{
  "model": "claude-haiku-5-5",
  "max_tokens": 128,
  "thinking": {
    "type": "disabled"
  },
  "output_config": {
    "effort": "low"
  },
  "messages": [
    {
      "role": "user",
      "content": "Responde solo: conexión API correcta"
    }
  ]
}