{"name":"LangGraph AG-UI Server","endpoints":{"health":"GET /health","agent_chat":"POST /agent/chat (AG-UI SSE stream, detached run)","thread_stream":"GET /threads/{id}/stream?afterId=N (SSE resume)","active_run":"GET /threads/{id}/runs/active","contract_catalog":"GET /contract/catalog","auth":"GET /auth/me, POST /auth/tokens, POST /auth/oauth/google (invite-gated signup)","sandbox_sessions":"POST /sandbox/sessions"},"frontend":"http://localhost:5173","docs":"/docs"}