{
  "system_prefix": null,
  "history_count": 1,
  "user_summary": {
    "text": "用一句话解释缓存",
    "has_image": false,
    "has_tool_result": false
  },
  "assistant_summary": {
    "text": "缓存是把经常要用的数据临时存在更靠近使用方的位置，从而加快访问速度、减少延迟和降低后端压力。",
    "tool_calls": [],
    "stop_reason": "stop"
  }
}

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  "completion_tokens": 86,
  "completion_tokens_details": {
    "reasoning_tokens": 59
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  "prompt_tokens": 87,
  "prompt_tokens_details": {
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}