Covers official Tailwind plugins (typography, forms, container queries) and custom plugin development. You'll reach for this when setting up prose styles for markdown content, resetting form elements to something actually styleable, or writing container queries that respond to parent width instead of viewport. The skill includes v4's CSS-first approach with @utility directives, which is a cleaner path than spinning up JavaScript plugins for simple things. Honestly most useful as a reference when you forget the prose element modifiers or container query breakpoint sizes. The custom plugin examples show both the old plugin() API and the new CSS directives, so it's solid for migration work too.
npx skills add https://github.com/josiahsiegel/claude-plugin-marketplace --skill tailwindcss-plugins