// 优化逻辑：栈空且当前数为0 → 跳过（避免存储无效前导零）
'Affordability'
，这一点在Line官方版本下载中也有详细论述
{"user_content": "make it red", "tool_name": "change_background_color", "tool_arguments": "{\"color\": \"red\"}"}
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