This does two things well: it can scan your codebase to extract design patterns and generate a proper design token system with competitor research, or it can audit your UI across ten dimensions like color consistency, spacing rhythm, and accessibility with specific file-level fixes. The visual audit scoring is genuinely useful when something feels off but you can't articulate why. Mode 3 is funny but real: it flags AI slop like gratuitous purple gradients and pointless glassmorphism. Best used when starting a project that needs design foundations or when reviewing styling PRs where inconsistencies creep in. The HTML preview it generates is self-contained, which means you can actually share it with designers without dependency hell.
npx skills add https://github.com/affaan-m/everything-claude-code --skill design-system