Claude Code: Fix A2A - add /health and /agents endpoints

app.py

@@ -1,9 +1,32 @@
 from fastapi import FastAPI
+from datetime import datetime
+from fastapi.responses import JSONResponse
+
 app = FastAPI()
 
 @app.get("/")
 def read_root():
-    return {"status": "minimal_ok"}
+    return {"status": "ok", "service": "Cain"}
+
+@app.get("/health")
+def health_check():
+    """Health check endpoint for a2a-proxy polling."""
+    return JSONResponse({
+        "status": "healthy",
+        "stage": "RUNNING",
+        "timestamp": datetime.utcnow().isoformat() + "+00:00",
+    }, status_code=200)
+
+@app.get("/agents")
+def get_agents():
+    """Agent list endpoint for a2a-proxy discovery."""
+    return [{
+        "agentId": "cain",
+        "name": "Cain",
+        "state": "idle",
+        "detail": "Cain is operational",
+        "authStatus": "approved",
+    }]
 
 if __name__ == "__main__":
     import uvicorn