{
  "credentials": {
    "observatory-token": {
      "source": "file",
      "path": "/run/secrets/observatory-token",
      "scheme_hint": "bearer"
    }
  },
  "upstreams": {
    "observatory": {
      "transport": "openapi",
      "base_url": "https://observatory.example",
      "schema_file": "/absolute/path/to/observatory.openapi.json",
      "auth": [
        { "scheme": "bearer", "binding": "observatory-token" }
      ],
      "include_operations": [
        "list_traces",
        "get_trace",
        "list_trace_steps",
        "get_trace_cost"
      ],
      "operation_overrides": {
        "list_trace_steps": {
          "default_args": { "summary": true }
        }
      },
      "request_timeout_ms": 5000,
      "max_response_bytes": 1048576,
      "schema_max_bytes": 1048576
    }
  }
}