gpt-5.3 codex review: Phase 7 and the addition of the new test-effectiveness-auditor skill.

tests/api/test_health.py

@@ -4,12 +4,13 @@ from fastapi import FastAPI
 from fastapi.testclient import TestClient
 
 from transcription.api.health import router
+from transcription.worker import WorkerHealthSnapshot
 
 
 class TestHealthEndpoint:
     """Verify /healthz endpoint behavior."""
 
-    def test_healthz_returns_ok_status(self):
+    def test_healthz_returns_ok_status_with_unknown_worker_when_uninitialized(self):
         """GET /healthz returns a healthy status payload."""
         app = FastAPI()
         app.include_router(router)
@@ -18,4 +19,26 @@ class TestHealthEndpoint:
         response = client.get("/healthz")
 
         assert response.status_code == 200
-        assert response.json() == {"status": "ok"}
+        assert response.json() == {"status": "ok", "worker": {"state": "unknown"}}
+
+    def test_healthz_returns_worker_failure_metadata_when_available(self):
+        app = FastAPI()
+        app.state.worker_health = WorkerHealthSnapshot(
+            state="failed",
+            error_id="abc12345",
+            error_category="internal_unexpected_error",
+        )
+        app.include_router(router)
+        client = TestClient(app)
+
+        response = client.get("/healthz")
+
+        assert response.status_code == 200
+        assert response.json() == {
+            "status": "ok",
+            "worker": {
+                "state": "failed",
+                "error_id": "abc12345",
+                "error_category": "internal_unexpected_error",
+            },
+        }