codebase-design：用删除测试清理代码库冗余抽象
Matt Pocock 分享的 Agent 技能提示词，通过删除测试找出浅模块与冗余抽象，持续精简代码库。
mattpocock/skills prompt of the day: /codebase-design Take a look in the repo for shallow modules, applying the deletion test and look for candidates for deletion. Helps kill unnecessary abstractions.