diff --git a/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/integration_test.go b/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/integration_test.go
index b7611e1..9e96ad9 100644
--- a/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/integration_test.go
+++ b/modules/mesh-delivery-checker/cmd/mesh-delivery-checker/integration_test.go
@@ -10,6 +10,7 @@ import (
 	"io"
 	"os"
 	"path/filepath"
+	"sort"
 	"strings"
 	"sync"
 	"sync/atomic"
@@ -81,6 +82,9 @@ type fakeBuildModules struct {
 	mu       sync.Mutex
 	calls    map[string]int // by `<module>.<tool>`
 	testTool *testing.T
+	// beside is, by workspace, the siblings the fetch placed in it as `<owner/repo> <commit>`, sorted: a digest echoes them
+	// (1929/AC2; mesh-sdk buildstep.besideOf), or the level runs whole and keeps nothing.
+	beside map[string][]string
 }
 
 func (f *fakeBuildModules) count(tool string) int {
@@ -100,10 +104,30 @@ func (f *fakeBuildModules) result(t *testing.T, tool string, args map[string]any
 		}
 		fetched := readCaptured(t, name)
 		fetched["commit"], fetched["base"] = args["commit"], args["base"]
+		var refs []struct {
+			Repository string `json:"repository"`
+			Commit     string `json:"commit"`
+		}
+		raw, _ := json.Marshal(args["beside"])
+		_ = json.Unmarshal(raw, &refs)
+		var lines []string
+		for _, r := range refs {
+			lines = append(lines, r.Repository+" "+r.Commit)
+		}
+		sort.Strings(lines)
+		f.mu.Lock()
+		if f.beside == nil {
+			f.beside = map[string][]string{}
+		}
+		f.beside[fmt.Sprint(fetched["workspace"])] = lines
+		f.mu.Unlock()
 		v = fetched
 	case strings.HasSuffix(tool, "_digest"):
 		d := map[string]string{"unit": digU, "integration": digI}[level]
-		v = map[string]any{"level": level, "packages": map[string]string{"fixture/slow": d}}
+		f.mu.Lock()
+		beside := f.beside[fmt.Sprint(args["workspace"])]
+		f.mu.Unlock()
+		v = map[string]any{"level": level, "packages": map[string]string{"fixture/slow": d}, "beside": beside}
 	case strings.HasSuffix(tool, "_test"):
 		r := readCaptured(t, "go-test-slow")
 		r["level"] = level
@@ -288,6 +312,15 @@ func startBed(t *testing.T) *bed {
 		}
 		b.buckets[name] = kv
 	}
+	// 1929/AC1: the indexer's value of the repository's module, with no TypeScript manifest, so the Go build module alone
+	// judges the repository (an unknown repository is judged by both, issue 1887 A12).
+	known, err := delivery.EncodeModule(delivery.Module{Repository: repo, Commit: trunk, Path: "modules/m", None2: "the fingerprint is computed with its chain"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := b.buckets[delivery.ModulesBucket].Put(ctx, "m", known); err != nil {
+		t.Fatal(err)
+	}
 	b.setOnline(t, "n1", true)
 	for _, module := range []string{"mesh-build-go", "mesh-build-node"} {
 		b.setHealth(t, "n1", module)
@@ -436,7 +469,7 @@ func (b *bed) owed(t *testing.T, number int, head, state string) delivery.Owed {
 // TestCheckerJudgesACandidateAndOwesItsStatus: a candidate the indexer wrote, one pull request of mesh-delivery, is fetched
 // merged onto the trunk the gate names, digested and tested at both levels on the node, kept, previewed; the verdict passes
 // with the counts of both levels and the composition not run, and the status mesh/check is owed on the head as success.
-func TestCheckerJudgesACandidateAndOwesItsStatus(t *testing.T) { // N6/AC5, 1300/AC5, 1445/AC1
+func TestCheckerJudgesACandidateAndOwesItsStatus(t *testing.T) { // N6/AC5, 1300/AC5, 1445/AC1, 1929/AC1
 	b := startBed(t)
 	key := b.candidate(t, "feat/x", pull(repo, 7, head1))
 	b.start(t, nil)
@@ -476,7 +509,7 @@ func TestCheckerJudgesACandidateAndOwesItsStatus(t *testing.T) { // N6/AC5, 1300
 
 // TestACheckOfEqualInputsRunsNothing: a second candidate (another head, the same digests) is checked with every package
 // taken from the first's kept verdicts: no test step runs and no second kept key appears.
-func TestACheckOfEqualInputsRunsNothing(t *testing.T) { // 1287/AC5, 1288/AC6
+func TestACheckOfEqualInputsRunsNothing(t *testing.T) { // 1287/AC5, 1288/AC6, 1929/AC2
 	b := startBed(t)
 	first := b.candidate(t, "feat/x", pull(repo, 7, head1))
 	b.start(t, nil)
@@ -574,7 +607,7 @@ func TestACheckLeftRunningIsTakenOverWhenTheCheckerStarts(t *testing.T) { // N6/
 
 // TestAMemberNamingAMeshSDKCommitOffTheTrunkFailsNamingTheCommit: the go.mod the forge answers names a commit that main does not
 // hold; the verdict fails naming the member and the commit and no test runs (ADR 0484 clause 9).
-func TestAMemberNamingAMeshSDKCommitOffTheTrunkFailsNamingTheCommit(t *testing.T) { // 1624/AC2
+func TestAMemberNamingAMeshSDKCommitOffTheTrunkFailsNamingTheCommit(t *testing.T) { // 1624/AC2, 1929/AC3
 	b := startBed(t)
 	b.stalePin.Store(true)
 	key := b.candidate(t, "feat/x", pull(repo, 7, head1))
@@ -583,9 +616,7 @@ func TestAMemberNamingAMeshSDKCommitOffTheTrunkFailsNamingTheCommit(t *testing.T
 	if v.State != delivery.VerdictFail || !strings.Contains(v.Failed.Words, "9aaa5c80ac5c") || !strings.Contains(v.Failed.Words, repo+"#7") {
 		t.Fatalf("verdict = %+v", v)
 	}
-	if n := b.fake.count("mesh-build-go.build_go_test"); n != 0 {
-		t.Errorf("%d test steps ran after a stale pin", n)
-	}
+	// 1929/AC3: no assertion that no test ran: one ask runs fetch, digest and tests (ADR 0525 §3).
 }
 
 // triesStore is the tries bucket as the tools write it.
@@ -671,7 +702,7 @@ func TestTheCheckerSaysOwedReadableOnTheBus(t *testing.T) { // R2-1
 		break
 	}
 	if said.Module != "mesh-delivery-checker" || said.Node != "n1" || !said.Keeps("owed") || !said.Readable("owed") ||
-		!said.Readable("previews") || !said.Readable("verdicts") || said.Readable("kept") || said.Readable("tries") || len(said.States) != 5 {
-		t.Fatalf("the checker said %+v, want its five states with owed, previews and verdicts readable", said)
+		!said.Readable("previews") || !said.Readable("verdicts") || !said.Readable("kept") || said.Readable("tries") || len(said.States) != 5 {
+		t.Fatalf("the checker said %+v, want its five states with kept, owed, previews and verdicts readable (1929/AC4; 1887 A5b)", said)
 	}
 }