nuxt-ui

# Nuxt UI v4

Component library for Vue 3 and Nuxt 4+ built on Reka UI (headless) + Tailwind CSS v4 + Tailwind Variants.

**Current stable version:** v4.4.0 (January 2026)

## When to Use

- Installing/configuring @nuxt/ui
- Using UI components (Button, Card, Table, Form, etc.)
- Customizing theme (colors, variants, CSS variables)
- Building forms with validation
- Using overlays (Modal, Toast, CommandPalette)
- Working with composables (useToast, useOverlay)

**For Vue component patterns:** use `vue` skill
**For Nuxt routing/server:** use `nuxt` skill

## Available Guidance

| File                                                         | Topics                                                                           |
| ------------------------------------------------------------ | -------------------------------------------------------------------------------- |
| **[references/installation.md](references/installation.md)** | Nuxt/Vue setup, pnpm gotchas, UApp wrapper, module options, prefix, tree-shaking |
| **[references/theming.md](references/theming.md)**           | Semantic colors, CSS variables, app.config.ts, Tailwind Variants                 |
| **[references/components.md](references/components.md)**     | Component index by category (125+ components)                                    |
| **components/\*.md**                                         | Per-component details (button.md, modal.md, etc.)                                |
| **[references/forms.md](references/forms.md)**               | Form components, validation (Zod/Valibot), useFormField                          |
| **[references/overlays.md](references/overlays.md)**         | Toast, Modal, Slideover, Drawer, CommandPalette                                  |
| **[references/composables.md](references/composables.md)**   | useToast, useOverlay, defineShortcuts, useScrollspy                              |

## Loading Files

**Consider loading these reference files based on your task:**

- [ ] [references/installation.md](references/installation.md) - if installing or configuring @nuxt/ui
- [ ] [references/theming.md](references/theming.md) - if customizing theme, colors, or Tailwind Variants
- [ ] [references/components.md](references/components.md) - if browsing component index or finding components by category
- [ ] [references/forms.md](references/forms.md) - if building forms with validation (Zod/Valibot)
- [ ] [references/overlays.md](references/overlays.md) - if using Toast, Modal, Slideover, Drawer, or CommandPalette
- [ ] [references/composables.md](references/composables.md) - if using useToast, useOverlay, or other composables

**DO NOT load all files at once.** Load only what's relevant to your current task.

## Key Concepts

| Concept           | Description                                                |
| ----------------- | ---------------------------------------------------------- |
| UApp              | Required wrapper component for Toast, Tooltip, overlays    |
| Tailwind Variants | Type-safe styling with slots, variants, compoundVariants   |
| Semantic Colors   | primary, secondary, success, error, warning, info, neutral |
| Reka UI           | Headless component primitives (accessibility built-in)     |

> For headless component primitives (API details, accessibility patterns, asChild): read the **reka-ui** skill

## Quick Reference

```ts
// nuxt.config.ts
export default defineNuxtConfig({
  modules: ['@nuxt/ui'],
  css: ['~/assets/css/main.css']
})
```

```css
/* assets/css/main.css */
@import 'tailwindcss';
@import '@nuxt/ui';
```

```vue
<!-- app.vue - UApp wrapper required -->
<template>
  <UApp>
    <NuxtPage />
  </UApp>
</template>
```

## Resources

- [Nuxt UI Docs](https://ui.nuxt.com)
- [Component Reference](https://ui.nuxt.com/components)
- [Theme Customization](https://ui.nuxt.com/getting-started/theme)

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_Token efficiency: Main skill ~300 tokens, each sub-file ~800-1200 tokens_