| name | shadcn-ui |
| description | shadcn/ui — copy-owned React component library built on Radix UI and Tailwind CSS. Use when building with shadcn/ui or asking about its components, CLI, theming, configuration, or integration with Next.js, Vite, Remix, or other frameworks. Fetch live documentation for up-to-date details. |
shadcn/ui
CRITICAL: Your training data for shadcn/ui is unreliable. APIs change between versions and memorized patterns may be wrong or deprecated. Before writing any code, you MUST use WebFetch to read the live docs:
WebFetch("https://ui.shadcn.com/llms.txt")
Do not proceed without fetching this URL first. Never assume a component API exists — verify against current docs.
shadcn/ui is a collection of accessible, composable React components built on Radix UI primitives and styled with Tailwind CSS — components are copied into your project via CLI, giving you full ownership of the source code.
Best Practices
- Form components include React Hook Form and Zod — do not add separate form libraries. The
Form component wraps react-hook-form with built-in Zod validation. Adding formik, react-final-form, or additional validation packages is redundant.
components.json controls path aliases, Tailwind config, and component style — always check this file exists and is correctly configured before adding components. An incorrect tailwind.config path or missing CSS variable setup in globals.css causes components to render without styles.- There is no "update all" command —
shadcn add and shadcn diff operate per-component. When suggesting upgrades, list each component individually; bulk update scripts must be written manually.
