unocss
Instant atomic CSS engine with Tailwind CSS compatibility and flexible preset-based architecture.
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What it does
Superset of Tailwind CSS with un-opinionated core; all utilities provided via presets including Wind3, Wind4, Mini, Icons, Attributify, Typography, and Web Fonts
Supports static and dynamic rules, shortcuts, theming, variants, and CSS layers for fine-grained styling control
Includes transformers for variant grouping, CSS directives (@apply, @screen, theme()), and JSX attributify support
Installation Guide
How to use unocss on Cursor
AI-first code editor with Composer
Prerequisites
Before installing skills in Cursor, ensure your development environment meets these requirements:
- ›Cursor installed and configured on your machine
- ›Node.js 16+ with npm — verify with
node --version - ›Active project directory where you want to add
unocss
Run the install command
Execute the skills CLI command in your project's root directory to begin installation:
Fetches unocss from antfu/skills and configures it for Cursor.
Select Cursor when prompted
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Verify installation
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate unocss. Access via /unocss in your agent's command palette.
Security Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your environment. Always review source, verify the publisher, and test in isolation before production.
Documentation
UnoCSS is an instant atomic CSS engine designed to be flexible and extensible. The core is un-opinionated - all CSS utilities are provided via presets. It's a superset of Tailwind CSS, so you can reuse your Tailwind knowledge for basic syntax usage.
Important: Before writing UnoCSS code, agents should check for uno.config.* or unocss.config.* files in the project root to understand what presets, rules, and shortcuts are available. If the project setup is unclear, avoid using attributify mode and other advanced features - stick to basic class usage.
The skill is based on UnoCSS 66.x, generated at 2026-01-28.
Core
| Topic | Description | Reference |
|---|---|---|
| Configuration | Config file setup and all configuration options | core-config |
| Rules | Static and dynamic rules for generating CSS utilities | core-rules |
| Shortcuts | Combine multiple rules into single shorthands | core-shortcuts |
| Theme | Theming system for colors, breakpoints, and design tokens | core-theme |
| Variants | Apply variations like hover:, dark:, responsive to rules | core-variants |
| Extracting | How UnoCSS extracts utilities from source code | core-extracting |
| Safelist & Blocklist | Force include or exclude specific utilities | core-safelist |
| Layers & Preflights | CSS layer ordering and raw CSS injection | core-layers |
Presets
Main Presets
| Topic | Description | Reference |
|---|---|---|
| Preset Wind3 | Tailwind CSS v3 / Windi CSS compatible preset (most common) | preset-wind3 |
| Preset Wind4 | Tailwind CSS v4 compatible preset with modern CSS features | preset-wind4 |
| Preset Mini | Minimal preset with essential utilities for custom builds | preset-mini |
Feature Presets
| Topic | Description | Reference |
|---|---|---|
| Preset Icons | Pure CSS icons using Iconify with any icon set | preset-icons |
| Preset Attributify | Group utilities in HTML attributes instead of class | preset-attributify |
| Preset Typography | Prose classes for typographic defaults | preset-typography |
| Preset Web Fonts | Easy Google Fonts and other web fonts integration | preset-web-fonts |
| Preset Tagify | Use utilities as HTML tag names | preset-tagify |
| Preset Rem to Px | Convert rem units to px for utilities | preset-rem-to-px |
Transformers
| Topic | Description | Reference |
|---|---|---|
| Variant Group | Shorthand for grouping utilities with common prefixes | transformer-variant-group |
| Directives | CSS directives: @apply, @screen, theme(), icon() | transformer-directives |
| Compile Class | Compile multiple classes into one hashed class | transformer-compile-class |
| Attributify JSX | Support valueless attributify in JSX/TSX | transformer-attributify-jsx |
Integrations
| Topic | Description | Reference |
|---|---|---|
| Vite Integration | Setting up UnoCSS with Vite and framework-specific tips | integrations-vite |
| Nuxt Integration | UnoCSS module for Nuxt applications | integrations-nuxt |
List & Monetize Your Skill
Submit your Claude Code skill and start earning
Use Cases
Task Automation & Efficiency
Automate repetitive workflows and reduce manual effort
Example
Generate reports, summarize documents, draft communications
Save 3-5 hours per week on routine tasks
Knowledge Enhancement
Learn new skills, understand complex topics, get expert guidance
Example
Explain concepts, provide examples, suggest learning resources
Accelerate learning and skill development by 2x
Quality Improvement
Enhance output quality through reviews, suggestions, and refinements
Example
Review drafts, suggest improvements, catch errors
Improve work quality by 30-40% with less effort
Implementation Guide
Prerequisites
- ›Claude Desktop or compatible AI client with skill support
- ›Clear understanding of task or problem to solve
- ›Willingness to iterate and refine outputs
Time Estimate
15-45 minutes depending on use case complexity
Steps
- 1Install skill using provided installation command
- 2Test with simple use case relevant to your work
- 3Evaluate output quality and relevance
- 4Iterate on prompts to improve results
- 5Integrate into regular workflow if valuable
Common Pitfalls
- ⚠Expecting perfect results without iteration
- ⚠Not providing enough context in prompts
- ⚠Using skill for tasks outside its intended scope
- ⚠Accepting outputs without review and validation
Best Practices
✓ Do
- +Start with clear, specific prompts
- +Provide relevant context and constraints
- +Review and refine all outputs before using
- +Iterate to improve output quality
- +Document successful prompt patterns
✗ Don't
- −Don't use without understanding skill limitations
- −Don't skip validation of outputs
- −Don't share sensitive information in prompts
- −Don't expect skill to replace human judgment
💡 Pro Tips
- ★Be specific about desired format and style
- ★Ask for multiple options to choose from
- ★Request explanations to understand reasoning
- ★Combine AI efficiency with human expertise
When to Use This
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
Learning Path
- 1Familiarize yourself with skill capabilities and limitations
- 2Start with low-risk, non-critical tasks
- 3Progress to more complex and valuable use cases
- 4Build expertise through regular use and experimentation
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Reviews
- HHana Torres★★★★★Dec 28, 2024
We added unocss from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
- JJin Haddad★★★★★Dec 28, 2024
unocss fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
- PPratham Ware★★★★★Dec 24, 2024
Useful defaults in unocss — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
- KKabir Srinivasan★★★★★Dec 16, 2024
Solid pick for teams standardizing on skills: unocss is focused, and the summary matches what you get after install.
- HHana Sharma★★★★★Dec 4, 2024
Registry listing for unocss matched our evaluation — installs cleanly and behaves as described in the markdown.
- KKiara Anderson★★★★★Nov 19, 2024
Solid pick for teams standardizing on skills: unocss is focused, and the summary matches what you get after install.
- KKabir Sanchez★★★★★Nov 19, 2024
unocss has been reliable in day-to-day use. Documentation quality is above average for community skills.
- YYash Thakker★★★★★Nov 15, 2024
unocss is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
- KKabir Ramirez★★★★★Nov 7, 2024
We added unocss from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
- KKaira Kapoor★★★★★Oct 26, 2024
unocss fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
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