prodcheck

4,372 things to check before you ship: security, performance, scale, being findable, and what to do when it breaks anyway. 88% apply to any stack, and 26 products get their own supplements. Add it to Claude Code as an MCP server, drop a review skill into your repo with `npx prodcheck init`, or paste a prompt into any chat window. Whatever runs it cites file:line or answers UNKNOWN. It never marks anything verified. That part stays yours. Free, open source, no account.