This is a comprehensive rulebook for Tailwind CSS v4 with 44 rules organized by performance impact, from critical build configuration down to animation tweaks. You'd pull this in when setting up v4 projects, migrating from v3, or optimizing bundle sizes. It covers the CSS-first approach, the new @theme directive, OKLCH colors, and v4-specific syntax like parentheses for CSS variables. The priority system is genuinely useful because it tells you what actually matters for build performance versus what's just polish. Each rule links to detailed examples, though the real value is having someone distill v4's breaking changes and new patterns into actionable guidance instead of hunting through release notes.
npx skills add https://github.com/pproenca/dot-skills --skill tailwind