mesh-build-go reads a check's toolchain from the job, answers with the Delivery SDK's CheckAnswer and typed FetchAnswer, and takes the toolchains value from the Delivery SDK; askrun_gaps.go and toolchain.go are gone (B5j; ADR 0584 clause 2, ADR 0634 section 6; issue 1966)

Claude-Session: https://claude.ai/code/session_01NcbgfFSnn24M3GcqttoU7i

modules/mesh-build-node/cmd/mesh-build-node/module_test.go

@@ -11,7 +11,6 @@ import (
 	"testing"
 	"time"
 
-	buildstep "git.novox.be/novox/mesh-catalog/modules/mesh-build-go/buildstep"
 	sdkstep "git.novox.be/novox/mesh-delivery/sdk/buildstep"
 	"git.novox.be/novox/mesh-sdk/go/health"
 )
@@ -19,17 +18,17 @@ import (
 // keptStates stands in for the toolchains and the steps states.
 type keptStates struct {
 	mu         sync.Mutex
-	toolchains map[string]buildstep.Toolchain
+	toolchains map[string]sdkstep.Toolchain
 	steps      map[string][]sdkstep.Step
 	ended      chan string
 }
 
 func newStates() *keptStates {
-	return &keptStates{toolchains: map[string]buildstep.Toolchain{}, steps: map[string][]sdkstep.Step{}, ended: make(chan string, 16)}
+	return &keptStates{toolchains: map[string]sdkstep.Toolchain{}, steps: map[string][]sdkstep.Step{}, ended: make(chan string, 16)}
 }
 
 func (s *keptStates) putToolchain(key string, value any) (uint64, error) {
-	tc, err := buildstep.DecodeToolchain(value.(json.RawMessage))
+	tc, err := sdkstep.DecodeToolchain(value.(json.RawMessage))
 	if err != nil {
 		return 0, err
 	}
@@ -53,7 +52,7 @@ func (s *keptStates) putStep(key string, value any) (uint64, error) {
 	return 1, nil
 }
 
-func (s *keptStates) toolchain(key string) (buildstep.Toolchain, bool) {
+func (s *keptStates) toolchain(key string) (sdkstep.Toolchain, bool) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	tc, ok := s.toolchains[key]
@@ -88,7 +87,7 @@ func TestStartWritesTheToolchainAndHealthIsHealthy(t *testing.T) {
 	ctx, stop := context.WithCancel(context.Background())
 	defer stop()
 	go m.Start(ctx)
-	var tc buildstep.Toolchain
+	var tc sdkstep.Toolchain
 	for deadline := time.Now().Add(3 * time.Second); time.Now().Before(deadline); time.Sleep(5 * time.Millisecond) {
 		if got, ok := states.toolchain("ace.typescript"); ok {
 			tc = got

modules/mesh-build-node/cmd/mesh-build-node/read.go

@@ -14,7 +14,6 @@ import (
 	"sync"
 	"time"
 
-	buildstep "git.novox.be/novox/mesh-catalog/modules/mesh-build-go/buildstep"
 	sdkstep "git.novox.be/novox/mesh-delivery/sdk/buildstep"
 	stdio "git.novox.be/novox/mesh-sdk/go"
 )
@@ -192,7 +191,7 @@ func (m *Module) RecentSteps(limit int) (lines []StepLine, cut bool, err error)
 }
 
 // ReadToolchains is every key of the toolchains state (<node>.<language>) with its stored value.
-func (m *Module) ReadToolchains() (map[string]buildstep.Toolchain, error) {
+func (m *Module) ReadToolchains() (map[string]sdkstep.Toolchain, error) {
 	if m.ReadToolchainsState.Keys == nil || m.ReadToolchainsState.Get == nil {
 		return nil, fmt.Errorf("the toolchains state cannot be read here")
 	}
@@ -210,12 +209,12 @@ func (m *Module) ReadToolchains() (map[string]buildstep.Toolchain, error) {
 	if err != nil {
 		return nil, err
 	}
-	out := map[string]buildstep.Toolchain{}
+	out := map[string]sdkstep.Toolchain{}
 	for i, raw := range raws {
 		if len(raw) == 0 {
 			continue
 		}
-		t, err := buildstep.DecodeToolchain(raw)
+		t, err := sdkstep.DecodeToolchain(raw)
 		if err != nil {
 			return nil, fmt.Errorf("%s: %w", keys[i], err)
 		}

modules/mesh-build-node/cmd/mesh-build-node/read_test.go

@@ -10,7 +10,6 @@ import (
 	"testing"
 	"time"
 
-	buildstep "git.novox.be/novox/mesh-catalog/modules/mesh-build-go/buildstep"
 	sdkstep "git.novox.be/novox/mesh-delivery/sdk/buildstep"
 )
 
@@ -124,7 +123,7 @@ func TestStepsToolListsRecentStepsOfThisNode(t *testing.T) {
 // 1562 (1483/AC5): build_node_toolchains answers each toolchains key as stored.
 func TestToolchainsToolAnswersTheStoredKeys(t *testing.T) {
 	tcs := fakeState{}
-	b, err := buildstep.EncodeToolchain(buildstep.Toolchain{Language: "typescript", Version: "v22.1.0", Recipe: "1", At: time.Date(2026, 10, 21, 9, 0, 0, 0, time.UTC)})
+	b, err := sdkstep.EncodeToolchain(sdkstep.Toolchain{Language: "typescript", Version: "v22.1.0", Recipe: "1", At: time.Date(2026, 10, 21, 9, 0, 0, 0, time.UTC)})
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -134,7 +133,7 @@ func TestToolchainsToolAnswersTheStoredKeys(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	got := out.(map[string]any)["toolchains"].(map[string]buildstep.Toolchain)
+	got := out.(map[string]any)["toolchains"].(map[string]sdkstep.Toolchain)
 	if got["ace.typescript"].Version != "v22.1.0" || got["ace.typescript"].Recipe != "1" {
 		t.Errorf("toolchains = %+v", got)
 	}