diff --git a/modules/mesh-delivery-checker/internal/check/beside.go b/modules/mesh-delivery-checker/internal/check/beside.go
index 9b5d533..d64b4c3 100644
--- a/modules/mesh-delivery-checker/internal/check/beside.go
+++ b/modules/mesh-delivery-checker/internal/check/beside.go
@@ -27,6 +27,8 @@ const (
 	catalogueRepository = "novox/mesh-catalog"
 	nodeEngineRepo      = "novox/mesh-host"
 	nodeEngineModule    = "mesh-host"
+	// networkingRepository holds route-proxy, whose manifest the node-engine's proofs of a composition read.
+	networkingRepository = "novox/mesh-networking"
 )
 
 // besideRules are the repositories each core repository's tests read, as the tests state it (mesh-sdk go/internal/beside
@@ -34,9 +36,10 @@ const (
 // checks/deps). Which commit of each is besideCommit's rule. No repository's tests read the controller, which ended by its
 // unassignment (novox/hq ADR 0590, issue 1126), and its repository is emptied and archived (ADR 0593 §11), so it has no
 // siblings placed either. The catalogue's tests read the node-engine since its composer command moved there (ADR 0593
-// §7): mesh-build-go builds it for a compose ask.
+// §7): mesh-build-go builds it for a compose ask. The node-engine's read mesh-networking since route-proxy's proofs of a
+// composition moved into them (ADR 0593).
 var besideRules = map[string][]string{
-	nodeEngineRepo:        {catalogueRepository, SDKRepository},
+	nodeEngineRepo:        {catalogueRepository, SDKRepository, networkingRepository},
 	SDKRepository:         {catalogueRepository, nodeEngineRepo},
 	catalogueRepository:   {SDKRepository, nodeEngineRepo},
 	"novox/mesh-delivery": {SDKRepository, catalogueRepository},
diff --git a/modules/mesh-delivery-checker/internal/check/examiner_test.go b/modules/mesh-delivery-checker/internal/check/examiner_test.go
index 1eedd5d..5cdf4cc 100644
--- a/modules/mesh-delivery-checker/internal/check/examiner_test.go
+++ b/modules/mesh-delivery-checker/internal/check/examiner_test.go
@@ -217,7 +217,8 @@ func caseOf(t testing.TB, pulls ...delivery.CandidatePull) *Case {
 	if err != nil {
 		t.Fatal(err)
 	}
-	cs := CaseOf(c, map[string]string{repoA: trunkA, repoSDK: trunkS, "novox/mesh-controller": trunkA, "novox/mesh-catalog": trunkA})
+	cs := CaseOf(c, map[string]string{repoA: trunkA, repoSDK: trunkS, "novox/mesh-controller": trunkA, "novox/mesh-catalog": trunkA,
+		"novox/mesh-host": trunkA, "novox/mesh-networking": trunkA})
 	if cs == nil {
 		t.Fatal("no case")
 	}
diff --git a/modules/mesh-delivery-checker/internal/check/pins_test.go b/modules/mesh-delivery-checker/internal/check/pins_test.go
index 97f949e..81a7616 100644
--- a/modules/mesh-delivery-checker/internal/check/pins_test.go
+++ b/modules/mesh-delivery-checker/internal/check/pins_test.go
@@ -81,7 +81,7 @@ func besideOf(t *testing.T, b *bench, repository string) map[string]BesideRef {
 }
 
 func TestTheSiblingsAreWhereTheTestsStateThem(t *testing.T) { // review D2, ADR 0484 clause 4
-	const catalogue, host, controller = "novox/mesh-catalog", "novox/mesh-host", "novox/mesh-controller"
+	const catalogue, host, controller, networking = "novox/mesh-catalog", "novox/mesh-host", "novox/mesh-controller", "novox/mesh-networking"
 	hostRuns := strings.Repeat("7", 40)
 	b := newBench(t)
 	b.ex.Trunks = trunksOf(t, map[string]string{SDKRepository: trunkS, catalogue: trunkA, host: trunkA2})
@@ -101,6 +101,14 @@ func TestTheSiblingsAreWhereTheTestsStateThem(t *testing.T) { // review D2, ADR
 	if h := got[host]; h.Commit != hostRuns {
 		t.Errorf("the node-engine beside mesh-sdk = %+v, want the commit the mesh runs %s", h, hostRuns)
 	}
+	// ADR 0593: route-proxy's proofs of a composition moved into the node-engine's tests, which read its manifest in
+	// mesh-networking: beside a node-engine change, at the group's head when the group holds one, else at its trunk.
+	b = newBench(t)
+	b.ex.Trunks = trunksOf(t, map[string]string{SDKRepository: trunkS, catalogue: trunkA, host: trunkA2, networking: trunkA2})
+	b.judge(t, caseOf(t, pullOf(host, 8, head1), pullOf(networking, 3, head2)))
+	if n := besideOf(t, b, host)[networking]; n.Commit != head2 || n.Ref != "refs/pull/3/head" {
+		t.Errorf("mesh-networking beside the node-engine in a group = %+v, want the member's head %s", n, head2)
+	}
 	// Alone, mesh-sdk's tests read the catalogue's trunk, and the verdict names it.
 	b = newBench(t)
 	b.ex.Trunks = trunksOf(t, map[string]string{SDKRepository: trunkS, catalogue: trunkA, host: trunkA2})