Shadcn

This skill handles shadcn/ui setup and component integration, which matters because shadcn copies components as source code into your project rather than installing them as dependencies. It knows to always use the `-d` flag with `shadcn init` to avoid interactive prompts that break automation, covers both Radix UI and Base UI primitive options, and understands the unified radix-ui package migration from February 2026. The skill also knows about AI Elements compatibility requirements (Radix only, not Base UI) and the newer CLI v4 commands like `docs` and `view` for getting component context inline. Useful when you're setting up a design system, adding UI components, or troubleshooting why your registry configuration isn't working as expected.