diff --git a/internal/catalogue/seats.go b/internal/catalogue/seats.go
index 2475e06..591c8be 100644
--- a/internal/catalogue/seats.go
+++ b/internal/catalogue/seats.go
@@ -35,7 +35,11 @@ type Seat struct {
 var seats = []Seat{
 	{Name: "mesh-controller", Scope: ScopeMesh, Decision: "novox/hq ADR 0079"},
 	{Name: "mesh-store", Scope: ScopeMesh, Delivers: "postgres-database", Decision: "novox/hq ADR 0079"},
-	{Name: "mesh-broker", Scope: ScopeMesh, Delivers: "amqp", Decision: "novox/hq ADR 0079"},
+	// The bus is the only broker (novox/hq ADR 0117): a module's messaging is subjects on it,
+	// scoped by its own emits/consumes, not a server handed out as a provision. So this seat
+	// delivers nothing, like mesh-controller and the-catalogue. The `amqp` interface — a private
+	// broker per consumer — retires with the compatibility broker.
+	{Name: "mesh-broker", Scope: ScopeMesh, Decision: "novox/hq ADR 0079"},
 	{Name: "the-artifact-store", Scope: ScopeMesh, Delivers: "artifact-store", Decision: "novox/hq ADR 0075"},
 	{Name: "the-catalogue", Scope: ScopeMesh, Decision: "novox/hq ADR 0110"},
 	{Name: "npm-package-registry", Scope: ScopeMesh, Delivers: "npm-package-registry", Decision: "novox/hq ADR 0109"},