diff --git a/tests/control_plane_ts/authority_source.test.ts b/tests/control_plane_ts/authority_source.test.ts
index eeb891d2cc..1a19f6f908 100644
--- a/tests/control_plane_ts/authority_source.test.ts
+++ b/tests/control_plane_ts/authority_source.test.ts
@@ -8,6 +8,7 @@ import {registryAuthoritySourceCheck} from "../../loopx/control_plane/coordinati
 import {
   claimLocalCoordinationTodo, createLocalCoordinationTodo, updateLocalCoordinationTodo,
   terminalLifecycleLocalCoordinationTodo, pollLocalCoordinationMonitor,
+  LOCAL_COORDINATION_TODO_TERMINAL_LIFECYCLE_REQUEST_SCHEMA,
 } from "../../loopx/control_plane/coordination/local_authority_runtime.ts";
 
 test("registry witness captures primitive values across awaited request mutation", async t => {
@@ -30,7 +31,6 @@ test("registry witness captures primitive values across awaited request mutation
 const wires = [
   {invoke: createLocalCoordinationTodo, prefix: "loopx_local_coordination_todo_create_request", legacy: [0], current: 1},
   {invoke: claimLocalCoordinationTodo, prefix: "loopx_local_coordination_todo_claim_request", legacy: [0], current: 1},
-  {invoke: terminalLifecycleLocalCoordinationTodo, prefix: "loopx_local_coordination_todo_terminal_lifecycle_request", legacy: [0], current: 1},
   {invoke: updateLocalCoordinationTodo, prefix: "loopx_local_coordination_todo_update_request", legacy: [0, 1], current: 2},
   {invoke: pollLocalCoordinationMonitor, prefix: "loopx_coordination_monitor_poll_request", legacy: [0, 1], current: 2},
 ];
@@ -47,3 +47,24 @@ for (const wire of wires) test(`${wire.prefix}: source obligation cannot silentl
     assert.match(String(result.reason), /registry_source/u);
   }
 });
+
+test("terminal lifecycle v3 rejects old wires and requires a registry witness", async () => {
+  const prefix = "loopx_local_coordination_todo_terminal_lifecycle_request";
+  for (const version of [0, 1, 2]) {
+    const result = await terminalLifecycleLocalCoordinationTodo({
+      schema_version: `${prefix}_v${version}`, registry_source: null,
+    });
+    assert.equal(result.status, "failed");
+    assert.match(String(result.reason), /schema mismatch/u);
+  }
+  for (const source of [undefined, {}, {path: "relative", sha256: "0".repeat(64)},
+    {path: "/unused", sha256: "invalid"}]) {
+    const result = await terminalLifecycleLocalCoordinationTodo({
+      schema_version: LOCAL_COORDINATION_TODO_TERMINAL_LIFECYCLE_REQUEST_SCHEMA,
+      command: "complete", operation_identity: {kind: "explicit", operation_id: "source-wire"},
+      registry_source: source,
+    });
+    assert.equal(result.status, "failed");
+    assert.match(String(result.reason), /registry_source/u);
+  }
+});