+[[requirements]]
+id = "REQ-SERVING-FIXTURE-CONTROL-PLANE"
+title = "Daemon-backed serving fixtures compose a real canonical seed-control server, a distinct broker, and an ephemeral docs listener through shared test support. DocsStatus must discover the bound listener through seed control; naming a Broker after the seed socket cannot substitute for the control protocol. The docs fixture retains the absent-control and unbound-listener discriminator; twohost role B uses the same composition without changing role A's proxy protocol."
+required_stages = ["doc", "impl", "int"]
+
+  "REQ-SERVING-FIXTURE-CONTROL-PLANE",
+fn discovery_distinguishes_absent_control_from_unbound_listener() {
+fn serves_published_surface_and_refuses_escapes_and_writes() {
+fn rig_net_host(identity: Identity, port: u16) -> NetHost {