When your OMC session is acting weird or a workflow suddenly breaks, this gives you a structured way to actually figure out why instead of guessing. It walks through checking traces, state tools, and logs in order, helps you reproduce the problem narrowly, and separates symptoms from root cause before suggesting a fix. The real value is in how it forces you to look at evidence first rather than rewriting everything. It will also tell you plainly if you've hit an actual product bug rather than something in your code. Think of it as a diagnostic checklist that keeps you from spiraling when Claude Code itself seems confused.
npx skills add https://github.com/yeachan-heo/oh-my-claudecode --skill debug