reka-ui

name	reka-ui
description	Use when building with Reka UI (headless Vue components) - provides component API, accessibility patterns, composition (asChild), controlled/uncontrolled state, virtualization, and styling integration. Formerly Radix Vue.
license	MIT

Reka UI

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

Current version: v2.7.0 (December 2025)

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.)

New guides (see reka-ui.com): Controlled State, Inject Context, Virtualization, Migration

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
Virtualization	Optimize large lists (Combobox, Listbox, Tree) with virtual scrolling
Context Injection	Access component context from child components

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>

Recent Updates (v2.5.0-v2.7.0)

• New composables exposed: useLocale, useDirection (v2.6.0)
• Select: Added disableOutsidePointerEvents prop to Content
• Toast: Added disableSwipe prop for swipe control
• DatePicker: Added closeOnSelect property
• ContextMenu: Added pressOpenDelay for long-press configuration
• Virtualization: estimateSize now accepts function for Listbox/Tree (v2.7.0); supported in Combobox, Listbox, Tree

Resources

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

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Token efficiency: ~350 tokens base, components.md index ~100 tokens, per-component ~50-150 tokens