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.
Borrowing it
Nothing to install: this file belongs to antfu/skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/antfu/skills/main/AGENTS.mdgit 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/instructions/antfu/skills/agents-md)<a href="https://agentmods.dev/instructions/antfu/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/antfu/skills/agents-md/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/instructions/antfu/skills/agents-md"><img src="https://agentmods.dev/badge/instructions/antfu/skills/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01476 | $0.01476 |
| Opus 5.5 | $0.00590 | $0.00590 |
| Sonnet 5.5 | $0.00295 | $0.00295 |
| Haiku 4.5 | $0.00148 | $0.00148 |
Grade A, and why
skills AGENTS.md 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.
Copies of this mod
2 near-identical copies found in the catalogue:
- skills AGENTS.md — 91% identical, 99 lines differ
- skills AGENTS.md — 88% identical, 69 lines differ
How it starts
The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skills Generator
Generate Agent Skills from project documentation.
PLEASE STRICTLY FOLLOW THE BEST PRACTICES FOR SKILL: https://platform.claude.com/docs/en/agents-and-tools/agent-skills/best-practices
- Focus on agents capabilities and practical usage patterns.
- Ignore user-facing guides, introductions, get-started, install guides, etc.
- Ignore content that LLM agents already confident about in their training data.
- Make the skill as concise as possible, avoid creating too many references.
Skill Source Types
There are two types of skill sources. The project lists are defined in meta.ts:
Type 1: Generated Skills (sources/)
For OSS projects without existing skills. We clone the repo as a submodule and generate skills from their documentation.
- Projects: Vue, Nuxt, Vite, UnoCSS
- Workflow: Read docs → Understand → Generate skills
- Source:
sources/{project}/docs/
Type 2: Hand-written Skills
For skills that are written by Anthony Fu with his preferences, experience, tastes and best practices.
You don't need to do anything about them unless being asked.
Repository Structure
.
├── meta.ts # Project metadata (repos & URLs)
├── instructions/ # Instructions for generating skills
│ └── {project}.md # Instructions for generating skills for {project}
│
├── sources/ # Type 1: OSS repos (generate from docs)
│ └── {project}/
│ └── docs/ # Read documentation from here
│
└── skills/ # Output directory
└── {output-name}/
├── SKILL.md # Index of all skills
├── GENERATION.md # Tracking metadata (for generated skills)
└── references/
└── *.md # Individual skill files
Important: For Type 1 (generated), the skills/{project}/ name must match sources/{project}/.
Workflows
For Generated Skills
Adding a New Project
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 · -46 lines · -443 tokens per session 687b6401fa1c
- 2mo ago First seen · 254 lines · 1,919 tokens per session scan A 874b156c9a0f
skills AGENTS.md is an instructions file published in the GitHub repository antfu/skills (6,043 stars, last pushed yesterday), licensed MIT. It adds 1,476 tokens to every session, about $0.0059 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
skills AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| skills AGENTS.mdantfu/skills | Instructions file | 6.0k | yesterday | MIT | A | 1,476 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |