Helps Claude apply Lean UX principles when you're designing features or planning UX work. Instead of generating pixel-perfect specs, it pushes you to write testable hypotheses, map assumptions by risk, and pick the lightest experiment that answers your question. Comes with a 0-10 scoring system that rates design plans against lean principles and tells you exactly what's missing to hit 10/10. Useful when you're stuck in deliverable hell or need to get engineers and designers co-designing instead of throwing docs over the wall. The hypothesis canvas and experiment pattern references give you actual formats to follow, not just theory.
npx skills add https://github.com/wondelai/skills --skill lean-ux