Anthony Fu's Skills is a curated collection of instructions that guide coding agents in using particular tools, frameworks, and development practices. It is mainly aimed at projects using technologies such as Vite, Nuxt, Vue, TypeScript, and related JavaScript tooling. The catalogue entries are skills and instructions from this collection.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add antfu/skills --skill unocssgit clone --depth 1 https://github.com/antfu/skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/antfu/skills/unocss)<a href="https://agentmods.dev/skills/antfu/skills/unocss"><img src="https://agentmods.dev/badge/skills/antfu/skills/unocss/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/antfu/skills/unocss"><img src="https://agentmods.dev/badge/skills/antfu/skills/unocss.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00043 | $0.01031 |
| Opus 5.5 | $0.00017 | $0.00412 |
| Sonnet 5.5 | $0.00009 | $0.00206 |
| Haiku 4.5 | $0.00004 | $0.00103 |
Grade A, and why
unocss scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
100% identical to unocss — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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 v66.10.5, generated at 2026-09-25.
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 |
| Processors | Transform generated CSS layers (incl. Lightning CSS) | core-processors |
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 |
What ships with it
25 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- GENERATION.md 136 B
- references/core-config.md 3.1 KB
- references/core-extracting.md 2.1 KB
- references/core-layers.md 1.6 KB
- references/core-processors.md 2.7 KB
- references/core-rules.md 3.6 KB
- references/core-safelist.md 4.0 KB
- references/core-shortcuts.md 1.9 KB
- references/core-theme.md 3.0 KB
- references/core-variants.md 3.2 KB
- references/integrations-nuxt.md 3.3 KB
- references/integrations-vite.md 4.4 KB
- references/preset-attributify.md 2.5 KB
- references/preset-icons.md 3.7 KB
- references/preset-mini.md 2.7 KB
- references/preset-rem-to-px.md 1.6 KB
- references/preset-tagify.md 2.0 KB
- references/preset-typography.md 1.7 KB
- references/preset-web-fonts.md 2.4 KB
- references/preset-wind3.md 3.3 KB
- references/preset-wind4.md 4.6 KB
- references/transformer-attributify-jsx.md 2.5 KB
- references/transformer-compile-class.md 2.2 KB
- references/transformer-directives.md 2.5 KB
- references/transformer-variant-group.md 1.8 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed · +1 lines ccf4a1e26e1c
- 2mo ago First seen · 65 lines · 43 tokens per session scan A 8888703f85d6
unocss is a skill published in the GitHub repository antfu/skills (6,043 stars, last pushed yesterday), licensed MIT. It adds 43 tokens to every session and 1,031 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to unocss, differing in 5 lines, and is treated as a copy.
unocss compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| unocssantfu/skills | Skill | 6.0k | yesterday | MIT | A | 43 | Claude Code, Codex |
| playgroundanthropics/claude-plugins-official | Skill | 46k | yesterday | Apache-2.0 | A | 53 | Claude Code |
| frontend-designanthropics/claude-plugins-official | Skill | 46k | yesterday | Apache-2.0 | A | 40 | Claude Code |
| fixing-motion-performanceibelick/ui-skills | Skill | 11k | yesterday | MIT | A | 45 | Claude Code, Codex |
| design-artifactplannotator/effective-html | Skill | 4.0k | 6d ago | MIT | A | 72 | Claude Code, Codex |
| baseline-uiibelick/ui-skills | Skill | 11k | yesterday | MIT | A | 34 | Claude Code, Codex |
| html-prototypeplannotator/effective-html | Skill | 4.0k | 6d ago | MIT | A | 87 | Claude Code, Codex |