Hey PH 👋 Made this because I kept shipping Claude Skills that worked fine until Anthropic shipped a new model, and I'd only find out something broke by accident. The thing I'm most proud of is the self-growing eval loop — a caught regression becomes a permanent test automatically, instead of a report you read once and forget. I haven't found another eval tool that does that for either red-teaming or fuzz-testing. Honest gap: promptfoo has 50+ red-team attack plugins to my 16, and years of production hardening mine hasn't had yet. Not claiming to beat it outright — just that nothing else combines skill-aware security scanning + cross-model regression + git bisect + the self-growing loop in one tool. Repo has a demo GIF near the top showing the actual catch → generate → accept loop. Would love feedback, especially from anyone running Claude Skills in production already.

SkillCI

Regression testing for Claude Skills

Regression testing for Claude Skills