CLI

You inherit a 4000-line function. No comments, no docs, original author left. This is not a technical problem—it is a psychological one. This article covers how to use AI to build cognitive maps, write tests, plan refactoring, and convince your manager to give you time to address technical debt.

接手一個 4000 行的 function，沒註解、沒文件、原作者離職。這不是技術問題，是心理壓力問題。這篇講怎麼用 AI 建立認知地圖、寫測試、拆分重構，以及怎麼說服主管給你時間處理技術債。

New project, README says npm install and you are good. Half a day later, still debugging the environment. Then I started using Claude Code. Same task, 10 minutes. This article covers exactly how to do it, and when to let AI take over completely.

接手新專案，README 說「npm install 就能跑」，結果花了半天還在 debug 環境。後來我開始用 Claude Code，同樣的事 10 分鐘搞定。這篇講具體怎麼做，以及什麼時候該讓 AI 完全接手。