Reka UI

Unstyled, accessible Vue 3 component primitives. WAI-ARIA compliant. Previously Radix Vue.

When to Use

• Building headless/unstyled components from scratch
• Need WAI-ARIA compliant components
• Using Nuxt UI, shadcn-vue, or other Reka-based libraries
• Implementing accessible forms, dialogs, menus, popovers

For Vue patterns: use vue skill

Available Guidance

File	Topics
references/components.md	Component index by category (Form, Date, Overlay, Menu, Data, etc.)
components/*.md	Per-component details (dialog.md, select.md, etc.)

Usage Pattern

Load based on context:

• Component index → references/components.md
• Specific component → components/dialog.md, components/select.md, etc.
• For styled Nuxt components built on Reka UI → use nuxt-ui skill

Key Concepts

Concept	Description
asChild	Render as child element instead of wrapper, merging props/behavior
Controlled/Uncontrolled	Use v-model for controlled, default* props for uncontrolled
Parts	Components split into Root, Trigger, Content, Portal, etc.
forceMount	Keep element in DOM for animation libraries

Installation

// nuxt.config.ts (auto-imports all components)
export default defineNuxtConfig({
  modules: ['reka-ui/nuxt']
})

import { RekaResolver } from 'reka-ui/resolver'
// vite.config.ts (with auto-import resolver)
import Components from 'unplugin-vue-components/vite'

export default defineConfig({
  plugins: [
    vue(),
    Components({ resolvers: [RekaResolver()] })
  ]
})

Basic Patterns

<!-- Dialog with controlled state -->
<script setup>
import { DialogRoot, DialogTrigger, DialogPortal, DialogOverlay, DialogContent, DialogTitle, DialogDescription, DialogClose } from 'reka-ui'
const open = ref(false)
</script>

<template>
  <DialogRoot v-model:open="open">
    <DialogTrigger>Open</DialogTrigger>
    <DialogPortal>
      <DialogOverlay class="fixed inset-0 bg-black/50" />
      <DialogContent class="fixed left-1/2 top-1/2 -translate-x-1/2 -translate-y-1/2 bg-white p-6 rounded">
        <DialogTitle>Title</DialogTitle>
        <DialogDescription>Description</DialogDescription>
        <DialogClose>Close</DialogClose>
      </DialogContent>
    </DialogPortal>
  </DialogRoot>
</template>

<!-- Select with uncontrolled default -->
<SelectRoot default-value="apple">
  <SelectTrigger>
    <SelectValue placeholder="Pick fruit" />
  </SelectTrigger>
  <SelectPortal>
    <SelectContent>
      <SelectViewport>
        <SelectItem value="apple"><SelectItemText>Apple</SelectItemText></SelectItem>
        <SelectItem value="banana"><SelectItemText>Banana</SelectItemText></SelectItem>
      </SelectViewport>
    </SelectContent>
  </SelectPortal>
</SelectRoot>

<!-- asChild for custom trigger element -->
<DialogTrigger as-child>
  <button class="my-custom-button">Open</button>
</DialogTrigger>

Resources

• Reka UI Docs
• GitHub
• Nuxt UI (styled Reka components)
• shadcn-vue (styled Reka components)

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Token efficiency: ~300 tokens base, components.md index ~100 tokens, per-component ~50-150 tokens