近期，Codex、Claude桌面版、Cursor3.0等主流AI Agent產品不約而同採用三欄佈局設計，這並非偶然模仿，而是交互模式優化的必然趨勢。傳統聊天機器人兩欄佈局僅適合簡單問答，而Agent時代AI能自主編程、修改文件、調用工具，用戶需直觀審查操作結果，因此右側工作區應運而生。同時，用戶使用Agent時間增長，三欄佈局減少了頻繁切換，提升了效率。
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