If you've ever tried to find code by describing what it does rather than guessing the exact function name, this is what you want. It teaches the basics of semantic search with GrepAI, where "authenticate user" finds login flows, JWT validation, and auth middleware even if those exact words aren't in the code. The skill walks through query syntax, how to read relevance scores (0.90+ is excellent, below 0.60 is weak), and why "validate user login credentials" works better than just "auth". Good for understanding the difference between grep's exact matching and meaning-based search. The troubleshooting section is helpful when results seem off or you're getting nothing back.
npx skills add https://github.com/yoanbernabeu/grepai-skills --skill grepai-search-basics