构建一个即时打开的 macOS 语法高亮查看器
Build a instant-opening markdown viewer for macOS
作者请求 Claude Code 构建一个 macOS 语法高亮查看器，并表示它打开文件的速度比他们使用过的任何其他应用程序都要快。
做了什么
The author put the request into Claude Code, running Opus 5.5, and asked for a macOS markdown viewer that opens as fast as possible. The viewer comes from the same codebase as their JSON viewer. The source gives no further steps, prompts, or details on how a person guided it.
效果如何
The author says the viewer opens and displays a markdown file instantly, faster than any other macOS app they've used, and faster than Bitwarden's Chrome extension shows its fill UI. No benchmarks are given.
值得注意
Speed was the explicit ask in the prompt; the author says Claude can build something extremely fast if you request it, and they didn't have to design for it themselves.
试试这个 Prompt
Build me a lightweight macOS app that opens markdown files instantly and renders them cleanly, using [Swift/your preferred stack]. It should be set as a handler for .md files, launch in well under a second, support [features like dark mode, live reload, code highlighting], and avoid heavy dependencies. When you're done, build the app, show me how to install it and set it as my default markdown viewer, and tell me how you checked the launch speed. Ask me before deleting or overwriting any existing files.