{
  "observations": [
    {
      "method": "POST",
      "host": "uploads.github.com",
      "status": 401,
      "headers": {
        "x-github-request-id": "4CD7:31E81D:C5069:E70BE:6AD3D43C",
        "content-type": "application/json; charset=utf-8",
        "server": "envoy"
      },
      "client_authorization_attached": true,
      "client": "httpx",
      "auth_scheme": "token",
      "credential_source": "GH_TOKEN"
    },
    {
      "client": "gh",
      "host": "uploads.github.com",
      "method": "POST",
      "status": 401,
      "exit_code": 1,
      "headers": {
        "content-type": "application/json; charset=utf-8",
        "server": "envoy",
        "x-github-request-id": "ADAA:355B8B:2A3FE2:3F6FD8:6AD3D43D"
      },
      "credential_source": "GH_TOKEN"
    }
  ],
  "conclusion": "Client-side header attachment confirmed for HTTPX; proxy-side header contents are not observable. Current host-scoped credential propagation remains unverified."
}