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agent-skills/skills/unocss/references/core-config.md
Jason Woltje f5792c40be feat: Complete fleet — 94 skills across 10+ domains
Pulled ALL skills from 15 source repositories:
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- obra/superpowers: 14 (TDD, debugging, agents, planning)
- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
- vercel-labs/agent-skills: 5 (React, design, Vercel)
- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-16 16:27:42 -06:00

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---
name: unocss-configuration
description: Config file setup and all configuration options for UnoCSS
---
# UnoCSS Configuration
UnoCSS is configured via a dedicated config file in your project root.
## Config File
**Recommended:** Use a dedicated `uno.config.ts` file for best IDE support and HMR.
```ts
// uno.config.ts
import {
defineConfig,
presetAttributify,
presetIcons,
presetTypography,
presetWebFonts,
presetWind3,
transformerDirectives,
transformerVariantGroup
} from 'unocss'
export default defineConfig({
shortcuts: [
// ...
],
theme: {
colors: {
// ...
}
},
presets: [
presetWind3(),
presetAttributify(),
presetIcons(),
presetTypography(),
presetWebFonts({
fonts: {
// ...
},
}),
],
transformers: [
transformerDirectives(),
transformerVariantGroup(),
],
})
```
UnoCSS automatically looks for `uno.config.{js,ts,mjs,mts}` or `unocss.config.{js,ts,mjs,mts}` in the project root.
## Key Configuration Options
### rules
Define CSS utility rules. Later entries have higher priority.
```ts
rules: [
['m-1', { margin: '0.25rem' }],
[/^m-(\d+)$/, ([, d]) => ({ margin: `${d / 4}rem` })],
]
```
### shortcuts
Combine multiple rules into a single shorthand.
```ts
shortcuts: {
'btn': 'py-2 px-4 font-semibold rounded-lg shadow-md',
}
```
### theme
Theme object for design tokens shared between rules.
```ts
theme: {
colors: {
brand: '#942192',
},
breakpoints: {
sm: '640px',
md: '768px',
},
}
```
### presets
Predefined configurations bundling rules, variants, and themes.
```ts
presets: [
presetWind3(),
presetIcons(),
]
```
### transformers
Transform source code to support special syntax.
```ts
transformers: [
transformerDirectives(),
transformerVariantGroup(),
]
```
### variants
Preprocess selectors with ability to rewrite CSS output.
### extractors
Handle source files and extract utility class names.
### preflights
Inject raw CSS globally.
### layers
Control the order of CSS layers. Default is `0`.
```ts
layers: {
'components': -1,
'default': 1,
'utilities': 2,
}
```
### safelist
Utilities that are always included in output.
```ts
safelist: ['p-1', 'p-2', 'p-3']
```
### blocklist
Utilities that are always excluded.
```ts
blocklist: ['p-1', /^p-[2-4]$/]
```
### content
Configure where to extract utilities from.
```ts
content: {
pipeline: {
include: [/\.(vue|svelte|tsx|html)($|\?)/],
},
filesystem: ['src/**/*.php'],
}
```
### separators
Variant separator characters. Default: `[':', '-']`
### outputToCssLayers
Output UnoCSS layers as CSS Cascade Layers.
```ts
outputToCssLayers: true
```
## Specifying Config File Location
```ts
// vite.config.ts
import UnoCSS from 'unocss/vite'
export default defineConfig({
plugins: [
UnoCSS({
configFile: '../my-uno.config.ts',
}),
],
})
```
<!--
Source references:
- https://unocss.dev/guide/config-file
- https://unocss.dev/config/
-->