# Unocss (agent skill)

> Unocss is an agent skill (a SKILL.md file) from antfu/skills. UnoCSS instant atomic CSS engine, superset of Tailwind CSS. It works with Claude Code and has 5,943 GitHub stars across a repository of 4 listed skills. Install it by copying the skill folder into your agent's skills directory.

UnoCSS instant atomic CSS engine, superset of Tailwind CSS. Use when configuring UnoCSS, writing utility rules, shortcuts, or working with presets like Wind, Icons, Attributify. 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.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/antfu/skills |
| Skill path | skills/unocss/SKILL.md |
| Skill name | unocss |
| GitHub stars | 5,943 |
| Installs on skills.sh | not listed |
| License | MIT |
| Skills in repo | 4 |
| Plugin marketplace | no |
| Official | no |
| Works with | Claude Code |
| Category | Design & frontend |
| Last commit | Sep 30, 2026 |

## When it triggers

- Use when configuring UnoCSS, writing utility rules, shortcuts, or working with presets like Wind, Icons, Attributify.

## Add this skill

### Claude Code

```sh
git clone --depth 1 https://github.com/antfu/skills.git
cp -r skills/skills/unocss ~/.claude/skills/unocss   # personal, or .claude/skills in a project
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/antfu/skills.git
cp -r skills/skills/unocss .agents/skills/unocss   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/antfu/skills.git
cp -r skills/skills/unocss .cursor/skills/unocss   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

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Canonical page: https://appsgit.com/skills/antfu-unocss
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