curl --request GET \
  --url https://api.example.com/api/v1/runs/{id}/stages \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "verify@2",
      "name": "Propose Changes",
      "node_id": "verify",
      "visit": 2,
      "wall_time_ms": 154000,
      "provider_used": {
        "mode": "agent",
        "provider": "openai",
        "model": "gpt-5.5"
      },
      "started_at": "2026-04-29T12:34:56Z"
    }
  ],
  "meta": {
    "has_more": true,
    "total": true
  }
}