This is quality control tooling for Claude Code skills. It runs validation checks against the official best practices, flags common issues like non-third-person descriptions or missing trigger conditions, and automates the review-to-PR workflow. Three modes: self-review your own skills before publishing, evaluate external repos, or fork-improve-submit PRs automatically. The "additive only" principle is smart, it enforces that you never delete files or remove functionality when contributing to other people's skills, only add improvements. Depends on skill-creator for the actual validation scripts. If you're publishing skills or contributing to the marketplace, this catches the formatting and structure issues that would otherwise get flagged in review.
npx skills add https://github.com/daymade/claude-code-skills --skill skill-reviewer