spec/fixtures/responses/messages-with-thinking.json


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{
  "id": "msg_think_01",
  "type": "message",
  "role": "assistant",
  "model": "claude-sonnet-4-5-20250929",
  "stop_reason": "end_turn",
  "content": [
    {
      "type": "thinking",
      "thinking": "Let me reason through this carefully. The question asks about the capital of France. France is a country in Western Europe. Its capital city is Paris.",
      "signature": "EqQB..."
    },
    {
      "type": "text",
      "text": "The capital of France is Paris."
    }
  ],
  "usage": {
    "input_tokens": 30,
    "output_tokens": 50
  }
}