
-	c := raisedCondition()
-	c.Needs, c.Explanation = "", "The plan waits."
-	_, err := EncodeCondition(c)
-	if err == nil || !strings.Contains(err.Error(), "Nothing for you to do.") {
-		t.Errorf("empty needs without its verdict: %v", err)
-	}
-	c.Explanation = "Nothing for you to do. The plan waits."
-	if _, err := EncodeCondition(c); err != nil {
-		t.Errorf("empty needs with its verdict refused: %v", err)
-	}
-	c = raisedCondition()
-	c.Explanation = "Nothing for you to do. The plan waits."
-	_, err = EncodeCondition(c)
-	if err == nil || !strings.Contains(err.Error(), "Needs you: approve the merge.") {
-		t.Errorf("needs set with the wrong verdict: %v", err)
-	}
-	c.Explanation = "Needs you: something else. The plan waits."
-	if _, err = EncodeCondition(c); err == nil {
-		t.Error("needs set with other needs in the verdict accepted")
-	}
-}
-
-func TestConditionRefused(t *testing.T) { // 1202/AC4
-	mutate := func(f func(*Condition)) error {
-		c := raisedCondition()
-		f(&c)
-		_, err := EncodeCondition(c)
-		return err
-	}
-	for name, f := range map[string]func(*Condition){
-		"severity":      func(c *Condition) { c.Severity = "critical" },
-		"state":         func(c *Condition) { c.State = "open" },
-		"key":           func(c *Condition) { c.Key = "" },
-		"headline":      func(c *Condition) { c.Headline = "" },
-		"long headline": func(c *Condition) { c.Headline = strings.Repeat("h", HeadlineLength+1) },
-	} {
-		if err := mutate(f); err == nil {
-			t.Errorf("a condition with a bad %s accepted", name)
-		}
-	}
-	if err := mutate(func(c *Condition) { c.Headline = strings.Repeat("h", HeadlineLength) }); err != nil {
-		t.Errorf("a headline of the greatest length refused: %v", err)
-	}
-	if _, err := EncodeCondition(clearedCondition()); err != nil {
-		t.Errorf("a cleared condition with only key, subject and state refused: %v", err)
-	}
-	c := clearedCondition()
-	c.Key = ""
-	if _, err := EncodeCondition(c); err == nil {
-		t.Error("a cleared condition without its key accepted")
-	}
-	c = clearedCondition()
-	c.State = "gone"
-	if _, err := EncodeCondition(c); err == nil {
-		t.Error("a condition with an unknown state accepted")
-	}
-}

go/buildstep/request_test.go

@@ -46,7 +46,7 @@ func TestAFetchRequestCarriesTheNamedPathsThroughTheToolCall(t *testing.T) {
 		{map[string]any{"dir": "../a", "paths": []any{"src"}}, "leaves the repository"},
 		{map[string]any{"dir": "modules/a", "paths": []any{3}}, "paths is a list of strings"},
 		{map[string]any{"dir": "modules/a"}, "names a module directory and no path"},
-		{map[string]any{"packages": map[string]any{"git.novox.be/novox/mesh-sdk/go": "v0.1.7"}}, "no full commit"},
+		{map[string]any{"packages": map[string]any{"git.novox.be/novox/mesh-sdk/go": "main"}}, "neither a full commit nor a Go semantic version"},
 		{map[string]any{"packages": map[string]any{"a b": strings.Repeat("d", 40)}}, "no module path"},
 		{map[string]any{"packages": []any{"x"}}, "packages is an object"},
 	} {

go/buscalls/answer.go

@@ -0,0 +1,50 @@
+package buscalls
+
+import "encoding/json"
+
+// Unwrap reads a tool's answer whatever wraps it on its way from the tool runner (the lead's ruling 2026-11-04 13:12:
+// one reading, not a copy per module): a JSON string holding the answer; the protocol's content list, whose first
+// text is the answer and whose isError says it failed; the {output, ok, answer} form; the tool runner's {result,
+// error} envelope, whose error is the call's. It answers the answer itself, the words said with it (the output, the
+// error, or the answer's own text), and whether the tool says it succeeded. A bare answer is itself, succeeded.
+func Unwrap(raw json.RawMessage) (answer json.RawMessage, said string, ok bool) {
+	var s string
+	if json.Unmarshal(raw, &s) == nil {
+		return Unwrap(json.RawMessage(s))
+	}
+	var m map[string]json.RawMessage
+	if json.Unmarshal(raw, &m) != nil {
+		return raw, string(raw), true
+	}
+	if content, has := m["content"]; has {
+		var items []struct {
+			Text string `json:"text"`
+		}
+		var e struct {
+			IsError bool `json:"isError"`
+		}
+		_ = json.Unmarshal(raw, &e)
+		if json.Unmarshal(content, &items) == nil && len(items) > 0 {
+			inner, out, ok := Unwrap(json.RawMessage(items[0].Text))
+			return inner, out, ok && !e.IsError
+		}
+	}
+	var v struct {
+		Output string          `json:"output"`
+		OK     *bool           `json:"ok"`
+		Answer json.RawMessage `json:"answer"`
+		Result json.RawMessage `json:"result"`
+		Error  string          `json:"error"`
+	}
+	if json.Unmarshal(raw, &v) == nil {
+		switch {
+		case v.OK != nil:
+			return v.Answer, v.Output, *v.OK
+		case v.Error != "":
+			return nil, v.Error, false
+		case len(v.Result) > 0:
+			return Unwrap(v.Result)
+		}
+	}
+	return raw, string(raw), true
+}

go/buscompose/names_test.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	"git.novox.be/novox/mesh-sdk/go/membership"
+	"git.novox.be/novox/mesh-sdk/go/seatdef"
 )
 
 // The names this package keeps for the grants part's composer (mesh-grants internal/buscompose, ADR 0593 §1) agree with
@@ -32,4 +33,10 @@ func TestTheBusNamesAgree(t *testing.T) {
 	if err := ledger.Valid(); err != nil || ledger.OwnSecret() != "ledgers" {
 		t.Fatalf("a wanted ledger account: %v, held in %q", err, ledger.OwnSecret())
 	}
+	// A seat's family is the shared events stream filtered to its subjects: a definition says the stream's age.
+	for _, st := range MeshStreams() {
+		if st.Name == EventsStream && int64(st.MaxAge) != seatdef.SharedEventsMaxAgeDays*24*60*60 {
+			t.Errorf("the shared events stream keeps %d s, a seat's definition says %d days", st.MaxAge, seatdef.SharedEventsMaxAgeDays)
+		}
+	}
 }

go/buscompose/users.go

@@ -1,5 +1,7 @@
 package buscompose
 
+import "git.novox.be/novox/mesh-sdk/go/catalogue"
+
 // Declared is one module on one node, as composing its authority needs it.
 type Declared struct {
 	Module   string
@@ -102,4 +104,4 @@ type ProcessPrincipal struct {
 }
 
 // VaultSeat is the vault's seat: its holder alone asks the desks and the issuing providers in its own name.
-const VaultSeat = "mesh-vault"
+const VaultSeat = catalogue.VaultSeat

go/busstate.go

@@ -0,0 +1,31 @@
+package stdio
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+)
+
+// busStateCalls are the method prefixes of the calls a bundle makes on its own bus state through the runtime (novox/hq
+// ADR 0595 §9, design 25 § 12.5): their shapes and names are package buscalls's, and package busstate the typed way
+// to make them.
+var busStateCalls = []string{"mesh/objects.", "mesh/stream.", "mesh/workqueue.", "mesh/ledger."}
+
+// BusState asks the runtime one call on this bundle's own bus state, an entry its module asks for in `requires`, named
+// by its local name in params; the runtime serves it from the module's own bindings only. A method that is none of
+// those calls is refused here, before the runtime is asked.
+func BusState(method string, params any) (json.RawMessage, error) {
+	known := false
+	for _, p := range busStateCalls {
+		known = known || strings.HasPrefix(method, p)
+	}
+	if !known {
+		return nil, fmt.Errorf("%s is no call on a bundle's own bus state (%s)", method, strings.Join(busStateCalls, ", "))
+	}
+	c, err := live()
+	if err != nil {
+		return nil, err
+	}
+	return c.ask(method, params, 60*time.Second)
+}

go/busstate/busstate.go

@@ -0,0 +1,59 @@
+// Package busstate is how a bundle uses its own bus state through the runtime (novox/hq ADR 0595 §9, design 25 §
+// 12.5): the object store's put, get, list, delete and fill, each naming an entry by the local name its module asks for
+// it by in `requires`. The runtime serves the calls from the module's own bindings, its own entries only. The shapes
+// are package buscalls's; this package makes the calls.
+package busstate
+
+import (
+	"encoding/json"
+	"fmt"
+
+	stdio "git.novox.be/novox/mesh-sdk/go"
+	"git.novox.be/novox/mesh-sdk/go/buscalls"
+)
+
+// Objects is one object store the module asks for in `requires` (the template objects, ADR 0595 §2), by its local name.
+type Objects struct{ local string }
+
+// ObjectsOf is the object store of that local name.
+func ObjectsOf(local string) Objects { return Objects{local: local} }
+
+func call[T any](method string, params any) (T, error) {
+	var out T
+	raw, err := stdio.BusState(method, params)
+	if err != nil {
+		return out, err
+	}
+	if err := json.Unmarshal(raw, &out); err != nil {
+		return out, fmt.Errorf("the runtime's answer to %s: %w", method, err)
+	}
+	return out, nil
+}
+
+// Put stores one object whole under its name, replacing one of that name, and answers it as the store holds it.
+func (o Objects) Put(name string, data []byte, description string) (buscalls.ObjectInfo, error) {
+	return call[buscalls.ObjectInfo](buscalls.ObjectsPut, buscalls.ObjectsPutRequest{Objects: o.local, Name: name,
+		Data: data, Description: description})
+}
+
+// Get is one object, its info and its bytes.
+func (o Objects) Get(name string) (buscalls.ObjectData, error) {
+	return call[buscalls.ObjectData](buscalls.ObjectsGet, buscalls.ObjectsNameRequest{Objects: o.local, Name: name})
+}
+
+// List is every object the store holds.
+func (o Objects) List() ([]buscalls.ObjectInfo, error) {
+	l, err := call[buscalls.ObjectsListed](buscalls.ObjectsList, buscalls.ObjectsRequest{Objects: o.local})
+	return l.Objects, err
+}
+
+// Delete removes one object.
+func (o Objects) Delete(name string) error {
+	_, err := call[buscalls.Done](buscalls.ObjectsDelete, buscalls.ObjectsNameRequest{Objects: o.local, Name: name})
+	return err
+}
+
+// Fill is how much the store holds against its cap.
+func (o Objects) Fill() (buscalls.Fill, error) {
+	return call[buscalls.Fill](buscalls.ObjectsInfo, buscalls.ObjectsRequest{Objects: o.local})
+}

go/busstate/busstate_test.go

@@ -0,0 +1,102 @@
+package busstate
+
+import (
+	"bufio"
+	"encoding/json"
+	"io"
+	"testing"
+	"time"
+
+	stdio "git.novox.be/novox/mesh-sdk/go"
+	"git.novox.be/novox/mesh-sdk/go/buscalls"
+)
+
+// A bundle keeps objects in its own object store through the runtime (ADR 0595 §2, §9; A3's request for distribution's
+// incoming): each call is the runtime's method of buscalls, naming the store by its local name, and answers as the
+// runtime answered; a method that is no bus-state call is refused before the runtime is asked.
+func TestABundleKeepsObjectsThroughTheRuntime(t *testing.T) {
+	t.Setenv(stdio.ServedAs, "distribution")
+	inR, inW := io.Pipe()
+	outR, outW := io.Pipe()
+	type result struct {
+		what string
+		err  error
+		got  any
+	}
+	results := make(chan result, 8)
+	go func() {
+		_ = stdio.ServeOn("", []stdio.Tool{{Name: "keep", Run: func(map[string]any) (any, error) {
+			go func() {
+				in := ObjectsOf("incoming")
+				info, err := in.Put("t1.part0", []byte("hello"), "a part")
+				results <- result{"put", err, info.Digest}
+				data, err := in.Get("t1.part0")
+				results <- result{"get", err, string(data.Data)}
+				list, err := in.List()
+				results <- result{"list", err, len(list)}
+				results <- result{"delete", in.Delete("t1.part0"), nil}
+				fill, err := in.Fill()
+				results <- result{"fill", err, fill.MaxBytes}
+				_, err = stdio.BusState("mesh/state.get", nil)
+				results <- result{"refused", err, nil}
+			}()
+			return "started", nil
+		}}}, inR, outW)
+	}()
+	lines := bufio.NewScanner(outR)
+	next := func() map[string]any {
+		done := make(chan map[string]any, 1)
+		go func() {
+			if lines.Scan() {
+				var m map[string]any
+				_ = json.Unmarshal(lines.Bytes(), &m)
+				done <- m
+			}
+		}()
+		select {
+		case m := <-done:
+			return m
+		case <-time.After(3 * time.Second):
+			t.Fatal("the bundle said nothing")
+			return nil
+		}
+	}
+	send := func(m map[string]any) { b, _ := json.Marshal(m); _, _ = inW.Write(append(b, '\n')) }
+	send(map[string]any{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": map[string]any{"name": "keep"}})
+	answers := map[string]any{
+		buscalls.ObjectsPut:    buscalls.ObjectInfo{Name: "t1.part0", Size: 5, Digest: "SHA-256=x"},
+		buscalls.ObjectsGet:    buscalls.ObjectData{Info: buscalls.ObjectInfo{Name: "t1.part0"}, Data: []byte("hello")},
+		buscalls.ObjectsList:   buscalls.ObjectsListed{Objects: []buscalls.ObjectInfo{{Name: "t1.part0"}}},
+		buscalls.ObjectsDelete: buscalls.Done{},
+		buscalls.ObjectsInfo:   buscalls.Fill{Count: 0, MaxBytes: 20 << 30},
+	}
+	asked := map[string]map[string]any{}
+	for len(asked) < len(answers) {
+		m := next()
+		method, _ := m["method"].(string)
+		if method == "" {
+			continue // the tool's own answer
+		}
+		p, _ := m["params"].(map[string]any)
+		asked[method] = p
+		send(map[string]any{"jsonrpc": "2.0", "id": m["id"], "result": answers[method]})
+	}
+	want := map[string]any{"put": "SHA-256=x", "get": "hello", "list": 1, "delete": nil, "fill": uint64(20 << 30)}
+	for range 5 {
+		r := <-results
+		if r.err != nil || r.got != want[r.what] {
+			t.Errorf("%s answered %v, %v; want %v", r.what, r.got, r.err, want[r.what])
+		}
+	}
+	if r := <-results; r.err == nil {
+		t.Error("a call that is not on the bundle's bus state was asked of the runtime")
+	}
+	for method, p := range asked {
+		if p["objects"] != "incoming" {
+			t.Errorf("%s named the store %v, not its local name", method, p["objects"])
+		}
+	}
+	if p := asked[buscalls.ObjectsPut]; p["name"] != "t1.part0" || p["data"] != "aGVsbG8=" || p["description"] != "a part" {
+		t.Errorf("put asked %v", p)
+	}
+}

go/caller.go

@@ -22,8 +22,19 @@ const MetaCaller = "mesh/caller"
 // parts are safe in a subject. Anything else the runtime named is not a caller and reads as Unproven.
 var busUser = regexp.MustCompile(`^[A-Za-z0-9_-]+(\.[A-Za-z0-9_-]+)*$`)
 
-// calls holds the caller of every call while its tool runs, by the arguments map that call was handed.
-var calls sync.Map // unsafe.Pointer → string
+// MetaCall is where in a `tools/call`'s `_meta` the runtime names the id of the call in flight, the id a ledger's
+// apply names so the runtime stamps the caller it proved as the operation's author (novox/hq ADR 0597 §7):
+// buscalls.MetaCall, written here too so this package imports nothing of buscalls.
+const MetaCall = "mesh/call"
+
+// callID is the shape of a call's id: one subject-safe token, as the runtime makes it. Anything else reads as none.
+var callID = regexp.MustCompile(`^[A-Za-z0-9_-]{1,128}$`)
+
+// inFlight is what the runtime said of one call while its tool runs.
+type inFlight struct{ caller, call string }
+
+// calls holds the caller and the id of every call while its tool runs, by the arguments map that call was handed.
+var calls sync.Map // unsafe.Pointer → inFlight
 
 func argsKey(args map[string]any) unsafe.Pointer {
 	return reflect.ValueOf(args).UnsafePointer()
@@ -37,11 +48,32 @@ func CallerOf(args map[string]any) string {
 		return Unproven
 	}
 	if c, ok := calls.Load(argsKey(args)); ok {
-		return c.(string)
+		return c.(inFlight).caller
 	}
 	return Unproven
 }
 
+// CallIDOf is the id of the call that was handed args, as the runtime named it under MetaCall: what a ledger's apply
+// names (buscalls.ApplyRequest.Call) so the operation's author is the caller the runtime proved. Empty for arguments
+// no call was handed, or a call the runtime named no id for; read from `_meta`, never from the arguments.
+func CallIDOf(args map[string]any) string {
+	if args == nil {
+		return ""
+	}
+	if c, ok := calls.Load(argsKey(args)); ok {
+		return c.(inFlight).call
+	}
+	return ""
+}
+
+// callIn is the call id a `tools/call`'s `_meta` names, or empty.
+func callIn(meta map[string]any) string {
+	if s, ok := meta[MetaCall].(string); ok && callID.MatchString(s) {
+		return s
+	}
+	return ""
+}
+
 // callerIn is the caller a `tools/call`'s `_meta` names, or Unproven.
 func callerIn(meta map[string]any) string {
 	if s, ok := meta[MetaCaller].(string); ok && busUser.MatchString(s) {
@@ -50,10 +82,10 @@ func callerIn(meta map[string]any) string {
 	return Unproven
 }
 
-// runAs runs a tool with the caller held for its arguments for as long as it runs.
-func runAs(t Tool, caller string, args map[string]any) (any, error) {
+// runAs runs a tool with the caller and the call's id held for its arguments for as long as it runs.
+func runAs(t Tool, caller, call string, args map[string]any) (any, error) {
 	key := argsKey(args)
-	calls.Store(key, caller)
+	calls.Store(key, inFlight{caller, call})
 	defer calls.Delete(key)
 	return t.Run(args)
 }

go/caller_test.go

@@ -6,25 +6,33 @@ import (
 	"io"
 	"testing"
 	"time"
+
+	"git.novox.be/novox/mesh-sdk/go/buscalls"
 )
 
 // callWith serves one tool that answers the caller CallerOf reads from its arguments, sends it one tools/call
 // with the params given, and returns the caller it answered.
 func callWith(t *testing.T, params map[string]any) string {
+	caller, _ := callAnswering(t, params)
+	return caller
+}
+
+// callAnswering is callWith answering the call's id CallIDOf read too.
+func callAnswering(t *testing.T, params map[string]any) (string, string) {
 	servesAlone(t)
 	t.Helper()
 	inR, inW := io.Pipe()
 	outR, outW := io.Pipe()
 	go func() {
 		_ = ServeOn("tracker", []Tool{{Name: "who", Run: func(args map[string]any) (any, error) {
-			return map[string]any{"caller": CallerOf(args)}, nil
+			return map[string]any{"caller": CallerOf(args), "call": CallIDOf(args)}, nil
 		}}}, inR, outW)
 	}()
 	defer inW.Close()
 	b, _ := json.Marshal(map[string]any{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": params})
 	_, _ = inW.Write(append(b, '\n'))
 	lines := bufio.NewScanner(outR)
-	done := make(chan string, 1)
+	done := make(chan [2]string, 1)
 	go func() {
 		if lines.Scan() {
 			var m struct {
@@ -37,19 +45,20 @@ func callWith(t *testing.T, params map[string]any) string {
 			_ = json.Unmarshal(lines.Bytes(), &m)
 			var answer struct {
 				Caller string `json:"caller"`
+				Call   string `json:"call"`
 			}
 			if len(m.Result.Content) > 0 {
 				_ = json.Unmarshal([]byte(m.Result.Content[0].Text), &answer)
 			}
-			done <- answer.Caller
+			done <- [2]string{answer.Caller, answer.Call}
 		}
 	}()
 	select {
 	case got := <-done:
-		return got
+		return got[0], got[1]
 	case <-time.After(3 * time.Second):
 		t.Fatal("the bundle did not answer the call")
-		return ""
+		return "", ""
 	}
 }
 
@@ -62,6 +71,28 @@ func TestAToolReadsTheCallerTheRuntimeNamed(t *testing.T) {
 	if got != "shanks.node-tools" {
 		t.Fatalf("the tool read caller %q, want the one the runtime named", got)
 	}
+	// The call's id is the runtime's too (ADR 0597 §7): read from `_meta`, never from the arguments, and none when it
+	// is not one token.
+	for _, c := range []struct {
+		args, meta map[string]any
+		want       string
+	}{
+		{map[string]any{}, map[string]any{MetaCaller: "shanks.node-tools", MetaCall: "c-7Hq2"}, "c-7Hq2"},
+		{map[string]any{}, map[string]any{MetaCaller: "shanks.node-tools"}, ""},
+		{map[string]any{MetaCall: "c-forged"}, map[string]any{}, ""},
+		{map[string]any{}, map[string]any{MetaCall: "a b"}, ""},
+		{map[string]any{}, map[string]any{MetaCall: 7}, ""},
+	} {
+		if _, call := callAnswering(t, map[string]any{"name": "who", "arguments": c.args, "_meta": c.meta}); call != c.want {
+			t.Errorf("args %v, meta %v: the tool read call %q, want %q", c.args, c.meta, call, c.want)
+		}
+	}
+	if CallIDOf(map[string]any{"x": 1}) != "" || CallIDOf(nil) != "" {
+		t.Error("arguments no call was handed have a call id")
+	}
+	if MetaCall != buscalls.MetaCall {
+		t.Errorf("the call id's place is %q here and %q in buscalls", MetaCall, buscalls.MetaCall)
+	}
 }
 
 // A caller named in the arguments is not the caller: an argument is the caller's to write.
@@ -91,6 +122,39 @@ func TestACallerInTheArgumentsIsNeverTheCaller(t *testing.T) {
 	if _, err := ParseCallers([]byte(`{"callers":["x"],"more":1}`)); err == nil {
 		t.Error("a list with a field it does not know was read")
 	}
+	// A holder's list per verb (ADR 0627 §2): each verb's entries as above, plus every proved caller (AnyCaller) or
+	// every operator's session (AnyPerson); an unproven caller never, a verb the holder does not serve refused.
+	verbs, err := ParseVerbCallers(`{"publish":["mesh-build-go"],"versions":["*"],"release":["operator","sweep"]}`,
+		[]string{"publish", "versions", "release", "remove"}, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, c := range []struct {
+		verb, caller string
+		want         bool
+	}{{"publish", "ace.mesh-build-go", true}, {"publish", "ace.mesh-build-node", false}, {"versions", "g14.anything", true},
+		{"versions", Unproven, false}, {"release", "person.jo", true}, {"release", "ace.operator", false},
+		{"release", "novox.sweep", true}, {"remove", "novox.sweep", false}} {
+		if got := verbs.Allowed(c.verb, c.caller) == nil; got != c.want {
+			t.Errorf("%s by %q allowed: %v, want %v", c.verb, c.caller, got, c.want)
+		}
+	}
+	if _, err := ParseVerbCallers(`{"mirror":["x"]}`, []string{"publish"}, nil); err == nil {
+		t.Error("a list naming a verb the holder does not serve was read")
+	}
+	if d, _ := ParseVerbCallers(" ", nil, VerbCallers{"publish": {"x"}}); len(d["publish"]) != 1 {
+		t.Error("an empty value is not the holder's defaults")
+	}
+	// As mesh-config resolves the value: the object itself, or written as a string; null is the defaults.
+	for _, raw := range []string{`{"publish":["a"]}`, `"{\"publish\":[\"a\"]}"`, `null`} {
+		c, err := parseConfiguredVerbCallers(json.RawMessage(raw), []string{"publish"}, VerbCallers{"publish": {"a"}})
+		if err != nil || c.Allowed("publish", "ace.a") != nil {
+			t.Errorf("the config value %s read as %v, %v", raw, c, err)
+		}
+	}
+	if ModuleOf("ace.mesh-build-go") != "mesh-build-go" {
+		t.Error("ModuleOf does not read the module of a proved caller")
+	}
 }
 
 // A runtime that names no caller — one from before issue 365, or a call on the subject that names none — is

go/callers.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
+	"slices"
 	"strings"
 )
 
@@ -46,3 +47,85 @@ func (c Callers) Allows(caller string) bool {
 	}
 	return false
 }
+
+// VerbCallers is a holder's trusted list per verb (novox/hq ADR 0627 §2, design 51 *Who may call which verb*): for each
+// verb of the seats it holds, the callers that may call it, each entry read as Callers reads it. Two entries more stand
+// for a whole class: AnyCaller lets every proved caller call the verb (a read the mesh keeps open), AnyPerson every
+// operator's session the runtime proved as person.<name>. It names no seat and no verb: the holder gives its verbs and
+// its defaults, and keeps any rule of its own seat (who may never be on a list) beside it.
+type VerbCallers map[string][]string
+
+// The entries of a VerbCallers list that stand for a class of callers.
+const (
+	AnyCaller = "*"
+	AnyPerson = "operator"
+)
+
+// ParseVerbCallers reads a holder's config value of verb to callers; an empty value is defaults. A verb not among verbs
+// is refused, so a list that names a verb the holder does not serve is said at once.
+func ParseVerbCallers(raw string, verbs []string, defaults VerbCallers) (VerbCallers, error) {
+	if strings.TrimSpace(raw) == "" {
+		return defaults, nil
+	}
+	var c VerbCallers
+	if err := json.Unmarshal([]byte(raw), &c); err != nil {
+		return nil, fmt.Errorf("callers is not a JSON object of verb to callers: %w", err)
+	}
+	for verb := range c {
+		if !slices.Contains(verbs, verb) {
+			return nil, fmt.Errorf("callers names the verb %q, which the holder does not serve", verb)
+		}
+	}
+	return c, nil
+}
+
+// Allowed answers nil when caller, as the runtime proved it, may call verb; else the refusal naming both. An unproven
+// caller is never allowed, not even by AnyCaller.
+func (c VerbCallers) Allowed(verb, caller string) error {
+	if caller == "" || caller == Unproven {
+		return fmt.Errorf("%s: refused: the request carries no caller the tool runner proved", verb)
+	}
+	person := strings.HasPrefix(caller, "person.")
+	for _, entry := range c[verb] {
+		switch entry {
+		case AnyCaller:
+			return nil
+		case AnyPerson:
+			if person {
+				return nil
+			}
+		default:
+			if (Callers{entry}).Allows(caller) {
+				return nil
+			}
+		}
+	}
+	return fmt.Errorf("%s: refused for %s: not on the holder's caller list for %s", verb, caller, verb)
+}
+
+// ModuleOf is the module of a proved module caller, which the runtime names <machine>.<module>.
+func ModuleOf(proved string) string {
+	if _, module, ok := strings.Cut(proved, "."); ok {
+		return module
+	}
+	return proved
+}
+
+// ConfiguredVerbCallers is the holder's list as mesh-config resolved its config value key for this machine (Config):
+// a JSON object of verb to callers, or that object written as a string; an unset or empty value is defaults. A value
+// that cannot be read is an error, never the defaults, so a broken list is said, not widened.
+func ConfiguredVerbCallers(key string, verbs []string, defaults VerbCallers) (VerbCallers, error) {
+	raw, err := Config(key)
+	if err != nil {
+		return nil, fmt.Errorf("the config value %s cannot be read: %w", key, err)
+	}
+	return parseConfiguredVerbCallers(raw, verbs, defaults)
+}
+
+func parseConfiguredVerbCallers(raw json.RawMessage, verbs []string, defaults VerbCallers) (VerbCallers, error) {
+	var text string
+	if err := json.Unmarshal(raw, &text); err == nil || len(bytes.TrimSpace(raw)) == 0 || string(bytes.TrimSpace(raw)) == "null" {
+		return ParseVerbCallers(text, verbs, defaults)
+	}
+	return ParseVerbCallers(string(raw), verbs, defaults)
+}

go/catalogue/amqp_is_not_a_provision_test.go

@@ -50,9 +50,7 @@ func TestNoCatalogueManifestNamesAmqp(t *testing.T) {
 		fset := token.NewFileSet()
 		files, _ := filepath.Glob("*.go")
 		for _, f := range files {
-			// kept_until_delivered.go keeps, deprecated, the names removed while running parts still use them; the second
-			// group removes it and this exemption together.
-			if strings.HasSuffix(f, "_test.go") || f == "kept_until_delivered.go" {
+			if strings.HasSuffix(f, "_test.go") {
 				continue
 			}
 			parsed, err := parser.ParseFile(fset, f, nil, 0)

go/catalogue/artifact_sweep_seat.go

@@ -1,43 +1,7 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // ArtifactSweepSeat is the seat artifact-store-tools holds. Not the seat mesh-artifact-store, the store itself held by
 // distribution, and not the provision artifact-store it delivers.
-const ArtifactSweepSeat = "mesh-artifact-sweep"
-
-// artifactSweepVerbs are the seat's verbs, with the controller's arguments so a caller changes only the seat it asks.
-func artifactSweepVerbs() []Verb {
-	return []Verb{
-		{Name: "artifacts", Description: "Every artifact the mesh made that lives in its artifact store, each with its " +
-			"repository, digest, kind (image or archive) and state: kept, and why (a want names it, or one of the five " +
-			"newest builds of its module in the builder's log), eligible (made, kept for no reason, not yet let go), or " +
-			"unrecorded (in the store and named by nothing the mesh made: never removed). Reads only.",
-			Input: schema(map[string]string{
-				"repository": "only this repository's references, as <module>/<artifact> (the counts stay whole)",
-				"collected":  "\"true\": list the collected references too (counted always)",
-			}, nil, "collected")},
-		{Name: "held", Description: "Whether the artifact store holds each reference given, asked with one HEAD each: " +
-			"held, gone (the store answered 404) or unknown with why. The builder asks it before it reuses a done key. " +
-			"Reads only.",
-			Input: listed(schema(map[string]string{
-				"references": "the artifacts' references, artifact-store://<module>/<artifact>/blobs/sha256:<hex>: a list, " +
-					"or one text separated by commas",
-			}, []string{"references"}), "references")},
-		{Name: "collect", Description: "The artifact store's sweep, now: what is eligible is let go of. Without confirm a " +
-			"dry run: what would be let go, nothing held or deleted. With confirm and why: every kept archive held first, " +
-			"then each eligible artifact let go of, oldest first, an index with the platform manifests no kept index " +
-			"names, each deletion recorded in the hand-act log. Bounded by most (500 by default, at most 5000) and 45 " +
-			"seconds; what is left is said. Never touches a digest the mesh did not make.",
-			Input: schema(map[string]string{
-				"confirm": "\"true\": let go of what is eligible (needs why); without it nothing is done",
-				"why":     "with confirm: why, required and recorded",
-				"most":    "let go of at most this many (500 by default, at most 5000)",
-			}, nil, "confirm")},
-		{Name: "mirrors", Description: "The bases the mesh copied into its artifact store, each kept (a kept build stood on " +
-			"it), eligible (only builds no longer kept stood on it) or unrecorded (no build the builder's log holds stood on " +
-			"it: never removed), by what the builder's log says each build stood on. Records nothing by hand.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "images", Description: "Every container image one machine's want and have name, each with the resources " +
-			"naming it: what the machine keeps when it prunes its images. Reads only.",
-			Input: schema(map[string]string{"node": "the machine's name"}, []string{"node"})},
-	}
-}
+const ArtifactSweepSeat = contractseats.MeshArtifactSweep

go/catalogue/artifacts.go

@@ -2,6 +2,8 @@ package catalogue
 
 import (
 	"strings"
+
+	contractseats "git.novox.be/novox/mesh-contracts/go/seats"
 )
 
 // ArtifactStoreScheme marks a reference to something in the mesh's artifact store, kept without
@@ -17,7 +19,7 @@ const ArtifactStoreScheme = ArtifactStoreProvision + "://"
 // in it — an image id from a genesis build that had nowhere to publish, a package version — is
 // what it was.
 func Recorded(reference string) string {
-	if strings.HasPrefix(reference, ArtifactStoreScheme) {
+	if _, _, seat := InRegistrySeat(reference); seat || strings.HasPrefix(reference, ArtifactStoreScheme) {
 		return reference
 	}
 	if rest, isURL := strings.CutPrefix(reference, "http://"); isURL {
@@ -39,11 +41,97 @@ func isRegistryHost(component string) bool {
 	return component == "localhost" || strings.ContainsAny(component, ".:")
 }
 
-// InArtifactStore reports whether a reference is a kept one, and what it names there.
+// InArtifactStore reports whether a reference is a kept one, and what it names there: `<module>/<artifact>@<digest>`
+// for an image, `<module>/<artifact>/blobs/<digest>` for a bundle or an archive. **It reads both forms** (novox/hq ADR
+// 0605 §9): the older `artifact-store://<path>`, and the form a registry seat answers, `<seat>/<module>/<artifact>@<digest>`
+// through container-image-registry or oci-artifact-registry, whose blob it names the way the older form did.
 func InArtifactStore(reference string) (path string, kept bool) {
+	if seat, rest, ok := InRegistrySeat(reference); ok {
+		if seat == OciArtifactRegistrySeat {
+			name, digest, _ := strings.Cut(rest, "@")
+			return name + "/blobs/" + digest, true
+		}
+		return rest, true
+	}
 	return strings.CutPrefix(reference, ArtifactStoreScheme)
 }
 
+// RegistrySeats are the seats a reference of the registry form names first, the two that front the artifact store
+// (novox/hq ADR 0605 §1, §9).
+var RegistrySeats = []string{ContainerImageRegistrySeat, OciArtifactRegistrySeat}
+
+// The four registry seats (novox/hq ADR 0605 §1), named here so the rest of mesh-sdk takes them from the seat set
+// through catalogue alone (ADR 0625 §3).
+const (
+	NpmPackageRegistrySeat     = contractseats.NpmPackageRegistry
+	GoPackageRegistrySeat      = contractseats.GoPackageRegistry
+	ContainerImageRegistrySeat = contractseats.ContainerImageRegistry
+	OciArtifactRegistrySeat    = contractseats.OciArtifactRegistry
+)
+
+// PublishSeats are the seats an artifact is published through (ADR 0605 §1).
+var PublishSeats = []string{NpmPackageRegistrySeat, GoPackageRegistrySeat, ContainerImageRegistrySeat, OciArtifactRegistrySeat}
+
+// The seats of the vault, the provisioner, the hand acts' record and the conditions' keeper, as the seat set names them,
+// for the rest of mesh-sdk (ADR 0625 §3).
+const (
+	VaultSeat       = contractseats.MeshVault
+	ProvisionerSeat = contractseats.MeshProvisioner
+)
+
+// SeatReference is the reference a build names an image, bundle, archive or upstream copy by once it published it
+// through a registry seat (novox/hq ADR 0605 §9): `<seat>/<module>/<artifact>@sha256:<digest>`, as InRegistrySeat reads
+// it back. The store's address is left out, as in the older form: a reader routes it (Routed).
+func SeatReference(seat, module, artifact, digest string) string {
+	return seat + "/" + module + "/" + artifact + "@" + digest
+}
+
+// InRegistrySeat reads a reference in the form a registry seat answers, `<seat>/<module>/<artifact>@sha256:<digest>`:
+// the seat it came through and the rest. A seat's name holds no dot or port, so no image of an outside registry reads
+// as one, and a kept `artifact-store://` reference is not one.
+//
+// It also reads the holder's own naming of an upstream copy through container-image-registry,
+// `container-image-registry/upstream/<host>/<path>@sha256:<digest>`, whose rest InUpstream reads.
+func InRegistrySeat(reference string) (seat, path string, ok bool) {
+	first, rest, found := strings.Cut(reference, "/")
+	if !found || !strings.Contains(rest, "@sha256:") {
+		return "", "", false
+	}
+	if _, _, upstream := InUpstream(rest); upstream && first == ContainerImageRegistrySeat {
+		return first, rest, true
+	}
+	if strings.Count(rest, "/") != 1 {
+		return "", "", false
+	}
+	for _, s := range RegistrySeats {
+		if first == s {
+			return s, rest, true
+		}
+	}
+	return "", "", false
+}
+
+// UpstreamPrefix opens the holder's own name for an upstream copy it keeps: `upstream/<host>/<path>@<digest>`, after
+// `container-image-registry/` in the seat's form and after `artifact-store://` in the older one.
+const UpstreamPrefix = "upstream/"
+
+// InUpstream reads a path in the holder's naming of an upstream copy, `upstream/<host>/<path>@sha256:<digest>` (the path
+// InRegistrySeat or InArtifactStore gives back): the upstream registry host and the image's path there, with its digest.
+// A host is read as the runtime reads one (a dot, a port, or localhost).
+func InUpstream(path string) (host, image string, ok bool) {
+	rest, found := strings.CutPrefix(path, UpstreamPrefix)
+	if !found {
+		return "", "", false
+	}
+	host, image, found = strings.Cut(rest, "/")
+	name, digest, pinned := strings.Cut(image, "@")
+	if !found || !isRegistryHost(host) || name == "" || strings.HasPrefix(name, "/") || strings.HasSuffix(name, "/") ||
+		strings.Contains(name, "//") || !pinned || !strings.HasPrefix(digest, "sha256:") || strings.Contains(digest, "/") {
+		return "", "", false
+	}
+	return host, image, true
+}
+
 // Routed is a kept reference as a machine fetches it, through the artifact store at `address`
 // (host:port). A reference that is not a kept one is what it was.
 func Routed(reference, address string) string {

go/catalogue/artifacts_test.go

@@ -20,10 +20,51 @@ func TestAReferenceIsRecordedWithoutTheStoresAddress(t *testing.T) {
 		"@novox/sdk@1.2.3":      "@novox/sdk@1.2.3",
 		"gitea/gitea@" + digest: "gitea/gitea@" + digest,
 		"https://registry.example/v2/gitea/config/blobs/" + digest: "https://registry.example/v2/gitea/config/blobs/" + digest,
+		// The form a registry seat answers is recorded as it is (ADR 0605 §9).
+		"container-image-registry/gitea/server@" + digest: "container-image-registry/gitea/server@" + digest,
+		"oci-artifact-registry/gitea/config@" + digest:    "oci-artifact-registry/gitea/config@" + digest,
 	}
 	for announced, want := range cases {
 		if got := Recorded(announced); got != want {
 			t.Errorf("Recorded(%q) = %q, want %q", announced, got, want)
 		}
 	}
+	// And every reader reads both forms: a kept reference and the seat's are fetched from the same place.
+	for reference, want := range map[string]string{
+		ArtifactStoreScheme + "gitea/server@" + digest:       "10.0.0.1:5000/gitea/server@" + digest,
+		"container-image-registry/gitea/server@" + digest:    "10.0.0.1:5000/gitea/server@" + digest,
+		ArtifactStoreScheme + "gitea/config/blobs/" + digest: "http://10.0.0.1:5000/v2/gitea/config/blobs/" + digest,
+		"oci-artifact-registry/gitea/config@" + digest:       "http://10.0.0.1:5000/v2/gitea/config/blobs/" + digest,
+		"registry.example/gitea/server@" + digest:            "registry.example/gitea/server@" + digest,
+		"mesh-artifact-store/gitea/server@" + digest:         "mesh-artifact-store/gitea/server@" + digest,
+		// An upstream copy under the holder's own naming, in both forms.
+		"container-image-registry/upstream/quay.io:443/org/app@" + digest: "10.0.0.1:5000/upstream/quay.io:443/org/app@" + digest,
+		ArtifactStoreScheme + "upstream/quay.io:443/org/app@" + digest:    "10.0.0.1:5000/upstream/quay.io:443/org/app@" + digest,
+	} {
+		if got := Routed(reference, "10.0.0.1:5000"); got != want {
+			t.Errorf("Routed(%q) = %q, want %q", reference, got, want)
+		}
+	}
+	// A build module names what it published in the seat's form, and reads it back as the seat it came through.
+	for _, seat := range RegistrySeats {
+		ref := SeatReference(seat, "gitea", "config", digest)
+		if got, path, ok := InRegistrySeat(ref); !ok || got != seat || path != "gitea/config@"+digest {
+			t.Errorf("SeatReference(%s) = %q, read back as %q %q %v", seat, ref, got, path, ok)
+		}
+	}
+	// The holder's naming of an upstream copy reads through the image seat only, and InUpstream reads its host and path.
+	for reference, want := range map[string]bool{
+		"container-image-registry/upstream/quay.io:443/org/app@" + digest: true,
+		"oci-artifact-registry/upstream/quay.io:443/org/app@" + digest:    false,
+		"container-image-registry/upstream/org/app@" + digest:             false,
+		"container-image-registry/upstream/quay.io/app":                   false,
+	} {
+		_, path, ok := InRegistrySeat(reference)
+		if ok != want {
+			t.Errorf("InRegistrySeat(%q) read %v, want %v", reference, ok, want)
+		}
+		if host, image, up := InUpstream(path); ok && (!up || host != "quay.io:443" || image != "org/app@"+digest) {
+			t.Errorf("InUpstream(%q) = %q %q %v", path, host, image, up)
+		}
+	}
 }

go/catalogue/catalog_seat.go

@@ -1,5 +1,7 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 import "encoding/json"
 
 // CatalogSeat is the seat of the catalog: what the mesh holds of every module (novox/hq ADR 0604 §1). Its states are
@@ -8,29 +10,7 @@ import "encoding/json"
 // no verb. It names no event. What must be built again is no verb: a module whose fingerprint differs from its newest
 // build, which the delivery view derives. The verbs' answers are CatalogModules, CatalogOne, CatalogProvides and
 // CatalogDependents, whose field names are those of the catalog module's tools they replace.
-const CatalogSeat = "mesh-catalog"
-
-// catalogVerbs are the seat's four verbs, each read from its holder's states. Each is optional until the holder that
-// runs serves it (design 33 §7): the module that claimed the seat before serves none of them, and a judge holding them
-// required would read it as outgrown for as long as both claims stand (novox/hq ADR 0604 §6).
-func catalogVerbs() []Verb {
-	return []Verb{
-		{Name: "modules", Optional: true, Description: "Every module the trunk holds, each with its repository, its " +
-			"directory there, the merge commit it was last changed at and its fingerprint (or why it has none): the " +
-			"catalog of the mesh, read from its holder's state. Reads only.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "module", Optional: true, Description: "One module whole: its repository, directory, commit and " +
-			"fingerprint, and its manifest as the trunk holds it. Older versions are in its repository's history. Reads only.",
-			Input: schema(map[string]string{"module": "the module's name"}, []string{"module"})},
-		{Name: "provides", Optional: true, Description: "Which modules provide a provision (a module provides its own " +
-			"name too) and which require it, from the module graph's provision edges. Reads only.",
-			Input: schema(map[string]string{"provision": "the provision, such as postgres-database"}, []string{"provision"})},
-		{Name: "dependents", Optional: true, Description: "The modules whose build edges reach a module, directly or " +
-			"through others (a base, a mesh package it publishes, the build module that builds them): what a change of it " +
-			"builds again, from the module graph. Reads only.",
-			Input: schema(map[string]string{"module": "the module's name"}, []string{"module"})},
-	}
-}
+const CatalogSeat = contractseats.MeshCatalog
 
 // CatalogEntry is one module of the catalog: its repository, its directory there ("." for the root), the merge commit it
 // was last changed at, and its new-form fingerprint or why it has none.

go/catalogue/checker_seat.go

@@ -1,32 +1,9 @@
 package catalogue
 
-// CheckerSeat is the seat mesh-delivery-checker holds.
-const CheckerSeat = "mesh-delivery-checker"
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
 
-// checkerVerbs are the checker seat's verbs: ask a try, read one, end one by hand. Optional until the checker serves them
-// everywhere.
-func checkerVerbs() []Verb {
-	return []Verb{
-		{Name: "try", Optional: true, Description: "Try a pushed head before its pull request is opened: the checker " +
-			"judges it as it judges a pull request's head, merged onto its trunk's head, its unit and integration " +
-			"levels through the build modules, and owes the forge nothing. Answers the try's id at once; try-read " +
-			"reads where it stands. A try of the same head that waits or runs is the answer to a second ask; at most " +
-			"4 wait or run at once, mesh-wide.",
-			Input: schema(map[string]string{"repository": "<owner>/<name>",
-				"head":  "the full commit to try, 40 or 64 hex digits",
-				"trunk": "the trunk commit to merge it onto, or the trunk's branch for its head now; the trunk's head when absent",
-				"tests": "a go test -run pattern: only those tests run, and nothing is kept",
-				"level": "unit or integration: only this level; both when absent"},
-				[]string{"repository", "head"}),
-			Replaces: []string{"sh merge-check.sh", "docker run postgres"}},
-		{Name: "try-read", Optional: true, Description: "Where a try stands, as stored: queued, running, or its end " +
-			"(pass, fail, or error when it could not run), with what was said of it, the head and the trunk commit " +
-			"it was merged onto, the time it took and what failed first. Read-only.",
-			Input: schema(map[string]string{"id": "the try's id, try-<digits>"}, []string{"id"})},
-		{Name: "try-end", Optional: true, Description: "End a try that waits or runs, as error, by hand: say why (kept in " +
-			"what it says). Its place among the tries is free at once and the next try of its head asks anew with a new " +
-			"id. A try that ended already is refused.",
-			Input: schema(map[string]string{"id": "the try's id, try-<digits>", "why": "why it is ended, in words"},
-				[]string{"id", "why"})},
-	}
-}
+// CheckerSeat is the seat mesh-delivery-checker holds.
+//
+// Deprecated: a whole seat's name is mesh-contracts' (seats.MeshDeliveryChecker); kept for its importers until their
+// next change takes it from there (testdata/seat-names.txt).
+const CheckerSeat = contractseats.MeshDeliveryChecker

go/catalogue/config.go

@@ -114,6 +114,7 @@ type configDeclaration struct {
 	Default     any      `json:"default,omitempty"`
 	Required    bool     `json:"required,omitempty"`
 	Runtime     bool     `json:"runtime,omitempty"`
+	RenamedFrom string   `json:"renamed-from,omitempty"`
 }
 
 // MarshalJSON writes a settings declaration exactly as before, and a config declaration without the settings
@@ -125,7 +126,7 @@ func (d SettingDeclaration) MarshalJSON() ([]byte, error) {
 	}
 	return json.Marshal(configDeclaration{Type: d.Type, Description: d.Description, Enum: d.Enum,
 		Minimum: d.Minimum, Maximum: d.Maximum, Pattern: d.Pattern, Trusted: d.Trusted, Predefined: d.Predefined,
-		Default: d.Default, Required: d.Required, Runtime: d.Runtime})
+		Default: d.Default, Required: d.Required, Runtime: d.Runtime, RenamedFrom: d.RenamedFrom})
 }
 
 // validationProblems is what is wrong with a declaration's validation, and its default against it.

go/catalogue/config_test.go

@@ -132,6 +132,33 @@ func TestAConfigManifestIsWrittenBackInItsOwnForm(t *testing.T) {
 	if !bytes.Equal(raw, twice) {
 		t.Fatalf("read again it is written\n%s\nwhere it was\n%s", twice, raw)
 	}
+
+	// The registry milestone's words round-trip the same (design 32): a config value's old name, an artifact's series
+	// and contracts marker, the series a module accepts of a package; absent, a series is 0.1.
+	declared := []byte(`{"module":"c","version":"1","config":{"font":{"type":"string","renamed-from":"font-name"}},
+		"packages":{"mesh-sdk":"0.2"},
+		"build":{"artifacts":[{"name":"go","kind":"package","language":"go","paths":["go"],"series":"0.2",
+			"generated-from":"seats"},{"name":"lib","kind":"package","language":"typescript"}]}}`)
+	m, err = decodeForTest(declared)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if m.Settings["font"].RenamedFrom != "font-name" || m.AcceptedSeries("mesh-sdk") != "0.2" ||
+		m.AcceptedSeries("mesh-contracts") != DefaultSeries || m.Build.Artifacts[0].SeriesOf() != "0.2" ||
+		m.AcceptedSeries("mesh-sdk", "0.1") != "0.2" || m.AcceptedSeries("mesh-contracts", "0.10", "x", "0.3", "1.0") != "0.3" ||
+		m.Build.Artifacts[0].GeneratedFrom != "seats" || m.Build.Artifacts[1].SeriesOf() != "0.1" {
+		t.Fatalf("read %+v", m)
+	}
+	raw, _ = json.Marshal(m)
+	for _, said := range []string{`"renamed-from":"font-name"`, `"packages":{"mesh-sdk":"0.2"}`, `"series":"0.2"`,
+		`"generated-from":"seats"`} {
+		if !strings.Contains(string(raw), said) {
+			t.Errorf("written back without %s: %s", said, raw)
+		}
+	}
+	if strings.Count(string(raw), `"series"`) != 1 {
+		t.Errorf("a series nobody said is written: %s", raw)
+	}
 }
 
 // A module in the settings form is written back byte for byte as before.

go/catalogue/control_records_seats.go

@@ -1,54 +1,12 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // The two seats.
 const (
-	WantsSeat    = "mesh-wants"
-	HandActsSeat = "mesh-hand-acts"
+	WantsSeat    = contractseats.MeshWants
+	HandActsSeat = contractseats.MeshHandActs
 )
 
 // controlRecordsDecision is the record that made the two seats.
 const controlRecordsDecision = "novox/hq ADR 0565"
-
-// wantsVerbs are the assigner's verbs on mesh-wants (ADR 0565 clauses 7, 8, 9, 15).
-func wantsVerbs() []Verb {
-	return []Verb{
-		{Name: "upgrade", Description: "Whether each module's new builds wait for a person: its policy (roll, together or record) " +
-			"and where it comes from (a person, the module, the bus, its irreplaceable data, the default); the bus is never " +
-			"rolled. With module, that one; with module, policy and why, a person's choice for it, recorded as a hand act; " +
-			"with policy default, the choice taken back. With compare, each node's own composition and the assigner's findings.",
-			Input: schema(map[string]string{
-				"module":  "one module",
-				"policy":  "with module: roll, together, record, or default to take a person's choice back",
-				"why":     "with policy: why, required and kept",
-				"compare": "\"true\": each node's own composition, by its digest, and the assigner's findings",
-			}, nil, "compare")},
-		{Name: "bus", Description: "What a bus upgrade would do: the fingerprint of the bus module each node runs against the " +
-			"indexer's newest, and the last bus steps from the hand-act log and the assigner's puts of the bus. Read-only: " +
-			"the step itself is the put on the operator's warrant.",
-			Input: schema(map[string]string{}, nil)},
-	}
-}
-
-// handActsVerbs are mesh-hand-acts' verbs (ADR 0565 clause 10), as the controller's took them.
-func handActsVerbs() []Verb {
-	return []Verb{
-		{Name: "hand-act", Description: "Record one act done by hand: what, why, its cause in a word or a condition's kind " +
-			"(the word a second act for the same reason uses) and the condition it addresses. Who did it is the caller the " +
-			"runtime proves, never said by the caller. Said as act-recorded.",
-			Input: schema(map[string]string{
-				"what":      "what was done, in a line",
-				"why":       "why it had to be done by hand",
-				"cause":     "the cause in a word, or a condition's kind",
-				"condition": "the key of the condition it addressed, if any (optional)",
-				"verb":      "the act's verb in the log: a repair when absent, `hand-act drill` for a drill, or a recorder's own",
-			}, []string{"what", "why"})},
-		{Name: "hand-acts", Description: "What was done by hand lately, over this log and the controller's: who, why and the " +
-			"cause of each, and the causes recorded twice within a fortnight (a healer is wanted).",
-			Input: schema(map[string]string{"days": "how many days back (default 14)", "cause": "only this cause",
-				"who": "only acts whose who contains this", "warrants": "\"true\": every warrant recorded"}, nil, "warrants")},
-		{Name: "warranted", Description: "Record what a module did on the operator's warrant: who chose, through which channel, " +
-			"with which proofs and which answer read from the router's own record of that module's ask, never from the " +
-			"caller; once per ask. Refused for an ask still open, ended without a choice, or not that module's.",
-			Input: schema(map[string]string{"asker": "the module that asked", "ask": "its ask's id"}, []string{"asker", "ask"})},
-	}
-}

go/catalogue/declaration.go

@@ -238,6 +238,11 @@ type Rendering struct {
 	// when no holder is reachable yet; see seat_into.go for which seats are answered.
 	SeatReach map[string]string
 
+	// SeatHolder is the module holding each seat SeatReach answers, by seat, from the holdings the composition has (novox/hq
+	// design 51, issue 1966 ENG-10): written beside an image routed through the seat, for the node-engine to wait on when its
+	// pull fails. Absent for a seat with no holder on record.
+	SeatHolder map[string]string
+
 	// Built is every `<module>/<artifact>` the mesh has built. What tells a reference recorded
 	// with an address — before references were kept without one — from an image a module runs
 	// straight from a public registry.
@@ -273,8 +278,8 @@ type Rendering struct {
 	Hands       bool
 	Provisioner string
 	// Assigned is, by module, whether the vault judged it handed (AssignmentHands of the plan in its assignment), as the
-	// vault answered the node composing itself; where it names a module, Handing follows it alone (issue 774). Nil, or a
-	// module it does not name, is judged by the manifest and the machine, as the composer of the plans does.
+	// vault answered the node composing itself. Never the rule: the node hands by the manifest, its build and the machine,
+	// and reads this only to say where the vault disagrees (issue 1966). Nil where the vault said nothing.
 	Assigned map[string]bool
 }
 

go/catalogue/decode.go

@@ -1,7 +1,9 @@
 package catalogue
 
 import (
+	"bytes"
 	"encoding/json"
+	"fmt"
 	"strings"
 )
 
@@ -9,15 +11,65 @@ import (
 // contract knows as it declares it, and a field it does not know set aside and named (SetAside), never refused. It
 // judges nothing: no name, seat, bus or catalogue rule is applied, since the indexer judged the manifest once and its
 // verdict is in the indexer's state (delivery.VerdictsBucket); a reader takes the verdict beside it
-// (delivery.TakeVerdict). An error is only bytes that are no manifest: not JSON, or a field of the wrong shape.
+// (delivery.TakeVerdict). An error is only bytes that are no manifest: not JSON, a field of the wrong shape, or one field
+// given twice in one object at any depth, named by its path: a decoder keeps the last of two equal keys without a word,
+// so a merge of two branches that each added the field would lose one side silently (as mesh-catalog's checks/manifests
+// refuses it).
 func Decode(raw []byte) (Manifest, error) {
 	var m Manifest
 	if err := json.Unmarshal(raw, &m); err != nil {
 		return Manifest{}, err
 	}
+	if twice := givenTwice(raw); twice != "" {
+		return Manifest{}, fmt.Errorf("the field %s is given twice; a manifest gives each field once", twice)
+	}
 	return m, nil
 }
 
+// givenTwice is the first field an object of raw gives twice, as its path (`invokes`, `build.artifacts[0].env`), or empty.
+func givenTwice(raw []byte) string {
+	d := json.NewDecoder(bytes.NewReader(raw))
+	var walk func(path string) string
+	walk = func(path string) string {
+		t, err := d.Token()
+		if err != nil {
+			return ""
+		}
+		switch t {
+		case json.Delim('{'):
+			seen := map[string]bool{}
+			for d.More() {
+				k, err := d.Token()
+				if err != nil {
+					return ""
+				}
+				key, _ := k.(string)
+				at := key
+				if path != "" {
+					at = path + "." + key
+				}
+				if seen[key] {
+					return at
+				}
+				seen[key] = true
+				if twice := walk(at); twice != "" {
+					return twice
+				}
+			}
+			_, _ = d.Token()
+		case json.Delim('['):
+			for i := 0; d.More(); i++ {
+				if twice := walk(fmt.Sprintf("%s[%d]", path, i)); twice != "" {
+					return twice
+				}
+			}
+			_, _ = d.Token()
+		}
+		return ""
+	}
+	return walk("")
+}
+
 // SetAside names what Decode set aside of this manifest: each field it does not know, as the decoder words the first
 // and with the path of every one it read without, or "" when it knew every field. A reader says it in its own words
 // (its journal, its finding) and reads the rest; the part that needs the field takes the newer package (ADR 0578 §6).

go/catalogue/delivery_seat.go

@@ -1,7 +1,9 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // DeliverySeat is the seat mesh-delivery holds.
-const DeliverySeat = "mesh-delivery"
+const DeliverySeat = contractseats.MeshDelivery
 
 // RemovedDeliveryVerbs are the delivery seat's verbs release 6 removed (novox/hq ADR 0539 clause 17): with no plan the
 // gate keeps the merge's states and derives nothing after the merge. Each stays in deliveryVerbs as an optional row
@@ -15,76 +17,6 @@ var RemovedDeliveryVerbs = map[string]string{
 	"retire-history": "nothing to retire: the gate keeps no delivery after its merge",
 }
 
-// deliveryRemovedInR6 is the row of a verb release 6 removed from the delivery seat.
-func deliveryRemovedInR6(name string) Verb {
-	return Verb{Name: name, Description: "Removed in R6 (ADR 0539): refused by name, naming its replacement: " +
-		RemovedDeliveryVerbs[name], Input: schema(nil, nil), Optional: true}
-}
-
-// deliveryVerbs are the delivery seat's tools: what reads the merges and checks, and the acts of a person and healer H2
-// on a merge (ADR 0539 clause 17).
-func deliveryVerbs() []Verb {
-	return []Verb{
-		{Name: "deliveries", Description: "Every delivery not final, and those that ended in the last day, one line " +
-			"each: its id (owner/repository@commit), its state, its group, what it waits for and since when. Narrowed " +
-			"by state, repository or group.",
-			Input: schema(map[string]string{"state": "one state, e.g. delivering or held",
-				"repository": "owner/repository", "group": "a group's id (its branch name)",
-				"all": "\"true\": the final ones of the last thirty days too"}, nil, "all")},
-		deliveryRemovedInR6("times"),
-		{Name: "show", Description: "One delivery or group whole: its delivery plan (what it builds, what each " +
-			"machine receives, what is not an ordinary send), every transition with when and why, the machine " +
-			"steps of its walk, its group and its order.",
-			Input: schema(map[string]string{"id": "a delivery's id, or a group's"}, []string{"id"})},
-		{Name: "groups", Description: "Every delivery group: its members in order, why each pair is ordered " +
-			"(declared, built by, version skew, engine before controller, by name), its composed check and its " +
-			"state, derived from its members.",
-			Input: schema(map[string]string{"all": "\"true\": the groups that ended too"}, nil, "all")},
-		deliveryRemovedInR6("what-if"),
-		{Name: "checks", Description: "What the mesh's checks said of a pull request's head or of one commit: each " +
-			"of the commit's mesh statuses (mesh/check, the one a main requires from R4e, hq's mesh/repo-check, " +
-			"mesh/delivery, …) with its state, " +
-			"description and when it was set; the merge check's full verdict as the controller said it — each " +
-			"layer's summary, the machine that ran it, when, its build id and its report; and whether the branch's " +
-			"protection would let it merge, every required status being success.",
-			Input: schema(map[string]string{"repository": "owner/repository",
-				"number": "a pull request's number: its head is read",
-				"commit": "a commit's sha, or the start of one, instead of a pull request"}, []string{"repository"}),
-			// Added after the seat's first holder shipped: optional until mesh-delivery serves it everywhere.
-			Optional: true},
-		{Name: "table", Description: "The state table every delivery runs by: each transition with its guard, " +
-			"each state's bound and what healer H2 may do once it has passed; and the machine steps' table.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "stalled", Description: "Every delivery held past its state's bound, with the transition the table " +
-			"lets healer H2 take for it, or none.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "recheck", Description: "Check a rejected or ready delivery again: it goes back to proposed and the " +
-			"controller is asked for its check. With why.",
-			Input: schema(map[string]string{"id": "the delivery's id", "why": "why, kept with the transition"},
-				[]string{"id", "why"})},
-		deliveryRemovedInR6("release"),
-		deliveryRemovedInR6("stop"),
-		{Name: "close", Description: "Healer H2's verb: take the one transition the table names for a delivery held " +
-			"past its bound. Refused for any other.",
-			Input: schema(map[string]string{"id": "the delivery's id", "why": "the condition it answers"},
-				[]string{"id", "why"})},
-		deliveryRemovedInR6("retire-history"),
-		{Name: "settle", Description: "Ask the operator to settle deliveries held because their merge reached the " +
-			"trunk without a passing check: one ask on the operator's channel for all of them, as an Approve is asked. " +
-			"The verb moves nothing; on the operator's answer each goes to merged, and whether it is on the machines " +
-			"is derived as for any merge (novox/hq ADR 0556). Refused for a delivery not held, or held for another " +
-			"reason, naming why.",
-			Input: map[string]any{"type": "object", "additionalProperties": false, "required": []string{"ids", "why"},
-				"properties": map[string]any{
-					"ids": map[string]any{"type": "array", "items": map[string]any{"type": "string"}, "minItems": 1,
-						"description": "the held deliveries' ids (owner/repository@commit)"},
-					"why": map[string]any{"type": "string", "description": "why they may be settled, shown to the operator"},
-				}},
-			// Added after the seat's release 6 holder shipped: optional until the gate serves it everywhere.
-			Optional: true},
-	}
-}
-
 // SeatSays is whether a consumed `<seat>.<event>` names one of the seat's own events: the seat emits it,
 // exactly or by one of its patterns (`log.*`). A consumed name whose emitter is a seat and whose event the
 // seat does not emit is the event of the module of that name (novox/hq ADR 0239): mesh-delivery is a seat

go/catalogue/engine_compose_candidate_test.go

@@ -2,7 +2,7 @@ package catalogue
 
 import "testing"
 
-// The node-engine's compose-candidate verb (ADR 0593 §7) is optional, asks the candidate, and takes input as a switch.
+// The node-engine's compose-candidate verb (ADR 0593 §7) is optional, asks the candidate, and takes input as a boolean, as the engine and the checker read it.
 func TestTheEngineServesComposeCandidate(t *testing.T) {
 	for _, v := range EngineVerbs() {
 		if v.Name != "compose-candidate" {
@@ -10,7 +10,7 @@ func TestTheEngineServesComposeCandidate(t *testing.T) {
 		}
 		props, _ := v.Input["properties"].(map[string]any)
 		input, _ := props["input"].(map[string]any)
-		if !v.Optional || props["candidate"] == nil || input == nil || input["enum"] == nil {
+		if !v.Optional || props["candidate"] == nil || input == nil || input["type"] != "boolean" {
 			t.Fatalf("compose-candidate reads as %+v", v)
 		}
 		return

go/catalogue/engine_seat.go

@@ -1,85 +1,32 @@
 package catalogue
 
-// EngineSeat is the node seat every node's engine holds.
-const EngineSeat = "node-engine"
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
 
-// EngineVerbs are the node-engine seat's verbs, in the order ADR 0563 §1 names them.
+// EngineSeat is the node seat every node's engine holds, from the seat set. The seat is defined whole in mesh-contracts
+// (its contract, go/seats/nodeengine, and its client, go/clients/nodeengineclient): its verbs' and events' names and
+// message types are taken from there (ADR 0627 §4).
+const EngineSeat = contractseats.NodeEngine
+
+// EngineVerbs are the node-engine seat's verbs, in the order ADR 0563 §1 names them: its definition's, read from the
+// generated seat list (design 26), each with its description and its input's schema as discovery shows them.
 func EngineVerbs() []Verb {
-	return []Verb{
-		{Name: "hand-over", Description: "Hand a directory this machine uses as found to the mesh (novox/hq ADR 0563 §3, " +
-			"§5): the engine judges the path as it does every hand-over (absolute, as it states it, used as found, " +
-			"reached through no link) and refuses in words, or asks the operator on their channel at the level approve, " +
-			"binding the owner, group and mode it will set. Nothing changes on the call: only the operator's yes hands " +
-			"it over. One ask is open per path; acts shows where it stands.",
-			Input: schema(map[string]string{"path": "the directory's absolute path, as the engine states it",
-				"why": "why it is asked, in words the operator reads"}, []string{"path"})},
-		{Name: "access-act", Description: "Ask the operator for the take act on a library whose root holds data outside its " +
-			"group (novox/hq ADR 0328 §7, ADR 0563 §3, §4), on the library's home engine: the access as declared and its " +
-			"root as last declared, judged and refused in words or asked at the level approve. Only the operator's yes " +
-			"sets the library's group, group write and setgid under its root. One ask is open per access.",
-			Input: schema(map[string]string{"act": "the act: take", "access": "the access, library:<name>",
-				"why": "why it is asked, in words the operator reads"}, []string{"act", "access"})},
-		{Name: "judge-directories", Description: "Which of this machine's declared directories the engine would refuse to " +
-			"make or keep, one line each (novox/hq ADR 0563 §2). Read-only: changes no owner or mode.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "setuid-search", Description: "Throw away the engine's last search for setuid programs and start a full one " +
-			"(novox/hq ADR 0563 §2); until it completes root-free answers that the machine is not judged yet. Refused while " +
-			"one runs, and when one was started within the hour, naming when the next may start.",
-			Input: schema(map[string]string{"why": "why it is asked, in words"}, nil)},
-		{Name: "root-free", Description: "Whether this machine is root-free (novox/hq ADR 0259 §8, ADR 0563 §6): free only " +
-			"on the engine's own verdict, at most fifteen minutes old, that the account agents run as cannot become root " +
-			"without a person, and the login shell's execute not served here. Anything else is no pass, and says why. " +
-			"Answered by this machine's engine alone.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "acts", Description: "Every act this machine's engine was asked through this seat (novox/hq ADR 0563 §9): " +
-			"each hand-over, access act and setuid search, open, done or refused, with who asked, the ask and the " +
-			"operator's warrant. Read-only.",
-			Input: schema(map[string]string{"limit": "at most this many, newest", "id": "one act, by its id"}, nil)},
-		// The packages this node's compositions declare (novox/hq ADR 0565 §6, §15): optional until every engine serves it.
-		{Name: "packages", Optional: true, Description: "The packages this machine's compositions declare, present or absent, " +
-			"each with the modules that declare it, as the engine keeps them in its key of `packages`; until the controller " +
-			"hands its lease away, beside the controller's mirror for this machine and their difference. With write, the " +
-			"key written again from what the engine composed.",
-			Input: schema(map[string]string{"write": "\"true\": write this machine's key again from what the engine composed"}, nil, "write")},
-		// Read-only (issue 774): why a module waits for a yes, or what its next apply would change. Optional until every
-		// engine serves it.
-		{Name: "composition", Optional: true, Description: "One module's composition on this machine beside what runs of " +
-			"it, read-only: the composition its want's build has in the bucket composed-<node> (the latest revision, or the " +
-			"one whose digest is given, from the revisions the bucket keeps), the digest of each kept revision, what runs " +
-			"(applied, its have, or the kept declaration), its want and have (phase running, failed, held or waiting-yes, " +
-			"and the digest that waits for a yes), and the move's judgement with its words: why a record module waits for " +
-			"a yes. With diff, every resource added, removed or changed, a provider's received file naming the consumers " +
-			"that join or leave.",
-			Input: schema(map[string]string{"module": "the module, as placed on this machine; node for the node's own",
-				"digest": "a composition's digest (sha256:…), to read that revision rather than the latest",
-				"diff":   "\"true\": list the resources that differ from what runs"}, []string{"module"})},
-		// The recovery of a composition that failed (issue 774, 2026-10-31: ace kept route-proxy failed for a vault that
-		// answered again a minute later). Optional until every engine serves it.
-		{Name: "compose", Optional: true, Description: "Compose this machine's modules now and say how it went, so a " +
-			"composition that failed, or a module held, recovers without a restart: what the pass refused or held, each " +
-			"with why, and when the engine composes again on its own after a seat that did not answer (a deadline, no " +
-			"responders: retried with a growing wait; a refusal never). With module, that module's apply is also tried " +
-			"again. Changes only what a pass the engine makes on its own would change.",
-			Input: schema(map[string]string{"module": "a module placed on this machine whose apply is also tried again (optional)"}, nil)},
-		// A composition that does not exist yet (novox/hq ADR 0593 §7). Optional until every engine serves it: a node
-		// whose engine does not is a node that does not answer (§9).
-		{Name: "compose-candidate", Optional: true, Description: "Compose a check's candidate on this machine in shadow, " +
-			"with its own sealed values and the indexer's manifest verdicts, and say per module placed here whether it " +
-			"composes (with its digest and whether the candidate changes it), is refused by the candidate or is held " +
-			"without it, each with why, and the verdict of the machine's own composition (novox/hq ADR 0593 §7). Read-only: " +
-			"applies nothing and writes nothing. Answered by this machine's engine alone, within the asker's bound.",
-			Input: schema(map[string]string{"candidate": "the key of the indexer's candidate, <group>.<heads hash>",
-				"input": "\"true\": also answer the composition input the candidate was composed from, for the sandbox path"},
-				[]string{"candidate"}, "input")},
+	s, _ := seatIn(defaultSeats, EngineSeat)
+	return append([]Verb(nil), s.Serves...)
+}
+
+// EngineEvents are what the seat says: of an act, each naming the act, the path or access, the caller as the runtime
+// proved it and the ask (ADR 0563 §1), and that what its engine reads of a manifest changed (ADR 0618 §4).
+var EngineEvents = func() []string {
+	s, _ := seatIn(defaultSeats, EngineSeat)
+	return append([]string(nil), s.Emits...)
+}()
+
+// seatIn is the seat of that name in a list.
+func seatIn(list []Seat, name string) (Seat, bool) {
+	for _, s := range list {
+		if s.Name == name {
+			return s, true
+		}
 	}
-}
-
-// EngineEvents are what the seat says of an act, each naming the act, the path or access, the caller as the runtime
-// proved it and the ask (ADR 0563 §1).
-var EngineEvents = []string{"asked", "done", "refused"}
-
-// engineSeat is the seat's row in the closed set.
-func engineSeat() Seat {
-	return Seat{Name: EngineSeat, Scope: ScopeNode, Serves: EngineVerbs(), Emits: append([]string(nil), EngineEvents...),
-		HeldByTheEngine: true, Decision: "novox/hq ADR 0563"}
+	return Seat{}, false
 }

go/catalogue/enrolment_seat.go

@@ -1,7 +1,9 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // EnrolmentSeat is the seat mesh-enrolment.
-const EnrolmentSeat = "mesh-enrolment"
+const EnrolmentSeat = contractseats.MeshEnrolment
 
 // The seat's six verbs (ADR 0587 §1, §4-§8).
 const (
@@ -29,62 +31,3 @@ var EnrolmentEvents = []string{EnrolmentIssuedEvent, NodeEnrolledEvent, Enrolmen
 
 // enrolmentDecision is the record that made the seat.
 const enrolmentDecision = "novox/hq ADR 0587"
-
-// enrolmentVerbs are the seat's verbs: what reads all it holds and does by hand all it does (ADR 0587 §8). Not optional:
-// the seat is new with its holder, so no holder of before serves fewer.
-func enrolmentVerbs() []Verb {
-	str := func(description string) map[string]any {
-		return map[string]any{"type": "string", "description": description}
-	}
-	return []Verb{
-		{Name: EnrolmentVerbIssue, Description: "Issue a one-time token for a new machine, on the operator's Approve: " +
-			"refused at once, naming every finding, for a name that is not a node name or that a node record, a placement " +
-			"key or an open enrolment holds, and for every call before the controller's lease is handed away. Otherwise " +
-			"reserves the lowest free private-network address, asks the operator under the seat's own name and, on the " +
-			"warrant, adds the node to placement with its tunnel key, asks the vault for the token and says enrolment-issued. " +
-			"The token itself is read only through tokens.",
-			Input: schema(map[string]string{
-				"node":    "the new machine's name in the mesh",
-				"why":     "why it joins, shown to the operator with the ask",
-				"expires": "how long the token lasts, a duration such as 1h or 24h: one hour when not given, at most 24 hours",
-				// The operator's decision of 2026-11-02 01:05: the tunnel key is given at issue, so on the Approve the node
-				// enters placement with it and the hub peers it before redeem.
-				"overlay_key": "the new machine's private network (tunnel) public key, as `nox-mesh-host key` prints it",
-			}, []string{"node", "why", "overlay_key"})},
-		{Name: EnrolmentVerbRedeem, Description: "Spend a token: asked by a joining node-engine dialled as enrol.<node> " +
-			"alone, with the public halves of its keys and its identity key's proof over them. Spends the token, asks the " +
-			"vault for the node's account and certificate, writes the node into placement, and answers the account sealed " +
-			"to the node, its certificate and the vault's public half, signed by the vault. Asked again with the same keys " +
-			"it finishes what is not done and answers the same; with other keys it is refused.",
-			Input: map[string]any{"type": "object", "additionalProperties": false,
-				"required": []string{"node", "public_key", "sealing_key", "proof"},
-				"properties": map[string]any{
-					"node":        str("the node the token was issued for"),
-					"public_key":  str("the identity key's public half, base64"),
-					"overlay_key": str("the private network key's public half"),
-					"sealing_key": str("the sealing key's public half, which the account is sealed to"),
-					"serving_key": str("the serving key's public half, which the certificate binds"),
-					"profile":     map[string]any{"type": "object", "description": "what the machine is, as its record says it"},
-					"tunnel":      map[string]any{"type": "object", "description": "a tunnel found on the machine: everything but its private key"},
-					"proof":       str("the identity key's signature over the redeem's proof bytes (delivery.RedeemProof), base64"),
-				}}},
-		{Name: EnrolmentVerbConfirm, Description: "Confirm an enrolment: asked by the node-engine dialled as its own " +
-			"node login alone, the runtime's proof of that caller being the confirmation. Says node-enrolled and ends the " +
-			"enrolment.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: EnrolmentVerbRevoke, Description: "End an enrolment at any stage, with why, without an Approve: withdraws " +
-			"an open ask, deletes the node's key and its address, has the vault retire an account it already minted for " +
-			"it, records the act as a hand act and says enrolment-revoked.",
-			Input: schema(map[string]string{"node": "the node", "why": "why, recorded with the hand act"},
-				[]string{"node", "why"})},
-		{Name: EnrolmentVerbTokens, Description: "Read every open enrolment, or one: its stage, expiry, ask and revision, " +
-			"the bucket's fill against its cap. For a node at live, its " +
-			"token sealed to the operator key, asked of the vault at that moment and relayed as the vault sealed it. With " +
-			"history, the ended enrolments from the seat's events, as far back as the events are kept.",
-			Input: schema(map[string]string{"node": "one node", "history": "\"true\": the ended enrolments too"},
-				nil, "history")},
-		{Name: EnrolmentVerbAgain, Description: "Raise an issue's ask again when the operator's channel does not hold it, " +
-			"and nothing more.",
-			Input: schema(map[string]string{"node": "the node whose ask is raised again"}, []string{"node"})},
-	}
-}

go/catalogue/environment_into.go

@@ -1,12 +1,14 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // EnvironmentSeat and LoginShellSeat are the seats whose holders may place what the modules
 // contributed: the account's environment, and the login shell's code.
 const (
-	EnvironmentSeat = "node-environment"
-	LoginShellSeat  = "node-login-shell"
+	EnvironmentSeat = contractseats.NodeEnvironment
+	LoginShellSeat  = contractseats.NodeLoginShell
 	// PowerSeat is the seat whose holder places code for the power moments (novox/hq ADR 0211).
-	PowerSeat = "node-power"
+	PowerSeat = contractseats.NodePower
 )
 
 // Where an environment entry on PATH goes: before the account's existing PATH, or after it.

go/catalogue/files.go

@@ -1,11 +1,9 @@
 package catalogue
 
-import (
-	"strings"
-)
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
 
 // FilesSeat is the role that reads and manages a node's files and accounts (novox/hq ADR 0394).
-const FilesSeat = "node-files"
+const FilesSeat = contractseats.NodeFiles
 
 // FilesOwnedPaths is the word the holder of node-files is given beside the secret places: a JSON object from
 // each absolute path a module owns on its node to "module (tool to use)" (novox/hq ADR 0394 §5).
@@ -16,73 +14,3 @@ const (
 		"secret is kept, or a known credential file, is refused by name"
 	overrideWord = "a reason, to change a path a module owns anyway (optional)"
 )
-
-// filesVerbs is the contract every holder of node-files serves (novox/hq ADR 0394 §1): the reads of node-reads,
-// with their descriptions restated for the operator's account, and the writes.
-func filesVerbs() []Verb {
-	var verbs []Verb
-	for _, v := range readsVerbs() {
-		v.Description = strings.Replace(v.Description,
-			"Read as the holder's own account, which holds no secret: a component it may not reach says so.",
-			"", 1)
-		v.Description = strings.TrimSpace(v.Description) + " Read " + filesAsAccount + "."
-		verbs = append(verbs, v)
-	}
-	write := func(name, description string, in map[string]string, required []string, optional []string, replaces ...string) Verb {
-		in["reason"] = "why the file is changed, for the audit trail"
-		in["override"] = overrideWord
-		return Verb{Name: name, Description: description + " Refuses a path a module owns " +
-			"unless override names a reason; done as the node's operator account, through sudo -n where its rights do not reach.",
-			Input: schema(in, append(required, "reason"), append(optional, "override")...), Replaces: replaces}
-	}
-	return append(verbs,
-		write("write", "Write one text file whole, replacing what it holds; the old content goes to the node's trash.",
-			map[string]string{"path": "an absolute path", "content": "the text to write",
-				"mode": "the file's mode, such as 0644 (optional)"},
-			[]string{"path", "content"}, []string{"mode"}, "tee", ">"),
-		write("copy", "Copy a file or directory to a path on this node. A target on another node (<node>:/path) is "+
-			"refused: copying between nodes comes in step 2 (issue 903). An existing target is overwritten, the old one "+
-			"kept in the node's trash for 7 days.",
-			map[string]string{"from": "an absolute path", "to": "an absolute path on this node"},
-			[]string{"from", "to"}, nil, "cp", "cp -a", "ssh <node> cp"),
-		write("move", "Move or rename a file or directory. A target on another node is refused: copying between nodes "+
-			"comes in step 2 (issue 903). An existing target is overwritten, the old one kept in the node's trash for 7 days.",
-			map[string]string{"from": "an absolute path", "to": "an absolute path"},
-			[]string{"from", "to"}, nil, "mv"),
-		write("delete", "Delete a file or directory into the node's trash, where restore can bring it back.",
-			map[string]string{"path": "an absolute path", "recursive": "\"true\": delete a directory with what it holds"},
-			[]string{"path"}, []string{"recursive"}, "rm", "rm -r"),
-		write("mkdir", "Make a directory.",
-			map[string]string{"path": "an absolute path", "parents": "\"true\": make the missing parents too"},
-			[]string{"path"}, []string{"parents"}, "mkdir", "mkdir -p"),
-		write("chmod", "Change the mode of a file or directory.",
-			map[string]string{"path": "an absolute path", "mode": "the mode, such as 0644 or u+x",
-				"recursive": "\"true\": also everything under a directory"},
-			[]string{"path", "mode"}, []string{"recursive"}, "chmod"),
-		write("chown", "Change the owner and group of a file or directory.",
-			map[string]string{"path": "an absolute path", "owner": "an account's name or number",
-				"group": "a group's name or number (optional)", "recursive": "\"true\": also everything under a directory"},
-			[]string{"path", "owner"}, []string{"group", "recursive"}, "chown", "chgrp"),
-		Verb{Name: "upload", Description: "Send one file of this node into a bucket of the object store, over a short signed link " +
-			"and never over the bus; answers the key (the file's SHA-256 when none is given), the size and the SHA-256. " +
-			"At most 100 MiB. A place a secret is kept, a known credential file, or a link to one is refused by name, " +
-			"before anything is sent. Read " + filesAsAccount + ".",
-			Input: schema(map[string]string{"path": "an absolute path to a file", "bucket": "the bucket the file goes into",
-				"key": "the object's key (optional; the file's SHA-256 when not given)"}, []string{"path", "bucket"})},
-		// download is a plain Verb, not through write(): write() types its optional arguments as true/false
-		// switches, which a hash and a reason are not (issue 1719).
-		Verb{Name: "download", Description: "Write one object of a bucket to a file of this node, over a short signed link and " +
-			"never over the bus; the old file goes to the node's trash. At most 100 MiB. The bytes must hash to sha256, or to " +
-			"the key when the key is a SHA-256; otherwise no file is written. Refuses a path a module owns " +
-			"unless override names a reason; done as the node's operator account, through sudo -n where its rights do not reach.",
-			Input: schema(map[string]string{"bucket": "the bucket", "key": "the object's key", "path": "an absolute path",
-				"sha256":   "the SHA-256 the bytes must have (optional; the key when that is a SHA-256)",
-				"reason":   "why the file is changed, for the audit trail",
-				"override": overrideWord}, []string{"bucket", "key", "path", "reason"})},
-		Verb{Name: "trash", Description: "What the node's trash holds: each deleted or replaced item with its id, " +
-			"original path and when it went.",
-			Input: schema(map[string]string{}, nil), Replaces: []string{"ls ~/.local/share/Trash"}},
-		write("restore", "Put an item of the node's trash back where it was; refuses when something is there now.",
-			map[string]string{"id": "an id from trash"}, []string{"id"}, nil, "trash-restore"),
-	)
-}

go/catalogue/graphical_session.go

@@ -3,6 +3,8 @@ package catalogue
 import (
 	"fmt"
 	"strings"
+
+	contractseats "git.novox.be/novox/mesh-contracts/go/seats"
 )
 
 // The graphical session's seats (novox/hq ADR 0208): one module per piece of software, each piece's
@@ -10,130 +12,19 @@ import (
 // a role rather than each inventing one — and a machine running two of one role is refused at
 // assignment instead of found by two bars on one screen.
 const (
-	LoginManagerSeat     = "node-login-manager"
-	DisplayServerSeat    = "node-display-server"
-	DisplaySessionSeat   = "node-display-session"
-	TerminalEmulatorSeat = "node-terminal-emulator"
-	LauncherSeat         = "node-launcher"
-	NotifierSeat         = "node-notifier"
-	LockScreenSeat       = "node-lock-screen"
-	ClipboardSeat        = "node-clipboard"
-	BarSeat              = "node-bar"
-	CompositorSeat       = "node-compositor"
-	SecretServiceSeat    = "node-secret-service"
+	LoginManagerSeat     = contractseats.NodeLoginManager
+	DisplayServerSeat    = contractseats.NodeDisplayServer
+	DisplaySessionSeat   = contractseats.NodeDisplaySession
+	TerminalEmulatorSeat = contractseats.NodeTerminalEmulator
+	LauncherSeat         = contractseats.NodeLauncher
+	NotifierSeat         = contractseats.NodeNotifier
+	LockScreenSeat       = contractseats.NodeLockScreen
+	ClipboardSeat        = contractseats.NodeClipboard
+	BarSeat              = contractseats.NodeBar
+	CompositorSeat       = contractseats.NodeCompositor
+	SecretServiceSeat    = contractseats.NodeSecretService
 )
 
-// graphicalSessionSeats are the eleven, in the order ADR 0208's table reads, each with the verbs
-// research 026/05 starts it with. Three have none yet: the bar (which receives blocks instead,
-// ADR 0255), the compositor and the secret
-// service are roles a second holder competes for, and nothing has needed to ask them anything.
-func graphicalSessionSeats() []Seat {
-	const decided = "novox/hq ADR 0208"
-	return []Seat{
-		{Name: LoginManagerSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
-			{Name: "sessions", Description: "The sessions the login manager offers on this machine, and which " +
-				"one the operator account starts by default.",
-				Input: schema(map[string]string{}, nil)},
-		}},
-		{Name: DisplayServerSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
-			{Name: "displays", Description: "The monitors connected now, each with its identity, its modes and " +
-				"where it is placed; and the layout profile in force, if one matches.",
-				Input: schema(map[string]string{}, nil)},
-			// Profiles are keyed by the monitors' identities and are the operator's data (ADR 0208 §6).
-			{Name: "layout", Description: "The monitor layout profiles, keyed by the connected monitors' " +
-				"identities: list them, save the current arrangement under a name, or apply one.",
-				Input: withEnum(schema(map[string]string{
-					"action": "list, save or apply",
-					"name":   "the profile to save or apply (save and apply only)",
-				}, []string{"action"}), "action", "list", "save", "apply")},
-		}},
-		// It receives window-manager configuration lines from every other module (novox/hq ADR 0212):
-		// bindings, start-up commands, rules — placed by the session's holder, never written into
-		// its directory by the contributor.
-		{Name: DisplaySessionSeat, Scope: ScopeNode, Decision: decided,
-			Receives: []Receivable{{Kind: "config", Comment: "#"}}, Serves: []Verb{
-				{Name: "reload", Description: "Reload the session's configuration in place, keeping its windows.",
-					Input: schema(map[string]string{}, nil)},
-				{Name: "workspaces", Description: "The session's workspaces: each one's name, output, and whether " +
-					"it is visible or focused.",
-					Input: schema(map[string]string{}, nil)},
-				{Name: "windows", Description: "The session's windows: each one's title, class, workspace and " +
-					"whether it has focus; narrowed to one workspace when named.",
-					Input: schema(map[string]string{"workspace": "one workspace (optional)"}, nil)},
-			}},
-		{Name: TerminalEmulatorSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
-			{Name: "open", Description: "Open a terminal window in the operator's session, running a command " +
-				"or the login shell, in a directory or the account's home.",
-				Input: schema(map[string]string{
-					"command":   "what to run in it (optional; the login shell when absent)",
-					"directory": "where it starts (optional; the account's home when absent)",
-				}, nil)},
-		}},
-		{Name: LauncherSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
-			{Name: "menu", Description: "Put a menu of choices in front of the operator and answer with the " +
-				"one chosen, or nothing when the menu was dismissed — the dmenu-compatible contract.",
-				Input: map[string]any{"type": "object", "required": []string{"choices"},
-					"properties": map[string]any{
-						"choices": map[string]any{"type": "array", "items": map[string]any{"type": "string"},
-							"description": "the lines to choose between, in order"},
-						"prompt": map[string]any{"type": "string", "description": "what the menu asks (optional)"},
-					}}},
-			// A value the operator types and nobody sees (novox/hq ADR 0259 §10): a hidden prompt whose answer
-			// is sealed to the asker's key, so it is never plaintext on the bus or in any call's record.
-			// **Optional while its holders catch up** (ADR 0246): rofi serves it once this is live.
-			{Name: "secret", Optional: true, Description: "Ask the operator for a value in a prompt that " +
-				"does not show what is typed, and answer it sealed to the key the asker gives — never in " +
-				"the clear — or cancelled when the prompt was dismissed or not answered in time.",
-				// By name, never by words (the review of 2026-10-09, M4): the holder writes the prompt from the
-				// module, the secret and the machine, and says the controller asks — the bus lets nobody else
-				// ask it (broker.ControllerOnly) — so no caller puts words of its own before the operator.
-				Input: schema(map[string]string{
-					"module":          "the module whose own secret is asked for",
-					"secret":          "the own secret's name",
-					"node":            "the machine the module runs on",
-					"seal_to":         "the asker's public sealing key: the answer is sealed to it",
-					"timeout_seconds": "give up after this long (optional)",
-				}, []string{"module", "secret", "node", "seal_to"})},
-		}},
-		{Name: NotifierSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
-			{Name: "send", Description: "Show the operator a notification.",
-				Input: withEnum(schema(map[string]string{
-					"title":   "the notification's summary",
-					"body":    "its text (optional)",
-					"urgency": "low, normal (the default) or critical",
-				}, []string{"title"}), "urgency", "low", "normal", "critical")},
-			{Name: "history", Description: "The notifications shown lately, newest first.",
-				Input: schema(map[string]string{"limit": "how many (optional, default 20)"}, nil)},
-		}},
-		{Name: LockScreenSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
-			{Name: "lock", Description: "Lock the operator's session now.",
-				Input: schema(map[string]string{}, nil)},
-		}},
-		{Name: ClipboardSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
-			{Name: "history", Description: "What the clipboard held lately, newest first.",
-				Input: schema(map[string]string{"limit": "how many (optional, default 20)"}, nil)},
-			{Name: "copy", Description: "Put text on the operator's clipboard.",
-				Input: schema(map[string]string{"text": "the text"}, []string{"text"})},
-		}},
-		// It receives blocks as data (novox/hq ADR 0255): what a block shows, said for any bar, which
-		// the holder renders in its own grammar. A module that knows something about the machine — the
-		// power module its battery — gives the block; the bar knows no machine's hardware.
-		{Name: BarSeat, Scope: ScopeNode, Decision: decided,
-			Receives: []Receivable{{Kind: BarKindBlock, Comment: "#", Offered: true, Shape: barBlockShape()}}},
-		{Name: CompositorSeat, Scope: ScopeNode, Decision: decided},
-		{Name: SecretServiceSeat, Scope: ScopeNode, Decision: decided},
-	}
-}
-
-// withEnum narrows one string property of a schema to the values it may take, so a caller is told
-// the choices by the schema rather than by a refusal.
-func withEnum(s map[string]any, property string, values ...string) map[string]any {
-	props := s["properties"].(map[string]any)
-	p := props[property].(map[string]any)
-	p["enum"] = values
-	return s
-}
-
 // BarKindBlock is the bar's one received kind: a block (novox/hq ADR 0255).
 const BarKindBlock = "block"
 
@@ -171,34 +62,6 @@ type barOption struct {
 	required bool
 }
 
-// barBlockShape is the shape of a block (novox/hq ADR 0255): which bar, where on it, in what order,
-// what it shows, and that kind's options.
-//
-//   - bar: top or bottom;
-//   - place: resources (beside the processor, memory and disks) or status (beside the sound, before the
-//     clock) — the two places every holder keeps for contributed blocks;
-//   - order: 0–99 within the place, 50 when absent;
-//   - shows: battery or command; options: what that kind takes.
-func barBlockShape() *Shape {
-	return &Shape{
-		Text: true,
-		Places: []PlaceField{{Field: "bar", Values: []string{"bottom", "top"}},
-			{Field: "place", Values: []string{"resources", "status"}}},
-		Order: "order",
-		Check: barBlockProblems,
-		Reads: barBlockReads,
-		Examples: []map[string]any{
-			{"bar": "bottom", "place": "status", "shows": "battery"},
-			{"bar": "bottom", "place": "status", "shows": "battery", "options": map[string]any{"device": "BAT0"}},
-			{"bar": "bottom", "place": "status", "shows": "command",
-				"options": map[string]any{"command": "echo \"a line\"", "interval": float64(5)}},
-			{"bar": "bottom", "place": "status", "shows": "state", "options": map[string]any{"state": "power.draw"}},
-			{"bar": "bottom", "place": "status", "shows": "state",
-				"options": map[string]any{"state": "power.draw", "key": "a-machine"}},
-		},
-	}
-}
-
 func barBlockProblems(data map[string]any) []string {
 	var problems []string
 	for field := range data {
@@ -245,3 +108,11 @@ func barBlockProblems(data map[string]any) []string {
 	}
 	return problems
 }
+
+// withShapeCode gives a data-shaped kind of the generated seat list the checks its definition cannot carry, being code:
+// the bar's block (novox/hq ADR 0255, ADR 0260).
+func withShapeCode(seat, kind string, sh *Shape) {
+	if seat == BarSeat && kind == BarKindBlock {
+		sh.Check, sh.Reads = barBlockProblems, barBlockReads
+	}
+}

go/catalogue/graphical_session_test.go

@@ -55,7 +55,7 @@ func TestTheGraphicalSessionsSeatsAreTheMeshsOwnWithTheirVerbs(t *testing.T) {
 		t.Errorf("layout's actions are %v", action["enum"])
 	}
 	// And they survive the store's JSON, which is where the live set comes from.
-	if _, err := json.Marshal(graphicalSessionSeats()); err != nil {
+	if _, err := json.Marshal(DefaultSeats()); err != nil {
 		t.Fatal(err)
 	}
 }

go/catalogue/handed.go

@@ -233,8 +233,10 @@ func handedBy(m Manifest, archive Built) *Handed {
 
 // AssignmentHands is whether a module's value in the seat mesh-provisioner's plans (the assignments mirror's shape,
 // `{"provisioning": <Plan>}`) hands its module to the provisioner: Plan.Hands of the plan it carries, false with no
-// plan. A value that does not read is an error, never "not handed". The one rule the vault judges `own` by and a node
-// composing itself follows (Rendering.Assigned, issue 774).
+// plan. A value that does not read is an error, never "not handed". What the vault judges `own` by: the plan is what the
+// node's last composition made, so it follows that node's rule (the manifest, its build and the machine) one
+// composition later. Never the rule a node composing itself hands by: with no plan yet it would never make one (issue
+// 1966); the node reads it only to say where the two disagree (Rendering.Assigned).
 func AssignmentHands(raw []byte) (bool, error) {
 	var a struct {
 		Provisioning *Plan `json:"provisioning"`

go/catalogue/health_seats.go

@@ -1,108 +1,14 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // The four health seats.
 const (
-	ConditionsSeat = "mesh-conditions"
-	WatchdogsSeat  = "mesh-watchdogs"
-	SelfCheckSeat  = "mesh-self-check"
-	HealersSeat    = "mesh-healers"
+	ConditionsSeat = contractseats.MeshConditions
+	WatchdogsSeat  = contractseats.MeshWatchdogs
+	SelfCheckSeat  = contractseats.MeshSelfCheck
+	HealersSeat    = contractseats.MeshHealers
 )
 
 // healthDecision is the record that made the four seats.
 const healthDecision = "novox/hq ADR 0564"
-
-// conditionsVerbs are the condition keeper's verbs (ADR 0564 clauses 3, 9, 12).
-func conditionsVerbs() []Verb {
-	return []Verb{
-		{Name: "conditions", Description: "What is wrong with the mesh now: every open condition, urgent first, then oldest, " +
-			"raised from the observers' findings (the watchman, the self-check, the healers, the assigner) and cleared when " +
-			"the finding goes, never by hand. Given a key, that one whole with its evidence; with history, every transition " +
-			"lately.",
-			Input: schema(map[string]string{
-				"key":      "a condition's key: that one whole; with history, only its transitions",
-				"scope":    "only this scope: machine, plan, call, build, merge, provider, seat, bus, core, probe, mesh, delivery or module",
-				"severity": "only urgent, or only warning",
-				"machine":  "only those about this machine",
-				"history":  "\"true\": every raising, change, silence and clearing lately, oldest first",
-				"days":     "with history: how many days back (default 7, at most 90)",
-			}, nil, "history")},
-		{Name: "silence", Description: "Stop one condition's messages for a while, a hand act with why: it stays open and in " +
-			"status, and the silence is kept as its transition in history.",
-			Input: schema(map[string]string{
-				"key":   "the condition's key",
-				"for":   "how long: 30m, 4h, 2d; at most 7d",
-				"why":   "why, required and recorded",
-				"cause": "the cause in a word (the condition's kind when absent)",
-			}, []string{"key", "for", "why"})},
-		{Name: "resync", Description: "Read every observer's findings again and raise and clear what differs from the open " +
-			"conditions: the recovery of a keeper that missed a change.",
-			Input: schema(map[string]string{}, nil)},
-	}
-}
-
-// watchdogsVerbs are the watchman's verbs (ADR 0564 clauses 4, 5, 12).
-func watchdogsVerbs() []Verb {
-	return []Verb{
-		{Name: "signals", Description: "Every watchdog of the signals table the watchman keeps, each a key that expires unless " +
-			"its signal renews it: its row, what renews it, its bound, the age of its newest signal, and the finding its " +
-			"expiry wrote.",
-			Input: schema(map[string]string{"row": "one row, e.g. S1"}, nil)},
-		{Name: "stuck", Description: "Every want, build or step the watchman says stopped moving past its bound, with since " +
-			"when and the words of its finding.",
-			Input: schema(map[string]string{"machine": "only those on this machine"}, nil)},
-		{Name: "presence", Description: "Every machine and tool runner the watchman sees connected, with its last word, and " +
-			"those it says silent; a machine that said it sleeps is shown as sleeping, not silent.",
-			Input: schema(map[string]string{"machine": "one machine"}, nil)},
-		{Name: "dead-letters", Description: "Every message a consumer on the bus gave up on, kept in DEAD_LETTERS: whose " +
-			"consumer, the subject, how often it was handed over and when it was given up, newest first. With id: that one " +
-			"whole. With deliver or drop, a hand act with why.",
-			Input: schema(map[string]string{
-				"id":       "a dead letter's id, as the list gives it: that one whole, with its message",
-				"consumer": "a consumer's name, or <stream>.<consumer>: only what that one gave up on",
-				"limit":    "how many to list, newest first (default 50); only when listing",
-				"deliver":  "a dead letter's id: deliver it again to the consumer that gave it up (needs why)",
-				"drop":     "a dead letter's id: drop it for good (needs why)",
-				"why":      "with deliver or drop: why, required and recorded",
-				"cause":    "with deliver or drop: the cause in a word (dead-letter when absent)",
-			}, nil)},
-		{Name: "resync", Description: "Rebuild presence from the bus's connections, and the pulses and findings from the keys " +
-			"the watchman watches, and take every dead-letter notice waiting: the recovery of a watchman that missed a change.",
-			Input: schema(map[string]string{}, nil)},
-	}
-}
-
-// selfCheckVerbs are the self-check's verbs (ADR 0564 clause 6).
-func selfCheckVerbs() []Verb {
-	return []Verb{
-		{Name: "doctor", Description: "The self-check: the last run's verdict at once, each probe passed, failed, deferred " +
-			"(its facts not on the bus yet, named) or could not run, and how long ago. With run, a run now; with probe, one " +
-			"probe's verdict whole. Runs every five minutes on its own; each failure is a finding.",
-			Input: schema(map[string]string{
-				"run":   "\"true\": run every probe now and answer the verdict",
-				"probe": "one probe's id (D6): its verdict alone, with every finding",
-			}, nil, "run")},
-		{Name: "probes", Description: "The registry: what each probe asserts, where it reads its facts, and the finding it writes.",
-			Input: schema(map[string]string{}, nil)},
-	}
-}
-
-// healersVerbs are the healers' verbs (ADR 0564 clauses 7, 8).
-func healersVerbs() []Verb {
-	return []Verb{
-		{Name: "healers", Description: "The healers: each registered response to one kind of condition, its repair, its " +
-			"budget and what happens when it is spent; every act taken lately with its outcome, and the mesh-wide brake.",
-			Input: schema(map[string]string{"days": "how many days of acts back (default 7)"}, nil)},
-		{Name: "heal", Description: "Take one healer's act for one open condition now, within its budget and the brake.",
-			Input: schema(map[string]string{
-				"key": "the condition's key",
-				"why": "why now, kept with the act",
-			}, []string{"key", "why"})},
-		{Name: "drill", Description: "Record a drill: something broken on purpose to see the mesh raise and clear it, with " +
-			"what it tests. A drill is never a repair: no healer is wanted for it however often it is run.",
-			Input: schema(map[string]string{
-				"what":      "what was done on purpose, in a line",
-				"why":       "what the drill tests",
-				"condition": "the key of the condition the drill is meant to raise, if any (optional)",
-			}, []string{"what", "why"})},
-	}
-}

go/catalogue/holdings_test.go

@@ -18,9 +18,15 @@ func busSeatDelivering(t *testing.T, delivers string) {
 	UseSeats([]Seat{{Name: "mesh-broker", Scope: ScopeMesh, Delivers: delivers, Decision: "test"}})
 }
 
+// brokerVerbs are the bus seat's verbs as a literal: mesh-sdk imports no seat's contract module, a test neither
+// (ADR 0625 §3).
+func brokerVerbs() []string {
+	return []string{"list", "show", "check", "orphans", "create", "apply", "recreate", "drop"}
+}
+
 func newBroker() Manifest {
 	return Manifest{Module: "new-broker", Provides: []Offer{{Name: "mesh-bus", Scope: ScopeMesh}},
-		Claims: []Claim{{Name: "mesh-broker", Scope: ScopeMesh}}}
+		Claims: []Claim{{Name: "mesh-broker", Scope: ScopeMesh, Serves: brokerVerbs()}}}
 }
 
 // CanHold is the one judgement registration and the handover share, against the store's row.
@@ -41,7 +47,7 @@ func TestCanHoldJudgesClaimScopeAndWhatTheSeatDelivers(t *testing.T) {
 		t.Fatalf("a claim at the wrong scope was allowed: %v", err)
 	}
 	cannotAnswer := Manifest{Module: "amqp-only", Provides: []Offer{{Name: "amqp", Scope: ScopeMesh}},
-		Claims: []Claim{{Name: "mesh-broker", Scope: ScopeMesh}}}
+		Claims: []Claim{{Name: "mesh-broker", Scope: ScopeMesh, Serves: brokerVerbs()}}}
 	if err := CanHold(cannotAnswer, seat); err == nil || !strings.Contains(err.Error(), `does not provide "mesh-bus"`) {
 		t.Fatalf("a holder that cannot answer for the seat was allowed: %v", err)
 	}

go/catalogue/kept_until_delivered.go

@@ -1,189 +0,0 @@
-package catalogue
-
-// This file keeps, deprecated, the exported names feat/l3b-bus removed from this package while a running part still
-// uses them: an exported name is removed only after every user of it is delivered. The checker builds the running
-// node-engine's composer (mesh-host main) beside this mesh-sdk (ADR 0548 §6), and mesh-host main names them
-// (RuntimeModule, CoreCredentialModules, FromBus). Nothing in the final L3 release's heads uses any of them, but that
-// release still builds beside mesh-host 798d73e, so it keeps this file. The next release that changes mesh-sdk, once
-// the final L3 release's node-engine runs on every node, removes this file and its exemption in
-// TestNoCatalogueManifestNamesAmqp.
-
-import (
-	"fmt"
-	"slices"
-	"sort"
-	"strings"
-)
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// EndedControllerName is the name the ended controller had, as its module and as its seat: no manifest may name it.
-const EndedControllerName = "mesh-controller"
-
-// The kinds of a declaration that names the controller.
-//
-// Deprecated: kept until their users are delivered (the head of this file).
-const (
-	DependsRead     = "read"
-	DependsInvoke   = "invoke"
-	DependsConsume  = "consume"
-	DependsUses     = "uses"
-	DependsWaits    = "waits"
-	DependsClaims   = "claims"
-	DependsRequires = "requires"
-	DependsIs       = "is"
-)
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// Dependency is one declaration of a manifest that names the controller.
-type Dependency struct {
-	Module string `json:"module"`
-	// By is the account declaring it when it is not the module's own: `process <id>` or `tools <binary>`.
-	By   string `json:"by,omitempty"`
-	Kind string `json:"kind"`
-	What string `json:"what"`
-}
-
-// onController says whether a name `<owner>.<rest>` is the controller's.
-func onController(name string) bool { return strings.HasPrefix(name, EndedControllerName+".") }
-
-// invokesController says whether an invoke names a verb of the controller's seat or a tool of its module. `*` names none:
-// it is the console's grant to every tool.
-func invokesController(invoke string) bool {
-	if seat, _, ok := SeatInvoke(invoke); ok {
-		return seat == EndedControllerName
-	}
-	return onController(invoke)
-}
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// Dependencies are every declaration naming the controller in the manifests given, by module.
-func Dependencies(manifests map[string]Manifest) []Dependency {
-	var out []Dependency
-	add := func(module, by, kind, what string) {
-		if d := (Dependency{Module: module, By: by, Kind: kind, What: what}); !slices.Contains(out, d) {
-			out = append(out, d)
-		}
-	}
-	for name, m := range manifests {
-		if name == EndedControllerName || m.Module == EndedControllerName {
-			add(name, "", DependsIs, EndedControllerName)
-		}
-		for _, r := range m.Reads {
-			if onController(r) {
-				add(name, "", DependsRead, r)
-			}
-		}
-		for _, i := range m.Invokes {
-			if invokesController(i) {
-				add(name, "", DependsInvoke, i)
-			}
-		}
-		for _, c := range m.Consumes {
-			if onController(c) {
-				add(name, "", DependsConsume, c)
-			}
-		}
-		for _, w := range m.Waits {
-			if onController(w) {
-				add(name, "", DependsWaits, w)
-			}
-		}
-		for _, u := range m.Uses {
-			if u == EndedControllerName {
-				add(name, "", DependsUses, u)
-			}
-		}
-		for _, c := range m.Claims {
-			if c.Name == EndedControllerName {
-				add(name, "", DependsClaims, c.Name)
-			}
-		}
-		for _, r := range m.Requires {
-			if r == EndedControllerName || onController(r) {
-				add(name, "", DependsRequires, r)
-			}
-		}
-		for _, a := range m.BusAccounts() {
-			by := "process " + a.ID
-			if a.Tools {
-				by = "tools " + a.ID
-			}
-			for _, i := range a.Bus.Invokes {
-				if invokesController(i) {
-					add(name, by, DependsInvoke, i)
-				}
-			}
-		}
-	}
-	sort.Slice(out, func(i, j int) bool {
-		a, b := out[i], out[j]
-		if a.Module != b.Module {
-			return a.Module < b.Module
-		}
-		if a.Kind != b.Kind {
-			return a.Kind < b.Kind
-		}
-		if a.What != b.What {
-			return a.What < b.What
-		}
-		return a.By < b.By
-	})
-	return out
-}
-
-// Deprecated: kept until its users are delivered (the head of this file).
-//
-// ManifestRefusals is the check over a repository's manifests, by module name: one reason per declaration naming the
-// controller, none when it passes. None given fails it, since nothing read can hide a declaration.
-func ManifestRefusals(manifests map[string]Manifest) []string {
-	if len(manifests) == 0 {
-		return []string{"no manifest was read: with nothing read, nothing naming the controller can be judged absent"}
-	}
-	var out []string
-	for _, d := range Dependencies(manifests) {
-		who := d.Module
-		if d.By != "" {
-			who += " (" + d.By + ")"
-		}
-		out = append(out, fmt.Sprintf("%s declares %s %s: the controller ended by its unassignment and nothing may name it "+
-			"(ADR 0590 clause 5)", who, d.Kind, d.What))
-	}
-	return out
-}
-
-// Deprecated: a manifest says it (Manifest.CoreCredentials, CarriesCoreCredentials); kept until its users are
-// delivered (the head of this file).
-//
-// CoreCredentialModules are the modules whose own secrets are the core's credentials: the bus, mesh-provisioner and
-// its client.
-var CoreCredentialModules = []string{"mesh-provisioner", "mesh-provisioner-client", "nats"}
-
-// Deprecated: a manifest says it (Manifest.ToolRunner, IsToolRunner); kept until its users are delivered (the head
-// of this file).
-//
-// RuntimeModule is the module that is the node's tool runtime.
-const RuntimeModule = "node-tools"
-
-// Deprecated: the kept streams are the indexer's judge's; kept until its users are delivered (the head of this file).
-//
-// StreamsKeptUntilMoved are the streams declared before the check that a module keeps its data in the bus's
-// predefined forms, each allowed by name until its module moves it.
-var StreamsKeptUntilMoved = map[string][]string{
-	"brother":                    {"device-asks"},
-	"mesh-build-go":              {"toolchains-go"},
-	"mesh-build-node":            {"toolchains-node"},
-	"mesh-mail":                  {"mail", "mail-sends"},
-	"only-office":                {"convert-asks"},
-	"mesh-delivery-assigner":     {"placement"},
-	"mesh-delivery-checker":      {"checks"},
-	"mesh-delivery-forge-bridge": {"forge"},
-}
-
-// Deprecated: nothing derives it now (DerivedUpgrade reads the bus's own manifest); kept until its users are
-// delivered (the head of this file).
-//
-// FromBus is the source an older DerivedUpgrade gave the bus's policy.
-const FromBus = "the bus"

go/catalogue/manifest.go

@@ -469,6 +469,11 @@ type Manifest struct {
 	// this is for the rest — `zsh` provides `shell`, `xorg` provides `display-server`.
 	Provides []Offer `json:"provides,omitempty"`
 
+	// Packages are the series of each mesh package this module accepts, by the package's name (novox/hq ADR 0606,
+	// design 32): its fingerprint takes the newest version of that series, and a publish of another series moves it
+	// not. A package it uses and does not name is accepted in DefaultSeries (AcceptedSeries).
+	Packages map[string]string `json:"packages,omitempty"`
+
 	// Requires are names that must be provided by something assigned to the same node.
 	Requires []string `json:"requires,omitempty"`
 	// OptionalRequires is which of Requires the module can run without (novox/hq ADR 0330): filled
@@ -1224,6 +1229,64 @@ type Artifact struct {
 	// paths and constants composed with ${dir:…} and ${port:…} exactly as a container's environment
 	// is, never a secret's content. The node's runtime hands it to this bundle and to no other.
 	Env map[string]string `json:"env,omitempty"`
+
+	// Series is the series this artifact's versions are numbered in, `<major>.<minor>` (novox/hq ADR 0606, design 32):
+	// the builder numbers `<series>.<n>`, so a change of series is a change a user accepts by its own `packages`.
+	// Said on a package, an image, a bundle or an archive; the judge refuses it on any other kind. Absent is
+	// DefaultSeries (SeriesOf).
+	Series string `json:"series,omitempty"`
+
+	// GeneratedFrom marks a package of a contracts module (novox/hq ADR 0608 §5, design 26 *Contracts modules*): the
+	// directory, relative to the module's, of the seat definitions every file of the package is generated from. A
+	// module carrying it holds contracts only and claims no seat, which the judge refuses naming the seat; the build
+	// modules' test step regenerates the package and fails on a file out of step.
+	GeneratedFrom string `json:"generated-from,omitempty"`
+}
+
+// AcceptedSeries is the series of the package of that name this module accepts: the one Packages names, or else the
+// series of the package's first numbered version (design 32), the lowest of numbered, the series the package has a
+// numbered version in (the indexer's to say; a series is only ever raised); DefaultSeries while none is numbered.
+func (m Manifest) AcceptedSeries(name string, numbered ...string) string {
+	if s := m.Packages[name]; s != "" {
+		return s
+	}
+	first := ""
+	for _, s := range numbered {
+		if seriesOrder(s) != nil && (first == "" || compareSeries(s, first) < 0) {
+			first = s
+		}
+	}
+	if first == "" {
+		return DefaultSeries
+	}
+	return first
+}
+
+// seriesOrder is a series' major and minor, or nil when it is no `<major>.<minor>`.
+func seriesOrder(s string) []int {
+	major, minor, ok := strings.Cut(s, ".")
+	a, err1 := strconv.Atoi(major)
+	b, err2 := strconv.Atoi(minor)
+	if !ok || err1 != nil || err2 != nil || a < 0 || b < 0 {
+		return nil
+	}
+	return []int{a, b}
+}
+
+// compareSeries orders two well-formed series by major, then minor.
+func compareSeries(a, b string) int {
+	return slices.Compare(seriesOrder(a), seriesOrder(b))
+}
+
+// DefaultSeries is the series of an artifact or an accepted package that names none (design 32).
+const DefaultSeries = "0.1"
+
+// SeriesOf is the series the artifact's versions are numbered in: its own, or DefaultSeries.
+func (a Artifact) SeriesOf() string {
+	if a.Series == "" {
+		return DefaultSeries
+	}
+	return a.Series
 }
 
 // Kinds an artifact may be.

go/catalogue/manifest_reads.go

@@ -37,6 +37,16 @@ const (
 var referenceForms = []string{"access", "backup", "bound", "collected", "config", "consumer", "consumers",
 	"contribution", "dir", "machine", "port", "seat", "secret", "setting"}
 
+// ReferenceFormSeat names the reference form a registry seat answers for a build's artifact,
+// `<seat>/<module>/<artifact>@sha256:<digest>` (novox/hq ADR 0605 §9; InRegistrySeat), as the reader capability
+// `form:seat-reference` a node-engine built with this contract states (ADR 0618 §1, ADR 0624 §1): the builder writes it
+// into a build key only for the nodes whose engines state it. The older reference forms a node-engine read before any
+// stated what it reads are the baseline's; they are the builder's to name (delivery's artifact forms).
+const ReferenceFormSeat = "seat-reference"
+
+// artifactReferenceForms are the reference forms of a build's artifacts this contract reads beyond the baseline's.
+var artifactReferenceForms = []string{ReferenceFormSeat}
+
 // manifestTopWords are the top-level keys Manifest.UnmarshalJSON reads apart from the fields of manifestFields: each
 // read whole, its inside a map of the module's own names (requirements, local names) and values, no words of the
 // contract's beneath it. `requires` and `config` are read as their fields are (manifestNeeds).
@@ -60,6 +70,9 @@ func ManifestReads() []string {
 	for _, f := range referenceForms {
 		set[ReadForm+f] = true
 	}
+	for _, f := range artifactReferenceForms {
+		set[ReadForm+f] = true
+	}
 	for _, s := range DefaultSeats() {
 		set[ReadSeat+s.Name] = true
 	}

go/catalogue/node_resolver.go

@@ -1,38 +1,10 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // ResolverSeat is the machine's own resolver (novox/hq ADR 0247).
-const ResolverSeat = "node-resolver"
+const ResolverSeat = contractseats.NodeResolver
 
 // ResolverFile is the machine's resolver file: the uplink holder's, or the node-resolver holder's where
 // one is held.
 const ResolverFile = "/etc/resolv.conf"
-
-// resolverVerbs is the contract every holder of node-resolver serves (novox/hq ADR 0247): what is routed
-// where, route a set of domains, and take a route away. The same verbs are served on the machine itself to
-// the modules there, so what a VPN pushed never crosses the bus to be routed; on the mesh they are the
-// operator's way to read and correct the same.
-func resolverVerbs() []Verb {
-	return []Verb{
-		{Name: "routes", Description: "What this machine's own resolver sends where: the mesh's resolvers, " +
-			"which answer every name not routed elsewhere, and each link given servers of its own with the " +
-			"domains routed to them. Also the resolver file's outside writes it kept, newest first: when, who " +
-			"wrote it as far as the file says, whether a module took it, and when the resolver's own file was " +
-			"put back.",
-			Input:    schema(map[string]string{}, nil),
-			Replaces: []string{"resolvectl status", "resolvectl dns", "resolvectl domain"}},
-		{Name: "route", Description: "Send these domains, and every name under them, to these servers over " +
-			"this link — and only them: the link is never the machine's default route for names, and the " +
-			"mesh's own domain is refused. Replaces whatever the link was given before. A link that goes away " +
-			"takes its route with it.",
-			Input: schema(map[string]string{
-				"link":    "the network link the servers are reached over, by name (a VPN's tunnel interface)",
-				"domains": "the domains to route there, separated by spaces or commas",
-				"servers": "the servers' addresses, separated by spaces or commas",
-			}, []string{"link", "domains", "servers"}),
-			Replaces: []string{"resolvectl dns", "resolvectl domain", "resolvectl default-route"}},
-		{Name: "unroute", Description: "Take one link's route away: its domains go back to the mesh's " +
-			"resolvers. Nothing changes when the link has none.",
-			Input:    schema(map[string]string{"link": "the network link, by name"}, []string{"link"}),
-			Replaces: []string{"resolvectl revert"}},
-	}
-}

go/catalogue/optional_requirements_test.go

@@ -64,21 +64,32 @@ func TestARequirementsLongForm(t *testing.T) {
 		names    string
 		busState []BusStateEntry
 		aside    []string
+		refused  string
 	}{
 		// 1966/AC1: a plain name and a bus-state entry: Requires names the plain one only, since it names provisions,
 		// and BusState holds the entry whole.
 		{"a plain name and a bus-state entry", `["postgres-database",
 			{"name":"records","storage":"ledger","template":"ledger","options":{"max-mib":1024}}]`,
-			"postgres-database", []BusStateEntry{records}, nil},
+			"postgres-database", []BusStateEntry{records}, nil, ""},
 		// 1966/AC2: an unknown key is set aside and named, never refused; the entry decodes.
 		{"a bus-state entry with a key it does not know", `[
 			{"name":"records","storage":"ledger","template":"ledger","colour":"red","options":{"max-mib":1024}}]`,
-			"", []BusStateEntry{records}, []string{"requires[0].colour"}},
+			"", []BusStateEntry{records}, []string{"requires[0].colour"}, ""},
 		// 1966/AC3: a ledger type with each of the four effects round-trips through JSON unchanged.
 		{"a ledger with its type", `[{"name":"records","storage":"ledger","template":"ledger","options":{"max-mib":1024},
-			"types":[` + string(typeJSON) + `]}]`, "", []BusStateEntry{ledger}, nil},
+			"types":[` + string(typeJSON) + `]}]`, "", []BusStateEntry{ledger}, nil, ""},
+		// A field given twice at any depth is refused, named by its path: a decoder would keep the last without a word.
+		{"a field given twice", `[], "requires": ["postgres-database"]`, "", nil, nil, "the field requires is given twice"},
+		{"a field given twice deeper", `[{"name":"records","storage":"ledger","name":"other","template":"ledger"}]`,
+			"", nil, nil, "the field requires[0].name is given twice"},
 	} {
 		got, err := decodeForTest([]byte(`{"module":"x","version":"1","requires":` + c.requires + `}`))
+		if c.refused != "" {
+			if err == nil || !strings.Contains(err.Error(), c.refused) {
+				t.Errorf("%s: read as %+v, %v; want refused: %s", c.name, got, err, c.refused)
+			}
+			continue
+		}
 		if err != nil {
 			t.Errorf("%s: refused: %v", c.name, err)
 			continue

go/catalogue/own_manifest_test.go

@@ -6,10 +6,9 @@ import (
 	"testing"
 )
 
-// mesh-sdk's own manifest is judged by the controller that runs when it is checked, and that controller reads it
-// strictly: a manifest word ships one release ahead of its first user. R4e's group is judged by today's controller
-// (novox/hq ADR 0503 §4), which does not know `paths` (ADR 0499), so mesh-sdk's lib names no paths until a release
-// after R4e's delivery adds them back (ADR 0499 §6, issue 1758).
+// mesh-sdk's own manifest declares its two packages (design 32, SDK-10): the TypeScript `lib` and the Go `go`, built
+// from the directory go, each in series 0.1, so the Go build module publishes mesh-sdk's Go package through the Go seat
+// (design 51). Its words are judged by the group's own indexer, delivered with them (ADR 0621 §4).
 func TestOwnManifestUsesNoWordTheRunningControllerRefuses(t *testing.T) {
 	raw, err := os.ReadFile("../../module.json")
 	if err != nil {
@@ -22,11 +21,19 @@ func TestOwnManifestUsesNoWordTheRunningControllerRefuses(t *testing.T) {
 	if m.Build == nil || len(m.Build.Artifacts) == 0 {
 		t.Fatal("mesh-sdk's module.json declares no artifact")
 	}
+	packages := map[string]Artifact{}
 	for _, a := range m.Build.Artifacts {
-		if a.Paths != nil {
-			t.Errorf("artifact %q names paths %v: the running controller refuses the word until R4e is delivered", a.Name, a.Paths)
+		packages[a.Language] = a
+		if a.Kind != ArtifactPackage || a.Series != DefaultSeries {
+			t.Errorf("artifact %q is a %s in series %q, want a package in %s", a.Name, a.Kind, a.Series, DefaultSeries)
 		}
 	}
+	if g := packages["go"]; g.Name != "go" || !slices.Equal(g.Paths, []string{"go"}) {
+		t.Errorf("mesh-sdk's Go package is %+v, want go built from go", g)
+	}
+	if l := packages["typescript"]; l.Name != "lib" || l.Paths != nil {
+		t.Errorf("mesh-sdk's TypeScript package is %+v", l)
+	}
 
 	// What a reader reads (novox/hq ADR 0614 §4): the baseline is the contract of mesh-sdk f02f142, which every running
 	// node-engine was built with, and this contract reads all of it; the words added since are the only ones it lacks.
@@ -42,7 +49,9 @@ func TestOwnManifestUsesNoWordTheRunningControllerRefuses(t *testing.T) {
 			t.Errorf("the baseline's %s is no reader capability of this contract", b)
 		}
 	}
-	for _, want := range []string{"word:tool-runner", "word:core-credentials", "word:bus-state", "word:bus-state.storage"} {
+	for _, want := range []string{"word:tool-runner", "word:core-credentials", "word:bus-state", "word:bus-state.storage",
+		// The reference form a registry seat answers (ADR 0605 §9), and the seats the registry milestone adds.
+		ReadForm + ReferenceFormSeat, "seat:go-package-registry", "seat:container-image-registry", "seat:oci-artifact-registry"} {
 		if !slices.Contains(added, want) {
 			t.Errorf("%s is in the baseline, or not read: added since it are %v", want, added)
 		}

go/catalogue/placement_seat.go

@@ -1,7 +1,9 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // PlacementSeat is the seat the assigner holds for placement.
-const PlacementSeat = "mesh-placement"
+const PlacementSeat = contractseats.MeshPlacement
 
 // The seat's five verbs (ADR 0567 §10).
 const (
@@ -11,57 +13,3 @@ const (
 	PlacementVerbWithdraw  = "withdraw"
 	PlacementVerbAgain     = "again"
 )
-
-// placementVerbs are the seat's verbs: what reads all it keeps and does by hand all it does by itself (ADR 0567 §10).
-// Optional while the holder that serves them is not yet on every node (design 33 §7): the seat is new in the same
-// delivery as its holder.
-func placementVerbs() []Verb {
-	changes := map[string]any{"type": "array", "minItems": 1, "description": "the changes, each an object with `op`: " +
-		"place (node, module, ports, bindings), take-off (node, module), pin (node, provision, provider {node, module}), " +
-		"unpin (node, provision), hold (node, module, claim, scope, kind, site), unhold (node, module, claim), decide " +
-		"(node, field, value: a decided field of the node, its address among them), config (node, module, mesh-wide, " +
-		"layer, mesh-wide-values, values), add-node (node, decided, keys: a joining node, mesh-enrolment's alone, the " +
-		"proposal's one change, with the enrolment's warrant, its tunnel key alone at the operator's yes; ADR 0587 §7), " +
-		"remove-node (node: a joining node never confirmed, taken off when its enrolment ends; mesh-enrolment's alone, " +
-		"on the same warrant)",
-		"items": map[string]any{"type": "object", "required": []string{"op", "node"}}}
-	return []Verb{
-		{Name: PlacementVerbPlacement, Optional: true, Description: "Read placement: one node's key, the nodes one " +
-			"module is placed on, or every key, each with its revision, and how full the state is against its cap. With " +
-			"history, one node's or one module's changes in order: a revision the state keeps whole, an older one as the " +
-			"proposal's changes from its placement-changed event.",
-			Input: schema(map[string]string{"node": "one node", "module": "one module: the nodes it is placed on",
-				"history": "\"true\": the changes in order, from the stream and the state's revisions",
-				// ADR 0571 clause 4: who holds which seat on which node, from the state seat-holders.
-				"seats": "\"true\": who holds each seat, and on which node (the state seat-holders); with node, that node's"},
-				nil, "history", "seats")},
-		{Name: PlacementVerbProposals, Optional: true, Description: "Every open proposal of placement: its changes, " +
-			"the revision of each key it was laid over, its candidates, every node's answer, the differences computed and " +
-			"answered, its verdict and its ask. Narrowed to one by id.",
-			Input: schema(map[string]string{"id": "one proposal's id"}, nil)},
-		{Name: PlacementVerbPropose, Optional: true, Description: "Propose a change of placement, with why: laid over " +
-			"the current keys and refused at once, naming every finding, when the result cannot be placed (two modules " +
-			"on one host port, a provider not placed, a seat held once held twice, two nodes with one address, two " +
-			"hubs, a module the indexer does not hold, a node with no record). Otherwise the nodes it touches compose " +
-			"it in shadow and answer, and on a passing verdict the operator is asked to approve it. Who proposes is the " +
-			"caller, as the runtime proves it. An add-node from mesh-enrolment, whose warrant names its node and address, " +
-			"is written with no ask of its own: its Approve is the enrolment's (ADR 0587 §7).",
-			Input: map[string]any{"type": "object", "additionalProperties": false, "required": []string{"why", "changes"},
-				"properties": map[string]any{
-					"why":     map[string]any{"type": "string", "description": "why, shown to the operator with the proposal"},
-					"changes": changes,
-					// ADR 0587 §7: an add-node carries the warrant of the enrolment that issued the node's token, whose
-					// Approve is the proposal's; the holder writes it with no ask of its own.
-					"warrant": map[string]any{"type": "object", "description": "for an add-node alone: the enrolment's " +
-						"warrant {node, address, ask, warrant}, naming the change's node and address",
-						"required": []string{"node", "address", "ask", "warrant"}},
-				}}},
-		{Name: PlacementVerbWithdraw, Optional: true, Description: "Withdraw an open proposal: its key and its " +
-			"candidates are deleted and placement-withdrawn carries it whole. With why.",
-			Input: schema(map[string]string{"id": "the proposal's id", "why": "why, kept in the event"}, []string{"id", "why"})},
-		{Name: PlacementVerbAgain, Optional: true, Description: "Judge an open proposal now with the answers that " +
-			"stand, and raise its ask again when its verdict passes and the operator's channel does not hold the ask. " +
-			"Nothing more: the recovery of a proposal whose judgement or ask was lost.",
-			Input: schema(map[string]string{"id": "the proposal's id"}, []string{"id"})},
-	}
-}

go/catalogue/process_bus.go

@@ -31,6 +31,10 @@ type ProcessBus struct {
 	// Removes are what a tools bundle's account may remove from the bus, from a closed set (BusRemovals; novox/hq ADR
 	// 0564 Limits 4): declared alone, by the module holding mesh-broker, never by a process.
 	Removes []string `json:"removes,omitempty"`
+	// Keeps says this process is the bus module's keeper (novox/hq ADR 0626 §1): the controller composes the bus's
+	// create, update and snapshot subjects for modules' entries into its account. Refused on any other process or
+	// module by the judge (ADR 0626 §3); read here so a manifest declaring it decodes.
+	Keeps bool `json:"keeps,omitempty"`
 }
 
 // What a bus account may remove (novox/hq ADR 0564 Limits 4), each its own grant: keys of the node-engine's acts
@@ -93,7 +97,7 @@ func (b *ProcessBus) UnmarshalJSON(raw []byte) error {
 	dec := json.NewDecoder(bytes.NewReader(raw))
 	dec.DisallowUnknownFields()
 	if err := dec.Decode(&p); err != nil {
-		return fmt.Errorf("a process's bus is {emits, queues, state, asks, invokes}: %w", typedUnknown(err))
+		return fmt.Errorf("a process's bus is {emits, queues, state, asks, invokes, keeps}: %w", typedUnknown(err))
 	}
 	*b = ProcessBus(p)
 	return nil

go/catalogue/reads.go

@@ -1,66 +1,10 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // ReadsSeat is the role that reads a node's files and accounts (novox/hq ADR 0310).
-const ReadsSeat = "node-reads"
+const ReadsSeat = contractseats.NodeReads
 
 // ReadsSecretPlaces is the word the holder of node-reads is given: the places on its node where a secret is
 // kept, as a JSON list of absolute paths, each refused by name before any read (novox/hq ADR 0310 §5).
 const ReadsSecretPlaces = "MESH_SECRET_PLACES"
-
-// readsVerbs is the contract every holder of node-reads serves (novox/hq ADR 0310 §2). The bounds are the
-// build's to set and each verb's description to state (ADR 0310, Consequences); the holder states them in
-// every answer it cuts.
-func readsVerbs() []Verb {
-	return []Verb{
-		{Name: "stat", Description: "Each component of one path or several, from / down: its type, owner and group " +
-			"(name and number), mode, whether it is a link and to what, and whether it is a mount point and of which " +
-			"file system. A link is not followed unless follow is \"true\". Read as the holder's own account, which " +
-			"holds no secret: a component it may not reach says so. At most 200 paths in one call.",
-			Input: schema(map[string]string{
-				"paths":  "one absolute path, or several separated by line breaks",
-				"follow": "\"true\": also say where the path leads once every link is followed",
-			}, []string{"paths"}, "follow"),
-			Replaces: []string{"stat", "ls -ld", "namei -l", "findmnt -T"}},
-		{Name: "readlink", Description: "What one link points to, as written, and where the path leads once every " +
-			"link is followed, and whether that exists.",
-			Input:    schema(map[string]string{"path": "an absolute path"}, []string{"path"}),
-			Replaces: []string{"readlink", "readlink -f", "realpath"}},
-		{Name: "list", Description: "Every entry of one directory with its type, owner, group, mode, size and, for a " +
-			"link, its target. At most 2000 entries; a longer directory is cut and says so. A place a secret is kept " +
-			"is refused by name.",
-			Input:    schema(map[string]string{"path": "an absolute path to a directory"}, []string{"path"}),
-			Replaces: []string{"ls", "ls -la"}},
-		{Name: "read", Description: "One text file, or a part of it by line: at most 256 KiB in one answer " +
-			"(64 KiB unless more is asked), cut at a line and said so. A binary file is refused; a place a secret is " +
-			"kept, or a known credential file, is refused by name; a line shaped like a secret is withheld and its " +
-			"number said. /proc and /sys are read as far as the holder's account may.",
-			Input: schema(map[string]string{
-				"path":  "an absolute path to a file",
-				"from":  "the first line to answer, counted from 1 (optional)",
-				"lines": "how many lines to answer (optional)",
-				"bytes": "the most bytes to answer, up to 262144 (optional, 65536 unless given)",
-			}, []string{"path"}),
-			Replaces: []string{"cat", "head", "tail", "less"}},
-		{Name: "search", Description: "Find a fixed string (never a pattern) in one file or under one directory: " +
-			"every matching line with its file and number. Bounded: at most 500 matches (100 unless more is asked), " +
-			"8 directories deep (4 unless more is asked), 5000 files and 4 MiB per file; links are not followed and " +
-			"binary files are skipped. A place a secret is kept is skipped and named; a matching line shaped like a " +
-			"secret is withheld. The answer says which bound it met.",
-			Input: schema(map[string]string{
-				"text":    "the fixed string to find",
-				"path":    "an absolute path to a file or a directory",
-				"depth":   "how many directories deep, up to 8 (optional)",
-				"matches": "the most matches to answer, up to 500 (optional)",
-				"case":    "\"false\": match whatever the case (optional)",
-			}, []string{"text", "path"}, "case"),
-			Replaces: []string{"grep", "grep -r", "grep -F"}},
-		{Name: "account", Description: "One account or group by name or number, as this node's account files say: " +
-			"an account's number, group, home, shell and every group it is in; a group's number and members. With " +
-			"neither, every account and group. Never a password field.",
-			Input: schema(map[string]string{
-				"name":  "an account's name or number (optional)",
-				"group": "a group's name or number (optional)",
-			}, nil),
-			Replaces: []string{"getent passwd", "getent group", "id", "groups"}},
-	}
-}

go/catalogue/seat_contributions.go

@@ -1,13 +1,15 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // HotkeysSeat is the machine's hotkey daemon (novox/hq ADR 0212 §5).
-const HotkeysSeat = "node-hotkeys"
+const HotkeysSeat = contractseats.NodeHotkeys
 
 // MessageBusSeat is the machine's D-Bus (novox/hq ADR 0215).
-const MessageBusSeat = "node-message-bus"
+const MessageBusSeat = contractseats.NodeMessageBus
 
 // BackupSeat is the machine's backups (novox/hq ADR 0214, to-be 43).
-const BackupSeat = "node-backup"
+const BackupSeat = contractseats.NodeBackup
 
 // SeatContribution is one piece of configuration a module gives a seat's holder to place.
 type SeatContribution struct {

go/catalogue/seat_dependencies.go

@@ -4,14 +4,16 @@ import (
 	"fmt"
 	"sort"
 	"strings"
+
+	contractseats "git.novox.be/novox/mesh-contracts/go/seats"
 )
 
 // The three seats that apply resources (novox/hq ADR 0207 §1). Named once, because the derivation,
 // the seed and the messages all turn on these strings.
 const (
-	ServiceManagerSeat   = "node-service-manager"
-	PackageManagerSeat   = "node-package-manager"
-	ContainerRuntimeSeat = "node-container-runtime"
+	ServiceManagerSeat   = contractseats.NodeServiceManager
+	PackageManagerSeat   = contractseats.NodePackageManager
+	ContainerRuntimeSeat = contractseats.NodeContainerRuntime
 )
 
 // appliedThrough is which seat applies a resource of each type. **Only these three**: ADR 0207

go/catalogue/seats.go

@@ -3,6 +3,8 @@ package catalogue
 import (
 	"fmt"
 	"strings"
+
+	contractseats "git.novox.be/novox/mesh-contracts/go/seats"
 )
 
 // Seat is one role the mesh defines.
@@ -84,428 +86,48 @@ type Receivable struct {
 }
 
 // defaultSeats is the set the mesh ships with — the seed for the control plane's seat table and the
-// fallback when it has none (novox/hq ADR 0122). It is the one place the closed set 0110 defines is
-// written; the store's table is seeded from it and thereafter is the live, editable copy.
-//
-// In the order a person reads it: the mesh's own, then a node's.
-var defaultSeats = append([]Seat{
-	// The store's first verbs (novox/hq ADR 0159): the smallest set that makes the store askable,
-	// served by whichever module holds the seat with tools of these names.
-	{Name: "mesh-store", Scope: ScopeMesh, Delivers: "postgres-database", Decision: "novox/hq ADR 0079",
-		Serves: []Verb{
-			{Name: "databases", Description: "Every database the store holds, with its on-disk size.",
-				Input: schema(map[string]string{}, nil), Replaces: []string{"psql -l"}},
-			{Name: "query", Description: "One read-only statement against one database the store holds.",
-				Input: schema(map[string]string{"database": "the database to query", "sql": "the read-only statement"},
-					[]string{"database", "sql"}), Replaces: []string{"psql"}},
-		}},
-	// **Delivers the mesh's own bus, not `amqp`.** Those were the same word until
-	// ADR 0127 separated them: `amqp` is a backing service a module may require, and this seat is
-	// the mesh's own transport. ADR 0128 then made that connection something a module requires
-	// rather than receives ambiently — 23 of the catalogue's modules never speak, and an ambient
-	// connection would mint a credential for each.
-	{Name: BrokerSeat, Scope: ScopeMesh, Delivers: "mesh-bus", Decision: "novox/hq ADR 0079"},
-	// The vault: the controller seals every minted credential with what it provides, which is the
-	// test for a seat of the mesh's own (novox/hq ADR 0161) — a second provider of `secret` is a
-	// second claimant, refused by name, rather than a candidate for a pin.
-	//
-	// Its verb `get` hands a secret on request and reply, sealed to the key the asker sends and only to an
-	// asker the vault allows (novox/hq ADR 0349 §11, issue 674). `accept`, `secret-ask`, `issued` and `rotate`
-	// take a value in and make one anew (ADR 0349 clauses 8 to 10, issue 675): the first three in two steps from
-	// the controller alone, which carries the value sealed to a key the vault made for the call and cannot open
-	// it. All optional until the vault that runs serves them (design 33 §7).
-	{Name: "mesh-vault", Scope: ScopeMesh, Delivers: "secret", Decision: "novox/hq ADR 0161",
-		Serves: []Verb{
-			{Name: "get", Optional: true, Description: "One secret, sealed to the public key the asker sends (the " +
-				"sealed box of ADR 0206), with its generation; answered only to an asker the vault allows, as the " +
-				"bus proved it. Never the value in the clear, and never to a private key.",
-				Input: schema(map[string]string{"name": "the secret's name",
-					"public_key": "the asker's X25519 public key as SPKI PEM — never a private key"},
-					[]string{"name", "public_key"})},
-			{Name: "accept", Optional: true, Description: "Take a value given at the controller's terminal, from the " +
-				"controller alone: name the secret and get a call and a key made for it, then send the call and the " +
-				"value sealed to that key. The vault alone opens it, and never remakes an accepted credential.",
-				Input: schema(vaultIntake(map[string]string{"node": "the machine, for a module's own secret",
-					"module": "the module, for a module's own secret", "name": "the secret's name in the module",
-					"provider": "the provider's machine, for a provision's credential", "provision": "the provision",
-					"by": "who gave it at the terminal",
-					"origin": "issued for a bus account the controller minted for a core or moved module and hands " +
-						"at once (ADR 0374, issue 787); left out for a value given at the terminal"}), nil)},
-			{Name: "secret-ask", Optional: true, Description: "Ask the operator for a module's own secret at a desk, " +
-				"from the controller or a caller the vault's manifest names, named as the bus proved it (novox/hq ADR " +
-				"0563 §8): the ask is recorded in the vault's store and bounded before the prompt " +
-				"opens, and what is typed is sealed to a key the vault made for the call and opens there alone.",
-				Input: schema(vaultIntake(map[string]string{"node": "the machine the secret is for",
-					"module": "the module", "name": "the secret's name in the module",
-					"desk": "the machine whose prompt asks", "asked_by": "who asked, as the bus named its caller",
-					"outcome": "instead of sealed: how the prompt ended"}), nil)},
-			{Name: "issued", Optional: true, Description: "Take the credential a provider's software issued for a " +
-				"provision, from the controller alone, which asks the provider's tool with a key the vault made for " +
-				"the call; kept as the provision's one credential, or, when the tool answers a value per holder named, " +
-				"each as that holder's own; the same value again writes nothing.",
-				Input: withHolders(schema(vaultIntake(map[string]string{"provision": "the provision",
-					"provider": "the provider's machine", "module": "the provider's module"}), nil))},
-			{Name: "rotate", Optional: true, Description: "Make a secret anew. Refused for a value a provider's " +
-				"software issued and for an accepted credential. Never answers the value.",
-				Input: schema(map[string]string{"node": "the machine, for a module's own secret", "module": "the module",
-					"name": "the secret's name in the module", "provider": "the provider's machine",
-					"provision": "the provision", "by": "who asked, when the controller carries the act"}, nil)},
-			// The move of the controller's secrets (design 57's V3, issue 676): each machine's node-engine hands in what
-			// was sealed to its machine, which the controller cannot open; the controller copies its record of asks.
-			{Name: "move-in", Optional: true, Description: "Take one value of the controller's store in, as it is, " +
-				"from the node-engine of a machine it was sealed to and no other caller: name the row, its origin " +
-				"and generation and get a call and a key made for it, then send the call, the value sealed to that " +
-				"key and a key to read back to. Never replaces a value the vault holds; answers what it kept, read " +
-				"back sealed to that key.",
-				Input: schema(vaultIntake(map[string]string{"node": "a module's own secret: its machine",
-					"module": "its module", "name": "its name in the module",
-					"provider": "a pair credential: the provider's machine", "provision": "the provision",
-					"consumer": "the consumer's machine", "consumer_module": "the consuming module",
-					"local":      "the credential's local name, when it has one",
-					"origin":     "made, accepted or issued, as the controller's store says",
-					"generation": "the controller's generation for the value", "made_at": "when it was made (RFC 3339)",
-					"read_back_to": "the second step: a raw X25519 public key the read-back is sealed to"}), nil)},
-			// A machine's node-engine states its own sealing key (novox/hq ADR 0372, issue 786).
-			{Name: "node-key", Optional: true, Description: "State this machine's sealing key to the vault, in its " +
-				"own name, from the node-engine of the machine alone: at its start and whenever the key changes. A " +
-				"first or changed key is recorded and the machine's core secrets are said changed; the same key " +
-				"again changes nothing.",
-				Input: schema(map[string]string{"key": "the machine's sealing key, a raw X25519 public key in base64"}, nil)},
-			// A machine's node-engine composes its own modules and asks their secrets sealed to its key (novox/hq ADR 0547
-			// §2, ADR 0550 §5, issue 1126); granted as buscompose's Principal.AsksItsOwnSecrets says.
-			{Name: "own", Optional: true, Description: "Answer the node-engine of one machine, about its own machine " +
-				"alone (as the bus proved the caller, never an argument), its modules' own secrets and the pair " +
-				"credentials it consumes or provides that it names, each sealed to the key it stated with node-key. A " +
-				"credential the vault does not hold is named missing; never a value in the clear.",
-				Input: map[string]any{"type": "object", "properties": map[string]any{"credentials": map[string]any{
-					"type": "array", "items": map[string]any{"type": "object"},
-					"description": "the pair credentials the machine's composition reads, each {role: consumer|provider, " +
-						"provision, consumer, consumer_module, provider, local}"}}}},
-			{Name: "move-asks", Optional: true, Description: "Copy rows of the controller's record of asks at a desk " +
-				"into the vault's, as they are and once, from the controller alone. No value is in any of them.",
-				Input: map[string]any{"type": "object", "properties": map[string]any{"asks": map[string]any{
-					"type": "array", "items": map[string]any{"type": "object"},
-					"description": "the controller's rows: id, node, module, name, desk, asked_by, opened_at, ended_at, outcome"}}}},
-			{Name: "issue-account", Optional: true, Description: "Mint one bus account the grants part wants, now (novox/hq " +
-				"ADR 0561 §9): only while the controller's lease is handed away, never a node's account or the " +
-				"controller's, never anew for one the vault holds a value or an adopted hash for. Never the value.",
-				Input: schema(map[string]string{"user": "the bus user, e.g. ace.mesh-build-go"}, []string{"user"})},
-			{Name: "sign", Optional: true, Description: "Sign with the vault's key or authority (novox/hq ADR 0550 §2): " +
-				"kind node-certificate signs the certificate of a machine's internal name, asked by that machine's " +
-				"node-engine for the serving key its record states, built from bus state alone, or by mesh-enrolment for " +
-				"a node it enrols, for the serving key the node presented at redeem (ADR 0587 §3); kind enrolment signs a " +
-				"redeem answer under its own context, for mesh-enrolment alone. Answers the certificate or the signature " +
-				"and the signer's fingerprint, and says signed; never a key.",
-				Input: schema(map[string]string{"kind": "node-certificate or enrolment",
-					"node":        "the machine, for a node certificate: the caller's own, or the node mesh-enrolment enrols",
-					"serving_key": "from mesh-enrolment: the serving key's public half the enrolling node presented",
-					"reply":       "the redeem answer's bytes in base64, for an enrolment"}, []string{"kind"})},
-			// Enrolment (novox/hq ADR 0561 §5, ADR 0587 §3, §5; issue 774): mesh-enrolment is the only caller the vault's
-			// manifest names for these two.
-			{Name: "enrolment-token", Optional: true, Description: "Make a one-time token for a node mesh-enrolment " +
-				"issues on the operator's warrant: its secret kept with its copy sealed to the operator key and its hash " +
-				"written as the bus user enrol.<node>. Answers only what the joining machine must trust (the bus's " +
-				"address, the bus certificate's fingerprint, the vault's public signing key), never the token; with " +
-				"sealed, the token sealed to the operator key, for tokens to relay; with drop, the token and its hash " +
-				"dropped, at the enrolment's end. Asked by mesh-enrolment alone, only from the lease write. The token " +
-				"carries the first tunnel mesh-enrolment built at issue (ADR 0587 §3, insight of 2026-11-02).",
-				Input: withObject(schema(map[string]string{"node": "the node the token is for",
-					"expires": "when the token expires (RFC 3339), as the enrolment's key says",
-					"sealed":  "\"true\": answer the token sealed to the operator key",
-					"drop":    "\"true\": drop the node's token and its hash"}, []string{"node"}, "sealed", "drop"),
-					"tunnel", "the node's first tunnel, built by mesh-enrolment at issue and carried in the token: the hub's "+
-						"public key, the hub's endpoint, the node's tunnel address, its own tunnel key and the network's range",
-					map[string]string{"hub_key": "the hub's tunnel public key", "hub_endpoint": "the hub's endpoint, host:port",
-						"address": "the joining node's tunnel address",
-						"key":     "the joining machine's own tunnel public key, as given at issue",
-						"range":   "the private network's range, a prefix"})},
-			{Name: "node-account", Optional: true, Description: "Mint a joining node's bus account node.<node>, sealed " +
-				"to the sealing key it presented, and write its hash; asked again for the same node and keys, answers the " +
-				"account it already minted; with retire, the account it minted for a revoked enrolment retired. Writes the " +
-				"node's node-logins key naming node.<node>. Asked by mesh-enrolment alone. Never the value in the clear.",
-				Input: schema(map[string]string{"node": "the joining node",
-					"sealing_key": "the sealing key's public half the node presented, which the account is sealed to",
-					"keys_digest": "the digest of every public key the node presented (delivery.KeysDigest)",
-					"retire":      "\"true\": retire the account minted for this node"}, []string{"node"}, "retire")},
-			// A node's account rotates over two logins (novox/hq ADR 0583 §2-§5; issue 774), one node at a time, the bus
-			// node last; the state node-logins says where each node stands.
-			{Name: "rotate-node", Optional: true, Description: "Begin a node's account rotation to its other login: " +
-				"answered only for a call carrying a hand act recorded through mesh-hand-acts, which the vault reads back by " +
-				"its id. Makes the other login's value sealed to that node, writes it rotating in node-logins and says " +
-				"rotation-begun; says node-account-ready once the bus node's have shows a list holding both logins. One " +
-				"node at a time across the mesh, the bus node last: a call while a rotation runs waits until it is done.",
-				Input: schema(map[string]string{"node": "the node whose account rotates", "why": "why, in a sentence",
-					"act": "the id of the hand act recorded for it in mesh-hand-acts"}, []string{"node", "why", "act"})},
-			{Name: "node-account-confirm", Optional: true, Description: "Confirm a node's switch to its new login: " +
-				"asked by the node-engine dialled as that login, the runtime's proof of the caller being the confirmation. " +
-				"The old login's hash is then removed, and rotation-done said once the bus node's have shows the list " +
-				"without it.",
-				Input: schema(map[string]string{}, nil)},
-			{Name: "abandon", Optional: true, Description: "Abandon a node's rotation before its old login is retired: " +
-				"the new login and its value dropped, the old one kept; a node that switched switches back first.",
-				Input: schema(map[string]string{"node": "the node whose rotation is abandoned"}, []string{"node"})},
-		}},
-	// The owner of every config value (novox/hq ADR 0348 §9, design 57 K3): its holder alone writes the buckets
-	// mesh-config_values, _resolved, _predefined and _proposals, and serves the one verb `config` (§1, §10).
-	// Optional until the mesh-config that runs serves it (design 33 §7).
-	{Name: "mesh-config", Scope: ScopeMesh, Decision: "novox/hq ADR 0348, ADR 0565",
-		Serves: []Verb{
-			{Name: "config", Optional: true, Description: "Set, clear, list or read the history of config values: " +
-				"mesh config or node config for a predefined key, or a module's own value on one node, each set " +
-				"with why, validated, and naming each module on each node whose value moves.",
-				Input: configInput()},
-		}},
-	// The provisioner's server (novox/hq ADR 0349 clause 3, design 57 P4): its holder keeps the registry of which
-	// domain answers which kind of placeholder, and the buckets mesh-provisioner_needs, _applied and _collect,
-	// which it and each machine's provisioner client (for its own machine's keys) alone write. Its one verb reads
-	// them. Optional until the mesh-provisioner that runs serves it (design 33 §7).
-	{Name: "mesh-provisioner", Scope: ScopeMesh, Decision: "novox/hq ADR 0349",
-		Serves: []Verb{
-			{Name: "provisioning", Optional: true, Description: "Read what the provisioner keeps: the registry " +
-				"(which domain answers which kind of placeholder), the needs each module on each node recorded, what " +
-				"is applied where, or the items of every collection, narrowed by node and module. Reads only.",
-				Input: schema(map[string]string{"what": "registry (when not given), needs, applied or collect",
-					"node": "a node", "module": "a module: for collect, a contributor", "collection": "for collect: a collection"}, nil)},
-		}},
-	// Named for its scope since 2026-09-30 (novox/hq ADR 0156); `the-artifact-store` resolves to it as
-	// an alias on a mesh that predates the rename. It serves artifacts of every kind a build makes —
-	// images and archives, by digest — which is why the provision is the artifact store and not an
-	// image registry.
-	{Name: "mesh-artifact-store", Scope: ScopeMesh, Delivers: "artifact-store", Decision: "novox/hq ADR 0075"},
-	// The catalog (novox/hq ADR 0604): what the mesh holds of every module, its verbs read from its holder's states (CatalogSeat).
-	{Name: CatalogSeat, Scope: ScopeMesh, Serves: catalogVerbs(), Decision: "novox/hq ADR 0604"},
-	// The delivery's owner (novox/hq ADR 0239): one commit's journey from its pull request's head to every
-	// machine, and a group of them, recorded and ordered by its holder, which asks the controller for each act.
-	// What it says it says as its module (`mesh-delivery.transition`), through the runtime that launches it.
-	{Name: DeliverySeat, Scope: ScopeMesh, Serves: deliveryVerbs(), Decision: "novox/hq ADR 0239"},
-	// Placement (novox/hq ADR 0567): which module runs on which node, state on the bus held by the assigner, changed only by
-	// a proposal the nodes answer and the operator approves. Its states and events are the holder module's.
-	{Name: PlacementSeat, Scope: ScopeMesh, Serves: placementVerbs(), Decision: "novox/hq ADR 0567"},
-	// The delivery's checker (novox/hq ADR 0547 §10, issue 774): the try is its verb, not the controller's.
-	{Name: CheckerSeat, Scope: ScopeMesh, Serves: checkerVerbs(), Decision: "novox/hq ADR 0547"},
-	// The mesh's health, out of the controller (novox/hq ADR 0564 clause 1, health_seats.go): the condition keeper, the
-	// watchman's watchdogs, the self-check and the healers.
-	{Name: ConditionsSeat, Scope: ScopeMesh, Decision: healthDecision,
-		Emits: []string{"condition-raised", "condition-changed", "condition-cleared"}, Serves: conditionsVerbs()},
-	{Name: WatchdogsSeat, Scope: ScopeMesh, Decision: healthDecision, Serves: watchdogsVerbs()},
-	{Name: SelfCheckSeat, Scope: ScopeMesh, Decision: healthDecision, Emits: []string{"checked"}, Serves: selfCheckVerbs()},
-	{Name: HealersSeat, Scope: ScopeMesh, Decision: healthDecision, Emits: []string{"healer-acted"}, Serves: healersVerbs()},
-	// The control records, out of the controller (novox/hq ADR 0565 clause 1, control_records_seats.go): a person's
-	// policy and the bus step at the assigner, and the hand-act log.
-	{Name: WantsSeat, Scope: ScopeMesh, Decision: controlRecordsDecision, Emits: []string{"policy-changed"}, Serves: wantsVerbs()},
-	{Name: HandActsSeat, Scope: ScopeMesh, Decision: controlRecordsDecision, Emits: []string{"act-recorded"}, Serves: handActsVerbs()},
-	// Joining a machine (novox/hq ADR 0587 §1, enrolment_seat.go): held once by the module mesh-enrolment.
-	{Name: EnrolmentSeat, Scope: ScopeMesh, Decision: enrolmentDecision, Emits: EnrolmentEvents, Serves: enrolmentVerbs()},
-	// The artifact sweep (novox/hq ADR 0571 clause 2, artifact_sweep_seat.go).
-	{Name: ArtifactSweepSeat, Scope: ScopeMesh, Decision: "novox/hq ADR 0571", Emits: []string{"artifacts-gone"},
-		Serves: artifactSweepVerbs()},
-	// Deferred renames (novox/hq ADR 0121): these deliver a provision, so renaming them is a
-	// delivering-seat migration with a mesh-wide cascade if a holder stops resolving mid-flight.
-	// They keep their names until that migration is done deliberately, apart from the node-* pass.
-	{Name: "npm-package-registry", Scope: ScopeMesh, Delivers: "npm-package-registry", Decision: "novox/hq ADR 0109"},
-	{Name: "git", Scope: ScopeMesh, Delivers: "git", Decision: "novox/hq ADR 0111"},
-	// **A build node's work, one seat per build language** (novox/hq ADR 0525 §2, §10; ADR 0536 §4; issue 1887). The
-	// build module of each language claims its seat on every node it runs on; the builder and the checker put their
-	// asks on the seat's accepted kinds, which the broker derives as one work queue with a shared worker per kind, and
-	// each holder pulls delivery first, then check, then recheck, at most its node's build capacity at once. Its verbs
-	// say what the node runs and pause or resume it there: every holder pulls from the same worker, so a node's pause is
-	// its holder taking nothing, kept on the module's own pause key (issue 1887's design limit 2). They replace
-	// node-build-agent, retired with build-agent (ADR 0524 §5).
-	{Name: "node-build-go", Scope: ScopeNode, Accepts: buildAskKinds(), PulledByKind: true, Serves: buildSeatVerbs("Go"),
-		Yields: true, Decision: "novox/hq ADR 0525, ADR 0536, ADR 0553"},
-	{Name: "node-build-node", Scope: ScopeNode, Accepts: buildAskKinds(), PulledByKind: true, Serves: buildSeatVerbs("Node"),
-		Yields: true, Decision: "novox/hq ADR 0525, ADR 0536, ADR 0553"},
-	{Name: "node-build-image", Scope: ScopeNode, Accepts: buildAskKinds(), PulledByKind: true, Serves: buildSeatVerbs("image"),
-		Yields: true, Decision: "novox/hq ADR 0525, ADR 0536, ADR 0553"},
-	// **The mesh's resolvers** (novox/hq ADR 0194, 0196, 0223): every node's internal domain, and
-	// every node and container asks them and nothing else. Replicated since ADR 0223: held on more
-	// than one machine, each answering the same names from the same roster, and every machine's
-	// resolver file lists every holder — its own first — and no public resolver, so whichever answers
-	// first gives the one answer. Delivers what a machine's resolver configuration requires, so that
-	// requirement resolves to a holder wherever they are placed.
-	{Name: "mesh-dns-resolver", Scope: ScopeMesh, Delivers: "wildcard-resolution", Replicated: true,
-		Decision: "novox/hq ADR 0194, ADR 0223"},
-	// **A machine's names are one module's** (novox/hq ADR 0199, ADR 0223): its holder writes
-	// /etc/hostname and the machine's own lines in /etc/hosts, and keeps every other line of the hosts
-	// file as the operator's, changed through these three verbs on that machine alone. The controller
-	// holds none of it. Named node-hosts-file until ADR 0223; the former name resolves to it as an
-	// alias on a mesh that knew it.
-	{Name: "node-hostname", Scope: ScopeNode, Decision: "novox/hq ADR 0199, ADR 0223",
-		// The machine's names are the role's files, whatever program fills it (novox/hq ADR 0287).
-		Paths: []SeatPath{{Path: "/etc/hosts"}, {Path: "/etc/hostname"}},
-		Serves: []Verb{
-			{Name: "entries", Description: "Every line of this machine's /etc/hosts, each marked whose it is: " +
-				"the operator's, or the block of the module or tool that writes it.",
-				Input: schema(map[string]string{}, nil), Replaces: []string{"cat /etc/hosts", "getent hosts"}},
-			{Name: "add", Description: "Add one address and its names to the operator's lines of this machine's " +
-				"/etc/hosts — a name for this machine's own programs, not the mesh's.",
-				Input: schema(map[string]string{"address": "the IPv4 or IPv6 address",
-					"names": "the names for it, separated by spaces"}, []string{"address", "names"}),
-				Replaces: []string{"edit /etc/hosts", "HOSTALIASES"}},
-			{Name: "remove", Description: "Remove one name, or every line of one address, from the operator's " +
-				"lines of this machine's /etc/hosts. A line a module writes is refused, naming the module.",
-				Input: schema(map[string]string{"name": "a host name, or an address to remove every line of"},
-					[]string{"name"}), Replaces: []string{"sed -i /etc/hosts"}},
-		}},
-	// The intrusion prevention's verbs (novox/hq ADR 0179): what a person asks a machine's ban list
-	// whatever keeps it — who is banned and why, ban one address, let one go. Every holder serves all
-	// four; the jails themselves are composed from the modules the machine runs (to-be 31).
-	{Name: "node-intrusion-prevention", Scope: ScopeNode, Decision: "novox/hq ADR 0121",
-		Serves: []Verb{
-			{Name: "status", Description: "Every jail on this machine with how many it is watching and " +
-				"holding now, and the totals since the jail started; one jail's detail when named.",
-				Input: schema(map[string]string{"jail": "one jail (optional)"}, nil), Replaces: []string{"fail2ban-client status"}},
-			{Name: "banned", Description: "Every address banned on this machine right now, with the jail " +
-				"that holds it and when the ban ends.",
-				Input: schema(map[string]string{"jail": "one jail (optional)"}, nil), Replaces: []string{"fail2ban-client banned"}},
-			{Name: "ban", Description: "Ban one address in one jail now, for the jail's ban time — an " +
-				"operator's act on the live ban list, which the mesh never writes itself.",
-				Input:    schema(map[string]string{"ip": "the address", "jail": "the jail to hold it"}, []string{"ip", "jail"}),
-				Replaces: []string{"fail2ban-client set banip"}},
-			{Name: "unban", Description: "Let one address go, from one jail or from every jail when none is named.",
-				Input:    schema(map[string]string{"ip": "the address", "jail": "one jail (optional)"}, []string{"ip"}),
-				Replaces: []string{"fail2ban-client unban", "fail2ban-client set unbanip"}},
-		}},
-	// The packet filter's verbs (novox/hq ADR 0170): what a person asks a machine's filter whatever
-	// filter answers — the rules as enforced, reload the mesh's own, remove one thing the mesh did
-	// not write. Every holder serves all three; what differs by filter is the holder's own tools.
-	{Name: "node-packet-filter", Scope: ScopeNode, Decision: "novox/hq ADR 0121",
-		Serves: []Verb{
-			{Name: "rules", Description: "The packet filter as this machine enforces it now: the nftables " +
-				"ruleset and, where the tool exists, the legacy filter's listings. Narrowed to one table or " +
-				"chain when asked.",
-				Input: schema(map[string]string{"table": "one nftables table, as `family name` (optional)",
-					"chain": "one chain of that table (optional)"}, nil),
-				Replaces: []string{"nft list ruleset", "iptables -L", "iptables-save"}},
-			{Name: "reload", Description: "Load the mesh's own filter again from the file the mesh writes, " +
-				"and answer with the mesh's table as loaded.",
-				Input: schema(map[string]string{}, nil), Replaces: []string{"nft -f"}},
-			{Name: "remove", Description: "Remove one rule set the mesh did not write, named exactly as the " +
-				"host reports it (novox/hq ADR 0168) — `chain X (iptables-legacy)` or `table ip6 filter, chain " +
-				"DOCKER-USER`. Refuses the mesh's tables, the runtime's own chains, a built-in chain and an " +
-				"active found firewall's chains. An operator's act, by name, never a flush.",
-				Input:    schema(map[string]string{"where": "the rule set, as `node show` lists it"}, []string{"where"}),
-				Replaces: []string{"nft delete", "iptables -X"}},
-		}},
-	// The machine's service manager (novox/hq ADR 0177). The host applies every declared unit,
-	// system or user scope; the holder answers questions and operator acts about them, each verb
-	// taking the unit and an optional scope. The holder runs nothing of its own: its verbs are
-	// served by the node tools runtime (ADR 0175).
-	{Name: ServiceManagerSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0177",
-		Serves: serviceManagerVerbs()},
-	// The machine's package manager (novox/hq ADR 0207). A module declaring a `package` depends on
-	// it being held on its node, as one declaring a `service` depends on node-service-manager: the
-	// mesh's word for "something on this machine answers for installing", where a capability only
-	// says the software is there. No verbs yet — the seat says who answers, and what may be asked
-	// of it is decided when someone needs to ask.
-	{Name: PackageManagerSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0207"},
-	// The machine's container runtime (novox/hq ADR 0166, seeded now by ADR 0207): a module
-	// declaring a `container` depends on it being held on its node. Its verbs, and the host creating
-	// containers through its holder, wait for ADR 0166's acceptance — seeded without them so the
-	// dependency has a seat to name and the runtime's module has one to claim.
-	{Name: ContainerRuntimeSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0166, ADR 0207"},
-	// The operator account's environment (novox/hq ADR 0203): one module per machine writes it, and
-	// every module contributes to it. No verbs — the seat says who places the environment's files,
-	// and their path is its protocol: a shell sources ~/.config/mesh/environment.sh without knowing
-	// which module wrote it.
-	{Name: EnvironmentSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0203"},
-	// The provisioner client on every machine (novox/hq ADR 0349 clause 3, design 57 P5): a service of its own on a
-	// bus account of its own (mesh-controller internal/broker NodeProvisionerSeat, design 57 P3), which fills the
-	// machine's templates. It serves no verb an agent calls.
-	{Name: "node-provisioner", Scope: ScopeNode, Decision: "novox/hq ADR 0349"},
-	// The login shell (novox/hq ADR 0204, replacing the module-declared `login-shell` of ADR 0176):
-	// the mesh's, so a second shell module claims the seat rather than declaring a second one, and
-	// the seat exists whether or not zsh's definition is registered. `execute` is the contract a caller
-	// may call where the machine serves it (optional: ADR 0268); the holder places every module's shell
-	// code in its slots.
-	{Name: LoginShellSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0204",
-		Serves: loginShellVerbs()},
-	// A machine's power (novox/hq ADR 0211): its holder owns logind's power handling, places the
-	// code modules contribute for the power moments, and publishes the machine's power states as
-	// its events. Every machine has one — every machine boots and shuts down. No verbs yet.
-	{Name: PowerSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0211"},
-	// The machine's hotkeys (novox/hq ADR 0212): the daemon that sees the keys the window manager
-	// does not — a laptop's vendor keys — run by one module per machine, which owns its
-	// configuration. Every other module with keys contributes trigger lines to it.
-	{Name: HotkeysSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0212",
-		Receives: []Receivable{{Kind: "trigger", Comment: "#"}}},
-	// The machine's message bus (novox/hq ADR 0215): its holder owns the D-Bus implementation and its
-	// system service, never restarts it live, and publishes curated events about it, never its traffic.
-	// It receives nothing yet: packages ship their own policies.
-	{Name: MessageBusSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0215"},
-	// The machine's backups (novox/hq ADR 0214, to-be 43): its holder keeps nightly restore points of
-	// the data every module on the machine declares, on the machine, against mistakes rather than
-	// disasters. A module contributes `backup` lines — what to run to take a consistent copy, and
-	// which of its directories to keep.
-	{Name: BackupSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0214",
-		Serves: backupVerbs(),
-		// `backup` is what to run and which paths to keep; `data` every item a module declares, with its
-		// class, for the holder to measure (novox/hq ADR 0233). Both derived from modules' data sections.
-		Receives: []Receivable{{Kind: BackupKindBackup, Comment: "#", Dirs: true}, {Kind: BackupKindData, Comment: "#", Dirs: true}}},
-	// Deferred (novox/hq ADR 0121): renaming to mesh-private-network is a scope + server/client
-	// model change, not a rename, so it stays until that is built.
-	{Name: "the-private-network", Scope: ScopeNode, Decision: "novox/hq ADR 0110"},
-	// The program that manages the machine's own network. It delivers nothing: its holder keeps the
-	// manager and the mesh from contradicting each other — the private network's interface left
-	// alone — and writes the machine's resolver file itself, because the manager is what would
-	// otherwise rewrite it (novox/hq ADR 0223, which retired node-resolver-config into this seat).
-	// It never declares a link, an address or a wireless network, because the link is the only
-	// channel a fix could arrive on. A seat
-	// rather than a condition in the resolver's module, so a machine running two managers is
-	// refused at assignment instead of found by the resolver being rewritten (novox/hq ADR 0117).
-	//
-	// Its verbs say what the machine resolves through and over which links (novox/hq ADR 0241): the
-	// resolver file as it is and who wrote it, and every link with its addresses, routes and the resolvers
-	// the manager knows for it — the same for every holder, so a question about a machine's names is asked
-	// the same way whatever manages its network. Optional until both holders serve them.
-	//
-	// It owns the resolver file, stepping back for node-resolver where that is held (novox/hq ADR 0287,
-	// ADR 0247).
-	{Name: "node-uplink", Scope: ScopeNode, Decision: "novox/hq ADR 0117", Serves: uplinkVerbs(),
-		Paths: []SeatPath{{Path: ResolverFile, StepsBackFor: ResolverSeat}}},
-	// The machine's own resolver (novox/hq ADR 0247): held only where something requires `split-dns` — a
-	// VPN client whose domains must go to its own servers while every other name goes to the mesh's.
-	// Where it is held, its holder writes the resolver file and the uplink's holder steps back from it
-	// (node_resolver.go). It knows nothing of any VPN: its verbs route domains to servers over a link.
-	{Name: ResolverSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0247", Serves: resolverVerbs(),
-		Paths: []SeatPath{{Path: ResolverFile}}},
-	// A machine's shares and the shares it mounts (novox/hq ADR 0263): the holder of node-nfs-server
-	// exports a machine's folders to the private network and provides each as `nfs-share`; the holder of
-	// node-mounts writes a mount and an automount unit per share on a machine that asks (shares.go).
-	{Name: NFSServerSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0263", Serves: nfsServerVerbs()},
-	{Name: MountsSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0263", Serves: mountsVerbs()},
-	// A node's files and accounts, read (novox/hq ADR 0310, reads.go): by an account of the holder's own that holds
-	// no secret, on every node, so the reads ADR 0268 §5 takes over from the login shell's execute have a tool.
-	{Name: ReadsSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0310", Serves: readsVerbs()},
-	// A node's files, read and managed (novox/hq ADR 0394, files.go): beside node-reads until mesh-files is assigned
-	// on every node, then node-reads goes (ADR 0394 §9).
-	{Name: FilesSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0394", Serves: filesVerbs()},
-	// The node's engine's own verbs and asks (novox/hq ADR 0563 §1): held by the engine on every node, by no module.
-	engineSeat(),
-},
-	// The graphical session's roles (novox/hq ADR 0208), last because they are a workstation's.
-	graphicalSessionSeats()...)
+// fallback when it has none (novox/hq ADR 0122). **It is generated, never written here** (novox/hq ADR 0608 §5,
+// ADR 0613 §2, design 26 *The seat set has one source*): every seat's definition lives in mesh-contracts, and its
+// generated seat list is what this runtime reads, in the order a person reads it: the mesh's own, then a node's. What
+// a definition cannot say, being code, is attached here: a contribution kind's checks (withShapeCode).
+var defaultSeats = fromContracts(contractseats.List())
+
+// fromContracts is the generated seat list in this runtime's types, each data-shaped kind given its checks.
+func fromContracts(list []contractseats.Seat) []Seat {
+	out := make([]Seat, 0, len(list))
+	for _, c := range list {
+		s := Seat{Name: c.Name, Scope: c.Scope, Replicated: c.Replicated, Delivers: c.Delivers, Accepts: c.Accepts,
+			Emits: c.Emits, PulledByKind: c.PulledByKind, Yields: c.Yields, HeldByTheEngine: c.HeldByTheEngine,
+			Decision: c.Decision}
+		for _, v := range c.Serves {
+			s.Serves = append(s.Serves, Verb{Name: v.Name, Description: v.Description, Input: v.Input, Output: v.Output,
+				Optional: v.Optional, Replaces: v.Replaces})
+		}
+		for _, r := range c.Receives {
+			rv := Receivable{Kind: r.Kind, Comment: r.Comment, Dirs: r.Dirs, Offered: r.Offered}
+			if r.Shape != nil {
+				sh := &Shape{Order: r.Shape.Order, Examples: r.Shape.Examples, Text: r.Shape.Text}
+				for _, f := range r.Shape.Places {
+					sh.Places = append(sh.Places, PlaceField{Field: f.Field, Values: f.Values})
+				}
+				withShapeCode(c.Name, r.Kind, sh)
+				rv.Shape = sh
+			}
+			s.Receives = append(s.Receives, rv)
+		}
+		for _, p := range c.Paths {
+			s.Paths = append(s.Paths, SeatPath{Path: p.Path, StepsBackFor: p.StepsBackFor})
+		}
+		out = append(out, s)
+	}
+	return out
+}
 
 // seats is the working set the lookups read. It starts as the compiled defaults and is replaced by
 // what the control plane loaded from its store (novox/hq ADR 0122), so a change to the set is a
 // change to data, not to this code.
 var seats = defaultSeats
 
-// configInput is the schema of mesh-config's verb: a value of the key's own type (a number for a number, never its
-// text), and a limit that is a number; every other argument a string.
-func configInput() map[string]any {
-	in := schema(map[string]string{"action": "list (when not given), set, clear or history",
-		"key": "the config key", "value": "for set: the value, of the key's type",
-		"module": "a module: its own value, with node", "node": "a node",
-		"why": "for set and clear: why", "by": "who gave the value at the controller's terminal",
-		"limit": "for history: at most this many, newest"}, nil)
-	props := in["properties"].(map[string]any)
-	props["value"] = map[string]any{"description": "for set: the value, of the key's type: a number, a string, " +
-		"a boolean, or for a trusted key an object or a list"}
-	props["limit"] = map[string]any{"type": "number", "description": "for history: at most this many, newest"}
-	return in
-}
-
 // DefaultSeats is the set the mesh ships with, for seeding the store's seat table.
 func DefaultSeats() []Seat { return append([]Seat(nil), defaultSeats...) }
 
@@ -704,189 +326,9 @@ func SeatsWithAProtocol() []Seat {
 	return out
 }
 
-// serviceManagerVerbs is the contract every holder of node-service-manager serves (novox/hq ADR
-// 0177): the units on the machine in both scopes, read and acted on by name. Every verb takes an
-// optional scope — "system" when absent, "user" for the operator account's own manager — so a
-// caller asks for a user unit the way it asks for a system one; `failed` alone reads both managers
-// when none is named. `failed`, `reset-failed`, `wanted-by` and `unlink-dangling` are optional
-// (Verb.Optional) until every holder serves them (ADR 0246).
-func serviceManagerVerbs() []Verb {
-	scoped := func(more map[string]string, required []string) map[string]any {
-		props := map[string]string{"scope": "\"system\" (the default) or \"user\": the operator account's own manager"}
-		for k, v := range more {
-			props[k] = v
-		}
-		return schema(props, required)
-	}
-	unit := map[string]string{"unit": "the unit's name, as the service manager knows it"}
-	return []Verb{
-		{Name: "units", Description: "The units the service manager knows in a scope, each with its load, active and sub state; narrowed to a pattern when asked.",
-			Input: scoped(map[string]string{"pattern": "a glob the unit's name must match (optional)"}, nil), Replaces: []string{"systemctl list-units"}},
-		{Name: "status", Description: "One unit as the service manager sees it now: its states, whether it starts at boot, its main process, and whether the mesh declares it.",
-			Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl status", "systemctl is-active"}},
-		{Name: "start", Description: "Start one unit. For a unit the mesh declares, the answer says the host will restore what its declaration says at the next apply.",
-			Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl start"}},
-		{Name: "stop", Description: "Stop one unit; for a mesh-declared unit the answer says the host will restore its declared state.",
-			Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl stop"}},
-		{Name: "restart", Description: "Restart one unit.",
-			Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl restart"}},
-		{Name: "enable", Description: "Make one unit start at boot (or at the account's login, in user scope).",
-			Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl enable"}},
-		{Name: "disable", Description: "Stop one unit starting at boot (or at login, in user scope).",
-			Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl disable"}},
-		// **A window, not only a tail** (the operator's direction 2026-10-07): an incident is read for the
-		// minutes it happened in, and with no window on the verb a person reached for a shell. Every
-		// argument is the holder's to validate — passed to journalctl as one word of its own, never through
-		// a shell — and what the unit printed of a secret is redacted before it is answered.
-		{Name: "journal", Description: "The last lines of one unit's journal (at most 2000), in a time window and " +
-			"narrowed to a priority and to lines holding a text when asked. A secret the unit printed is shown as " +
-			"[redacted: <what it was>].",
-			Input: scoped(map[string]string{
-				"unit":     unit["unit"],
-				"lines":    "how many lines from the end of what matches (default 100, at most 2000)",
-				"since":    "the window's start: an RFC 3339 time (2026-10-07T09:30:00Z) or relative to now (-30min, -2h, yesterday) (optional)",
-				"until":    "the window's end, in the same forms (optional; now when absent)",
-				"match":    "only the lines holding this text, as written — a fixed string, not a pattern (optional)",
-				"priority": "only entries this severe or more: 0-7 or emerg, alert, crit, err, warning, notice, info, debug (optional)",
-			}, []string{"unit"}),
-			Replaces: []string{"journalctl"}},
-		// What has failed, on the seat rather than as one holder's own tool: whatever holds the role answers
-		// it, so a caller asks every machine the same way. **Optional while its holders catch up**: the
-		// systemd module running today serves it as its own systemd_failed, and a required verb would
-		// refuse it before the version serving `failed` could be delivered.
-		{Name: "failed", Optional: true, Description: "Every failed unit on this machine, in the system manager and in the operator " +
-			"account's; a manager that does not answer is reported with its error, never as nothing failed.",
-			Input:    schema(map[string]string{"scope": "\"system\" or \"user\": only that manager (both when absent)"}, nil),
-			Replaces: []string{"systemctl --failed"}},
-		// **Clearing a failed record, and finding what starts a unit** (novox/hq issue 332): a unit whose
-		// file is gone stays failed in its manager until the record is reset, and what keeps asking for it
-		// is a dependency or an enable link no verb could show. Required since every holder serves them
-		// (ADR 0246 step 3).
-		{Name: "reset-failed", Description: "Clear one unit's failed record in its manager — " +
-			"its failed state and its start-limit count — and answer its state after. It removes no file and " +
-			"starts nothing.",
-			Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl reset-failed"}},
-		{Name: "wanted-by", Description: "What wants, requires or triggers one unit, read-only: the " +
-			"manager's reverse dependencies (WantedBy, RequiredBy, UpheldBy, BoundBy, TriggeredBy and the rest) and " +
-			"every enable link naming it in the scope's configuration directories (*.wants, *.requires, *.upholds), " +
-			"each with where it points and whether it dangles — the account's own directory included in user scope.",
-			Input: scoped(unit, []string{"unit"}),
-			Replaces: []string{"systemctl list-dependencies --reverse", "systemctl show -p WantedBy",
-				"ls ~/.config/systemd/user/*.wants"}},
-		// **A dangling enable link removed on the person's word** (novox/hq issue 332): `systemctl disable`
-		// leaves a link whose unit file is gone, so the manager keeps asking for the unit. Required since
-		// every holder serves it (ADR 0246 step 3).
-		{Name: "unlink-dangling", Description: "Remove the dangling enable links named for one " +
-			"unit — links in a *.wants, *.requires or *.upholds directory of the account's or the machine's own " +
-			"configuration whose target does not exist, which `disable` leaves once the unit's file is gone — on " +
-			"the person's word: `why` is required. Each is recorded (its path, its target, the reason) before it is " +
-			"removed, and the manager reloaded; a link whose target exists, or one a package, a generator or the " +
-			"runtime placed, is left and said.",
-			Input: scoped(map[string]string{"unit": unit["unit"],
-				"why": "the person's reason for removing the links, kept in the record"}, []string{"unit", "why"}),
-			Replaces: []string{"rm ~/.config/systemd/user/*.wants/<unit>", "unlink /etc/systemd/system/*.wants/<unit>"}},
-	}
-}
-
-// uplinkVerbs is the contract every holder of node-uplink serves (novox/hq ADR 0241): read-only answers
-// about what the machine resolves through and over which links, whatever program manages its network.
-func uplinkVerbs() []Verb {
-	return []Verb{
-		{Name: "resolvers", Description: "The machine's resolver file as it is now: the resolvers, search " +
-			"domains and options it lists, whether it is the file the mesh declares, and when it is not, who " +
-			"wrote it as far as the machine shows — its header, a backup a VPN client left beside it, a link " +
-			"in its place, a known writer running.",
-			Input: schema(nil, nil), Optional: true},
-		{Name: "links", Description: "Every network link on the machine: its state, its addresses, whether " +
-			"the default route leaves through it, and the resolvers and search domains the network manager " +
-			"knows for it — a VPN's tunnel included.",
-			Input: schema(nil, nil), Optional: true},
-	}
-}
-
-// backupVerbs is the node-backup seat's protocol (novox/hq to-be 43): what is kept, take one now,
-// and restore beside the live data — never over it.
-func backupVerbs() []Verb {
-	return []Verb{
-		{Name: "backed-up", Description: "What this machine backs up: each module, what it declared, " +
-			"its last good night, how many restore points are kept and the repository's size.",
-			Input: schema(map[string]string{"module": "one module (optional)"}, nil), Replaces: []string{"restic snapshots"}},
-		{Name: "now", Description: "Take a backup now, of one module or of every module on this " +
-			"machine — before a migration, a retirement or anything else that could go wrong.",
-			Input: schema(map[string]string{"module": "one module (optional)"}, nil), Replaces: []string{"restic backup"}},
-		{Name: "restore", Description: "Restore one module's data from a restore point BESIDE the live " +
-			"data, never over it: each directory as <path>.restored-<date>. Swapping it in is a " +
-			"person's act. Lists the restore points when none is named.",
-			Input: schema(map[string]string{
-				"module":   "the module",
-				"snapshot": "the restore point (from `backed-up`; the newest when omitted)",
-				"path":     "one of the module's directories (all of them when omitted)",
-			}, []string{"module"}), Replaces: []string{"restic restore"}},
-	}
-}
-
-// loginShellVerbs is the contract of node-login-shell (novox/hq ADR 0176, ADR 0204): one command, run
-// the way the operator's own terminal would run it, bounded below the runtime's thirty-second call limit
-// so a hung command answers rather than times the caller out.
-//
-// **`execute` is optional** (novox/hq ADR 0268). It runs any command as the operator account, which can
-// become root without a person, so a machine may withhold it: the control-node does, through the
-// holder's own `execute` setting, until a call to it needs a person's approval (hq research 039). The mark
-// is ADR 0246's: a holder that does not serve the verb on a machine still holds the seat there, and its
-// silence on the bus is not judged — a holder withholding it serves nothing on the seat.
-func loginShellVerbs() []Verb {
-	return []Verb{
-		{Name: "execute", Optional: true, Description: "Run one command on this machine as the operator account, in a " +
-			"non-interactive login shell in its home; answers with what it printed and how it exited.",
-			Input: schema(map[string]string{
-				"command":         "the command line, as you would type it",
-				"timeout_seconds": "give up after this long, at most 25 (default 20)",
-			}, []string{"command"})},
-	}
-}
-
-// buildAskKinds are a build seat's accepted kinds, in the order a holder pulls them (ADR 0536 §4; mesh-sdk
-// delivery.AskKinds).
-func buildAskKinds() []string { return []string{"delivery", "check", "recheck"} }
-
-// buildSeatVerbs are what a build module answers on its own node for its seat (ADR 0525 §10).
-func buildSeatVerbs(language string) []Verb {
-	return []Verb{
-		{Name: "current", Description: "The " + language + " asks this node runs now (each ask's id, kind, module and when it " +
-			"started), its build capacity, and whether it is paused, taking no new ask.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "pause", Description: "Take no new " + language + " ask on this node until resumed; an ask running here " +
-			"ends in its place. Kept across a restart of the build module (its pause key). A capacity of 0 is the " +
-			"lasting way to keep a node from building.",
-			Input: schema(map[string]string{}, nil)},
-		{Name: "resume", Description: "Take " + language + " asks again on this node.",
-			Input: schema(map[string]string{}, nil)},
-	}
-}
-
 // BrokerSeat is the mesh's bus. Its holder is the bus, and its account — when it declares one — may
 // snapshot the bus's streams and do nothing else (novox/hq ADR 0235).
-const BrokerSeat = "mesh-broker"
-
-// vaultIntake is a two-step vault verb's arguments: what its first step names, then the call and what was sealed.
-// withHolders adds to `issued` the provision's holders from that provider (issue 749): a provider's tool may answer a
-// value for each, which the vault keeps as that holder's own and hands to it alone.
-func withHolders(input map[string]any) map[string]any {
-	props, _ := input["properties"].(map[string]any)
-	props["holders"] = map[string]any{"type": "array",
-		"description": "the provision's holders from that provider, each {node, module}: its tool may answer a value " +
-			"for each, kept as that holder's own and handed to it alone",
-		"items": map[string]any{"type": "object", "properties": map[string]any{
-			"node":   map[string]any{"type": "string", "description": "the holder's machine"},
-			"module": map[string]any{"type": "string", "description": "the consuming module"}}}}
-	return input
-}
-
-func vaultIntake(first map[string]string) map[string]string {
-	out := map[string]string{"call": "the second step: the call the first step answered",
-		"sealed": "the second step: the value sealed to the call's key — never the value"}
-	for k, v := range first {
-		out[k] = v
-	}
-	return out
-}
+//
+// Deprecated: a whole seat's name is mesh-contracts' (seats.MeshBroker, meshbroker.Seat); kept for its importers
+// until their next change takes it from there (testdata/seat-names.txt).
+const BrokerSeat = contractseats.MeshBroker

go/catalogue/seats_test.go

@@ -1,6 +1,10 @@
 package catalogue
 
 import (
+	"encoding/json"
+	"os"
+	"reflect"
+	"slices"
 	"testing"
 )
 
@@ -30,4 +34,105 @@ func TestUseSeatsReplacesTheSetButNeverEmptiesIt(t *testing.T) {
 	if len(Seats()) != 1 {
 		t.Fatalf("the working set is %d seats, not the one that was loaded", len(Seats()))
 	}
+
+	// **The compiled set is the generated one, and the move changed nothing a reader sees** (design 26, SD-M3, SDK-8):
+	// every seat the list mesh-sdk compiled before the move held (testdata, written from 5a38a12) is in the set
+	// generated from mesh-contracts' definitions, entry for entry, its verbs' optional marks and a kind's code
+	// included. A seat defined whole may add verbs, events and answers; the vault drops accept and move-asks (ADR 0620
+	// §3); three registry seats are new.
+	UseSeats(DefaultSeats())
+	type golden struct {
+		Seat
+		Optional  []string
+		ShapeCode []string
+	}
+	raw, err := os.ReadFile("testdata/seats-before-move.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	var compiled []golden
+	if err := json.Unmarshal(raw, &compiled); err != nil {
+		t.Fatal(err)
+	}
+	whole := []string{"npm-package-registry", "mesh-broker", "mesh-config", "mesh-vault", "mesh-delivery-checker", "node-engine"}
+	dropped := map[string]bool{"mesh-vault.accept": true, "mesh-vault.move-asks": true}
+	// Verbs a seat at the seat list's grain gained in the milestone, each optional until its holders serve it.
+	addedVerbs := map[string]bool{}
+	// A verb whose input the whole definition corrected: compose-candidate's input is the boolean the engine and the
+	// checker read, where the compiled list said a word (engine_compose_candidate_test.go reads it).
+	retyped := map[string]bool{"node-engine.compose-candidate": true}
+	norm := func(v any) any {
+		b, _ := json.Marshal(v)
+		var out any
+		_ = json.Unmarshal(b, &out)
+		return out
+	}
+	var names []string
+	for _, want := range compiled {
+		names = append(names, want.Name)
+		got, ok := SeatNamed(want.Name)
+		if !ok {
+			t.Errorf("%s left the generated set", want.Name)
+			continue
+		}
+		g := golden{Seat: got}
+		for _, v := range got.Serves {
+			if v.Optional {
+				g.Optional = append(g.Optional, v.Name)
+			}
+		}
+		for _, r := range got.Receives {
+			if r.Shape != nil && (r.Shape.Check != nil || r.Shape.Reads != nil) {
+				g.ShapeCode = append(g.ShapeCode, r.Kind)
+			}
+		}
+		g.Serves = slices.DeleteFunc(slices.Clone(g.Serves), func(v Verb) bool { return addedVerbs[want.Name+"."+v.Name] })
+		g.Optional = slices.DeleteFunc(g.Optional, func(n string) bool { return addedVerbs[want.Name+"."+n] })
+		if slices.Contains(whole, want.Name) {
+			want := &want
+			byName := map[string]Verb{}
+			for _, v := range got.Serves {
+				v.Output = nil
+				byName[v.Name] = v
+			}
+			var kept []Verb
+			for _, v := range want.Serves {
+				if dropped[want.Name+"."+v.Name] {
+					if _, still := byName[v.Name]; still {
+						t.Errorf("%s still serves %s", want.Name, v.Name)
+					}
+					continue
+				}
+				kv := byName[v.Name]
+				if retyped[want.Name+"."+v.Name] {
+					kv.Input = v.Input
+				}
+				kept = append(kept, kv)
+			}
+			g.Serves, g.Emits, g.Accepts = kept, want.Emits, want.Accepts
+			// A verb the whole seat added (new, optional while its holders catch up) is no verb of the compiled list.
+			g.Optional = slices.DeleteFunc(g.Optional, func(n string) bool {
+				return !slices.ContainsFunc(want.Serves, func(v Verb) bool { return v.Name == n })
+			})
+			if len(g.Optional) == 0 {
+				g.Optional = nil
+			}
+			want.Optional = slices.DeleteFunc(want.Optional, func(n string) bool { return dropped[want.Name+"."+n] })
+			want.Serves = slices.DeleteFunc(slices.Clone(want.Serves), func(v Verb) bool { return dropped[want.Name+"."+v.Name] })
+		}
+		if !reflect.DeepEqual(norm(g), norm(want)) {
+			gb, _ := json.Marshal(g)
+			wb, _ := json.Marshal(want)
+			t.Errorf("%s is not as the compiled list held it:\n got %s\nwant %s", want.Name, gb, wb)
+		}
+	}
+	var added []string
+	for _, s := range DefaultSeats() {
+		if !slices.Contains(names, s.Name) {
+			added = append(added, s.Name)
+		}
+	}
+	if want := []string{"go-package-registry", "container-image-registry", "oci-artifact-registry"}; !slices.Equal(added, want) {
+		t.Errorf("the generated set adds %v, want %v", added, want)
+	}
 }

go/catalogue/setting_defaults.go

@@ -31,6 +31,11 @@ type SettingDeclaration struct {
 	Required bool `json:"required,omitempty"`
 	// Runtime is a value the module's code reads at runtime rather than one placed in a file (ADR 0348 §5).
 	Runtime bool `json:"runtime,omitempty"`
+	// RenamedFrom is the value's old name, a config value of this module's own (novox/hq ADR 0609 §4, design 32 *A
+	// config value renamed*): on the merge mesh-config moves the value held under it to this name, and answers both
+	// names until every node-engine reports a build reading the new one. The config form only: the judge refuses it
+	// under `settings`, on a secret, and where it changes the value's trust.
+	RenamedFrom string `json:"renamed-from,omitempty"`
 }
 
 // KindPreference is the kind of a setting that may have a default.

go/catalogue/shares.go

@@ -1,80 +1,9 @@
 package catalogue
 
+import contractseats "git.novox.be/novox/mesh-contracts/go/seats"
+
 // NFSServerSeat is the role of the machine that shares directories over NFS (novox/hq ADR 0263).
-const NFSServerSeat = "node-nfs-server"
+const NFSServerSeat = contractseats.NodeNfsServer
 
 // MountsSeat is the role that mounts a machine's shares and occasional sources (novox/hq ADR 0263).
-const MountsSeat = "node-mounts"
-
-// nfsServerVerbs is the contract every holder of node-nfs-server serves (novox/hq ADR 0263).
-func nfsServerVerbs() []Verb {
-	return []Verb{
-		{Name: "exports", Description: "Every share this machine exports: its name, its path, read-write or " +
-			"read-only, the owner every client is mapped to (uid and gid), each node it is exported to with that " +
-			"node's private address and access (only the nodes the server grants it to and that ask for it), " +
-			"what is granted and not asked for or asked for and not granted, and whether the kernel holds it " +
-			"now. Also the exports found that are not the mesh's: a dataset's sharenfs property, a line in " +
-			"/etc/exports.",
-			Input:    schema(map[string]string{}, nil),
-			Replaces: []string{"exportfs -v", "cat /etc/exports", "zfs get sharenfs"}},
-		{Name: "clients", Description: "Which machines have mounted which share now, as the NFS server " +
-			"knows its clients.",
-			Input:    schema(map[string]string{}, nil),
-			Replaces: []string{"ss -tn sport = :2049", "cat /proc/fs/nfsd/clients/*/info"}},
-		{Name: "test", Description: "Whether this machine exports one share for the mesh now, and whether its " +
-			"NFS service is up; with an address, also whether the share is exported to that address: a node's " +
-			"own private address, when the server grants it the share and the node asks for it. What a machine " +
-			"mounting the share asks before it mounts.",
-			Input: schema(map[string]string{
-				"share":   "the share, by its name",
-				"address": "a node's private address, to ask whether the share is exported to it (optional)",
-			}, []string{"share"}),
-			Replaces: []string{"showmount -e"}},
-		{Name: "reload", Description: "Have the kernel read this machine's export files again now (exportfs " +
-			"-ra) and answer the shares as it then holds them. The module's own process writes its export " +
-			"file; this is for after a change made outside it. Changes no shared path.",
-			Input:    schema(map[string]string{}, nil),
-			Replaces: []string{"exportfs -ra"}},
-		{Name: "adopt", Description: "Take over an export a person made by hand: clear a dataset's sharenfs " +
-			"property for a path the mesh's own export now serves — only when that export is live. Without " +
-			"confirm, says what it would do and changes nothing.",
-			Input: schema(map[string]string{
-				"path":    "the shared path whose hand-made export is taken over",
-				"confirm": "\"true\": change it (needs why); anything else is a dry run",
-				"why":     "why, for the record",
-			}, []string{"path"}, "confirm"),
-			Replaces: []string{"zfs set sharenfs=off"}},
-	}
-}
-
-// mountsVerbs is the contract every holder of node-mounts serves (novox/hq ADR 0263).
-func mountsVerbs() []Verb {
-	return []Verb{
-		{Name: "list", Description: "Every mount point on this machine: its fstab line, the mesh's mount and " +
-			"automount units for it, its state (armed, mounted, absent, unreachable, failed) and since when, " +
-			"and which settings asked for it. A password in a mount's options is never shown.",
-			Input:    schema(map[string]string{}, nil),
-			Replaces: []string{"cat /etc/fstab", "findmnt", "systemctl list-units --type=mount"}},
-		{Name: "test", Description: "Whether one share's or occasional source's server answers from this " +
-			"machine now, without touching its mount point.",
-			Input:    schema(map[string]string{"name": "the share or source, by its name"}, []string{"name"}),
-			Replaces: []string{"showmount -e", "ping"}},
-		{Name: "mount", Description: "Mount one share or occasional source now, rather than at its first " +
-			"access.",
-			Input:    schema(map[string]string{"name": "the share or source, by its name"}, []string{"name"}),
-			Replaces: []string{"mount"}},
-		{Name: "unmount", Description: "Release one share or occasional source now; its automount stays " +
-			"armed, so the next access mounts it again.",
-			Input:    schema(map[string]string{"name": "the share or source, by its name"}, []string{"name"}),
-			Replaces: []string{"umount"}},
-		{Name: "adopt", Description: "Take over a mount a person wrote by hand: comment out the /etc/fstab " +
-			"line for a mount point the mesh's own units now serve, keeping a copy of the file — only when " +
-			"the mesh's automount for it is armed. Without confirm, says what it would do and changes nothing.",
-			Input: schema(map[string]string{
-				"mountpoint": "the mount point whose fstab line is taken over",
-				"confirm":    "\"true\": change it (needs why); anything else is a dry run",
-				"why":        "why, for the record",
-			}, []string{"mountpoint"}, "confirm"),
-			Replaces: []string{"sed -i /etc/fstab"}},
-	}
-}
+const MountsSeat = contractseats.NodeMounts

go/catalogue/state.go

@@ -31,9 +31,13 @@ type StateDeclaration struct {
 	// KeyTTL says each key of the bucket lives the time its writer gives it, and the server writes a delete marker
 	// when it ends (novox/hq ADR 0433 §1): the bucket is made with the server's time to live per message.
 	KeyTTL bool `json:"key-ttl,omitempty"`
+	// ReadOnly says only the module's processes whose own bus.state names the state write it; the module's tools,
+	// the tool runner's account, read it and never write it (the lead's ruling, 2026-11-04: nats' warrant spend record
+	// `spent`). The judge's rule and the grants follow from it.
+	ReadOnly bool `json:"read-only,omitempty"`
 }
 
-// UnmarshalJSON reads a bucket as its bare name, or as {name, history, ttl-seconds}.
+// UnmarshalJSON reads a bucket as its bare name, or as {name, history, ttl-seconds, per-machine, key-ttl, read-only}.
 func (s *StateDeclaration) UnmarshalJSON(raw []byte) error {
 	trimmed := bytes.TrimSpace(raw)
 	if len(trimmed) > 0 && trimmed[0] == '"' {
@@ -44,7 +48,7 @@ func (s *StateDeclaration) UnmarshalJSON(raw []byte) error {
 	dec := json.NewDecoder(bytes.NewReader(trimmed))
 	dec.DisallowUnknownFields()
 	if err := dec.Decode(&full); err != nil {
-		return fmt.Errorf("a state is either a name or {name, history, ttl-seconds, per-machine, key-ttl}: %w", typedUnknown(err))
+		return fmt.Errorf("a state is either a name or {name, history, ttl-seconds, per-machine, key-ttl, read-only}: %w", typedUnknown(err))
 	}
 	*s = StateDeclaration(full)
 	return nil
@@ -52,7 +56,7 @@ func (s *StateDeclaration) UnmarshalJSON(raw []byte) error {
 
 // MarshalJSON writes back the short form when there is nothing else to say.
 func (s StateDeclaration) MarshalJSON() ([]byte, error) {
-	if s.History == 0 && s.TTLSeconds == 0 && !s.PerMachine && !s.KeyTTL {
+	if s.History == 0 && s.TTLSeconds == 0 && !s.PerMachine && !s.KeyTTL && !s.ReadOnly {
 		return json.Marshal(s.Name)
 	}
 	type plain StateDeclaration

go/catalogue/state_test.go

@@ -2,6 +2,7 @@ package catalogue
 
 import (
 	"encoding/json"
+	"strings"
 	"testing"
 )
 
@@ -28,17 +29,25 @@ func TestAManifestMaySayWhatStateItKeepsAndReads(t *testing.T) {
 }
 
 // 1154/AC1: a state entry may say key-ttl; it is read, written back, and a bare name or an entry without it reads as before.
+// G-sdk-contracts 4: read-only likewise, and given twice it is refused.
 func TestAStateMayHaveKeysThatExpireOneByOne(t *testing.T) {
 	m, err := decodeForTest([]byte(`{"module":"mesh-delivery-watchman","version":"1",` +
-		`"state":[{"name":"pulse","key-ttl":true},"stuck",{"name":"seen","history":5}]}`))
+		`"state":[{"name":"pulse","key-ttl":true},"stuck",{"name":"seen","history":5},{"name":"spent","read-only":true}]}`))
 	if err != nil {
 		t.Fatal(err)
 	}
 	if !m.State[0].KeyTTL || m.State[1].KeyTTL || m.State[2].KeyTTL {
 		t.Fatalf("key-ttl not read as said: %+v", m.State)
 	}
+	if !m.State[3].ReadOnly || m.State[0].ReadOnly || m.State[1].ReadOnly {
+		t.Fatalf("read-only not read as said: %+v", m.State)
+	}
 	out, _ := json.Marshal(m.State)
-	if string(out) != `[{"name":"pulse","key-ttl":true},"stuck",{"name":"seen","history":5}]` {
+	if string(out) != `[{"name":"pulse","key-ttl":true},"stuck",{"name":"seen","history":5},{"name":"spent","read-only":true}]` {
 		t.Fatalf("written back as %s", out)
 	}
+	if _, err := decodeForTest([]byte(`{"module":"nats","version":"1","state":[{"name":"spent","read-only":true,"read-only":false}]}`)); err == nil ||
+		!strings.Contains(err.Error(), "the field state[0].read-only is given twice") {
+		t.Fatalf("read-only given twice: %v", err)
+	}
 }

go/catalogue/stream_work_queue_test.go

@@ -28,6 +28,15 @@ func TestAWorkQueueStreamIsDeclaredAndAccepted(t *testing.T) {
 		s.Days() != 1 || s.Cap() != 64 {
 		t.Fatalf("the stream read as %+v", s)
 	}
+	// ADR 0626 §1: the bus module's keeper declares keeps beside the rest of its bus, and it reads back.
+	k, err := decodeForTest([]byte(`{"module":"nats","version":"1","resources":[{"id":"keeper","type":"process",` +
+		`"run":["./keeper"],"bus":{"keeps":true,"state":["requests"]}}]}`))
+	if err != nil {
+		t.Fatalf("a keeper's bus was refused: %v", err)
+	}
+	if b, ok := k.ProcessBuses()["keeper"]; !ok || !b.Keeps {
+		t.Fatalf("the keeper's bus read as %+v", b)
+	}
 }
 
 // 1177/AC3: a stream with no retention composes as main does — limits retention, dropping its oldest — proven

go/catalogue/vault_seat_test.go

@@ -27,44 +27,17 @@ func TestTheVaultsSeatDeliversSecret(t *testing.T) {
 	}
 }
 
-// The vault answers `get` on request and reply (novox/hq ADR 0349 §11, issue 674): the seat promises the
-// verb, so a holder serving it is accepted — and, optional while the vault that runs is the TypeScript one,
-// so is a holder that does not yet.
-func TestTheVaultsSeatPromisesGet(t *testing.T) {
-	seat, _ := SeatNamed("mesh-vault")
-	var get *Verb
-	for i := range seat.Serves {
-		if seat.Serves[i].Name == "get" {
-			get = &seat.Serves[i]
-		}
-	}
-	if get == nil {
-		t.Fatal("the vault's seat does not promise get")
-	}
-	for _, arg := range []string{"name", "public_key"} {
-		if props, _ := get.Input["properties"].(map[string]any); props[arg] == nil {
-			t.Errorf("get takes no %s", arg)
-		}
-	}
-	serving := Manifest{Module: "mesh-vault", Provides: []Offer{{Name: "secret", Scope: ScopeMesh}},
-		Claims: []Claim{{Name: "mesh-vault", Scope: ScopeMesh, Serves: []string{"get"}}}}
-	if err := CanHold(serving, seat); err != nil {
-		t.Fatalf("the vault serving get was refused: %v", err)
-	}
-	notYet := Manifest{Module: "mesh-vault", Provides: []Offer{{Name: "secret", Scope: ScopeMesh}},
-		Claims: []Claim{{Name: "mesh-vault", Scope: ScopeMesh}}}
-	if err := CanHold(notYet, seat); err != nil {
-		t.Fatalf("the vault that does not serve get yet was refused: %v", err)
-	}
-}
-
 // The vault takes values in and rotates them (novox/hq ADR 0349 clauses 8 to 10, issue 675): the seat promises
-// accept, secret-ask, issued and rotate, each with the arguments of its steps; a holder serving them is accepted,
-// and, optional while the vault that runs does not, so is one that does not yet.
+// secret-ask, issued and rotate, each with the arguments of its steps; a holder serving them is accepted, and,
+// optional while the vault that runs does not, so is one that does not yet. And the move of the controller's secrets
+// (design 57's V3, issue 676): move-in, asked in two steps, never a value in the clear. accept and move-asks, which no
+// holder served and nothing called, are not the seat's (ADR 0620 §3); retire is, optional (design 32).
 func TestTheVaultsSeatPromisesItsIntakeVerbs(t *testing.T) {
 	seat, _ := SeatNamed("mesh-vault")
 	want := map[string][]string{
-		"accept":     {"node", "module", "name", "provider", "provision", "by", "call", "sealed"},
+		// get, on request and reply (ADR 0349 §11, issue 674); a vault not serving it yet still holds the seat
+		// (TestTheVaultsSeatDeliversSecret).
+		"get":        {"name", "public_key"},
 		"secret-ask": {"node", "module", "name", "desk", "asked_by", "outcome", "call", "sealed"},
 		"issued":     {"provision", "provider", "module", "call", "sealed", "holders"},
 		"rotate":     {"node", "module", "name", "provider", "provision", "by"},
@@ -76,6 +49,20 @@ func TestTheVaultsSeatPromisesItsIntakeVerbs(t *testing.T) {
 		"rotate-node":          {"node", "why", "act"},
 		"node-account-confirm": {},
 		"abandon":              {"node"},
+		"move-in": {"node", "module", "name", "provider", "provision", "consumer", "consumer_module", "local", "origin",
+			"generation", "made_at", "call", "sealed", "read_back_to"},
+		// And own (issue 1126): a machine's node-engine asks its own machine's secrets, sealed to its stated key.
+		"own":    {"credentials"},
+		"retire": {"node", "module", "name", "warrant"},
+		// Issue 786: node-key, optional while the vault that runs does not serve it.
+		"node-key": {"key"},
+	}
+	for _, gone := range []string{"accept", "move-asks"} {
+		for _, v := range seat.Serves {
+			if v.Name == gone {
+				t.Errorf("the vault's seat still promises %s, which no holder serves (ADR 0620 §3)", gone)
+			}
+		}
 	}
 	for name, args := range want {
 		var verb *Verb
@@ -124,70 +111,9 @@ func TestTheVaultsSeatPromisesItsIntakeVerbs(t *testing.T) {
 	}
 	serving := Manifest{Module: "mesh-vault", Provides: []Offer{{Name: "secret", Scope: ScopeMesh}},
 		Claims: []Claim{{Name: "mesh-vault", Scope: ScopeMesh,
-			Serves: []string{"get", "accept", "secret-ask", "issued", "rotate", "sign", "enrolment-token", "node-account",
-				"rotate-node", "node-account-confirm", "abandon"}}}}
+			Serves: []string{"get", "secret-ask", "issued", "rotate", "sign", "enrolment-token", "node-account",
+				"rotate-node", "node-account-confirm", "abandon", "move-in", "node-key", "own"}}}}
 	if err := CanHold(serving, seat); err != nil {
 		t.Fatalf("the vault serving its verbs was refused: %v", err)
 	}
 }
-
-// The move of the controller's secrets into the vault (design 57's V3, issue 676): the seat promises move-in, which a
-// machine's node-engine asks in two steps with the row, its origin and generation, then the value sealed to the
-// call's key and a key to read back to; and move-asks, the controller's record of asks copied as it is. Optional
-// while the vault that runs does not serve them; never a value in the clear.
-func TestTheVaultsSeatPromisesTheMove(t *testing.T) {
-	seat, _ := SeatNamed("mesh-vault")
-	want := map[string][]string{
-		"move-in": {"node", "module", "name", "provider", "provision", "consumer", "consumer_module", "local", "origin",
-			"generation", "made_at", "call", "sealed", "read_back_to"},
-		"move-asks": {"asks"},
-		// And own (issue 1126): a machine's node-engine asks its own machine's secrets, sealed to its stated key.
-		"own": {"credentials"},
-	}
-	for name, args := range want {
-		var verb *Verb
-		for i := range seat.Serves {
-			if seat.Serves[i].Name == name {
-				verb = &seat.Serves[i]
-			}
-		}
-		if verb == nil {
-			t.Errorf("the vault's seat does not promise %s", name)
-			continue
-		}
-		if !verb.Optional {
-			t.Errorf("%s is not optional while the vault that runs does not serve it", name)
-		}
-		props, _ := verb.Input["properties"].(map[string]any)
-		for _, arg := range args {
-			if props[arg] == nil {
-				t.Errorf("%s takes no %s", name, arg)
-			}
-		}
-		if props["value"] != nil {
-			t.Errorf("%s takes a value in the clear", name)
-		}
-	}
-	serving := Manifest{Module: "mesh-vault", Provides: []Offer{{Name: "secret", Scope: ScopeMesh}},
-		Claims: []Claim{{Name: "mesh-vault", Scope: ScopeMesh,
-			Serves: []string{"get", "accept", "secret-ask", "issued", "rotate", "move-in", "node-key", "move-asks", "own"}}}}
-	if err := CanHold(serving, seat); err != nil {
-		t.Fatalf("the vault serving the move was refused: %v", err)
-	}
-}
-
-// Issue 786: the vault's seat promises node-key, optional while the vault that runs does not serve it.
-func TestTheVaultsSeatPromisesNodeKey(t *testing.T) {
-	seat, _ := SeatNamed("mesh-vault")
-	for _, v := range seat.Serves {
-		if v.Name != "node-key" {
-			continue
-		}
-		props, _ := v.Input["properties"].(map[string]any)
-		if !v.Optional || props["key"] == nil {
-			t.Errorf("node-key: optional %v, key %v", v.Optional, props["key"])
-		}
-		return
-	}
-	t.Error("the vault's seat does not promise node-key")
-}

go/catalogue/verbs.go

@@ -4,8 +4,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"maps"
-	"slices"
 )
 
 // A Verb is one tool a role serves: its name, what it does, and the schema of its arguments and of
@@ -76,21 +74,6 @@ func VerbNames(verbs []Verb) []string {
 	return out
 }
 
-// schema is a JSON schema for an object of string properties, which is every argument the verbs
-// above take. Kept small on purpose: a schema an agent cannot read is a tool it cannot call. The
-// switches are the properties that are "true" or "false" and nothing else, said in the schema as an
-// enum so a caller sees it and the verb can refuse any other word rather than read it as false.
-//
-// **The schema is the whole of what a verb takes** (novox/hq issue 244): an argument it does not
-// name is refused when the verb is called, never passed over.
-// withObject adds to a verb's input s the property name, an object of the string fields given, each required.
-func withObject(s map[string]any, name, description string, fields map[string]string) map[string]any {
-	inner := schema(fields, slices.Sorted(maps.Keys(fields)))
-	inner["description"], inner["additionalProperties"] = description, false
-	s["properties"].(map[string]any)[name] = inner
-	return s
-}
-
 func schema(properties map[string]string, required []string, switches ...string) map[string]any {
 	isSwitch := map[string]bool{}
 	for _, s := range switches {

go/channel/channel.go

@@ -0,0 +1,141 @@
+// Package channel holds the shapes of the two kinded benches a channel holds, `channel` (to show and say) and `intake`
+// (to say what was chosen, and to ask a proof), and the subjects they travel on (novox/hq ADR 0259 §3). The router
+// sends a channel a Message, and a channel says a Choice, a LinkAsked, a Failed or its Standing, or asks a Code's proof.
+// Those benches are not defined whole, so their value layouts stay in mesh-sdk (novox/hq ADR 0625 §9, ADR 0627 §4);
+// the operator-channel seat's own ask and warrant are its contract's and its client's, in mesh-contracts.
+package channel
+
+import "time"
+
+// The benches (novox/hq ADR 0259 §3).
+const (
+	// ChannelSeat is the kinded bench a channel holds to show and say: its accepts carry the kind.
+	ChannelSeat = "channel"
+	// IntakeSeat is the kinded bench a channel holds to say what was chosen: its events and proofs carry
+	// the kind.
+	IntakeSeat = "intake"
+)
+
+// The work a channel takes, on ChannelSubject.
+const (
+	Show = "show" // a message offering answers
+	Edit = "edit" // a message shown before, replaced
+	Send = "send" // a message offering nothing
+)
+
+// ChannelSubject is where the router sends a channel of a kind its work.
+func ChannelSubject(verb, kind string) string {
+	return "mesh.seat." + ChannelSeat + ".accept." + verb + "." + kind
+}
+
+// What a channel says, on IntakeSubject.
+const (
+	Chosen = "choice" // a button tapped
+	Link   = "link"   // somebody asked to be linked as the operator
+)
+
+// IntakeSubject is where a channel of a kind says what arrived.
+func IntakeSubject(what, kind string) string {
+	return "mesh.seat." + IntakeSeat + ".event." + what + "." + kind
+}
+
+// CodeProof is the one proof verb: a code the operator typed, carried by request and reply, never kept.
+const CodeProof = "code"
+
+// ProofSubject is where a channel of a kind asks a proof.
+func ProofSubject(verb, kind string) string {
+	return "mesh.seat." + IntakeSeat + ".proof." + verb + "." + kind
+}
+
+// Button is one answer a channel offers: its label and the router's one-time ticket for it.
+type Button struct {
+	Label  string `json:"label"`
+	Ticket string `json:"ticket"`
+}
+
+// Message is the work a channel takes: shown with buttons (Show), shown again in place (Edit), or said
+// (Send). Handle is the router's name for it, the same across a show and its edits; the channel keeps
+// which of its own messages that is. The words are the router's, shown as given.
+type Message struct {
+	Handle  string   `json:"handle"`
+	Title   string   `json:"title"`
+	Body    string   `json:"body"`
+	Buttons []Button `json:"buttons,omitempty"`
+	// Note is the message's secondary words, after its body and its buttons: who asked and when, what each
+	// answer does, when it expires, and the ask's Details. A channel shows it smaller, collapsed or set apart
+	// where it can, and after the body where it cannot (novox/hq issue 639). A channel that bounds a message's
+	// length cuts the body first and the note only when the title and the note alone do not fit, saying each
+	// cut (novox/hq ADR 0347 §5).
+	Note   string `json:"note,omitempty"`
+	Urgent bool   `json:"urgent,omitempty"`
+	Silent bool   `json:"silent,omitempty"`
+	// Reply is the Choice or LinkAsked this answers, by its ID: the channel shows it where that was made.
+	Reply string `json:"reply,omitempty"`
+	// To is the account linked as the operator on this kind, for a channel that verifies its sender: where
+	// the channel sends what is not a reply. The router's word, from its list; empty when none is linked.
+	To string `json:"to,omitempty"`
+	// Secret says the words carry something shown once (a link's code): the channel shows it and keeps no
+	// copy of it — no state, no history of its own.
+	Secret bool `json:"secret,omitempty"`
+}
+
+// Sender is who a channel's service says sent something: the account, the name it shows, and whether the
+// service authenticated it. The router alone judges whether that is the operator.
+type Sender struct {
+	Identity      string `json:"identity"`
+	Display       string `json:"display,omitempty"`
+	Authenticated bool   `json:"authenticated"`
+}
+
+// Failed is a message a channel could not deliver: its handle, why, and whether trying again could help.
+type Failed struct {
+	Handle    string    `json:"handle"`
+	Why       string    `json:"why"`
+	Permanent bool      `json:"permanent,omitempty"`
+	At        time.Time `json:"at"`
+}
+
+// Standing is what a channel says of itself, at least every five minutes and whenever it changes:
+// whether it can send now, why not, and whether its edits notify nobody.
+type Standing struct {
+	Ready         bool      `json:"ready"`
+	Why           string    `json:"why,omitempty"`
+	EditsSilently bool      `json:"edits-silently,omitempty"`
+	At            time.Time `json:"at"`
+}
+
+// What a channel says of its own delivery, on IntakeSubject.
+const (
+	FailedWhat   = "failed"
+	StandingWhat = "standing"
+)
+
+// Choice is a button chosen on a channel.
+type Choice struct {
+	// ID is the channel's own for this arrival, unique, so the router acts on it once.
+	ID     string    `json:"id"`
+	Ticket string    `json:"ticket"`
+	Handle string    `json:"handle,omitempty"`
+	Sender Sender    `json:"sender"`
+	At     time.Time `json:"at"`
+}
+
+// LinkAsked is somebody on a channel asking to be linked as the operator.
+type LinkAsked struct {
+	ID     string    `json:"id"`
+	Sender Sender    `json:"sender"`
+	At     time.Time `json:"at"`
+}
+
+// Code is a code a person typed on a channel, asked as a proof: never in an event, never kept.
+type Code struct {
+	Sender  Sender `json:"sender"`
+	Code    string `json:"code"`
+	Purpose string `json:"purpose"`
+}
+
+// ProofAnswer is the router's answer to a proof: whether it was taken, and words to say to the person.
+type ProofAnswer struct {
+	Accepted bool   `json:"accepted"`
+	Words    string `json:"words"`
+}

go/channel/channel_test.go

@@ -0,0 +1,32 @@
+package channel
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+)
+
+func TestTheSubjectsNameTheirPublisher(t *testing.T) {
+	for got, want := range map[string]string{
+		ChannelSubject(Show, "telegram"):    "mesh.seat.channel.accept.show.telegram",
+		IntakeSubject(Chosen, "desktop"):    "mesh.seat.intake.event.choice.desktop",
+		ProofSubject(CodeProof, "telegram"): "mesh.seat.intake.proof.code.telegram",
+	} {
+		if got != want {
+			t.Errorf("%s, want %s", got, want)
+		}
+	}
+}
+
+// A message's note travels beside its body, and is left out of the encoding when empty, so a channel older
+// than it reads every message it read before.
+func TestAMessageCarriesItsNoteApart(t *testing.T) {
+	raw, _ := json.Marshal(Message{Handle: "h", Title: "t", Body: "b", Note: "Asked by x."})
+	if !strings.Contains(string(raw), `"note":"Asked by x."`) {
+		t.Fatalf("the note is not encoded: %s", raw)
+	}
+	raw, _ = json.Marshal(Message{Handle: "h", Title: "t"})
+	if strings.Contains(string(raw), "note") {
+		t.Fatalf("an empty note is encoded: %s", raw)
+	}
+}

go/composer/composer.go

@@ -59,6 +59,11 @@ type Request struct {
 	// longer read: the composer judges no manifest (novox/hq ADR 0578 §5), the indexer's judge does, and its verdicts
 	// come in each case's Verdicts. Kept so an asker that still sends it is read.
 	Predefined catalogue.PredefinedList `json:"predefined,omitempty"`
+	// Packages are the known packages a manifest's `packages` may name, each by its name in its own ecosystem (design 32:
+	// a Go package's go.mod module path, a TypeScript package's package.json name), for the indexer's judge (novox/hq ADR
+	// 0578 §5, ADR 0606 §4); the composer does not read them. Nil is no list at hand, and the judge judges no name; an
+	// empty list is a list, and every name is unknown to it.
+	Packages []string `json:"packages,omitzero"`
 }
 
 // Case is one catalogue composed: every module's manifest by name, and per node the manifests kept at the build it runs.

go/composer/composer_test.go

@@ -39,6 +39,18 @@ func TestAManifestIsItsBytesOrItsDigest(t *testing.T) {
 	if asked != 2 || string(back.Cases[0].Manifests["demo"].Raw) != demo || string(back.Cases[0].Kept["laptop"]["demo"].Raw) != demo {
 		t.Fatalf("filled %d times: %+v", asked, back.Cases[0])
 	}
+	// The known packages: none is no list (not on the wire), an empty list is a list, and a list reads back whole.
+	for _, known := range [][]string{nil, {}, {"git.novox.be/novox/mesh-sdk", "@novox/mesh-sdk"}} {
+		wire, err := json.Marshal(Request{V: Version, Packages: known})
+		if err != nil {
+			t.Fatal(err)
+		}
+		back, err := Decode(wire)
+		if err != nil || (back.Packages == nil) != (known == nil) || strings.Join(back.Packages, ",") != strings.Join(known, ",") ||
+			known == nil && strings.Contains(string(wire), "packages") {
+			t.Errorf("the known packages %#v went as %s and read back %#v (%v)", known, wire, back.Packages, err)
+		}
+	}
 	bad := Request{V: Version, Cases: []Case{{Name: "c", Manifests: map[string]Manifest{"x": {Digest: "nope"}}}}}
 	if err := Fill(&bad, func(string) ([]byte, error) { return nil, errors.New("not there") }); err == nil || !strings.Contains(err.Error(), "nope") {
 		t.Fatalf("a digest the indexer does not hold: %v", err)

go/declaration/adoption_test.go

@@ -16,7 +16,7 @@ const adoptedResources = `"resources":[
 
 const sixtyFour = "0000000000000000000000000000000000000000000000000000000000000000"
 
-func TestAnAdoptionIsReadWithTheDeclaration(t *testing.T) {
+func testAnAdoptionIsReadWithTheDeclaration(t *testing.T) {
 	d, err := Parse([]byte(`{"adoption":{"taken":["postgres"],"untaken":{"hello-web":["hello-web.page","hello-web.server"]}},
 	  "declaration":1,` + adoptedResources + `}`))
 	if err != nil {
@@ -36,7 +36,7 @@ func TestAnAdoptionIsReadWithTheDeclaration(t *testing.T) {
 	}
 }
 
-func TestADeclarationWithNoAdoptionIsConverged(t *testing.T) {
+func testADeclarationWithNoAdoptionIsConverged(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,` + adoptedResources + `}`))
 	if err != nil {
 		t.Fatal(err)
@@ -49,7 +49,7 @@ func TestADeclarationWithNoAdoptionIsConverged(t *testing.T) {
 	}
 }
 
-func TestAnAdoptionNamingAnUnknownIDIsRefused(t *testing.T) {
+func testAnAdoptionNamingAnUnknownIDIsRefused(t *testing.T) {
 	refusal := refusalFor(t, `{"adoption":{"taken":[],"untaken":{"hello-web":["hello-web.missing"]}},
 	  "declaration":1,`+adoptedResources+`}`)
 	if !strings.Contains(strings.Join(refusal.Problems, "\n"), "hello-web.missing") {
@@ -57,7 +57,7 @@ func TestAnAdoptionNamingAnUnknownIDIsRefused(t *testing.T) {
 	}
 }
 
-func TestAnAdoptionMayNameAResourceOfAnyKind(t *testing.T) {
+func testAnAdoptionMayNameAResourceOfAnyKind(t *testing.T) {
 	// A directory, a service or an action can reach what was found as surely as a file can, so
 	// the controller lists every resource of an untaken module (novox/hq ADR 0103).
 	d, err := Parse([]byte(`{"adoption":{"taken":[],"untaken":{"hello-web":["hello-web.data"]}},
@@ -70,7 +70,7 @@ func TestAnAdoptionMayNameAResourceOfAnyKind(t *testing.T) {
 	}
 }
 
-func TestAnIDUnderTwoModulesIsRefused(t *testing.T) {
+func testAnIDUnderTwoModulesIsRefused(t *testing.T) {
 	refusal := refusalFor(t, `{"adoption":{"taken":[],"untaken":{"a":["hello-web.page"],"b":["hello-web.page"]}},
 	  "declaration":1,`+adoptedResources+`}`)
 	if !strings.Contains(strings.Join(refusal.Problems, "\n"), "both") {
@@ -78,7 +78,7 @@ func TestAnIDUnderTwoModulesIsRefused(t *testing.T) {
 	}
 }
 
-func TestAModuleBothTakenAndUntakenIsRefused(t *testing.T) {
+func testAModuleBothTakenAndUntakenIsRefused(t *testing.T) {
 	refusal := refusalFor(t, `{"adoption":{"taken":["hello-web"],"untaken":{"hello-web":["hello-web.page"]}},
 	  "declaration":1,`+adoptedResources+`}`)
 	if !strings.Contains(strings.Join(refusal.Problems, "\n"), "both taken and untaken") {
@@ -86,7 +86,7 @@ func TestAModuleBothTakenAndUntakenIsRefused(t *testing.T) {
 	}
 }
 
-func TestTheMeshsOwnResourcesAreNeverUntaken(t *testing.T) {
+func testTheMeshsOwnResourcesAreNeverUntaken(t *testing.T) {
 	refusal := refusalFor(t, `{"adoption":{"taken":[],"untaken":{"x":["adoption.guard"]}},
 	  "declaration":1,"resources":[
 	  {"id":"adoption.guard","type":"file","path":"/etc/mesh/guard.nft","content":"x"}]}`)
@@ -95,11 +95,11 @@ func TestTheMeshsOwnResourcesAreNeverUntaken(t *testing.T) {
 	}
 }
 
-func TestAnAdoptionWithAnUnknownFieldIsRefused(t *testing.T) {
+func testAnAdoptionWithAnUnknownFieldIsRefused(t *testing.T) {
 	refusalFor(t, `{"adoption":{"taken":[],"held":["x"]},"declaration":1,`+adoptedResources+`}`)
 }
 
-func TestACarriedBundleCannotSayTheNodeIsAdopted(t *testing.T) {
+func testACarriedBundleCannotSayTheNodeIsAdopted(t *testing.T) {
 	_, err := ParseTrusted([]byte(`{"adoption":{"taken":[]},"declaration":1,` + adoptedResources + `}`))
 	if err == nil || !strings.Contains(err.Error(), "only the mesh can say") {
 		t.Fatalf("a bundle claiming adoption was not refused: %v", err)
@@ -107,7 +107,7 @@ func TestACarriedBundleCannotSayTheNodeIsAdopted(t *testing.T) {
 }
 
 // novox/hq ADR 0105: a service may take over a found tunnel, said whole and on an adopted node.
-func TestTakingOverATunnelIsSaidWholeAndForARunningService(t *testing.T) {
+func testTakingOverATunnelIsSaidWholeAndForARunningService(t *testing.T) {
 	adoptedWith := func(service string) error {
 		_, err := Parse([]byte(`{"declaration":1,"adoption":{"taken":[]},"resources":[` + service + `]}`))
 		return err
@@ -130,3 +130,17 @@ func TestTakingOverATunnelIsSaidWholeAndForARunningService(t *testing.T) {
 		}
 	}
 }
+
+// TestAdoption holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestAdoption(t *testing.T) {
+	t.Run("AnAdoptionIsReadWithTheDeclaration", testAnAdoptionIsReadWithTheDeclaration)
+	t.Run("ADeclarationWithNoAdoptionIsConverged", testADeclarationWithNoAdoptionIsConverged)
+	t.Run("AnAdoptionNamingAnUnknownIDIsRefused", testAnAdoptionNamingAnUnknownIDIsRefused)
+	t.Run("AnAdoptionMayNameAResourceOfAnyKind", testAnAdoptionMayNameAResourceOfAnyKind)
+	t.Run("AnIDUnderTwoModulesIsRefused", testAnIDUnderTwoModulesIsRefused)
+	t.Run("AModuleBothTakenAndUntakenIsRefused", testAModuleBothTakenAndUntakenIsRefused)
+	t.Run("TheMeshsOwnResourcesAreNeverUntaken", testTheMeshsOwnResourcesAreNeverUntaken)
+	t.Run("AnAdoptionWithAnUnknownFieldIsRefused", testAnAdoptionWithAnUnknownFieldIsRefused)
+	t.Run("ACarriedBundleCannotSayTheNodeIsAdopted", testACarriedBundleCannotSayTheNodeIsAdopted)
+	t.Run("TakingOverATunnelIsSaidWholeAndForARunningService", testTakingOverATunnelIsSaidWholeAndForARunningService)
+}

go/declaration/block_test.go

@@ -8,7 +8,7 @@ import (
 // Defends novox/hq issue 128: a file written into a block carries only its lines, in content,
 // never a line the host keeps as its own marker, and says where a new region goes only as a block.
 
-func TestAFileWrittenIntoABlockIsRefusedUnlessItIsOnlyItsLines(t *testing.T) {
+func testAFileWrittenIntoABlockIsRefusedUnlessItIsOnlyItsLines(t *testing.T) {
 	for name, c := range map[string]struct{ resource, refusal string }{
 		"a begin marker in content": {`{"id":"f","type":"file","path":"/etc/hosts","into":"block","content":"a\n# BEGIN mesh f\nb\n"}`, "# BEGIN mesh f"},
 		"an end marker in content":  {`{"id":"f","type":"file","path":"/etc/hosts","into":"block","content":"a\n# END mesh other\n"}`, "# END mesh other"},
@@ -30,7 +30,7 @@ func TestAFileWrittenIntoABlockIsRefusedUnlessItIsOnlyItsLines(t *testing.T) {
 	}
 }
 
-func TestAFileWrittenIntoABlockIsRead(t *testing.T) {
+func testAFileWrittenIntoABlockIsRead(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"mesh-wireguard.fact-node-names","type":"file","path":"/etc/hosts","into":"block","content":"10.42.0.1 ace\n# BEGIN devtool x\n"},
 	  {"id":"dhcpcd.options","type":"file","path":"/etc/dhcpcd.conf","into":"block","content":"nohook resolv.conf\n","at":"start"},
@@ -50,3 +50,9 @@ func TestAFileWrittenIntoABlockIsRead(t *testing.T) {
 		t.Errorf("the markers are %q and %q", begin, end)
 	}
 }
+
+// TestBlock holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestBlock(t *testing.T) {
+	t.Run("AFileWrittenIntoABlockIsRefusedUnlessItIsOnlyItsLines", testAFileWrittenIntoABlockIsRefusedUnlessItIsOnlyItsLines)
+	t.Run("AFileWrittenIntoABlockIsRead", testAFileWrittenIntoABlockIsRead)
+}

go/declaration/cron_test.go

@@ -9,7 +9,7 @@ import (
 // arrival and computes the next due minute the scheduler fires on (novox/hq ADR 0053). These test
 // the parsing and the evaluation; the firing is tested against the scheduler.
 
-func TestParseCronRefusesMalformed(t *testing.T) {
+func testParseCronRefusesMalformed(t *testing.T) {
 	for _, expr := range []string{
 		"",             // nothing
 		"* * * *",      // four fields
@@ -31,7 +31,7 @@ func TestParseCronRefusesMalformed(t *testing.T) {
 	}
 }
 
-func TestParseCronAcceptsTheOrdinaryForms(t *testing.T) {
+func testParseCronAcceptsTheOrdinaryForms(t *testing.T) {
 	for _, expr := range []string{
 		"* * * * *",      // every minute
 		"0 3 * * *",      // 03:00 daily
@@ -47,7 +47,7 @@ func TestParseCronAcceptsTheOrdinaryForms(t *testing.T) {
 	}
 }
 
-func TestCronNextIsTheNextMatchingMinute(t *testing.T) {
+func testCronNextIsTheNextMatchingMinute(t *testing.T) {
 	// A Monday at 12:00:30, so "next" must round up to a whole minute and land on the first match
 	// strictly after now — never re-firing the minute we are already in.
 	now := time.Date(2026, 9, 7, 12, 0, 30, 0, time.UTC) // 2026-09-07 is a Monday
@@ -77,7 +77,7 @@ func TestCronNextIsTheNextMatchingMinute(t *testing.T) {
 	}
 }
 
-func TestCronDayFieldsAreOredWhenBothRestricted(t *testing.T) {
+func testCronDayFieldsAreOredWhenBothRestricted(t *testing.T) {
 	// The standard cron surprise: when day-of-month and day-of-week are both set, a day matches if
 	// EITHER does. "1 * 13 * 5" is due on the 13th OR on any Friday. 2026-09-07 is a Monday the 7th
 	// — neither — and 2026-09-11 is a Friday, and 2026-11-13 is the 13th.
@@ -98,3 +98,11 @@ func TestCronDayFieldsAreOredWhenBothRestricted(t *testing.T) {
 		t.Error("a Monday the 7th matched a cron restricted to the 13th OR Friday")
 	}
 }
+
+// TestCron holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestCron(t *testing.T) {
+	t.Run("ParseCronRefusesMalformed", testParseCronRefusesMalformed)
+	t.Run("ParseCronAcceptsTheOrdinaryForms", testParseCronAcceptsTheOrdinaryForms)
+	t.Run("CronNextIsTheNextMatchingMinute", testCronNextIsTheNextMatchingMinute)
+	t.Run("CronDayFieldsAreOredWhenBothRestricted", testCronDayFieldsAreOredWhenBothRestricted)
+}

go/declaration/declaration.go

@@ -1368,8 +1368,14 @@ type Container struct {
 	Module string `json:"module,omitempty"`
 	Name   string `json:"name"`
 	// Image is pinned by digest (novox/hq ADR 0006) — a tag moves and a digest does not.
-	Image string            `json:"image"`
-	Env   map[string]string `json:"env,omitempty"`
+	Image string `json:"image"`
+	// ImageSeat and ImageHolder say, beside an image the composition routed through a store, the seat the reference came
+	// through and that seat's holder (novox/hq design 51, issue 1966 ENG-10): what the node-engine finds the holder to wait
+	// on when the pull fails. Not part of what a container is: they are no part of its spec or digest, so a declaration
+	// composed again for a new holder replaces no container.
+	ImageSeat   string            `json:"image-seat,omitempty"`
+	ImageHolder string            `json:"image-holder,omitempty"`
+	Env         map[string]string `json:"env,omitempty"`
 	// EnvFile names files the runtime reads environment from, in order.
 	//
 	// **Because a secret may not travel in Env.** A declaration reaches a node over the broker,

go/declaration/declaration_test.go

@@ -30,7 +30,7 @@ func refusalFor(t *testing.T, raw string) *RefusalError {
 	return refusal
 }
 
-func TestAValidDeclarationParsesInOrder(t *testing.T) {
+func testAValidDeclarationParsesInOrder(t *testing.T) {
 	d, err := Parse([]byte(valid()))
 	if err != nil {
 		t.Fatalf("unexpected refusal: %v", err)
@@ -45,7 +45,7 @@ func TestAValidDeclarationParsesInOrder(t *testing.T) {
 	}
 }
 
-func TestAnUnknownTypeRefusesTheWholeDeclaration(t *testing.T) {
+func testAnUnknownTypeRefusesTheWholeDeclaration(t *testing.T) {
 	// The property everything else rests on. A host that skipped what it did not understand
 	// would apply most of a declaration and report success — a node that looks configured and
 	// is not, which is 04-ISSUES/003 with the declaration on the other side of the wire.
@@ -64,7 +64,7 @@ func TestAnUnknownTypeRefusesTheWholeDeclaration(t *testing.T) {
 	}
 }
 
-func TestAnUnknownFieldIsRefused(t *testing.T) {
+func testAnUnknownFieldIsRefused(t *testing.T) {
 	// A field the host does not know is a thing the control plane believes it asked for.
 	refusal := refusalFor(t, `{"declaration":1,"resources":[
 	  {"id":"conf","type":"file","path":"/etc/x","content":"a","immutable":true}
@@ -74,7 +74,7 @@ func TestAnUnknownFieldIsRefused(t *testing.T) {
 	}
 }
 
-func TestAFieldTheTypeDoesNotUseIsRefusedNotIgnored(t *testing.T) {
+func testAFieldTheTypeDoesNotUseIsRefusedNotIgnored(t *testing.T) {
 	// The same fault in miniature: set and ignored means the control plane believes it asked
 	// for something the host will never do.
 	refusal := refusalFor(t, `{"declaration":1,"resources":[
@@ -86,7 +86,7 @@ func TestAFieldTheTypeDoesNotUseIsRefusedNotIgnored(t *testing.T) {
 	}
 }
 
-func TestAnUnknownVersionIsRefusedWhole(t *testing.T) {
+func testAnUnknownVersionIsRefusedWhole(t *testing.T) {
 	// An older host handed a newer vocabulary must not quietly do half of it.
 	refusal := refusalFor(t, `{"declaration":99,"resources":[
 	  {"id":"a","type":"directory","path":"/etc/mesh"}
@@ -102,7 +102,7 @@ func TestAnUnknownVersionIsRefusedWhole(t *testing.T) {
 	}
 }
 
-func TestEveryProblemIsReportedAtOnce(t *testing.T) {
+func testEveryProblemIsReportedAtOnce(t *testing.T) {
 	// A declaration is generated, so a person reading a refusal is debugging the generator.
 	// Fixing one problem at a time and re-running to find the next wastes their afternoon.
 	refusal := refusalFor(t, `{"declaration":1,"resources":[
@@ -115,7 +115,7 @@ func TestEveryProblemIsReportedAtOnce(t *testing.T) {
 	}
 }
 
-func TestIdentityIsRequiredAndUnique(t *testing.T) {
+func testIdentityIsRequiredAndUnique(t *testing.T) {
 	// Identity is what lets the store know this is the same resource it applied last time,
 	// which is what makes removal possible at all.
 	refusal := refusalFor(t, `{"declaration":1,"resources":[
@@ -127,7 +127,7 @@ func TestIdentityIsRequiredAndUnique(t *testing.T) {
 	}
 }
 
-func TestModeIsRefusedUnlessItMeansWhatItLooksLike(t *testing.T) {
+func testModeIsRefusedUnlessItMeansWhatItLooksLike(t *testing.T) {
 	// "644" and "0644" differ, and the one that looks right in a manifest is the four-digit
 	// form. Accepting both would make a mode mean two things.
 	for _, mode := range []string{"644", "0999", "rwxr-xr-x", "07777777"} {
@@ -145,7 +145,7 @@ func TestModeIsRefusedUnlessItMeansWhatItLooksLike(t *testing.T) {
 	}
 }
 
-func TestARefusalSaysNothingWasApplied(t *testing.T) {
+func testARefusalSaysNothingWasApplied(t *testing.T) {
 	// The reader's first question is whether the machine was left half-changed.
 	refusal := refusalFor(t, `{"declaration":1,"resources":[{"id":"x","type":"nope"}]}`)
 	if !strings.Contains(refusal.Error(), "none of it was applied") {
@@ -153,13 +153,13 @@ func TestARefusalSaysNothingWasApplied(t *testing.T) {
 	}
 }
 
-func TestAnEmptyDeclarationIsAMistake(t *testing.T) {
+func testAnEmptyDeclarationIsAMistake(t *testing.T) {
 	refusalFor(t, `{"declaration":1,"resources":[]}`)
 }
 
 // --- the vocabulary the foundation bootstrap needs (novox/hq 07-the-foundation.md) ---
 
-func TestAnActionOverTheLinkIsRefused(t *testing.T) {
+func testAnActionOverTheLinkIsRefused(t *testing.T) {
 	// novox/hq ADR 0005. The link may push declarations of known shape and never a command to
 	// run. This is the boundary the whole security argument rests on, so it is asserted
 	// directly rather than inferred from the type list.
@@ -179,7 +179,7 @@ func TestAnActionOverTheLinkIsRefused(t *testing.T) {
 	}
 }
 
-func TestAnActionWithoutVerifyIsRefused(t *testing.T) {
+func testAnActionWithoutVerifyIsRefused(t *testing.T) {
 	// An action that runs and reports success without reading anything back is the fault this
 	// host exists to prevent. Verify is also the idempotency check, so an action without one
 	// cannot be applied twice safely either.
@@ -194,7 +194,7 @@ func TestAnActionWithoutVerifyIsRefused(t *testing.T) {
 	}
 }
 
-func TestAnImageMustBePinnedByDigest(t *testing.T) {
+func testAnImageMustBePinnedByDigest(t *testing.T) {
 	// novox/hq ADR 0006: reproducibility comes from pinning the identity of a thing. A bundle
 	// naming a tag pins nothing — it names whatever that tag points at on the day it runs.
 	for _, image := range []string{
@@ -226,7 +226,7 @@ func TestAnImageMustBePinnedByDigest(t *testing.T) {
 // can start. The mesh's own control plane is built from source and lives in no public registry; a
 // machine that built it, or was handed it, names it by what it is — a content address, not a name,
 // and immutable in exactly the way the rule asks for.
-func TestAnImageTheMachineHoldsIsNamedByItsOwnDigest(t *testing.T) {
+func testAnImageTheMachineHoldsIsNamedByItsOwnDigest(t *testing.T) {
 	held := "sha256:" + strings.Repeat("b", 64)
 	if _, err := ParseTrusted([]byte(`{"declaration":1,"resources":[
 	  {"id":"control","type":"container","name":"mesh-controller","image":"` + held + `"}
@@ -245,7 +245,7 @@ func TestAnImageTheMachineHoldsIsNamedByItsOwnDigest(t *testing.T) {
 	}
 }
 
-func TestAFieldTheNewTypesDoNotUseIsRefused(t *testing.T) {
+func testAFieldTheNewTypesDoNotUseIsRefused(t *testing.T) {
 	// The field-set check must cover the types added last, not only the three it was written
 	// for. A package that carries a `content` is a control plane believing it asked for
 	// something that will never happen.
@@ -266,7 +266,7 @@ func TestAFieldTheNewTypesDoNotUseIsRefused(t *testing.T) {
 	}
 }
 
-func TestTheVocabularyIsTheTwelveShapesTheMeshNeeds(t *testing.T) {
+func testTheVocabularyIsTheTwelveShapesTheMeshNeeds(t *testing.T) {
 	// Six of them the bootstrap uses (novox/hq 07-the-foundation.md), and removing one is a
 	// failing test rather than a discovery during a first-node install.
 	//
@@ -320,7 +320,7 @@ func TestTheVocabularyIsTheTwelveShapesTheMeshNeeds(t *testing.T) {
 	}
 }
 
-func TestADeclarationFromDiskMayBeAnnotated(t *testing.T) {
+func testADeclarationFromDiskMayBeAnnotated(t *testing.T) {
 	// The bundle in this repository is mostly explanation of why each digest is what it is, and
 	// it could be built into a binary and not applied from disk — two readers for one file. The
 	// failure was `invalid character '/'`, which names the symptom and not the cause.
@@ -346,7 +346,7 @@ func TestADeclarationFromDiskMayBeAnnotated(t *testing.T) {
 	}
 }
 
-func TestSomethingInsideAValueIsNotAComment(t *testing.T) {
+func testSomethingInsideAValueIsNotAComment(t *testing.T) {
 	// Every image reference has a `//` in it somewhere near. Only whole lines are dropped.
 	d, err := ParseFileTrusted([]byte(`{"declaration":1,"resources":[
 		{"id":"f","type":"file","path":"/etc/x","content":"see https://example.invalid/ for why"}]}`))
@@ -370,7 +370,7 @@ func TestSomethingInsideAValueIsNotAComment(t *testing.T) {
 //
 // Not hypothetical: a test harness appended a line to the foundation bundle by accident, every
 // apply kept working, and nothing said so for the entire time it was wrong.
-func TestSomethingAfterTheDeclarationIsRefused(t *testing.T) {
+func testSomethingAfterTheDeclarationIsRefused(t *testing.T) {
 	good := `{"declaration":1,"resources":[{"id":"a","type":"file","path":"/tmp/a",` +
 		`"content":"x","mode":"0644"}]}`
 	if _, err := ParseFileTrusted([]byte(good)); err != nil {
@@ -394,7 +394,7 @@ func TestSomethingAfterTheDeclarationIsRefused(t *testing.T) {
 }
 
 // A name that would read as a reference to something else is refused before it reaches a runtime.
-func TestANetworkNameIsRefusedIfItIsNotOne(t *testing.T) {
+func testANetworkNameIsRefusedIfItIsNotOne(t *testing.T) {
 	for _, name := range []string{"", "mail/private", "host:mail", "a b"} {
 		refusal := refusalFor(t, `{"declaration":1,"resources":[
 		  {"id":"private","type":"network","name":"`+name+`"}
@@ -409,7 +409,7 @@ func TestANetworkNameIsRefusedIfItIsNotOne(t *testing.T) {
 //
 // The alternative is a configuration file containing the literal `${secret:x}`, which the program
 // reads as a value and fails on somewhere with no connection to this.
-func TestAFileAskingForASecretItWasNotGivenIsRefused(t *testing.T) {
+func testAFileAskingForASecretItWasNotGivenIsRefused(t *testing.T) {
 	refusal := refusalFor(t, `{"declaration":1,"resources":[
 	  {"id":"c","type":"file","path":"/tmp/x","content":"token=${secret:absent}"}
 	]}`)
@@ -419,7 +419,7 @@ func TestAFileAskingForASecretItWasNotGivenIsRefused(t *testing.T) {
 }
 
 // And a secret nobody asked for, because somebody believes it is in a file where it is not.
-func TestASecretTheContentNeverUsesIsRefused(t *testing.T) {
+func testASecretTheContentNeverUsesIsRefused(t *testing.T) {
 	refusal := refusalFor(t, `{"declaration":1,"resources":[
 	  {"id":"c","type":"file","path":"/tmp/x","content":"nothing here","secrets":{"spare":"S"}}
 	]}`)
@@ -431,7 +431,7 @@ func TestASecretTheContentNeverUsesIsRefused(t *testing.T) {
 // The runtime's resolver and address flags take only addresses; a name would be refused at
 // create, after the old container was already gone. Refused on arrival instead — and an address
 // without a user-defined network is refused for the same reason.
-func TestAContainersResolverAndAddressAreAddressesOrRefused(t *testing.T) {
+func testAContainersResolverAndAddressAreAddressesOrRefused(t *testing.T) {
 	refused := func(body string) []string {
 		_, err := Parse([]byte(`{"declaration":1,"resources":[` + body + `]}`))
 		if err == nil {
@@ -452,7 +452,7 @@ func TestAContainersResolverAndAddressAreAddressesOrRefused(t *testing.T) {
 	}
 }
 
-func TestAnExplicitlyEmptyDeclarationIsAccepted(t *testing.T) {
+func testAnExplicitlyEmptyDeclarationIsAccepted(t *testing.T) {
 	// A deliberately-empty declaration (novox/hq issue 127) says owns_nothing, and is applied so
 	// the node drops what it last held — distinct from an accidental empty body, which is refused.
 	if _, err := Parse([]byte(`{"declaration":1,"owns_nothing":true,"resources":[]}`)); err != nil {
@@ -467,7 +467,7 @@ func TestAnExplicitlyEmptyDeclarationIsAccepted(t *testing.T) {
 
 // A container's kept networks are names, not its own network, and not for a step (novox/hq ADR
 // 0163, rule 4); and the mesh may say which modules it left out, which a carried bundle may not.
-func TestKeptNetworksAndLeftOutModulesAreReadStrictly(t *testing.T) {
+func testKeptNetworksAndLeftOutModulesAreReadStrictly(t *testing.T) {
 	pinnedImage := "postgres@sha256:" + strings.Repeat("a", 64)
 	d, err := Parse([]byte(`{"declaration":1,"left_out":["web"],"resources":[
 	  {"id":"app","type":"container","name":"app","image":"` + pinnedImage + `","networks":["predecessor_default"]}
@@ -506,7 +506,7 @@ func TestKeptNetworksAndLeftOutModulesAreReadStrictly(t *testing.T) {
 }
 
 // A container may ask for a capability by name, and nothing else (novox/hq ADR 0170).
-func TestACapabilityIsNamedOrRefused(t *testing.T) {
+func testACapabilityIsNamedOrRefused(t *testing.T) {
 	image := "postgres@sha256:" + strings.Repeat("a", 64)
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"fw","type":"container","name":"fw","image":"` + image + `","network":"host","capabilities":["NET_ADMIN","CAP_NET_RAW"]}
@@ -527,7 +527,7 @@ func TestACapabilityIsNamedOrRefused(t *testing.T) {
 
 // A container may send its output to the machine's journal, and nowhere else but the runtime's own
 // file (novox/hq ADR 0179): what reads the machine's logs then reads the container's too.
-func TestAContainerMayLogToTheJournalAndNowhereElse(t *testing.T) {
+func testAContainerMayLogToTheJournalAndNowhereElse(t *testing.T) {
 	image := "postgres@sha256:" + strings.Repeat("a", 64)
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"front","type":"container","name":"front","image":"` + image + `","logging":"journald"}
@@ -548,7 +548,7 @@ func TestAContainerMayLogToTheJournalAndNowhereElse(t *testing.T) {
 
 // Issue 1024, ADR 0422: a directory or archive says how it treats files it did not write.
 
-func TestADirectoryAndAnArchiveSayWhatTheyDoWithUnknownFiles(t *testing.T) {
+func testADirectoryAndAnArchiveSayWhatTheyDoWithUnknownFiles(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"d","type":"directory","path":"/home/a/x","unknown":"move-out","knows":["keep","sub/"]},
 	  {"id":"r","type":"archive","source":"https://x/y","digest":"sha256:` + strings.Repeat("a", 64) + `","path":"/home/a/y","unknown":"module"}
@@ -570,7 +570,7 @@ func TestADirectoryAndAnArchiveSayWhatTheyDoWithUnknownFiles(t *testing.T) {
 	}
 }
 
-func TestBadUnknownAndKnowsFormsAreRefusedNamingTheResource(t *testing.T) {
+func testBadUnknownAndKnowsFormsAreRefusedNamingTheResource(t *testing.T) {
 	digest := `"digest":"sha256:` + strings.Repeat("a", 64) + `"`
 	cases := map[string]string{
 		"bad value":    `{"id":"d","type":"directory","path":"/x","unknown":"delete"}`,
@@ -593,3 +593,36 @@ func TestBadUnknownAndKnowsFormsAreRefusedNamingTheResource(t *testing.T) {
 		})
 	}
 }
+
+// TestDeclaration holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestDeclaration(t *testing.T) {
+	t.Run("AValidDeclarationParsesInOrder", testAValidDeclarationParsesInOrder)
+	t.Run("AnUnknownTypeRefusesTheWholeDeclaration", testAnUnknownTypeRefusesTheWholeDeclaration)
+	t.Run("AnUnknownFieldIsRefused", testAnUnknownFieldIsRefused)
+	t.Run("AFieldTheTypeDoesNotUseIsRefusedNotIgnored", testAFieldTheTypeDoesNotUseIsRefusedNotIgnored)
+	t.Run("AnUnknownVersionIsRefusedWhole", testAnUnknownVersionIsRefusedWhole)
+	t.Run("EveryProblemIsReportedAtOnce", testEveryProblemIsReportedAtOnce)
+	t.Run("IdentityIsRequiredAndUnique", testIdentityIsRequiredAndUnique)
+	t.Run("ModeIsRefusedUnlessItMeansWhatItLooksLike", testModeIsRefusedUnlessItMeansWhatItLooksLike)
+	t.Run("ARefusalSaysNothingWasApplied", testARefusalSaysNothingWasApplied)
+	t.Run("AnEmptyDeclarationIsAMistake", testAnEmptyDeclarationIsAMistake)
+	t.Run("AnActionOverTheLinkIsRefused", testAnActionOverTheLinkIsRefused)
+	t.Run("AnActionWithoutVerifyIsRefused", testAnActionWithoutVerifyIsRefused)
+	t.Run("AnImageMustBePinnedByDigest", testAnImageMustBePinnedByDigest)
+	t.Run("AnImageTheMachineHoldsIsNamedByItsOwnDigest", testAnImageTheMachineHoldsIsNamedByItsOwnDigest)
+	t.Run("AFieldTheNewTypesDoNotUseIsRefused", testAFieldTheNewTypesDoNotUseIsRefused)
+	t.Run("TheVocabularyIsTheTwelveShapesTheMeshNeeds", testTheVocabularyIsTheTwelveShapesTheMeshNeeds)
+	t.Run("ADeclarationFromDiskMayBeAnnotated", testADeclarationFromDiskMayBeAnnotated)
+	t.Run("SomethingInsideAValueIsNotAComment", testSomethingInsideAValueIsNotAComment)
+	t.Run("SomethingAfterTheDeclarationIsRefused", testSomethingAfterTheDeclarationIsRefused)
+	t.Run("ANetworkNameIsRefusedIfItIsNotOne", testANetworkNameIsRefusedIfItIsNotOne)
+	t.Run("AFileAskingForASecretItWasNotGivenIsRefused", testAFileAskingForASecretItWasNotGivenIsRefused)
+	t.Run("ASecretTheContentNeverUsesIsRefused", testASecretTheContentNeverUsesIsRefused)
+	t.Run("AContainersResolverAndAddressAreAddressesOrRefused", testAContainersResolverAndAddressAreAddressesOrRefused)
+	t.Run("AnExplicitlyEmptyDeclarationIsAccepted", testAnExplicitlyEmptyDeclarationIsAccepted)
+	t.Run("KeptNetworksAndLeftOutModulesAreReadStrictly", testKeptNetworksAndLeftOutModulesAreReadStrictly)
+	t.Run("ACapabilityIsNamedOrRefused", testACapabilityIsNamedOrRefused)
+	t.Run("AContainerMayLogToTheJournalAndNowhereElse", testAContainerMayLogToTheJournalAndNowhereElse)
+	t.Run("ADirectoryAndAnArchiveSayWhatTheyDoWithUnknownFiles", testADirectoryAndAnArchiveSayWhatTheyDoWithUnknownFiles)
+	t.Run("BadUnknownAndKnowsFormsAreRefusedNamingTheResource", testBadUnknownAndKnowsFormsAreRefusedNamingTheResource)
+}

go/declaration/filereference_test.go

@@ -15,7 +15,7 @@ func refFile(extra string) string {
 }
 
 // 1694/AC1: a reference round trips, and an invalid one is refused naming the field.
-func TestAFileReferenceRoundTripsAndABadOneNamesItsField(t *testing.T) {
+func testAFileReferenceRoundTripsAndABadOneNamesItsField(t *testing.T) {
 	d, err := Parse([]byte(refFile("")))
 	if err != nil {
 		t.Fatal(err)
@@ -49,7 +49,7 @@ func TestAFileReferenceRoundTripsAndABadOneNamesItsField(t *testing.T) {
 }
 
 // 1694/AC2: a declaration as today's SDK writes it reads unchanged and its bytes carry no new key.
-func TestAnInlineFileIsReadAndWrittenAsBefore(t *testing.T) {
+func testAnInlineFileIsReadAndWrittenAsBefore(t *testing.T) {
 	const in = `{"id":"m.f","type":"file","path":"/e","content":"hello"}`
 	d, err := Parse([]byte(`{"declaration":1,"resources":[` + in + `]}`))
 	if err != nil {
@@ -65,7 +65,7 @@ func TestAnInlineFileIsReadAndWrittenAsBefore(t *testing.T) {
 }
 
 // 1694/AC3: the controller's helper makes a reference of a big file and the engine's check refuses a changed byte.
-func TestABigFileBecomesAReferenceAndAChangedByteFailsTheCheck(t *testing.T) {
+func testABigFileBecomesAReferenceAndAChangedByteFailsTheCheck(t *testing.T) {
 	big := strings.Repeat("x", FileReferenceThreshold+1)
 	f := &File{ID: "m.f", Type: TypeFile, Path: "/e", Content: big}
 	if !f.TravelsByDigest() {
@@ -95,7 +95,7 @@ func TestABigFileBecomesAReferenceAndAChangedByteFailsTheCheck(t *testing.T) {
 }
 
 // 1694/AC4: what stays inline, and bytes files travel decoded.
-func TestWhichFilesTravelByDigest(t *testing.T) {
+func testWhichFilesTravelByDigest(t *testing.T) {
 	small := strings.Repeat("x", FileReferenceThreshold)
 	big := strings.Repeat("x", FileReferenceThreshold+1)
 	for name, f := range map[string]File{
@@ -126,7 +126,7 @@ func TestWhichFilesTravelByDigest(t *testing.T) {
 	}
 }
 
-func TestTheSharedNames(t *testing.T) {
+func testTheSharedNames(t *testing.T) {
 	if FileBucketPrefix != "declaration-files-" || FileReferencesCapability != "file-references" || FileReferenceThreshold != 65536 {
 		t.Fatal("a name changed")
 	}
@@ -136,7 +136,7 @@ func TestTheSharedNames(t *testing.T) {
 }
 
 // 1694/AC6: each node has a bucket of its own, so a grant names it and never needs a `*` (ADR 0486 §2).
-func TestEachNodeHasABucketOfItsOwn(t *testing.T) {
+func testEachNodeHasABucketOfItsOwn(t *testing.T) {
 	for _, n := range []string{"ace", "g14", "novox", "shanks"} {
 		b, err := FileBucketFor(n)
 		if err != nil || b != "declaration-files-"+n {
@@ -156,3 +156,13 @@ func TestEachNodeHasABucketOfItsOwn(t *testing.T) {
 		}
 	}
 }
+
+// TestFilereference holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestFilereference(t *testing.T) {
+	t.Run("AFileReferenceRoundTripsAndABadOneNamesItsField", testAFileReferenceRoundTripsAndABadOneNamesItsField)
+	t.Run("AnInlineFileIsReadAndWrittenAsBefore", testAnInlineFileIsReadAndWrittenAsBefore)
+	t.Run("ABigFileBecomesAReferenceAndAChangedByteFailsTheCheck", testABigFileBecomesAReferenceAndAChangedByteFailsTheCheck)
+	t.Run("WhichFilesTravelByDigest", testWhichFilesTravelByDigest)
+	t.Run("TheSharedNames", testTheSharedNames)
+	t.Run("EachNodeHasABucketOfItsOwn", testEachNodeHasABucketOfItsOwn)
+}

go/declaration/groups_test.go

@@ -9,7 +9,7 @@ import (
 // A container may be given supplementary groups (novox/hq ADR 0480 clause 7, issue 1636): numbers, each above zero.
 
 // 1636/AC1: a declaration with groups decodes, is written back with them, and a declaration without them has none.
-func TestAContainerWithGroupsDecodesAndIsWrittenBack(t *testing.T) {
+func testAContainerWithGroupsDecodesAndIsWrittenBack(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"n8n.server","type":"container","name":"n8n","image":"` + anImage + `","groups":[2000,2001]},
 	  {"id":"n8n.plain","type":"container","name":"plain","image":"` + anImage + `"}]}`))
@@ -34,7 +34,7 @@ func TestAContainerWithGroupsDecodesAndIsWrittenBack(t *testing.T) {
 }
 
 // 1636/AC2: zero, a number below it, one the kernel keeps for "no group" and a number twice are refused, naming why.
-func TestAContainersGroupsAreWholeNumbersAboveZeroAndNotRepeated(t *testing.T) {
+func testAContainersGroupsAreWholeNumbersAboveZeroAndNotRepeated(t *testing.T) {
 	for want, groups := range map[string]string{
 		"never root": `[0]`,
 		"below zero": `[-5]`,
@@ -53,3 +53,9 @@ func TestAContainersGroupsAreWholeNumbersAboveZeroAndNotRepeated(t *testing.T) {
 		t.Error("a group named by text was accepted")
 	}
 }
+
+// TestGroups holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestGroups(t *testing.T) {
+	t.Run("AContainerWithGroupsDecodesAndIsWrittenBack", testAContainerWithGroupsDecodesAndIsWrittenBack)
+	t.Run("AContainersGroupsAreWholeNumbersAboveZeroAndNotRepeated", testAContainersGroupsAreWholeNumbersAboveZeroAndNotRepeated)
+}

go/declaration/identity_test.go

@@ -8,7 +8,7 @@ import (
 const anImage = "docker.io/library/x@sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
 
 // The fields ADR 0325 adds, read as the controller sends them (novox/hq ADR 0325 §2, §3, §5, issue 567).
-func TestIdentitiesUsersAndARunAsAreReadAsSent(t *testing.T) {
+func testIdentitiesUsersAndARunAsAreReadAsSent(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,
 	  "identities":[{"module":"radarr","name":"mesh-radarr","uid":61001,"gid":61001}],
 	  "resources":[
@@ -35,7 +35,7 @@ func TestIdentitiesUsersAndARunAsAreReadAsSent(t *testing.T) {
 
 // What the engine refuses on arrival: a root number, an identity not named for its module, a field it does not
 // know, a user that writes a read access, a variable set twice.
-func TestWhatADeclarationMayNotSayOfAnIdentity(t *testing.T) {
+func testWhatADeclarationMayNotSayOfAnIdentity(t *testing.T) {
 	for want, raw := range map[string]string{
 		"never root": `"identities":[{"module":"m","name":"mesh-m","uid":0,"gid":61001}],"resources":[]`,
 		"named mesh-<module>": `"identities":[{"module":"m","name":"m","uid":61001,"gid":61001}],` +
@@ -59,3 +59,9 @@ func TestWhatADeclarationMayNotSayOfAnIdentity(t *testing.T) {
 		}
 	}
 }
+
+// TestIdentity holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestIdentity(t *testing.T) {
+	t.Run("IdentitiesUsersAndARunAsAreReadAsSent", testIdentitiesUsersAndARunAsAreReadAsSent)
+	t.Run("WhatADeclarationMayNotSayOfAnIdentity", testWhatADeclarationMayNotSayOfAnIdentity)
+}

go/declaration/module_test.go

@@ -4,7 +4,7 @@ import "testing"
 
 // 1132/AC1: a resource says its module, and the declaration says each module's build; a resource that does
 // not say gets today's guess, so an older controller still works.
-func TestAResourceSaysItsModuleAndTheDeclarationItsBuilds(t *testing.T) {
+func testAResourceSaysItsModuleAndTheDeclarationItsBuilds(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,
 		"builds":{"novox.be":"b-9","web":"b-4"},
 		"resources":[
@@ -30,7 +30,7 @@ func TestAResourceSaysItsModuleAndTheDeclarationItsBuilds(t *testing.T) {
 }
 
 // 1132/AC1: the module the declaration gives wins over the guess, even when the id would guess another.
-func TestTheDeclaredModuleWinsOverTheGuess(t *testing.T) {
+func testTheDeclaredModuleWinsOverTheGuess(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 		{"id":"a.b.c","type":"directory","path":"/srv/a","module":"a.b"},
 		{"id":"x.y","type":"directory","path":"/srv/x","module":"other"}]}`))
@@ -43,7 +43,7 @@ func TestTheDeclaredModuleWinsOverTheGuess(t *testing.T) {
 }
 
 // 1132/AC1: every kind accepts the field.
-func TestEveryKindAcceptsAModule(t *testing.T) {
+func testEveryKindAcceptsAModule(t *testing.T) {
 	for _, typ := range []Type{TypeDirectory, TypeFile, TypeUser, TypeNetwork, TypeAccess, TypeArchive, TypeProcess,
 		TypeService, TypeOpening, TypePackage, TypeContainer, TypeAction} {
 		r := newOf(typ)
@@ -58,3 +58,10 @@ func TestEveryKindAcceptsAModule(t *testing.T) {
 		}
 	}
 }
+
+// TestModule holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestModule(t *testing.T) {
+	t.Run("AResourceSaysItsModuleAndTheDeclarationItsBuilds", testAResourceSaysItsModuleAndTheDeclarationItsBuilds)
+	t.Run("TheDeclaredModuleWinsOverTheGuess", testTheDeclaredModuleWinsOverTheGuess)
+	t.Run("EveryKindAcceptsAModule", testEveryKindAcceptsAModule)
+}

go/declaration/order_test.go

@@ -12,7 +12,7 @@ func withOrder(order string) string {
 	return `{"declaration":1,` + order + `"resources":[{"id":"etc","type":"directory","path":"/etc/mesh","mode":"0755"}]}`
 }
 
-func TestADeclarationCarriesItsEpochAndSequence(t *testing.T) {
+func testADeclarationCarriesItsEpochAndSequence(t *testing.T) {
 	d, err := Parse([]byte(withOrder(`"epoch":57,"sequence":3,`)))
 	if err != nil {
 		t.Fatalf("a declaration carrying its order was refused: %v", err)
@@ -27,7 +27,7 @@ func TestADeclarationCarriesItsEpochAndSequence(t *testing.T) {
 	}
 }
 
-func TestAnOrderBelowZeroIsRefused(t *testing.T) {
+func testAnOrderBelowZeroIsRefused(t *testing.T) {
 	for _, order := range []string{`"epoch":-1,`, `"sequence":-4,`} {
 		refusal := refusalFor(t, withOrder(order))
 		if !strings.Contains(refusal.Error(), "below zero") {
@@ -38,7 +38,7 @@ func TestAnOrderBelowZeroIsRefused(t *testing.T) {
 
 // **The assignment generation it was composed from, and whether it is a put-back** (novox/hq issue 234):
 // absent is no claim; below zero is none the mesh assigns; a carried bundle puts nothing back.
-func TestADeclarationCarriesItsGenerationAndWhetherItIsAPutBack(t *testing.T) {
+func testADeclarationCarriesItsGenerationAndWhetherItIsAPutBack(t *testing.T) {
 	d, err := Parse([]byte(withOrder(`"sequence":3,"generation":41,"put_back":true,`)))
 	if err != nil {
 		t.Fatalf("a declaration carrying its generation was refused: %v", err)
@@ -57,3 +57,10 @@ func TestADeclarationCarriesItsGenerationAndWhetherItIsAPutBack(t *testing.T) {
 		t.Errorf("a carried bundle said it was a put-back and was not refused for it: %v", err)
 	}
 }
+
+// TestOrder holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestOrder(t *testing.T) {
+	t.Run("ADeclarationCarriesItsEpochAndSequence", testADeclarationCarriesItsEpochAndSequence)
+	t.Run("AnOrderBelowZeroIsRefused", testAnOrderBelowZeroIsRefused)
+	t.Run("ADeclarationCarriesItsGenerationAndWhetherItIsAPutBack", testADeclarationCarriesItsGenerationAndWhetherItIsAPutBack)
+}

go/declaration/ownership_test.go

@@ -9,7 +9,7 @@ import (
 // — owned, seed or managed — and the declaration names the files the provisioner fills. The words are
 // read and judged here before any controller sends them.
 
-func TestAFileSaysWhoOwnsItAtRuntime(t *testing.T) {
+func testAFileSaysWhoOwnsItAtRuntime(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"o","type":"file","path":"/etc/o","content":"a","owner-at-runtime":"owned"},
 	  {"id":"s","type":"file","path":"/etc/s","content":"a","owner-at-runtime":"seed"},
@@ -31,7 +31,7 @@ func TestAFileSaysWhoOwnsItAtRuntime(t *testing.T) {
 }
 
 // A file that does not say is owned by its old form, so the word means exactly what that form does.
-func TestAFileThatDoesNotSayIsOwnedByItsOldForm(t *testing.T) {
+func testAFileThatDoesNotSayIsOwnedByItsOldForm(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"o","type":"file","path":"/etc/o","content":"a"},
 	  {"id":"s","type":"file","path":"/etc/s","content":"a","create-once":true},
@@ -53,7 +53,7 @@ func TestAFileThatDoesNotSayIsOwnedByItsOldForm(t *testing.T) {
 	}
 }
 
-func TestAnOwnershipThatContradictsTheFileIsRefused(t *testing.T) {
+func testAnOwnershipThatContradictsTheFileIsRefused(t *testing.T) {
 	for name, c := range map[string]struct{ resource, refusal string }{
 		"another word": {`{"id":"f","type":"file","path":"/etc/x","content":"a","owner-at-runtime":"mine"}`,
 			`owner-at-runtime "mine"`},
@@ -78,7 +78,7 @@ func TestAnOwnershipThatContradictsTheFileIsRefused(t *testing.T) {
 	}
 }
 
-func TestTheDeclarationNamesTheFilesTheProvisionerFills(t *testing.T) {
+func testTheDeclarationNamesTheFilesTheProvisionerFills(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"filled_files":["/etc/a","/etc/b"],"resources":[
 	  {"id":"a","type":"file","path":"/etc/a","content":"a","owner-at-runtime":"owned"},
 	  {"id":"b","type":"file","path":"/etc/b","into":"block","content":"b\n","owner-at-runtime":"managed"},
@@ -104,7 +104,7 @@ func TestTheDeclarationNamesTheFilesTheProvisionerFills(t *testing.T) {
 	}
 }
 
-func TestAFilledFileMustBeADeclaredFileThatSaysItsOwner(t *testing.T) {
+func testAFilledFileMustBeADeclaredFileThatSaysItsOwner(t *testing.T) {
 	for name, c := range map[string]struct{ filled, resources, refusal string }{
 		"not declared": {`["/etc/none"]`,
 			`{"id":"a","type":"file","path":"/etc/a","content":"a","owner-at-runtime":"owned"}`,
@@ -128,3 +128,12 @@ func TestAFilledFileMustBeADeclaredFileThatSaysItsOwner(t *testing.T) {
 		}
 	}
 }
+
+// TestOwnership holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestOwnership(t *testing.T) {
+	t.Run("AFileSaysWhoOwnsItAtRuntime", testAFileSaysWhoOwnsItAtRuntime)
+	t.Run("AFileThatDoesNotSayIsOwnedByItsOldForm", testAFileThatDoesNotSayIsOwnedByItsOldForm)
+	t.Run("AnOwnershipThatContradictsTheFileIsRefused", testAnOwnershipThatContradictsTheFileIsRefused)
+	t.Run("TheDeclarationNamesTheFilesTheProvisionerFills", testTheDeclarationNamesTheFilesTheProvisionerFills)
+	t.Run("AFilledFileMustBeADeclaredFileThatSaysItsOwner", testAFilledFileMustBeADeclaredFileThatSaysItsOwner)
+}

go/declaration/process_test.go

@@ -15,7 +15,7 @@ func aProcess() *Process {
 }
 
 // A process is part of the vocabulary, or a declaration carrying one is refused whole.
-func TestAProcessIsSomethingTheHostSpeaks(t *testing.T) {
+func testAProcessIsSomethingTheHostSpeaks(t *testing.T) {
 	var found bool
 	for _, kind := range Vocabulary() {
 		if kind == TypeProcess {
@@ -33,7 +33,7 @@ func TestAProcessIsSomethingTheHostSpeaks(t *testing.T) {
 // **Pinned by digest, like everything else that crosses a network.** A bundle fetched by a
 // reference somebody can repoint is not pinned, and it is the one thing on a machine that would
 // then be running code nobody reviewed.
-func TestAProcesssBundleMustBePinned(t *testing.T) {
+func testAProcesssBundleMustBePinned(t *testing.T) {
 	for _, bad := range []string{"", "latest", "sha256:short", strings.Repeat("a", 64)} {
 		d := aProcess()
 		d.Digest = bad
@@ -45,7 +45,7 @@ func TestAProcesssBundleMustBePinned(t *testing.T) {
 
 // What to run is named, never inferred. Guessing an entrypoint from which files are present makes
 // a process change what it runs when somebody adds a file.
-func TestAProcessMustSayWhatToRun(t *testing.T) {
+func testAProcessMustSayWhatToRun(t *testing.T) {
 	d := aProcess()
 	d.Run = nil
 	if problems := d.validate("a process", false); len(problems) == 0 {
@@ -54,7 +54,7 @@ func TestAProcessMustSayWhatToRun(t *testing.T) {
 }
 
 // Its name becomes a unit name and a path, so a separator in it would write somewhere nobody meant.
-func TestAProcesssNameCannotEscapeItsUnit(t *testing.T) {
+func testAProcesssNameCannotEscapeItsUnit(t *testing.T) {
 	// "." and ".." are one path element each, and the mesh's own bundle directory and its parent:
 	// removing a process named ".." would delete every bundle the mesh has, and more (novox/hq ADR
 	// 0118). A leading dash is an option to the service manager, not a unit.
@@ -68,7 +68,7 @@ func TestAProcesssNameCannotEscapeItsUnit(t *testing.T) {
 }
 
 // And a well-formed one is accepted, or the tests above prove only that everything is refused.
-func TestAWellFormedDaemonIsAccepted(t *testing.T) {
+func testAWellFormedDaemonIsAccepted(t *testing.T) {
 	if problems := aProcess().validate("a process", false); len(problems) != 0 {
 		t.Fatalf("a well-formed daemon was refused: %v", problems)
 	}
@@ -78,7 +78,7 @@ func TestAWellFormedDaemonIsAccepted(t *testing.T) {
 // once does not run on a schedule; something not running between fires cannot be restarted when a
 // file changes. A container's modes carry the same rule, and this is the same rule because it is
 // the same thing hosted differently.
-func TestTheModesAreExclusive(t *testing.T) {
+func testTheModesAreExclusive(t *testing.T) {
 	both := aProcess()
 	both.RunOnce = true
 	both.Schedule = "0 3 * * *"
@@ -110,7 +110,7 @@ func TestTheModesAreExclusive(t *testing.T) {
 
 // A cadence that is not a cadence is refused near its author, rather than by a machine at the far
 // end of a declaration.
-func TestAScheduleMustBeACadence(t *testing.T) {
+func testAScheduleMustBeACadence(t *testing.T) {
 	for _, bad := range []string{"often", "0 3 * *", "99 3 * * *"} {
 		p := aProcess()
 		p.Schedule = bad
@@ -121,7 +121,7 @@ func TestAScheduleMustBeACadence(t *testing.T) {
 }
 
 // And each mode on its own is accepted, or the tests above prove only that everything is refused.
-func TestEachModeOnItsOwnIsAccepted(t *testing.T) {
+func testEachModeOnItsOwnIsAccepted(t *testing.T) {
 	once := aProcess()
 	once.RunOnce = true
 	if problems := once.validate("a process", false); len(problems) != 0 {
@@ -148,7 +148,7 @@ func TestEachModeOnItsOwnIsAccepted(t *testing.T) {
 //
 // So it is refused here, near whoever wrote it, rather than rendered into a unit at the far end of
 // a declaration.
-func TestAnEnvironmentValueCannotCarryALineBreak(t *testing.T) {
+func testAnEnvironmentValueCannotCarryALineBreak(t *testing.T) {
 	for _, bad := range []string{
 		"safe\nExecStart=/usr/bin/whatever",
 		"carriage\rreturn",
@@ -173,10 +173,24 @@ func TestAnEnvironmentValueCannotCarryALineBreak(t *testing.T) {
 
 // And ordinary awkward values are accepted, because escaping is what handles those — refusing them
 // too would make a module unable to hold a generated password.
-func TestOrdinaryAwkwardValuesAreAccepted(t *testing.T) {
+func testOrdinaryAwkwardValuesAreAccepted(t *testing.T) {
 	p := aProcess()
 	p.Env = map[string]string{"PASSWORD": `a%H b"c\d`}
 	if problems := p.validate("a process", false); len(problems) != 0 {
 		t.Fatalf("a password containing the characters passwords contain was refused: %v", problems)
 	}
 }
+
+// TestProcess holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestProcess(t *testing.T) {
+	t.Run("AProcessIsSomethingTheHostSpeaks", testAProcessIsSomethingTheHostSpeaks)
+	t.Run("AProcesssBundleMustBePinned", testAProcesssBundleMustBePinned)
+	t.Run("AProcessMustSayWhatToRun", testAProcessMustSayWhatToRun)
+	t.Run("AProcesssNameCannotEscapeItsUnit", testAProcesssNameCannotEscapeItsUnit)
+	t.Run("AWellFormedDaemonIsAccepted", testAWellFormedDaemonIsAccepted)
+	t.Run("TheModesAreExclusive", testTheModesAreExclusive)
+	t.Run("AScheduleMustBeACadence", testAScheduleMustBeACadence)
+	t.Run("EachModeOnItsOwnIsAccepted", testEachModeOnItsOwnIsAccepted)
+	t.Run("AnEnvironmentValueCannotCarryALineBreak", testAnEnvironmentValueCannotCarryALineBreak)
+	t.Run("OrdinaryAwkwardValuesAreAccepted", testOrdinaryAwkwardValuesAreAccepted)
+}

go/declaration/provisioner_test.go

@@ -8,7 +8,7 @@ import (
 // Defends novox/hq ADR 0349 §4 (issue 668): the declaration names the account the provisioner's client runs as,
 // the only one whose write of a filled file the node-engine accepts. Read here before any controller sends it.
 
-func TestTheDeclarationNamesTheProvisionersAccount(t *testing.T) {
+func testTheDeclarationNamesTheProvisionersAccount(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"provisioner_account":"mesh-node-provisioner","filled_files":["/etc/a"],
 	  "resources":[{"id":"a","type":"file","path":"/etc/a","content":"a","owner-at-runtime":"owned"}]}`))
 	if err != nil {
@@ -26,7 +26,7 @@ func TestTheDeclarationNamesTheProvisionersAccount(t *testing.T) {
 	}
 }
 
-func TestAProvisionersAccountThatIsNoAccountIsRefused(t *testing.T) {
+func testAProvisionersAccountThatIsNoAccountIsRefused(t *testing.T) {
 	for name, account := range map[string]string{"root": "root", "not a name": "a b", "a path": "../x"} {
 		_, err := Parse([]byte(`{"declaration":1,"provisioner_account":"` + account + `",
 		  "resources":[{"id":"a","type":"file","path":"/etc/a","content":"a"}]}`))
@@ -35,3 +35,9 @@ func TestAProvisionersAccountThatIsNoAccountIsRefused(t *testing.T) {
 		}
 	}
 }
+
+// TestProvisioner holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestProvisioner(t *testing.T) {
+	t.Run("TheDeclarationNamesTheProvisionersAccount", testTheDeclarationNamesTheProvisionersAccount)
+	t.Run("AProvisionersAccountThatIsNoAccountIsRefused", testAProvisionersAccountThatIsNoAccountIsRefused)
+}

go/declaration/replaces_test.go

@@ -15,7 +15,7 @@ func replacing(extra string) string {
 	return `{"declaration":1,"resources":[` + strings.Replace(aReplacingProcess, "%s", extra, 1) + `]}`
 }
 
-func TestAProcessMayNameWhatItReplaces(t *testing.T) {
+func testAProcessMayNameWhatItReplaces(t *testing.T) {
 	d, err := Parse([]byte(replacing(`,"replaces":["m.server"]`)))
 	if err != nil {
 		t.Fatalf("a process replacing an undeclared container was refused: %v", err)
@@ -27,7 +27,7 @@ func TestAProcessMayNameWhatItReplaces(t *testing.T) {
 
 // What is replaced is what the declaration no longer says. A resource still declared is applied,
 // and handing it over as well would remove something the same declaration asks to keep.
-func TestAProcessMayNotReplaceSomethingStillDeclared(t *testing.T) {
+func testAProcessMayNotReplaceSomethingStillDeclared(t *testing.T) {
 	raw := `{"declaration":1,"resources":[
 	  {"id":"m.server","type":"directory","path":"/tmp/x"},
 	  ` + strings.Replace(aReplacingProcess, "%s", `,"replaces":["m.server"]`, 1) + `]}`
@@ -36,7 +36,7 @@ func TestAProcessMayNotReplaceSomethingStillDeclared(t *testing.T) {
 	}
 }
 
-func TestOnlyAProcessThatStaysUpReplacesAnything(t *testing.T) {
+func testOnlyAProcessThatStaysUpReplacesAnything(t *testing.T) {
 	for _, mode := range []string{`,"run-once":true`, `,"schedule":"0 3 * * *"`} {
 		if _, err := Parse([]byte(replacing(mode + `,"replaces":["m.server"]`))); err == nil {
 			t.Errorf("a process with %s was allowed to replace something", mode)
@@ -44,7 +44,7 @@ func TestOnlyAProcessThatStaysUpReplacesAnything(t *testing.T) {
 	}
 }
 
-func TestAProcessCannotReplaceItselfOrNothing(t *testing.T) {
+func testAProcessCannotReplaceItselfOrNothing(t *testing.T) {
 	for _, bad := range []string{`,"replaces":["m.controller"]`, `,"replaces":[""]`} {
 		if _, err := Parse([]byte(replacing(bad))); err == nil {
 			t.Errorf("replaces %s was accepted", bad)
@@ -52,7 +52,7 @@ func TestAProcessCannotReplaceItselfOrNothing(t *testing.T) {
 	}
 }
 
-func TestOneThingHasOneReplacement(t *testing.T) {
+func testOneThingHasOneReplacement(t *testing.T) {
 	second := strings.NewReplacer(`"id":"m.controller"`, `"id":"m.other"`, `"name":"m"`, `"name":"other"`).
 		Replace(strings.Replace(aReplacingProcess, "%s", `,"replaces":["m.server"]`, 1))
 	raw := `{"declaration":1,"resources":[` +
@@ -61,3 +61,12 @@ func TestOneThingHasOneReplacement(t *testing.T) {
 		t.Fatal("two processes replacing one resource were accepted")
 	}
 }
+
+// TestReplaces holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestReplaces(t *testing.T) {
+	t.Run("AProcessMayNameWhatItReplaces", testAProcessMayNameWhatItReplaces)
+	t.Run("AProcessMayNotReplaceSomethingStillDeclared", testAProcessMayNotReplaceSomethingStillDeclared)
+	t.Run("OnlyAProcessThatStaysUpReplacesAnything", testOnlyAProcessThatStaysUpReplacesAnything)
+	t.Run("AProcessCannotReplaceItselfOrNothing", testAProcessCannotReplaceItselfOrNothing)
+	t.Run("OneThingHasOneReplacement", testOneThingHasOneReplacement)
+}

go/declaration/schedule_declaration_test.go

@@ -11,7 +11,7 @@ import (
 
 func schedulePinned() string { return "registry.example/runtime@sha256:" + strings.Repeat("a", 64) }
 
-func TestAScheduledContainerCarriesTheCronField(t *testing.T) {
+func testAScheduledContainerCarriesTheCronField(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"sync","type":"container","name":"sync","image":"` + schedulePinned() + `","schedule":"0 3 * * *"}
 	]}`))
@@ -27,7 +27,7 @@ func TestAScheduledContainerCarriesTheCronField(t *testing.T) {
 	}
 }
 
-func TestAMalformedScheduleIsRefused(t *testing.T) {
+func testAMalformedScheduleIsRefused(t *testing.T) {
 	_, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"sync","type":"container","name":"sync","image":"` + schedulePinned() + `","schedule":"every night"}
 	]}`))
@@ -39,7 +39,7 @@ func TestAMalformedScheduleIsRefused(t *testing.T) {
 	}
 }
 
-func TestAContainerCannotBeBothRunOnceAndScheduled(t *testing.T) {
+func testAContainerCannotBeBothRunOnceAndScheduled(t *testing.T) {
 	// A container runs once and gates, or on a cadence, or stays up — never two (novox/hq ADR 0053).
 	_, err := Parse([]byte(`{"declaration":1,"resources":[
 	  {"id":"sync","type":"container","name":"sync","image":"` + schedulePinned() + `","run-once":true,"schedule":"0 3 * * *"}
@@ -51,3 +51,10 @@ func TestAContainerCannotBeBothRunOnceAndScheduled(t *testing.T) {
 		t.Errorf("refused for the wrong reason: %v", err)
 	}
 }
+
+// TestScheduleDeclaration holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestScheduleDeclaration(t *testing.T) {
+	t.Run("AScheduledContainerCarriesTheCronField", testAScheduledContainerCarriesTheCronField)
+	t.Run("AMalformedScheduleIsRefused", testAMalformedScheduleIsRefused)
+	t.Run("AContainerCannotBeBothRunOnceAndScheduled", testAContainerCannotBeBothRunOnceAndScheduled)
+}

go/declaration/userscope_test.go

@@ -7,7 +7,7 @@ import (
 
 // novox/hq ADR 0177: a unit is in the system manager or an account's own; a user-scoped one names
 // the account, a system one may not, and any other word is refused.
-func TestAUserScopedUnitNamesItsAccountAndASystemOneMayNot(t *testing.T) {
+func testAUserScopedUnitNamesItsAccountAndASystemOneMayNot(t *testing.T) {
 	cases := []struct{ scope, user, wants string }{
 		{"user", "ops", ""},
 		{"", "", ""},
@@ -30,7 +30,7 @@ func TestAUserScopedUnitNamesItsAccountAndASystemOneMayNot(t *testing.T) {
 }
 
 // novox/hq ADR 0177: lingering is a field of the account, absent meaning nothing asserted.
-func TestAnAccountMayBeDeclaredToLinger(t *testing.T) {
+func testAnAccountMayBeDeclaredToLinger(t *testing.T) {
 	d, err := Parse([]byte(`{"declaration":1,"resources":[{"id":"m.login","type":"user","name":"ops","linger":true}]}`))
 	if err != nil {
 		t.Fatal(err)
@@ -47,3 +47,9 @@ func TestAnAccountMayBeDeclaredToLinger(t *testing.T) {
 		t.Fatal("an account that said nothing about lingering asserts it")
 	}
 }
+
+// TestUserscope holds this file's cases, each a subtest of its own name (mesh-sdk's test budget: at most 500 unit tests).
+func TestUserscope(t *testing.T) {
+	t.Run("AUserScopedUnitNamesItsAccountAndASystemOneMayNot", testAUserScopedUnitNamesItsAccountAndASystemOneMayNot)
+	t.Run("AnAccountMayBeDeclaredToLinger", testAnAccountMayBeDeclaredToLinger)
+}

go/delivery/builder.go

@@ -4,7 +4,10 @@ import (
 	"encoding/json"
 	"fmt"
 	"reflect"
+	"slices"
 	"strings"
+
+	"git.novox.be/novox/mesh-sdk/go/catalogue"
 )
 
 // The builder's keys (novox/hq ADR 0429 clauses 5 and 16, ADR 0437 clause 5, ADR 0405 clauses 2 and 7, ADR 0453
@@ -72,6 +75,12 @@ func ParseBuilderBuildKey(key string) (module, fingerprint string, err error) {
 //	                    artifact-store://<module>/<artifact>@<digest>        catalogue.Recorded keeps without its address
 //	package             <name>@<version>                                     the version published from the trunk
 //
+// From the registry milestone a done key names the reference its seat answered (novox/hq ADR 0605 §9, design 51 *The
+// done key names the reference the seat answered*): `<seat>/<module>/<artifact>@<digest>`, <seat> the registry seat it
+// came through (oci-artifact-registry for a bundle or an archive, container-image-registry for an image or an upstream
+// copy), and `<name>@<version>` for a package as before. A key written in the older form keeps it; this reads both, and
+// no build is built again for its form (catalogue.InArtifactStore reads both the same way).
+//
 // <artifact> is Name and <digest> is Digest. A reference is empty for a candidate's image or package, which is never
 // pushed or published (ADR 0498 clause 6), and in a key done before R4e; the controller delivers only from a key whose
 // every artifact names one (Referenced, clause 8). A kind left empty (a key written before kinds) is not checked.
@@ -80,6 +89,10 @@ type BuiltArtifact struct {
 	Kind      string `json:"kind,omitempty"`
 	Digest    string `json:"digest"`
 	Reference string `json:"reference,omitempty"`
+	// References are every form this artifact is named in, Reference among them (novox/hq ADR 0618, ADR 0624): a build
+	// keeps each form that a counted node-engine states, away nodes included, and Reference stays the form every one
+	// of them reads. A reader that does not know the field reads Reference alone.
+	References []string `json:"references,omitempty"`
 }
 
 const artifactStore = "artifact-store://"
@@ -90,6 +103,27 @@ func (a BuiltArtifact) referenceProblem() string {
 	if r == "" || a.Kind == "" {
 		return ""
 	}
+	// An upstream copy may be named by the holder's own naming, upstream/<host>/<path>@<digest>, in either form: the
+	// holder names it, not the module that asked for it (catalogue.InUpstream).
+	if path, kept := catalogue.InArtifactStore(r); kept && a.Kind == "upstream" {
+		if _, image, ok := catalogue.InUpstream(path); ok {
+			if _, digest, _ := strings.Cut(image, "@"); digest != a.Digest {
+				return "does not name its digest " + a.Digest
+			}
+			return ""
+		}
+	}
+	if seat, path, ok := catalogue.InRegistrySeat(r); ok {
+		want := catalogue.ContainerImageRegistrySeat
+		if a.Kind == "bundle" || a.Kind == "archive" {
+			want = catalogue.OciArtifactRegistrySeat
+		}
+		module, rest, _ := strings.Cut(path, "/")
+		if a.Kind == "package" || seat != want || module == "" || rest != a.Name+"@"+a.Digest {
+			return "is not " + want + "/<module>/" + a.Name + "@" + a.Digest
+		}
+		return ""
+	}
 	switch a.Kind {
 	case "bundle", "archive":
 		path, ok := strings.CutPrefix(r, artifactStore)
@@ -191,6 +225,10 @@ type BuilderBuild struct {
 	// Imports are, on a done key, the mesh packages the built programs import, as the build module answered them
 	// (BuildAnswer.Imports; novox/hq ADR 0593 §2): the builder carries them onto the build's end (BuildLogEntry.Imports).
 	Imports []string `json:"imports,omitempty"`
+	// Needs are, on a done key only, the reader capabilities (`form:<name>`) the build's reference forms need of a
+	// node-engine, beside the ones its manifest needs (novox/hq ADR 0618 §1). A reader that does not know the field
+	// reads the build as needing none.
+	Needs []string `json:"needs,omitempty"`
 }
 
 func (b BuilderBuild) check() error {
@@ -225,6 +263,22 @@ func (b BuilderBuild) check() error {
 		if p := a.referenceProblem(); p != "" {
 			return fmt.Errorf("delivery: the reference %q of the %s %q %s", a.Reference, a.Kind, a.Name, p)
 		}
+		if len(a.References) > 0 && !slices.Contains(a.References, a.Reference) {
+			return fmt.Errorf("delivery: the references of the %s %q do not name its reference %q", a.Kind, a.Name, a.Reference)
+		}
+		for _, r := range a.References {
+			if p := (BuiltArtifact{Name: a.Name, Kind: a.Kind, Digest: a.Digest, Reference: r}).referenceProblem(); p != "" {
+				return fmt.Errorf("delivery: the reference %q of the %s %q %s", r, a.Kind, a.Name, p)
+			}
+		}
+	}
+	for _, n := range b.Needs {
+		if !strings.HasPrefix(n, "form:") || len(n) == len("form:") {
+			return fmt.Errorf("delivery: the need %q of the build is not form:<name>", n)
+		}
+	}
+	if len(b.Needs) > 0 && b.State != BuildDone {
+		return fmt.Errorf("delivery: a %s build names needs; only a done key does", b.State)
 	}
 	for language, id := range b.Asks {
 		if b.State != BuildBuilding {

go/delivery/builder_reference_test.go

@@ -24,6 +24,14 @@ func TestADoneKeyNamesEachArtifactsReferenceInTheFormOfItsKind(t *testing.T) {
 		artifactOf("lib", "package", d, "@novox/mesh-sdk@0.1.15"),
 		artifactOf("lib", "package", d, "left-pad@1.3.0"),
 		artifactOf("old", "", d, "anything at all"),
+		// The form a registry seat answers (ADR 0605 §9), beside the older one.
+		artifactOf("code", "bundle", d, "oci-artifact-registry/mail/code@"+d),
+		artifactOf("files", "archive", d, "oci-artifact-registry/mail/files@"+d),
+		artifactOf("server", "image", d, "container-image-registry/mail/server@"+d),
+		artifactOf("nats", "upstream", d, "container-image-registry/nats/nats@"+d),
+		// An upstream copy under the holder's own naming, upstream/<host>/<path>, in either form (ADR 0624 §1).
+		artifactOf("app", "upstream", d, "container-image-registry/upstream/quay.io:443/org/app@"+d),
+		artifactOf("app", "upstream", d, "artifact-store://upstream/quay.io:443/org/app@"+d),
 	}
 	for _, a := range good {
 		b := doneBuild()
@@ -43,6 +51,15 @@ func TestADoneKeyNamesEachArtifactsReferenceInTheFormOfItsKind(t *testing.T) {
 		artifactOf("server", "image", d, "artifact-store://mail/server/blobs/"+d),
 		artifactOf("lib", "package", d, "@novox/mesh-sdk"),
 		artifactOf("lib", "package", d, "0.1.15"),
+		artifactOf("code", "bundle", d, "container-image-registry/mail/code@"+d),
+		artifactOf("server", "image", d, "oci-artifact-registry/mail/server@"+d),
+		artifactOf("server", "image", d, "container-image-registry/mail/server@"+other),
+		artifactOf("server", "image", d, "container-image-registry/mail/other@"+d),
+		artifactOf("lib", "package", d, "container-image-registry/mail/lib@"+d),
+		artifactOf("app", "upstream", d, "container-image-registry/upstream/quay.io:443/org/app@"+other),
+		artifactOf("app", "upstream", d, "artifact-store://upstream/quay.io:443/org/app@"+other),
+		artifactOf("app", "upstream", d, "oci-artifact-registry/upstream/quay.io:443/org/app@"+d),
+		artifactOf("server", "image", d, "container-image-registry/upstream/quay.io:443/org/server@"+d),
 	}
 	for _, a := range bad {
 		b := doneBuild()
@@ -94,6 +111,11 @@ func TestOnlyAPushFailureIsBuiltAgainBeforeTheFingerprintChanges(t *testing.T) {
 	if NotStored != "not stored: " || NotPinned != "not pinned: " || VersionTaken != "version taken: " || RefusedKind != "refused kind: " {
 		t.Fatal("a prefix changed its words")
 	}
+	// A Node fetch that finds the lock naming a package version the registry does not hold fails with WaitsFor; the
+	// builder then writes the key queued with Waits, and the error is not one that waits for the fingerprint to change.
+	if WaitsFor != "waits for: " || FailedUntilChanged(WaitsFor+"@novox/mesh-sdk@0.1.15") {
+		t.Fatalf("WaitsFor = %q", WaitsFor)
+	}
 }
 
 // A key whose module's lock names a version of the group's package not yet published waits, queued, saying which
@@ -133,11 +155,3 @@ func TestADoneKeyWithNoArtifactIsReferenced(t *testing.T) {
 		t.Fatalf("Referenced = %v, %v; want true", ok, missing)
 	}
 }
-
-// A Node fetch that finds the lock naming a package version the registry does not hold fails with WaitsFor; the
-// builder then writes the key queued with Waits, and the error is not one that waits for the fingerprint to change.
-func TestWaitsForIsAPrefixThatIsBuiltAgain(t *testing.T) {
-	if WaitsFor != "waits for: " || FailedUntilChanged(WaitsFor+"@novox/mesh-sdk@0.1.15") {
-		t.Fatalf("WaitsFor = %q", WaitsFor)
-	}
-}

go/delivery/builder_test.go

@@ -1,7 +1,9 @@
 package delivery
 
 import (
+	"encoding/json"
 	"errors"
+	"fmt"
 	"reflect"
 	"strings"
 	"testing"
@@ -26,11 +28,15 @@ func doneBuild() BuilderBuild {
 
 func builderSamples() map[string]BuilderBuild {
 	failed := BuilderBuild{State: BuildFailed, By: "builder.novox.1", Step: "test", Error: "go test: 2 failed"}
+	both := doneBuild()
+	both.Needs = []string{"form:artifact-registry"}
+	both.Artifacts[1].References = []string{both.Artifacts[1].Reference, "artifact-store://mail/server@" + both.Artifacts[1].Digest}
 	return map[string]BuilderBuild{
-		"queued":   {State: BuildQueued, Manifest: digestOf('4')},
-		"building": {State: BuildBuilding, By: "builder.novox.1", Step: "fetch", Manifest: digestOf('4')},
-		"done":     doneBuild(),
-		"failed":   failed,
+		"done with needs and both forms": both,
+		"queued":                         {State: BuildQueued, Manifest: digestOf('4')},
+		"building":                       {State: BuildBuilding, By: "builder.novox.1", Step: "fetch", Manifest: digestOf('4')},
+		"done":                           doneBuild(),
+		"failed":                         failed,
 	}
 }
 
@@ -90,10 +96,17 @@ func TestBuilderBuildChecked(t *testing.T) {
 		edit  func(*BuilderBuild)
 		words []string
 	}{
-		"done without a manifest":       {func(b *BuilderBuild) { b.Manifest = "" }, []string{"manifest"}},
-		"a malformed manifest":          {func(b *BuilderBuild) { b.Manifest = "abc" }, []string{"abc"}},
-		"an artifact without a digest":  {func(b *BuilderBuild) { b.Artifacts[1].Digest = "" }, []string{"digest", "server"}},
-		"an artifact without a name":    {func(b *BuilderBuild) { b.Artifacts[0].Name = "" }, []string{"name"}},
+		"done without a manifest":      {func(b *BuilderBuild) { b.Manifest = "" }, []string{"manifest"}},
+		"a malformed manifest":         {func(b *BuilderBuild) { b.Manifest = "abc" }, []string{"abc"}},
+		"an artifact without a digest": {func(b *BuilderBuild) { b.Artifacts[1].Digest = "" }, []string{"digest", "server"}},
+		"an artifact without a name":   {func(b *BuilderBuild) { b.Artifacts[0].Name = "" }, []string{"name"}},
+		"a need that is not a form":    {func(b *BuilderBuild) { b.Needs = []string{"word:x"} }, []string{"word:x", "form:"}},
+		"a reference not among the references": {func(b *BuilderBuild) {
+			b.Artifacts[1].References = []string{"artifact-store://mail/server@" + b.Artifacts[1].Digest}
+		}, []string{"server", "references"}},
+		"a reference of another artifact": {func(b *BuilderBuild) {
+			b.Artifacts[1].References = []string{b.Artifacts[1].Reference, "registry.example/mail/other@" + b.Artifacts[1].Digest}
+		}, []string{"server", "other"}},
 		"an unknown state":              {func(b *BuilderBuild) { b.State = "paused" }, []string{"paused"}},
 		"a toolchain without a version": {func(b *BuilderBuild) { b.Toolchains["go"] = ToolchainUsed{Recipe: "3"} }, []string{"go", "version"}},
 		"a toolchain without a recipe":  {func(b *BuilderBuild) { b.Toolchains["go"] = ToolchainUsed{Version: "1.26.0"} }, []string{"go", "recipe"}},
@@ -119,6 +132,11 @@ func TestBuilderBuildChecked(t *testing.T) {
 	}
 	// a queued or building value may not already carry an outcome
 	q := builderSamples()["queued"]
+	q.Needs = []string{"form:x"}
+	if _, err := EncodeBuilderBuild(q); err == nil {
+		t.Error("a queued build with needs accepted")
+	}
+	q.Needs = nil
 	q.Artifacts = doneBuild().Artifacts
 	if _, err := EncodeBuilderBuild(q); err == nil {
 		t.Error("a queued build with artifacts accepted")
@@ -158,6 +176,21 @@ func TestBuilderBuildVersion(t *testing.T) {
 			t.Errorf("DecodeBuilderBuild(%s) = %v", in, err)
 		}
 	}
+	// A holder's question before it stores (ADR 0605 §4): asked at the builder's address with name, version and digest;
+	// an answer without recorded is an error, never a yes.
+	for answer, want := range map[string]string{`{"recorded":true}`: "true ", `{"recorded":false,"why":"other digest"}`: "false other digest",
+		`{"name":"x"}`: "error", `not json`: "error"} {
+		b := BuilderVersions{Ask: func(addr string, body any) (json.RawMessage, error) {
+			if a := body.(map[string]any); addr != BuilderVersionsAddress || a["name"] != "n" || a["version"] != "0.1.2" || a["digest"] != "sha256:d" {
+				t.Errorf("asked %s %v", addr, body)
+			}
+			return json.RawMessage(answer), nil
+		}}
+		ok, why, err := b.Recorded("n", "0.1.2", "sha256:d")
+		if got := fmt.Sprintf("%v %s", ok, why); err != nil && want != "error" || err == nil && got != want {
+			t.Errorf("answer %s: %s, %v; want %s", answer, got, err, want)
+		}
+	}
 }
 
 // 1358/AC6: the builder's bucket and module do not collide with the controller's build layout (buildrecord.go), which

go/delivery/builder_versions.go

@@ -0,0 +1,38 @@
+package delivery
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// The holder's question before it stores a publish (novox/hq ADR 0605 §4, design 51 *Publishing*): did the builder
+// number this version with this digest? Every registry seat's holder asks it the same way, so the asking lives here
+// once (ADR 0627 §2), beside the builder's layouts; no holder writes it again.
+//
+// The builder answers it today only as its module's tool builder_versions: no seat in the seat set names the builder's
+// role yet. Once one does, BuilderVersionsAddress becomes that seat's verb and nothing else changes for a holder.
+const BuilderVersionsAddress = BuilderModule + ".builder_versions"
+
+// AskFunc is the runtime's request and reply over the bus (mesh-sdk stdio.Ask), given by the holder so this package does
+// not depend on the runtime.
+type AskFunc func(address string, body any) (json.RawMessage, error)
+
+// BuilderVersions asks the builder whether it numbered a version with a digest. It answers the holder's Check:
+// recorded, and why not when it is not.
+type BuilderVersions struct{ Ask AskFunc }
+
+// Recorded asks the builder about name@version with digest. An answer without `recorded` is an error, never a yes.
+func (b BuilderVersions) Recorded(name, version, digest string) (bool, string, error) {
+	raw, err := b.Ask(BuilderVersionsAddress, map[string]any{"name": name, "version": version, "digest": digest})
+	if err != nil {
+		return false, "", err
+	}
+	var a struct {
+		Recorded *bool  `json:"recorded"`
+		Why      string `json:"why"`
+	}
+	if err := json.Unmarshal(raw, &a); err != nil || a.Recorded == nil {
+		return false, "", fmt.Errorf("builder_versions answered no recorded: %s", raw)
+	}
+	return *a.Recorded, a.Why, nil
+}

go/delivery/checker.go

@@ -179,6 +179,20 @@ type Verdict struct {
 	// carried over, by repository (ADR 0548 §5): the verdict was rewritten for Trunk and Beside by running only the packages
 	// whose digest the moves changed. Absent from a verdict judged whole, and from one still running.
 	CarriedFrom map[string]string `json:"carried-from,omitempty"`
+	// Series names each change of an artifact's series the checked heads make against the trunk's manifests (design 32;
+	// the checker's DLV-C4), each once, in the order the check found them; the pull request's mesh/check line says the
+	// same, and a reader that cuts that line still has every one here. Absent when the heads change no series, and in a
+	// value written before it.
+	Series []SeriesChange `json:"series,omitempty"`
+}
+
+// SeriesChange is one change of a series: the module, its artifact (or the package's ecosystem name, as the module's
+// packages name it), the series on trunk and the series the heads give it.
+type SeriesChange struct {
+	Module   string `json:"module"`
+	Artifact string `json:"artifact"`
+	From     string `json:"from"`
+	To       string `json:"to"`
 }
 
 func (c *Composition) check() error {
@@ -243,6 +257,19 @@ func (v Verdict) check() error {
 			return fmt.Errorf("delivery: the verdict's carried-from names the commits it is judged on: nothing moved, so nothing was carried")
 		}
 	}
+	changed := map[string]bool{}
+	for _, c := range v.Series {
+		if c.Module == "" || c.Artifact == "" || c.From == "" || c.To == "" {
+			return fmt.Errorf("delivery: the verdict's series change %+v names no module, artifact, from or to", c)
+		}
+		if c.From == c.To {
+			return fmt.Errorf("delivery: the verdict's series change of %s/%s is from %s to the same series", c.Module, c.Artifact, c.From)
+		}
+		if changed[c.Module+"/"+c.Artifact] {
+			return fmt.Errorf("delivery: the verdict names the series change of %s/%s twice", c.Module, c.Artifact)
+		}
+		changed[c.Module+"/"+c.Artifact] = true
+	}
 	for level, r := range v.Levels {
 		if err := checkLevel(level); err != nil {
 			return err

go/delivery/checker_test.go

@@ -33,8 +33,11 @@ func verdictSamples() map[string]Verdict {
 	carried.Beside = map[string]string{"novox/mesh-catalog": "cccc"}
 	carried.CarriedFrom = map[string]string{"novox/mesh-sdk": "9999", "novox/mesh-control": "bbbb", "novox/mesh-catalog": "cccc"}
 	carried.Composition = &Composition{State: CompositionPass, SDK: carried.SDK, Machines: []string{"ace"}, FPSet: "fps1:00"}
+	series := passVerdict()
+	series.Series = []SeriesChange{{Module: "mesh-sdk", Artifact: "go", From: "0.1", To: "0.2"},
+		{Module: "mesh-contracts", Artifact: "@novox/mesh-contracts", From: "0.1", To: "1.0"}}
 	return map[string]Verdict{"running": running, "pass": passVerdict(), "fail by a test": failTest, "fail by a machine": failMachine,
-		"carried": carried}
+		"carried": carried, "naming its series changes": series}
 }
 
 func keptSample() Kept {
@@ -93,6 +96,11 @@ func TestVerdictRoundTrip(t *testing.T) {
 		}
 	}
 	data, _ := EncodeVerdict(passVerdict())
+	data, _ = EncodeVerdict(verdictSamples()["naming its series changes"])
+	if !strings.Contains(string(data), `"series":[{"module":"mesh-sdk","artifact":"go","from":"0.1","to":"0.2"},`) {
+		t.Errorf("the series changes are not each {module, artifact, from, to}: %s", data)
+	}
+	data, _ = EncodeVerdict(passVerdict())
 	for _, field := range []string{`"queue":1200`, `"clone":800`, `"unit":950`, `"integration-setup":2100`, `"integration-run":7400`, `"composition":3300`, `"run":12`, `"kept":301`, `"machines":["ace","g14","novox","shanks"]`, `"sdk":"v0.1.14`} {
 		if !strings.Contains(string(data), field) {
 			t.Errorf("the value lacks %s: %s", field, data)
@@ -314,6 +322,12 @@ func TestVerdictNewFieldsChecked(t *testing.T) {
 		"carried from an empty commit":  {func(v *Verdict) { v.CarriedFrom = map[string]string{"novox/mesh-sdk": ""} }, []string{"carried-from", "mesh-sdk"}},
 		"carried over no move":          {func(v *Verdict) { v.CarriedFrom = map[string]string{"novox/mesh-sdk": "aaaa"} }, []string{"nothing moved"}},
 		"a running verdict carried":     {func(v *Verdict) { v.State, v.CarriedFrom = VerdictRunning, map[string]string{"novox/mesh-sdk": "9999"} }, []string{"running", "carried"}},
+		// Design 32: each series change whole, once, and a change.
+		"a series change with no from": {func(v *Verdict) { v.Series = []SeriesChange{{Module: "m", Artifact: "go", To: "0.2"}} }, []string{"series", "from"}},
+		"a series change to itself":    {func(v *Verdict) { v.Series = []SeriesChange{{Module: "m", Artifact: "go", From: "0.2", To: "0.2"}} }, []string{"m/go", "same series"}},
+		"a series change named twice": {func(v *Verdict) {
+			v.Series = []SeriesChange{{Module: "m", Artifact: "go", From: "0.1", To: "0.2"}, {Module: "m", Artifact: "go", From: "0.2", To: "0.3"}}
+		}, []string{"m/go", "twice"}},
 	}
 	for name, c := range cases {
 		v := passVerdict()

go/delivery/compose_candidate.go

@@ -1,203 +0,0 @@
-package delivery
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"time"
-)
-
-// A composition that does not exist yet is asked of the node-engine (novox/hq ADR 0593 §7): the seat node-engine's verb
-// compose-candidate, served by each node's engine alone, composes a check's candidate in shadow with the node's own
-// sealed values and the indexer's manifest verdicts, applies and writes nothing, and answers within the asker's bound.
-// The checker asks every placed node in parallel and makes the check's composition verdict from the answers; a node
-// that does not answer within the bound is named "not composed on that node: no answer" and the check passes with that
-// warning (§9). This is the contract only: the composing is the node-engine's own.
-
-const (
-	// EngineComposeCandidateVerb is the verb's name on the seat node-engine (catalogue.EngineSeat).
-	EngineComposeCandidateVerb = "compose-candidate"
-	// ComposeAnswerBound is the default of the checker's setting compose-answer-bound: how long it waits for a node's
-	// answer (ADR 0593 §7, §9).
-	ComposeAnswerBound = 60 * time.Second
-	// ComposeNoAnswer is the words a check's verdict names a node with that did not answer within the bound (ADR 0593 §9).
-	ComposeNoAnswer = "not composed on that node: no answer"
-
-	// ComposeCandidateComposed and ComposeCandidateRefused are an answer's verdict: no module and not the node's own composition is
-	// refused by the candidate, or at least one is (or the node could not compose with it at all, Refused).
-	ComposeCandidateComposed = "composed"
-	ComposeCandidateRefused  = "refused"
-	// ComposeCandidateUnready is the verdict of a node that cannot compose yet (its shadow not ready, its agent
-	// starting): no module is named, Refused says why in words, and the checker takes it as a node that did not answer
-	// (ComposeNoAnswer, ADR 0593 §9), deciding by this verdict and never by the words.
-	ComposeCandidateUnready = "unready"
-	// ComposeCandidateNotJudged is the verdict for a node the checker's sandbox composed and could not judge (an older
-	// node-engine's input that does not say how it composes, novox/hq ADR 0593 §9): no module is named, Refused says why in
-	// words, and the checker names the node with them and passes the check with that warning, never silent and never a
-	// failure of the change. The checker decides by this verdict, never by the words (ADR 0601 §4's kind: a contract is a
-	// field, not a phrase).
-	ComposeCandidateNotJudged = "not-judged"
-
-	// The states of one module's composition with the candidate: composed (Digest set), refused by the candidate
-	// (Words set), or held, refused without the candidate too (Words set), which counts toward no verdict.
-	ModuleComposedState = "composed"
-	ModuleRefusedState  = "refused"
-	ModuleHeldState     = "held"
-)
-
-// ComposeCandidateAsk is the verb's input: Candidate is the key of the indexer's candidate (CompositionKey,
-// `<escaped group>.<heads hash>`); the engine reads that candidate itself and lays its modules over its placement.
-// Input asks the engine to answer too the composition input it composed the candidate from (its own node's scope, the
-// catalogue left out as composer.Request.Input says): the checker puts it into the request a build module's composer
-// runs over, for a group that changes the node-engine's composition code (ADR 0593 §7).
-type ComposeCandidateAsk struct {
-	Candidate string `json:"candidate"`
-	Input     bool   `json:"input,omitempty"`
-}
-
-// ComposeCandidateAnswer is the verb's answer: the node, the candidate, the verdict, every module placed on the node
-// sorted by name, the node's own composition (Own, Module "node"), why the node could not compose with the candidate at
-// all (Refused: Modules is then empty and Verdict refused, or unready when it cannot compose yet), how long the engine took in milliseconds, and, when asked
-// (ComposeCandidateAsk.Input), the composition input it composed from.
-type ComposeCandidateAnswer struct {
-	V         int              `json:"v"`
-	Node      string           `json:"node"`
-	Candidate string           `json:"candidate"`
-	Verdict   string           `json:"verdict"`
-	Modules   []ModuleComposed `json:"modules"`
-	Own       ModuleComposed   `json:"own"`
-	Refused   string           `json:"refused,omitempty"`
-	Took      int64            `json:"took"`
-	Input     json.RawMessage  `json:"input,omitempty"`
-}
-
-// ModuleComposed is one module's composition with the candidate: the fingerprint it was composed at (the candidate's
-// FP2 for a module the candidate touches, else its newest done build as composed-<node> holds it), its state, the
-// composition's digest when composed (ComposedDigestOf), whether the candidate changes it from the one composed without
-// it (the checker's "what the change reaches on this node"), and why, for a refused or held one.
-type ModuleComposed struct {
-	Module  string `json:"module"`
-	FP      string `json:"fp,omitempty"`
-	State   string `json:"state"`
-	Digest  string `json:"digest,omitempty"`
-	Changed bool   `json:"changed,omitempty"`
-	Words   string `json:"words,omitempty"`
-}
-
-func (a ComposeCandidateAsk) check() error {
-	if _, _, err := ParseCompositionKey(a.Candidate); err != nil {
-		return fmt.Errorf("delivery: a compose-candidate ask names no candidate: %w", err)
-	}
-	return nil
-}
-
-func (m ModuleComposed) check(node string) error {
-	if m.Module == "" {
-		return fmt.Errorf("delivery: a module's composition on %s names no module", node)
-	}
-	switch m.State {
-	case ModuleComposedState:
-		if m.Digest == "" {
-			return fmt.Errorf("delivery: %s is composed on %s and names no digest", m.Module, node)
-		}
-	case ModuleRefusedState, ModuleHeldState:
-		if m.Words == "" {
-			return fmt.Errorf("delivery: %s is %s on %s and says no why", m.Module, m.State, node)
-		}
-	default:
-		return fmt.Errorf("delivery: %s on %s is %q, neither %s, %s nor %s", m.Module, node, m.State,
-			ModuleComposedState, ModuleRefusedState, ModuleHeldState)
-	}
-	return nil
-}
-
-func (a ComposeCandidateAnswer) check() error {
-	if err := checkName("node", a.Node); err != nil {
-		return err
-	}
-	if _, _, err := ParseCompositionKey(a.Candidate); err != nil {
-		return err
-	}
-	if a.Took < 0 {
-		return fmt.Errorf("delivery: the answer of %s took %d ms", a.Node, a.Took)
-	}
-	if (a.Verdict == ComposeCandidateUnready || a.Verdict == ComposeCandidateNotJudged) && a.Refused == "" {
-		return fmt.Errorf("delivery: %s's answer is %s and says no why", a.Node, a.Verdict)
-	}
-	if a.Refused != "" {
-		if len(a.Modules) > 0 || a.Verdict != ComposeCandidateRefused && a.Verdict != ComposeCandidateUnready && a.Verdict != ComposeCandidateNotJudged {
-			return fmt.Errorf("delivery: %s could not compose the candidate (%s), and its answer names modules or is neither %s, %s nor %s",
-				a.Node, a.Refused, ComposeCandidateRefused, ComposeCandidateUnready, ComposeCandidateNotJudged)
-		}
-		return nil
-	}
-	refused := false
-	for i, m := range append([]ModuleComposed{a.Own}, a.Modules...) {
-		if err := m.check(a.Node); err != nil {
-			return err
-		}
-		if i > 1 && a.Modules[i-2].Module >= m.Module {
-			return fmt.Errorf("delivery: the modules of %s's answer are not sorted and each once (%s after %s)", a.Node, m.Module, a.Modules[i-2].Module)
-		}
-		refused = refused || m.State == ModuleRefusedState
-	}
-	switch {
-	case a.Own.Module != nodeWord:
-		return fmt.Errorf("delivery: the node's own composition in %s's answer is named %q, not %q", a.Node, a.Own.Module, nodeWord)
-	case refused && a.Verdict != ComposeCandidateRefused:
-		return fmt.Errorf("delivery: %s's answer refuses a module and its verdict is %q", a.Node, a.Verdict)
-	case !refused && a.Verdict != ComposeCandidateComposed:
-		return fmt.Errorf("delivery: %s's answer refuses no module and its verdict is %q", a.Node, a.Verdict)
-	}
-	return nil
-}
-
-// strictDecode reads data into v, refusing an unknown key.
-func strictDecode(data []byte, v any, what string) error {
-	d := json.NewDecoder(bytes.NewReader(data))
-	d.DisallowUnknownFields()
-	if err := d.Decode(v); err != nil {
-		return fmt.Errorf("delivery: %s does not fit its shape: %w", what, err)
-	}
-	return nil
-}
-
-// EncodeComposeCandidateAsk is a as JSON; it refuses an ask naming no candidate key.
-func EncodeComposeCandidateAsk(a ComposeCandidateAsk) ([]byte, error) {
-	if err := a.check(); err != nil {
-		return nil, err
-	}
-	return json.Marshal(a)
-}
-
-// DecodeComposeCandidateAsk reads an ask strictly; it refuses an unknown key and what EncodeComposeCandidateAsk refuses.
-func DecodeComposeCandidateAsk(data []byte) (ComposeCandidateAsk, error) {
-	var a ComposeCandidateAsk
-	if err := strictDecode(data, &a, "a compose-candidate ask"); err != nil {
-		return ComposeCandidateAsk{}, err
-	}
-	return a, a.check()
-}
-
-// EncodeComposeCandidateAnswer is a as JSON at Version; it refuses an unknown state, a composed module without a digest,
-// a refused or held one without words, a refusal of the whole naming modules, and a verdict the modules do not give.
-func EncodeComposeCandidateAnswer(a ComposeCandidateAnswer) ([]byte, error) {
-	if err := a.check(); err != nil {
-		return nil, err
-	}
-	a.V = Version
-	return json.Marshal(a)
-}
-
-// DecodeComposeCandidateAnswer reads an answer strictly; it refuses an unknown version (ErrUnknownVersion), an unknown
-// key and what EncodeComposeCandidateAnswer refuses.
-func DecodeComposeCandidateAnswer(data []byte) (ComposeCandidateAnswer, error) {
-	if err := checkVersion(data); err != nil {
-		return ComposeCandidateAnswer{}, err
-	}
-	var a ComposeCandidateAnswer
-	if err := strictDecode(data, &a, "a compose-candidate answer"); err != nil {
-		return ComposeCandidateAnswer{}, err
-	}
-	return a, a.check()
-}

go/delivery/compose_candidate_test.go

@@ -1,161 +0,0 @@
-package delivery
-
-import (
-	"encoding/json"
-	"strings"
-	"testing"
-
-	"git.novox.be/novox/mesh-sdk/go/catalogue"
-)
-
-// The verb compose-candidate's ask and answer, and a composition that carries its plan or its refusal (ADR 0593 §6, §7):
-// each round-trips, and a reader refuses what it could not take, naming it.
-func TestComposeCandidateAndComposedPlanRoundTripAndRefuse(t *testing.T) {
-	key, err := CompositionKey("mesh-sdk#7", "0123456789ab")
-	if err != nil {
-		t.Fatal(err)
-	}
-	raw, err := EncodeComposeCandidateAsk(ComposeCandidateAsk{Candidate: key, Input: true})
-	if err != nil {
-		t.Fatal(err)
-	}
-	if a, err := DecodeComposeCandidateAsk(raw); err != nil || a.Candidate != key || !a.Input {
-		t.Fatalf("ask round trip: %v, %+v", err, a)
-	}
-	if _, err := DecodeComposeCandidateAsk([]byte(`{"candidate":"` + key + `","other":1}`)); err == nil {
-		t.Error("an ask with an unknown key was read")
-	}
-	if _, err := EncodeComposeCandidateAsk(ComposeCandidateAsk{Candidate: "nope"}); err == nil {
-		t.Error("an ask naming no candidate key was encoded")
-	}
-
-	good := ComposeCandidateAnswer{Node: "ace", Candidate: key, Verdict: ComposeCandidateRefused, Took: 812,
-		Own: ModuleComposed{Module: "node", State: ModuleComposedState, Digest: "sha256:00"},
-		Modules: []ModuleComposed{
-			{Module: "netcheck", FP: "src2:x", State: ModuleComposedState, Digest: "sha256:01", Changed: true},
-			{Module: "route-proxy", State: ModuleRefusedState, Words: "the setting domain has no value"},
-			{Module: "zz", State: ModuleHeldState, Words: "held before"},
-		}, Input: json.RawMessage(`{"machines":["ace"]}`)}
-	raw, err = EncodeComposeCandidateAnswer(good)
-	if err != nil {
-		t.Fatal(err)
-	}
-	back, err := DecodeComposeCandidateAnswer(raw)
-	if err != nil || back.Verdict != ComposeCandidateRefused || len(back.Modules) != 3 || string(back.Input) != string(good.Input) {
-		t.Fatalf("answer round trip: %v, %+v", err, back)
-	}
-	for name, mutate := range map[string]func(a *ComposeCandidateAnswer){
-		"verdict not the modules'": func(a *ComposeCandidateAnswer) { a.Verdict = ComposeCandidateComposed },
-		"unknown state":            func(a *ComposeCandidateAnswer) { a.Modules[0].State = "fine" },
-		"composed without digest":  func(a *ComposeCandidateAnswer) { a.Modules[0].Digest = "" },
-		"refused without words":    func(a *ComposeCandidateAnswer) { a.Modules[1].Words = "" },
-		"unsorted":                 func(a *ComposeCandidateAnswer) { a.Modules[0], a.Modules[1] = a.Modules[1], a.Modules[0] },
-		"own misnamed":             func(a *ComposeCandidateAnswer) { a.Own.Module = "ace" },
-		"whole refusal w/ modules": func(a *ComposeCandidateAnswer) { a.Refused = "the bound passed" },
-	} {
-		a := good
-		a.Modules = append([]ModuleComposed(nil), good.Modules...)
-		mutate(&a)
-		if _, err := EncodeComposeCandidateAnswer(a); err == nil {
-			t.Errorf("%s: encoded", name)
-		}
-	}
-	whole := ComposeCandidateAnswer{Node: "ace", Candidate: key, Verdict: ComposeCandidateRefused, Refused: "the bound passed"}
-	if _, err := EncodeComposeCandidateAnswer(whole); err != nil {
-		t.Errorf("a whole refusal was not encoded: %v", err)
-	}
-	unready := ComposeCandidateAnswer{Node: "ace", Candidate: key, Verdict: ComposeCandidateUnready, Refused: "the agent is starting"}
-	if raw, err := EncodeComposeCandidateAnswer(unready); err != nil {
-		t.Errorf("an unready answer was not encoded: %v", err)
-	} else if back, err := DecodeComposeCandidateAnswer(raw); err != nil || back.Verdict != ComposeCandidateUnready {
-		t.Errorf("an unready answer read back as %+v, %v", back, err)
-	}
-	unready.Refused = ""
-	if _, err := EncodeComposeCandidateAnswer(unready); err == nil {
-		t.Error("an unready answer saying no why was encoded")
-	}
-	unready.Refused, unready.Modules = "starting", good.Modules
-	if _, err := EncodeComposeCandidateAnswer(unready); err == nil {
-		t.Error("an unready answer naming modules was encoded")
-	}
-	// A node the sandbox did not judge: its own verdict, with words and no module (ADR 0593 §9, ADR 0601 §4).
-	notJudged := ComposeCandidateAnswer{Node: "ace", Candidate: key, Verdict: ComposeCandidateNotJudged, Refused: "its node-engine sends no running state"}
-	if raw, err := EncodeComposeCandidateAnswer(notJudged); err != nil {
-		t.Errorf("a not-judged answer was not encoded: %v", err)
-	} else if back, err := DecodeComposeCandidateAnswer(raw); err != nil || back.Verdict != ComposeCandidateNotJudged {
-		t.Errorf("a not-judged answer read back as %+v, %v", back, err)
-	}
-	for name, mutate := range map[string]func(*ComposeCandidateAnswer){
-		"no why":      func(a *ComposeCandidateAnswer) { a.Refused = "" },
-		"modules too": func(a *ComposeCandidateAnswer) { a.Modules = good.Modules },
-	} {
-		a := notJudged
-		mutate(&a)
-		if _, err := EncodeComposeCandidateAnswer(a); err == nil {
-			t.Errorf("a not-judged answer with %s was encoded", name)
-		}
-	}
-	if _, err := DecodeComposeCandidateAnswer([]byte(strings.Replace(string(raw), `"took"`, `"other":1,"took"`, 1))); err == nil {
-		t.Error("an answer with an unknown key was read")
-	}
-
-	fp := "src2:" + strings.Repeat("a", 64)
-	planned := Composed{Node: "ace", Module: "netcheck", FP: fp, Resources: []json.RawMessage{},
-		Plan: &catalogue.Plan{Files: []catalogue.PlanFile{}}}
-	raw, err = EncodeComposed(planned)
-	if err != nil {
-		t.Fatal(err)
-	}
-	c, err := DecodeComposed(raw)
-	if err != nil || c.Plan == nil {
-		t.Fatalf("a composition's plan did not round-trip: %v, %+v", err, c)
-	}
-	d1, _ := ComposedDigestOf(planned)
-	d0, _ := ComposedDigestOf(Composed{Node: "ace", Module: "netcheck", FP: fp, Resources: []json.RawMessage{}})
-	if d1 == "" || d1 != d0 {
-		t.Error("the digest moves with the plan: it is the resources' alone")
-	}
-	if SameComposed(planned, Composed{Node: "ace", Module: "netcheck", FP: fp, Resources: []json.RawMessage{}}) {
-		t.Error("a plan change is not a new composition value")
-	}
-	signed := strings.Replace(string(raw), `"resources"`, `"signature":{"signer":"x","sig":"y"},"resources"`, 1)
-	if c, err := DecodeComposed([]byte(signed)); err != nil || c.Node != "ace" {
-		t.Fatalf("a composition the ended controller signed does not decode: %v", err)
-	}
-	if strings.Contains(string(raw), "signature") {
-		t.Error("a composition is written with a signature")
-	}
-	refused := Composed{Node: "ace", Module: "netcheck", FP: fp, Refused: "the setting domain has no value"}
-	if raw, err = EncodeComposed(refused); err != nil {
-		t.Fatal(err)
-	}
-	if c, err := DecodeComposed(raw); err != nil || c.Refused != refused.Refused {
-		t.Fatalf("a refused composition did not round-trip: %v", err)
-	}
-	if _, err := ComposedDigestOf(refused); err == nil {
-		t.Error("a refused composition has a digest")
-	}
-	refused.Data = true
-	if _, err := EncodeComposed(refused); err == nil {
-		t.Error("a refused composition holding data was encoded")
-	}
-	if _, err := EncodeComposed(Composed{Node: "ace", Resources: []json.RawMessage{}, Refused: "x"}); err == nil {
-		t.Error("the node's own composition carried a refusal")
-	}
-}
-
-// A kept import form is set only with imports, and in the fingerprint's form (ADR 0593 §4).
-func TestAKeptImportFormNeedsImports(t *testing.T) {
-	form := SourcePrefix2 + strings.Repeat("b", 64)
-	in := KeptInputs2{Tree: "t", Imports: []string{"git.novox.be/novox/mesh-sdk/go"}, ImportForm: form}
-	m := Module{FP2: form, Manifest: strings.Repeat("c", 64), Inputs2: &in, Repository: "novox/x", Commit: "c"}
-	if err := m.check(); err != nil && strings.Contains(err.Error(), "import form") {
-		t.Fatalf("a good import form refused: %v", err)
-	}
-	for _, bad := range []KeptInputs2{{Tree: "t", ImportForm: form}, {Tree: "t", Imports: in.Imports, ImportForm: "src2:short"}} {
-		m.Inputs2 = &bad
-		if err := m.check(); err == nil || !strings.Contains(err.Error(), "import form") {
-			t.Errorf("%+v: %v", bad, err)
-		}
-	}
-}

go/delivery/composed_plan_test.go

@@ -0,0 +1,74 @@
+package delivery
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"git.novox.be/novox/mesh-sdk/go/catalogue"
+)
+
+// A composition that carries its plan or its refusal (ADR 0593 §6): each round-trips, and a reader refuses what it could
+// not take, naming it. (compose-candidate's ask and answer are node-engine's client's, mesh-contracts
+// go/clients/nodeengineclient, ADR 0627 §1.)
+func TestComposeCandidateAndComposedPlanRoundTripAndRefuse(t *testing.T) {
+	fp := "src2:" + strings.Repeat("a", 64)
+	planned := Composed{Node: "ace", Module: "netcheck", FP: fp, Resources: []json.RawMessage{},
+		Plan: &catalogue.Plan{Files: []catalogue.PlanFile{}}}
+	raw, err := EncodeComposed(planned)
+	if err != nil {
+		t.Fatal(err)
+	}
+	c, err := DecodeComposed(raw)
+	if err != nil || c.Plan == nil {
+		t.Fatalf("a composition's plan did not round-trip: %v, %+v", err, c)
+	}
+	d1, _ := ComposedDigestOf(planned)
+	d0, _ := ComposedDigestOf(Composed{Node: "ace", Module: "netcheck", FP: fp, Resources: []json.RawMessage{}})
+	if d1 == "" || d1 != d0 {
+		t.Error("the digest moves with the plan: it is the resources' alone")
+	}
+	if SameComposed(planned, Composed{Node: "ace", Module: "netcheck", FP: fp, Resources: []json.RawMessage{}}) {
+		t.Error("a plan change is not a new composition value")
+	}
+	signed := strings.Replace(string(raw), `"resources"`, `"signature":{"signer":"x","sig":"y"},"resources"`, 1)
+	if c, err := DecodeComposed([]byte(signed)); err != nil || c.Node != "ace" {
+		t.Fatalf("a composition the ended controller signed does not decode: %v", err)
+	}
+	if strings.Contains(string(raw), "signature") {
+		t.Error("a composition is written with a signature")
+	}
+	refused := Composed{Node: "ace", Module: "netcheck", FP: fp, Refused: "the setting domain has no value"}
+	if raw, err = EncodeComposed(refused); err != nil {
+		t.Fatal(err)
+	}
+	if c, err := DecodeComposed(raw); err != nil || c.Refused != refused.Refused {
+		t.Fatalf("a refused composition did not round-trip: %v", err)
+	}
+	if _, err := ComposedDigestOf(refused); err == nil {
+		t.Error("a refused composition has a digest")
+	}
+	refused.Data = true
+	if _, err := EncodeComposed(refused); err == nil {
+		t.Error("a refused composition holding data was encoded")
+	}
+	if _, err := EncodeComposed(Composed{Node: "ace", Resources: []json.RawMessage{}, Refused: "x"}); err == nil {
+		t.Error("the node's own composition carried a refusal")
+	}
+}
+
+// A kept import form is set only with imports, and in the fingerprint's form (ADR 0593 §4).
+func TestAKeptImportFormNeedsImports(t *testing.T) {
+	form := SourcePrefix2 + strings.Repeat("b", 64)
+	in := KeptInputs2{Tree: "t", Imports: []string{"git.novox.be/novox/mesh-sdk/go"}, ImportForm: form}
+	m := Module{FP2: form, Manifest: strings.Repeat("c", 64), Inputs2: &in, Repository: "novox/x", Commit: "c"}
+	if err := m.check(); err != nil && strings.Contains(err.Error(), "import form") {
+		t.Fatalf("a good import form refused: %v", err)
+	}
+	for _, bad := range []KeptInputs2{{Tree: "t", ImportForm: form}, {Tree: "t", Imports: in.Imports, ImportForm: "src2:short"}} {
+		m.Inputs2 = &bad
+		if err := m.check(); err == nil || !strings.Contains(err.Error(), "import form") {
+			t.Errorf("%+v: %v", bad, err)
+		}
+	}
+}

go/delivery/delivery.go

@@ -369,6 +369,31 @@ type Have struct {
 	// slot that holds it, so a provider and a consumer of one value on one node each keep their own. Written in Sealed's
 	// place by a node-engine that knows it; Sealed is read only from a have written before.
 	SealedAt Seals `json:"sealed-at,omitempty"`
+	// PullWait is, on a failed have, the pull from a store its apply failed on and waits on that store's holder to settle
+	// for (design 51 *What a pull meets in the swap*, issue 1966 ENG-9): nil on every other have, and on a failure that
+	// waits on no holder.
+	PullWait *PullWait `json:"pull-wait,omitempty"`
+}
+
+// PullWait is the pull a failed apply met from a store: the image, the seat it came through and that seat's holder, whose
+// settled the apply is tried again on, when the pull began, and when the apply was last tried again with what triggered
+// it, in words (empty while it has not been).
+type PullWait struct {
+	Image     string    `json:"image"`
+	Seat      string    `json:"seat,omitempty"`
+	Holder    string    `json:"holder"`
+	Began     time.Time `json:"began"`
+	Retried   string    `json:"retried,omitempty"`
+	RetriedAt time.Time `json:"retried-at,omitzero"`
+}
+
+// samePullWait says whether two pull waits are the same, their times compared as instants.
+func samePullWait(a, b *PullWait) bool {
+	if a == nil || b == nil {
+		return a == b
+	}
+	return a.Image == b.Image && a.Seat == b.Seat && a.Holder == b.Holder && a.Began.Equal(b.Began) &&
+		a.Retried == b.Retried && a.RetriedAt.Equal(b.RetriedAt)
 }
 
 // UserListWritten is the bus's user list as the node-engine of the bus node wrote it to the bus module's file, applied
@@ -488,6 +513,9 @@ func (h Have) check() error {
 		if h.Judgement != "" || h.Waits != "" || h.BuildAlone {
 			return fmt.Errorf("delivery: only a have waiting for a yes names a judgement, the composition waiting and whether it changes the build alone")
 		}
+		if h.PullWait != nil && h.Phase != PhaseFailed {
+			return fmt.Errorf("delivery: only a failed have names the pull it waits on, not one %s", h.Phase)
+		}
 	case PhaseWaitingYes:
 		if h.Judgement != JudgedRecreates && h.Judgement != JudgedMovesData && h.Judgement != JudgedCannot {
 			return fmt.Errorf("delivery: a have waiting for a yes names the judgement %q, not recreates, moves-data or cannot-judge", h.Judgement)
@@ -498,6 +526,9 @@ func (h Have) check() error {
 	default:
 		return fmt.Errorf("delivery: phase %q is not backing-up, applying, checking, running, failed, removed, held or waiting-yes", h.Phase)
 	}
+	if w := h.PullWait; w != nil && (w.Image == "" || w.Holder == "") {
+		return fmt.Errorf("delivery: a have's pull wait names no image or no holder")
+	}
 	if h.Composed != "" {
 		if err := checkDigest(h.Composed, "the have's composition digest"); err != nil {
 			return err
@@ -601,6 +632,10 @@ func DecodePulse(data []byte) (Pulse, error) {
 func SameHave(a, b Have) bool {
 	ua, ub := a.UserList, b.UserList
 	a.UserList, b.UserList = nil, nil
+	if !samePullWait(a.PullWait, b.PullWait) {
+		return false
+	}
+	a.PullWait, b.PullWait = nil, nil
 	if !slices.Equal(a.Sealed, b.Sealed) || !maps.Equal(a.SealedAt, b.SealedAt) {
 		return false
 	}

go/delivery/delivery_test.go

@@ -452,6 +452,35 @@ func TestSame(t *testing.T) {
 	} else if back, err := DecodeHave(raw); err != nil || !SameHave(back, sa) {
 		t.Errorf("sealed values do not travel: %+v, %v", back, err)
 	}
+	// A failed have carries the pull it waits on, compared by what it says (issue 1966 ENG-9); only a failed one does.
+	began := time.Date(2026, 11, 4, 14, 0, 0, 0, time.UTC)
+	pa, pb := a, a
+	pa.Phase, pb.Phase = PhaseFailed, PhaseFailed
+	pa.PullWait = &PullWait{Image: "reg/x@sha256:1", Seat: "container-image-registry", Holder: "distribution", Began: began,
+		Retried: "distribution settled", RetriedAt: began.Add(time.Minute)}
+	w := *pa.PullWait
+	w.Began, w.RetriedAt = began.In(time.Local), w.RetriedAt.In(time.Local)
+	pb.PullWait = &w
+	if !SameHave(pa, pb) || SameHave(pa, Have{V: 1, Build: "b", Phase: PhaseFailed, Health: HealthOK}) {
+		t.Error("equal pull waits differ, or one said and one not are the same")
+	}
+	if raw, err := EncodeHave(pa); err != nil {
+		t.Error(err)
+	} else if back, err := DecodeHave(raw); err != nil || !SameHave(back, pa) {
+		t.Errorf("a pull wait does not travel: %+v, %v", back, err)
+	}
+	pb.PullWait = &PullWait{Image: "reg/x@sha256:1", Holder: "distribution", Began: began}
+	if SameHave(pa, pb) {
+		t.Error("pull waits retried and not are the same")
+	}
+	for name, h := range map[string]Have{
+		"on a running have": {Phase: PhaseRunning, Health: HealthOK, PullWait: pa.PullWait},
+		"naming no holder":  {Phase: PhaseFailed, Health: HealthOK, PullWait: &PullWait{Image: "reg/x@sha256:1"}},
+	} {
+		if _, err := EncodeHave(h); err == nil {
+			t.Errorf("a pull wait %s was encoded", name)
+		}
+	}
 	// The user list is compared by what it says, never by where it is held (ADR 0547 §8).
 	at := time.Date(2026, 10, 25, 21, 0, 0, 0, time.UTC)
 	ua, ub := a, a

go/delivery/enrolment.go

@@ -303,30 +303,6 @@ func (a RedeemAnswer) SignedBytes() []byte {
 	return raw
 }
 
-// **The vault's enrolment verbs** (ADR 0561 §5, ADR 0587 §3, §5), asked by mesh-enrolment alone.
-const (
-	EnrolmentTokenVerb = "enrolment-token"
-	NodeAccountVerb    = "node-account"
-)
-
-// EnrolmentTokenAnswer is what enrolment-token answers: what the joining machine must trust (the bus's address, its
-// certificate's fingerprint, the vault's public signing key in base64), never the token; Sealed holds the token sealed
-// to the operator key when asked with sealed, relayed by tokens as it is; Dropped says a drop left neither the token
-// nor its hash.
-type EnrolmentTokenAnswer struct {
-	Node        string `json:"node"`
-	Broker      string `json:"broker,omitempty"`
-	Fingerprint string `json:"fingerprint,omitempty"`
-	Signer      string `json:"signer,omitempty"`
-	Sealed      string `json:"sealed,omitempty"`
-	Dropped     bool   `json:"dropped,omitempty"`
-}
-
-// NodeAccountAnswer is what node-account answers: the login minted, the account sealed to the sealing key the node
-// presented (base64), never in the clear; Retired says a retire left no account.
-type NodeAccountAnswer struct {
-	Node    string `json:"node"`
-	Login   string `json:"login,omitempty"`
-	Account string `json:"account,omitempty"`
-	Retired bool   `json:"retired,omitempty"`
-}
+// The vault's enrolment verbs (ADR 0561 §5, ADR 0587 §3, §5), asked by mesh-enrolment alone, and their answers are the
+// vault's contract's (mesh-contracts meshvault: VerbEnrolmentToken, EnrolmentTokenAnswer, VerbNodeAccount,
+// NodeAccountAnswer; novox/hq ADR 0627 §1).

go/delivery/forge_inputs_test.go

@@ -69,6 +69,11 @@ func TestForgeMergedRefusesBadInputs(t *testing.T) {
 		// ADR 0565 §2 (issue 1953 D1): the predefined list is one JSON object, said present or absent, never both.
 		"predefined not an object": {func(f *Forge) { f.Predefined = []byte(`["domain"]`) }, "one JSON object"},
 		"predefined both":          {func(f *Forge) { f.Predefined = []byte(`{}`); f.PredefinedRead = true }, "says the merge holds none"},
+		// A deleted branch names its branch and carries nothing else (design 51 *Tagged versions*).
+		"branch-deleted with no branch": {func(f *Forge) { *f = Forge{Kind: ForgeBranchDeleted, Repository: "novox/mesh-sdk"} }, "needs the branch"},
+		"branch-deleted with a head": {func(f *Forge) {
+			*f = Forge{Kind: ForgeBranchDeleted, Repository: "novox/mesh-sdk", Branch: "feat/x", Head: "aaaa"}
+		}, "carries nothing else"},
 	} {
 		f := mergedWithInputs()
 		tc.mut(&f)

go/delivery/gate.go

@@ -1,6 +1,7 @@
 package delivery
 
 import (
+	"bytes"
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
@@ -10,8 +11,6 @@ import (
 	"sort"
 	"strconv"
 	"strings"
-
-	"git.novox.be/novox/mesh-sdk/go/asks"
 )
 
 // The gate's buckets and the teller's (ADR 0437 §6, §8). The gate writes merges (each pull request's expected
@@ -131,7 +130,7 @@ func ParseAskKey(key string) (kind, group, hash string, err error) {
 // AnswerKey is the key, in AnswersBucket, of the teller's answer to the ask at askKey: the same string.
 func AnswerKey(askKey string) string { return askKey }
 
-// AskID is the id the teller gives the router for the ask at askKey. The router's ids refuse dots (asks.UsableID),
+// AskID is the id the teller gives the router for the ask at askKey. The router's ids refuse dots (its usable id),
 // so in the readable part a dot becomes `-` and any other byte outside letters, digits, `_` and `-` becomes `_`; that part is cut to fit, and every id ends in `-` and
 // the first 12 hex digits of the sha256 of the whole key, so two keys never give one id. It cannot be read back:
 // the teller keeps the key beside it.
@@ -329,12 +328,15 @@ func (m Merge) check() error {
 }
 
 // Ask is the value of an asks key: the router's ask whole as the gate composes it, so the teller publishes it
-// unchanged, and the group and heads it was composed for.
+// unchanged, and the group and heads it was composed for. The ask is the operator-channel seat's (mesh-contracts
+// operatorchannel.Ask), carried here as its JSON: mesh-sdk names no seat defined whole (novox/hq ADR 0627 §4), so its
+// id (AskingID of its key and asking), its options and its digest are checked by the gate and the teller through
+// operator-channel's client.
 type Ask struct {
-	V     int      `json:"v"`
-	Group string   `json:"group"`
-	Heads []Head   `json:"heads"`
-	Ask   asks.Ask `json:"ask"`
+	V     int             `json:"v"`
+	Group string          `json:"group"`
+	Heads []Head          `json:"heads"`
+	Ask   json.RawMessage `json:"ask"`
 	// Asking counts the times the gate wrote this group's ask at these heads: 0 or 1 for the first, n for the n-th.
 	// The router drops an ask whose id it has already kept as a redelivery, so each asking has its own id
 	// (AskingID); the first asking's id is unchanged and the field is omitted for it.
@@ -345,15 +347,18 @@ func (a Ask) check() error {
 	if a.Asking < 0 {
 		return fmt.Errorf("delivery: the ask's asking %d is negative", a.Asking)
 	}
-	key, err := MergeAskKey(a.Group, a.Heads)
-	if err != nil {
+	if _, err := MergeAskKey(a.Group, a.Heads); err != nil {
 		return fmt.Errorf("delivery: an ask needs its group and at least one pull request's head: %w", err)
 	}
-	if want := AskingID(key, a.Asking); a.Ask.ID != want {
-		return fmt.Errorf("delivery: the ask's id %q is not %q, the id its group, heads and asking %d give", a.Ask.ID, want, a.Asking)
-	}
-	if len(a.Ask.Options) == 0 {
-		return fmt.Errorf("delivery: the ask has no option")
+	return routerAsk(a.Ask)
+}
+
+// routerAsk refuses a value that carries no router's ask: none, null, or JSON that is no object. What the ask says
+// is operator-channel's to check, through its client (novox/hq ADR 0627 §4).
+func routerAsk(raw json.RawMessage) error {
+	var fields map[string]json.RawMessage
+	if len(bytes.TrimSpace(raw)) == 0 || json.Unmarshal(raw, &fields) != nil || fields == nil {
+		return fmt.Errorf("delivery: the value carries no router's ask")
 	}
 	return nil
 }

go/delivery/gate_test.go

@@ -3,12 +3,11 @@ package delivery
 import (
 	"encoding/json"
 	"errors"
+	"regexp"
 	"strconv"
 	"strings"
 	"testing"
 	"time"
-
-	"git.novox.be/novox/mesh-sdk/go/asks"
 )
 
 func gateHeads() []Head {
@@ -66,7 +65,7 @@ func TestAskID(t *testing.T) { // 1201/AC2
 		if strings.Contains(id, ".") {
 			t.Errorf("id %q holds a dot", id)
 		}
-		if !asks.UsableID(id) {
+		if !routerUsableID(id) {
 			t.Errorf("id %q is not usable by the router", id)
 		}
 		if other, dup := seen[id]; dup {
@@ -83,7 +82,7 @@ func TestAskID(t *testing.T) { // 1201/AC2
 	if g != SettleGroup([]string{"novox/a@111111111111", "novox/b@222222222222"}) || !strings.HasPrefix(g, SettleGroupPrefix) || len(g) != len(SettleGroupPrefix)+12 {
 		t.Errorf("SettleGroup = %q", g)
 	}
-	if k, err := MergeAskKey(g, gateHeads()); err != nil || !asks.UsableID(AskID(k)) {
+	if k, err := MergeAskKey(g, gateHeads()); err != nil || !routerUsableID(AskID(k)) {
 		t.Errorf("the settle ask's key %q: %v", k, err)
 	}
 	for group, want := range map[string]string{g: "mesh-delivery.settle", "feat/x": "mesh-delivery.merge",
@@ -149,13 +148,22 @@ func sampleTurn() Turn {
 
 func sampleAsk() Ask {
 	key, _ := MergeAskKey("feat/x", gateHeads())
-	return Ask{Group: "feat/x", Heads: gateHeads(), Ask: asks.Ask{
-		ID: AskID(key), Headline: "Merge into main: group feat/x", Explanation: "The group passed its checks.",
-		Who: asks.Operator, Expires: time.Date(2026, 10, 20, 8, 0, 0, 0, time.UTC), OnExpiry: "nothing is merged",
-		Options: []asks.Option{{ID: "approve", Label: "Approve", Does: "merges", Level: asks.Approve, Binds: "sha256:00"}},
-	}}
+	return Ask{Group: "feat/x", Heads: gateHeads(), Ask: routerAskJSON(AskID(key), "Merge into main: group feat/x")}
 }
 
+// routerAskJSON is a router's ask as the gate carries it: the operator-channel seat's JSON, which mesh-sdk does not
+// type (novox/hq ADR 0627 §4).
+func routerAskJSON(id, headline string) json.RawMessage {
+	raw, _ := json.Marshal(map[string]any{"id": id, "headline": headline, "explanation": "The group passed its checks.",
+		"who": "operator", "expires": "2026-10-20T08:00:00Z", "on-expiry": "nothing is merged",
+		"options": []map[string]string{{"id": "approve", "label": "Approve", "does": "merges", "level": "approve", "binds": "sha256:00"}}})
+	return raw
+}
+
+// routerUsableID is the router's rule for an ask's id (operator-channel's client, UsableID), held here to check that
+// AskID and AskingID give ids the router takes.
+var routerUsableID = regexp.MustCompile(`^[A-Za-z0-9][A-Za-z0-9_-]{0,63}$`).MatchString
+
 func sampleOwed() []Owed {
 	return []Owed{
 		{Act: OwedStatus, Context: "mesh/merge-gate", State: "success", Target: "https://mesh.example/delivery/36"},
@@ -271,13 +279,11 @@ func TestGateValuesRefused(t *testing.T) { // 1201/AC5
 	wantErr("merge without its ask", err, "ask")
 
 	a := sampleAsk()
-	a.Ask.ID = "something-else"
-	_, err = EncodeAsk(a)
-	wantErr("ask with another id", err, "something-else", AskID("merge.feat/x."+mustHash(gateHeads())))
-	a = sampleAsk()
-	a.Ask.Options = nil
-	_, err = EncodeAsk(a)
-	wantErr("ask without options", err, "option")
+	for _, raw := range []string{"", "null", "[]", `"ask"`} {
+		a.Ask = json.RawMessage(raw)
+		_, err = EncodeAsk(a)
+		wantErr("a value with no router's ask "+raw, err, "no router's ask")
+	}
 	a = sampleAsk()
 	a.Heads = nil
 	_, err = EncodeAsk(a)
@@ -343,7 +349,7 @@ func TestGateSame(t *testing.T) { // 1201/AC6
 		t.Error("different merges are the same")
 	}
 	a := sampleAsk()
-	a.Ask.Headline = "other"
+	a.Ask = routerAskJSON(AskID("merge.feat/x."+mustHash(gateHeads())), "other")
 	if SameAsk(a, sampleAsk()) {
 		t.Error("different asks are the same")
 	}
@@ -414,7 +420,7 @@ func TestKeysEscapeAndRoundTrip(t *testing.T) { // 1323/AC1
 			t.Error("answer key differs from the ask key")
 		}
 		// the ask and the answer of such a group encode and decode
-		ask := Ask{Group: name, Heads: gateHeads(), Ask: asks.Ask{ID: AskID(ak), Options: []asks.Option{{ID: "ok"}}}}
+		ask := Ask{Group: name, Heads: gateHeads(), Ask: routerAskJSON(AskID(ak), "ok")}
 		if data, err := EncodeAsk(ask); err != nil {
 			t.Errorf("encode ask for %q: %v", name, err)
 		} else if _, err := DecodeAsk(data); err != nil {
@@ -600,7 +606,7 @@ func TestAskingID(t *testing.T) { // 1370/AC1
 				t.Errorf("askings %d and %d give the id %q", n, other, id)
 			}
 			seen[id] = n
-			if len(id) > 64 || !asks.UsableID(id) {
+			if len(id) > 64 || !routerUsableID(id) {
 				t.Errorf("id %q of asking %d is not usable by the router", id, n)
 			}
 			if id != AskID(key+"."+strconv.Itoa(n)) {
@@ -621,7 +627,7 @@ func TestAskChecksItsAsking(t *testing.T) { // 1370/AC2
 		t.Fatalf("asking 1 under the first id: %v", err)
 	}
 	a.Asking = 3
-	a.Ask.ID = AskingID(key, 3)
+	a.Ask = routerAskJSON(AskingID(key, 3), "Merge into main: group feat/x")
 	data, err := EncodeAsk(a)
 	if err != nil {
 		t.Fatalf("asking 3 under its id: %v", err)
@@ -630,15 +636,6 @@ func TestAskChecksItsAsking(t *testing.T) { // 1370/AC2
 	if got, err := DecodeAsk(data); err != nil || !SameAsk(got, a) || got.Asking != 3 {
 		t.Errorf("asking round trip: %+v %v", got, err)
 	}
-	a.Ask.ID = AskingID(key, 2)
-	if _, err := EncodeAsk(a); err == nil {
-		t.Error("asking 3 under asking 2's id was accepted")
-	}
-	a.Asking = 2
-	a.Ask.ID = AskID(key)
-	if _, err := EncodeAsk(a); err == nil {
-		t.Error("asking 2 under the first asking's id was accepted")
-	}
 	a.Asking = -1
 	if _, err := EncodeAsk(a); err == nil {
 		t.Error("a negative asking was accepted")

go/delivery/history_records.go

@@ -132,6 +132,10 @@ const (
 	BuildLogRead      = BuilderModule + "." + BuilderLog
 	BuildStartedEvent = "build.started"
 	BuildEndedEvent   = "build.ended"
+	// BuildSaidEvent is a build's narration between its start and its end (design 51: a build narrates its publish,
+	// asked, waiting on a seat, stored, refused, at least every five minutes while it waits): its module, fingerprint,
+	// line and why.
+	BuildSaidEvent = "build.said"
 	// BuilderLogDays is how long the log keeps its entries.
 	BuilderLogDays = 30
 	// BuildsSinceTool is the builder's tool answering every ended build since a time, in order (clause 9): its
@@ -175,6 +179,13 @@ type BuildLogEntry struct {
 	// sorted and each once, as the build module answered them (BuildAnswer.Imports; novox/hq ADR 0593 §2): the indexer
 	// keeps them on the module (KeptInputs2.Imports) when the build's fingerprint is the module's.
 	Imports []string `json:"imports,omitempty"`
+	// OutOfStep are, at a build's end, the generated files its test step found out of step with what their generator
+	// writes, as the build module answered them (its test step's `out-of-step`): the indexer raises a finding naming them
+	// for a trunk build, and only a clean build of the same module clears it. A start or a narration names none.
+	OutOfStep []string `json:"out-of-step,omitempty"`
+	// Line is a narration's words, Why what it narrates (asked, waiting, stored, refused): a build.said entry's alone.
+	Line string `json:"line,omitempty"`
+	Why  string `json:"why,omitempty"`
 }
 
 // BuildsSince is the answer of BuildsSinceTool: every ended build since a time, oldest first, and whether the log held
@@ -214,14 +225,25 @@ func EndedSince(entries []BuildLogEntry, since time.Time) []BuildLogEntry {
 func EncodeBuildLogEntry(e BuildLogEntry) ([]byte, error) {
 	e.V = Version
 	switch {
+	case e.Event == BuildSaidEvent:
+		switch {
+		case e.Module == "" || e.FP == "" || e.At.IsZero() || e.Line == "":
+			return nil, fmt.Errorf("delivery: a build's narration names its module, fingerprint, line and time")
+		case e.Outcome != "" || len(e.Made) > 0 || e.Manifest != "" || len(e.Against) > 0 || len(e.Imports) > 0 || len(e.OutOfStep) > 0:
+			return nil, fmt.Errorf("delivery: a build's narration names no outcome, manifest, base, artifact, import or file out of step")
+		}
+		return json.Marshal(e)
 	case e.Event != BuildStartedEvent && e.Event != BuildEndedEvent:
-		return nil, fmt.Errorf("delivery: a build log entry is %s or %s, not %q", BuildStartedEvent, BuildEndedEvent, e.Event)
+		return nil, fmt.Errorf("delivery: a build log entry is %s, %s or %s, not %q", BuildStartedEvent, BuildSaidEvent, BuildEndedEvent, e.Event)
+	case e.Line != "" || e.Why != "":
+		return nil, fmt.Errorf("delivery: a build's start or end carries no narration's line")
 	case e.Module == "" || e.FP == "" || e.Node == "" || e.At.IsZero() || e.Repository == "" || e.Commit == "":
 		return nil, fmt.Errorf("delivery: a build log entry names its module, fingerprint, repository, commit, node and time")
 	case e.Event == BuildEndedEvent && e.Outcome == "":
 		return nil, fmt.Errorf("delivery: a build's end names its outcome")
-	case e.Event == BuildStartedEvent && (e.Outcome != "" || len(e.Made) > 0 || e.Manifest != "" || len(e.Against) > 0 || len(e.Imports) > 0):
-		return nil, fmt.Errorf("delivery: a build's start names no outcome, manifest, base, artifact or import")
+	case e.Event == BuildStartedEvent && (e.Outcome != "" || len(e.Made) > 0 || e.Manifest != "" || len(e.Against) > 0 || len(e.Imports) > 0 ||
+		len(e.OutOfStep) > 0):
+		return nil, fmt.Errorf("delivery: a build's start names no outcome, manifest, base, artifact, import or file out of step")
 	}
 	if err := CheckImports(e.Imports); err != nil {
 		return nil, err

go/delivery/published_packages_test.go

@@ -56,18 +56,52 @@ func TestPublishedPackagesAndImportsRoundTripAndRefuse(t *testing.T) {
 		}
 	}
 
+	// The indexer's series value (design 51 *The versions*), as the indexer writes it: read back whole, and refused
+	// where a reader could not take it.
+	written := `{"v":1,"name":"` + sdk + `","package":"mesh-sdk/go","series":"0.1","seat":"go-package-registry","go-module":"` + sdk +
+		`","newest":{"version":"0.1.15","commit":"` + commit + `","digest":"sha256:0f","fingerprint":"fp1","contents":` + string(raw) +
+		`},"numbered":{"version":"0.1.16","commit":"` + commit + `"},"at":"2026-11-04T14:00:00Z"}`
+	series, err := DecodeSeriesPackage([]byte(written))
+	if err != nil || series.Name != sdk || series.Package != "mesh-sdk/go" || series.Newest.Contents == nil || series.Numbered.Version != "0.1.16" {
+		t.Fatalf("a series value as the indexer writes it reads %+v, %v", series, err)
+	}
+	if again, err := EncodeSeriesPackage(series); err != nil || string(again) != written {
+		t.Fatalf("a series value writes back as\n%s, %v, not\n%s", again, err, written)
+	}
+	if key := SeriesPackageKey(sdk, "0.1"); key != "git=2enovox=2ebe/novox/mesh-sdk/go.0.1" || !IsSeriesPackageKey(key) || IsSeriesPackageKey(EscapeName(sdk)) {
+		t.Fatalf("the series key %q is not told apart from a per-module key", key)
+	}
+	for name, mutate := range map[string]func(s *SeriesPackage){
+		"a series with no name":         func(s *SeriesPackage) { s.Name = "" },
+		"a series that is no series":    func(s *SeriesPackage) { s.Series = "0.1.15" },
+		"built from no artifact":        func(s *SeriesPackage) { s.Package = "mesh-sdk" },
+		"a numbered version of nothing": func(s *SeriesPackage) { s.Numbered = &SeriesVersion{} },
+	} {
+		s := series
+		mutate(&s)
+		if _, err := EncodeSeriesPackage(s); err == nil {
+			t.Errorf("%s: encoded", name)
+		}
+	}
+
 	imports := []string{sdk, sdk + "/announce"}
+	outOfStep := []string{"go/seats/meshbroker/contract.go", "ts/seats/meshbroker/src/index.ts"}
 	end := BuildLogEntry{Event: BuildEndedEvent, Module: "netcheck", FP: "src2:x", Repository: "novox/mesh-catalog", Commit: commit,
-		Node: "ace", At: good.At, Outcome: "done", Imports: imports}
+		Node: "ace", At: good.At, Outcome: "done", Imports: imports, OutOfStep: outOfStep}
 	raw, err = EncodeBuildLogEntry(end)
 	if err != nil {
 		t.Fatal(err)
 	}
-	if e, err := DecodeBuildLogEntry(raw); err != nil || !reflect.DeepEqual(e.Imports, imports) {
-		t.Fatalf("build end round trip: %v, %v", err, e.Imports)
+	if e, err := DecodeBuildLogEntry(raw); err != nil || !reflect.DeepEqual(e.Imports, imports) || !reflect.DeepEqual(e.OutOfStep, outOfStep) ||
+		!strings.Contains(string(raw), `"out-of-step":["go/seats/meshbroker/contract.go",`) {
+		t.Fatalf("build end round trip: %v, %v, %v in %s", err, e.Imports, e.OutOfStep, raw)
 	}
 	start := end
-	start.Event, start.Outcome = BuildStartedEvent, ""
+	start.Event, start.Outcome, start.Imports = BuildStartedEvent, "", nil
+	if _, err := EncodeBuildLogEntry(start); err == nil {
+		t.Error("a build's start with files out of step encoded")
+	}
+	start.Imports, start.OutOfStep = imports, nil
 	if _, err := EncodeBuildLogEntry(start); err == nil {
 		t.Error("a build's start with imports encoded")
 	}
@@ -75,9 +109,45 @@ func TestPublishedPackagesAndImportsRoundTripAndRefuse(t *testing.T) {
 	if _, err := EncodeBuildLogEntry(end); err == nil {
 		t.Error("unsorted imports encoded")
 	}
+	// A build narrates between its start and its end (build.said): its module, fingerprint, line and why, nothing of an
+	// end; a start or end carries no line.
+	said := BuildLogEntry{Event: BuildSaidEvent, Module: "netcheck", FP: "src2:x", At: good.At,
+		Line: "waiting on container-image-registry", Why: "waiting"}
+	if raw, err := EncodeBuildLogEntry(said); err != nil {
+		t.Errorf("a narration refused: %v", err)
+	} else if e, err := DecodeBuildLogEntry(raw); err != nil || e.Line != said.Line || e.Why != "waiting" {
+		t.Errorf("a narration's round trip: %+v, %v", e, err)
+	}
+	for name, mutate := range map[string]func(e *BuildLogEntry){
+		"a narration with no line":    func(e *BuildLogEntry) { e.Line = "" },
+		"a narration with an outcome": func(e *BuildLogEntry) { e.Outcome = "done" },
+		"a narration out of step":     func(e *BuildLogEntry) { e.OutOfStep = outOfStep },
+		"an end with a line": func(e *BuildLogEntry) {
+			e.Event, e.Outcome, e.Node, e.Repository, e.Commit = BuildEndedEvent, "done", "ace", "novox/mesh-catalog", commit
+		},
+	} {
+		e := said
+		mutate(&e)
+		if _, err := EncodeBuildLogEntry(e); err == nil {
+			t.Errorf("%s encoded", name)
+		}
+	}
 	var answer BuildAnswer
-	if err := json.Unmarshal([]byte(`{"artifacts":[],"imports":["`+sdk+`"]}`), &answer); err != nil || len(answer.Imports) != 1 {
-		t.Fatalf("build answer imports: %v, %v", err, answer.Imports)
+	if err := json.Unmarshal([]byte(`{"artifacts":[],"imports":["`+sdk+`"],"out-of-step":["go/seats/x/contract.go"]}`), &answer); err != nil ||
+		len(answer.Imports) != 1 || !reflect.DeepEqual(answer.OutOfStep, []string{"go/seats/x/contract.go"}) {
+		t.Fatalf("build answer imports and files out of step: %v, %v, %v", err, answer.Imports, answer.OutOfStep)
+	}
+	// The builder's version.numbered, as a build module consumes it: the builder's own body whole, and its subject.
+	numbered := VersionNumbered{Name: "mesh-sdk/go", Kind: "package", Version: "0.1.7", Module: "mesh-sdk", Fingerprint: "src2:x",
+		Commit: commit, Digest: "sha256:d", Seat: "go-package-registry", Head: commit, Again: "2026-11-04T15:00:00Z"}
+	if raw, err := EncodeVersionNumbered(numbered); err != nil {
+		t.Errorf("numbered refused: %v", err)
+	} else if back, err := DecodeVersionNumbered(raw); err != nil || back != numbered ||
+		!strings.Contains(string(raw), `"fingerprint":"src2:x"`) || VersionNumberedSubject != "mesh.mod.mesh-delivery-builder.event.version.numbered" {
+		t.Errorf("numbered round trip: %+v, %v, %s", back, err, raw)
+	}
+	if _, err := DecodeVersionNumbered([]byte(`{"name":"mesh-sdk/go","version":"0.1.7"}`)); err == nil {
+		t.Error("a numbered version naming no build is read")
 	}
 	if err := CheckImports([]string{"fmt"}); err == nil {
 		t.Error("CheckImports takes a standard package")

go/delivery/series_package.go

@@ -0,0 +1,105 @@
+package delivery
+
+import (
+	"encoding/json"
+	"fmt"
+	"regexp"
+	"strings"
+	"time"
+)
+
+// The packages state per series (design 51 *The versions*, design 32; ADR 0606 §1, ADR 0609 §1): beside the per-module
+// values (PublishedPackages), the indexer keeps one key per package and series, `<name>.<series>` (SeriesPackageKey),
+// holding the newest trunk version of that series the builder numbered and the newest a registry seat published. The
+// indexer alone writes it; its readers (the builder, the checker, the build modules) take this value's form from here.
+// A series key always holds a dot, which EscapeName never leaves in a per-module key (IsSeriesPackageKey).
+
+// SeriesPackage is the value of a series key. Name is the package's name in its own ecosystem (a Go package's module
+// path in its go.mod at the commit, an npm package's package.json name): the key is named by it, and a user's
+// `packages` names it. Package is the module and artifact it is built from, `<module>/<artifact>`, by which the builder
+// finds the name to number under; Series its `<major>.<minor>`. Seat is the registry seat it is published through;
+// GoModule the Go module path a Go package is fetched under, empty for any other. Newest is the newest version of the
+// series a seat published (what a user accepting the series builds against), Numbered the newest the builder numbered,
+// published or not yet.
+type SeriesPackage struct {
+	V        int            `json:"v"`
+	Name     string         `json:"name"`
+	Package  string         `json:"package,omitempty"`
+	Series   string         `json:"series"`
+	Seat     string         `json:"seat,omitempty"`
+	GoModule string         `json:"go-module,omitempty"`
+	Newest   *SeriesVersion `json:"newest,omitempty"`
+	Numbered *SeriesVersion `json:"numbered,omitempty"`
+	At       time.Time      `json:"at"`
+}
+
+// SeriesVersion is one version of a series: its number, the source commit it was built from, the digest and
+// fingerprint. Contents are, for a series' newest of a Go package, its Go module's requirements' and packages' digests
+// at Commit: what a user accepting the series is fingerprinted against; nil when the forge could not list it, and on a
+// numbered version.
+type SeriesVersion struct {
+	Version     string             `json:"version"`
+	Commit      string             `json:"commit,omitempty"`
+	Digest      string             `json:"digest,omitempty"`
+	Fingerprint string             `json:"fingerprint,omitempty"`
+	Contents    *PublishedPackages `json:"contents,omitempty"`
+}
+
+// SeriesPackageKey is the key of a package's series in the packages state: its ecosystem name as a key part and the
+// series.
+func SeriesPackageKey(name, series string) string { return EscapeName(name) + "." + series }
+
+// IsSeriesPackageKey says whether a key of the packages state is a series key, not a per-module one.
+func IsSeriesPackageKey(key string) bool { return strings.Contains(key, ".") }
+
+// builtFrom says whether pkg is `<module>/<artifact>`: a module name (no slash) and an artifact named after it.
+func builtFrom(pkg string) bool {
+	module, artifact, ok := strings.Cut(pkg, "/")
+	return ok && module != "" && artifact != ""
+}
+
+var seriesForm = regexp.MustCompile(`^[0-9]+\.[0-9]+$`)
+
+func (s SeriesPackage) check() error {
+	switch {
+	case s.Name == "":
+		return fmt.Errorf("delivery: a series of %q names no package in its ecosystem", s.Package)
+	case !seriesForm.MatchString(s.Series):
+		return fmt.Errorf("delivery: the series %q of %s is no <major>.<minor>", s.Series, s.Name)
+	case s.Package != "" && !builtFrom(s.Package):
+		return fmt.Errorf("delivery: the series %s of %s is built from %q, which is no <module>/<artifact>", s.Series, s.Name, s.Package)
+	}
+	for which, v := range map[string]*SeriesVersion{"newest": s.Newest, "numbered": s.Numbered} {
+		if v != nil && v.Version == "" {
+			return fmt.Errorf("delivery: the %s version of %s %s names no version", which, s.Name, s.Series)
+		}
+		if v != nil && v.Contents != nil {
+			if err := v.Contents.check(); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// EncodeSeriesPackage is s as JSON at Version; it refuses what a reader could not take.
+func EncodeSeriesPackage(s SeriesPackage) ([]byte, error) {
+	if err := s.check(); err != nil {
+		return nil, err
+	}
+	s.V = Version
+	return json.Marshal(s)
+}
+
+// DecodeSeriesPackage reads a series key's value; it refuses an unknown version (ErrUnknownVersion) and what
+// EncodeSeriesPackage refuses.
+func DecodeSeriesPackage(data []byte) (SeriesPackage, error) {
+	var s SeriesPackage
+	if err := decode(data, &s); err != nil {
+		return SeriesPackage{}, err
+	}
+	if err := s.check(); err != nil {
+		return SeriesPackage{}, err
+	}
+	return s, nil
+}

go/delivery/signers.go

@@ -39,11 +39,8 @@ const (
 	SignersKeyKey       = "key"
 	SignersAuthorityKey = "authority"
 
-	// SignVerb is the vault's verb that signs.
-	SignVerb = "sign"
-	// SignedEvent is what the vault says when it signed (Signed), on SignedSubject.
-	SignedEvent   = "signed"
-	SignedSubject = "mesh.mod." + VaultModule + ".event." + SignedEvent
+	// The verb sign, its answer and the event signed are the vault's contract's (mesh-contracts meshvault: VerbSign,
+	// SignAnswer, HolderEventSigned, HolderSubjectSigned, SignedHolderEvent; novox/hq ADR 0627 §1).
 
 	// KindNodeCertificate is a node's certificate for its internal name, asked by that node's node-engine alone.
 	KindNodeCertificate = "node-certificate"
@@ -200,28 +197,6 @@ func SignMessage(key ed25519.PrivateKey, context string, msg []byte) []byte {
 	return ed25519.Sign(key, append([]byte(context), msg...))
 }
 
-// Signed is the vault's `signed`: who asked, the kind, the node, and the sha256 digest of what was signed. Never a key.
-type Signed struct {
-	Caller string    `json:"caller"`
-	Kind   string    `json:"kind"`
-	Node   string    `json:"node,omitempty"`
-	Digest string    `json:"digest"`
-	Signer string    `json:"signer"`
-	At     time.Time `json:"at"`
-}
-
-// SignAnswer is what `sign` answers: for a node certificate the certificate as PEM and the authority that signed it,
-// for an enrolment the signature in base64; always the signer's fingerprint and the digest. Never a key's private half.
-type SignAnswer struct {
-	Kind        string `json:"kind"`
-	Node        string `json:"node,omitempty"`
-	Certificate string `json:"certificate,omitempty"`
-	Authority   string `json:"authority,omitempty"`
-	Signature   string `json:"signature,omitempty"`
-	Signer      string `json:"signer"`
-	Digest      string `json:"digest"`
-}
-
 // DigestOf is the digest a `signed` names: `sha256:<hex>` of the bytes signed.
 func DigestOf(b []byte) string {
 	sum := sha256.Sum256(b)

go/delivery/source.go

@@ -47,6 +47,10 @@ const (
 	ForgeMerged  = "merged"
 	ForgeRefused = "refused"
 	ForgeOpen    = "open"
+	// ForgeBranchDeleted says a branch of a repository was deleted on the forge, from the forge's own delete event
+	// (design 51 *Tagged versions*): the builder removes the tagged versions it asked for that branch. It names the
+	// repository and the branch and carries nothing else. A reader that does not know the kind ignores it.
+	ForgeBranchDeleted = "branch-deleted"
 )
 
 // OpenPull names an open pull request into the trunk: the repository as `<owner>/<name>` and the number.
@@ -166,10 +170,10 @@ func checkRepository(repository string) error {
 
 func checkForgeKind(kind string) error {
 	switch kind {
-	case ForgePull, ForgeMerged, ForgeRefused, ForgeOpen:
+	case ForgePull, ForgeMerged, ForgeRefused, ForgeOpen, ForgeBranchDeleted:
 		return nil
 	}
-	return fmt.Errorf("delivery: the forge kind %q is not pull, merged, refused or open", kind)
+	return fmt.Errorf("delivery: the forge kind %q is not pull, merged, refused, open or branch-deleted", kind)
 }
 
 // ForgeEvent is the name of a forge message of the given kind: `forge.<owner>.<name>.<kind>`.
@@ -704,6 +708,14 @@ func (f Forge) check() error {
 		if err := f.checkInputs(func(d string) bool { _, ok := f.Trees[d]; return ok }, "its trees"); err != nil {
 			return err
 		}
+	case ForgeBranchDeleted:
+		if f.Branch == "" {
+			return fmt.Errorf("delivery: a branch-deleted message needs the branch")
+		}
+		if f.Number != 0 || f.Head != "" || f.Merge != "" || len(f.Dirs) > 0 || len(f.Trees) > 0 || len(f.Manifests) > 0 ||
+			len(f.Locks) > 0 || len(f.Paths) > 0 || len(f.Packages) > 0 || f.Act != "" {
+			return fmt.Errorf("delivery: a branch-deleted message names its repository and branch and carries nothing else")
+		}
 	case ForgeRefused:
 		if len(f.Dirs) > 0 || f.DirsKnown {
 			return fmt.Errorf("delivery: a refused message carries no module directories")