Agent Skill Index
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Browse the live directory at agent-skill.co
Maintained by Hailey Cheng (Cheng Hei Lam) · X @haileyhmt · [email protected]
Never heard of "agent skills" before? You're in the right place. This is a community-curated list of simple text files that teach AI assistants (like Claude, Copilot, or Codex) how to do new things on demand, without retraining. Unlike bulk-generated skill repositories, this collection focuses on real-world Agent Skills created and used by actual engineering teams. Compatible with Claude Code, Codex, Antigravity, Gemini CLI, Cursor, GitHub Copilot, Windsurf, and more.
Quick Start (30 seconds)
Step 1: Pick a skill from the directory below (or browse at agent-skill.co)
Step 2: Load it into your AI agent:
- Claude Code:
/skills add <github-url>
- Claude.ai: paste the raw SKILL.md URL in a new conversation
- Codex / Copilot: follow platform docs linked in Using Skills
Step 3: Ask your AI to use it. Just describe what you want in plain English.
That's it. No installation. No configuration. No coding required.
Table of Contents
What Are Agent Skills?
Think of Agent Skills as "how-to guides" for AI assistants. Instead of the AI needing to know everything upfront, skills let it learn new abilities on the fly, like giving someone a recipe card instead of making them memorize an entire cookbook.
Skills are simple text files (called SKILL.md) that teach an AI how to do specific tasks. When you ask the AI to do something, it finds the right skill, reads the instructions, and gets to work.
How It Works
Skills load in three stages:
- Browse: The AI sees a list of available skills (just names and short descriptions)
- Load: When a skill is needed, the AI reads the full instructions
- Use: The AI follows the instructions and accesses any helper files
Why This Matters
- Faster and lighter: The AI only loads what it needs, when it needs it
- Works everywhere: Create a skill once, use it with any compatible AI tool
- Easy to share: Skills are just files you can copy, download, or share on GitHub
Skills are instructions, not code. The AI reads them like a human would read a guide, then follows the steps.
How to Find Skills (Recommended)
SkillsMP Marketplace
It is recommended to use the SkillsMP Marketplace, which automatically indexes all Skill projects on GitHub and organizes them by category, update time, star count, and other tags — making it the easiest way to discover and evaluate skills.
skills.sh Leaderboard by Vercel
You can also use skills.sh — Vercel's leaderboard — to intuitively view the most popular Skills repositories and individual Skill usage statistics.
npx skills CLI Tool
For specific skills, use the npx skills command-line tool to quickly discover, add, and manage skills. For detailed parameters, see vercel-labs/skills.
npx skills find [query] # Search for related skills
npx skills add <owner/repo> # Install skills (supports GitHub shorthand, full URL, local path)
npx skills list # List installed skills
npx skills check # Check for available updates
npx skills update # Upgrade all skills
npx skills remove [skill-name] # Uninstall skills
Compatible Agents
Agent
Documentation
Claude Code
code.claude.com/docs/en/skills
Claude.ai
support.claude.com
Codex (OpenAI)
developers.openai.com
GitHub Copilot
docs.github.com
VS Code
code.visualstudio.com
Antigravity
antigravity.google
Kiro
kiro.dev
Gemini CLI
geminicli.com
Junie
junie.jetbrains.com
Official Skill Directories
AI Platforms & Models
Skills by Anthropic
Official built-in skills for common document types and creative workflows.
- anthropics/docx - Create, edit, and analyze Word documents
- anthropics/doc-coauthoring - Collaborative document editing and co-authoring
- anthropics/pptx - Create, edit, and analyze PowerPoint presentations
- anthropics/xlsx - Create, edit, and analyze Excel spreadsheets
- anthropics/pdf - Extract text, create PDFs, and handle forms
- anthropics/algorithmic-art - Create generative art using p5.js with seeded randomness
- anthropics/canvas-design - Design visual art in PNG and PDF formats
- anthropics/frontend-design - Frontend design and UI/UX development tools
- anthropics/slack-gif-creator - Create animated GIFs optimized for Slack size constraints
- anthropics/theme-factory - Style artifacts with professional themes or generate custom themes
- anthropics/web-artifacts-builder - Build complex claude.ai HTML artifacts with React and Tailwind
- anthropics/mcp-builder - Create MCP servers to integrate external APIs and services
- anthropics/webapp-testing - Test local web applications using Playwright
- anthropics/brand-guidelines - Apply Anthropic's brand colors and typography to artifacts
- anthropics/internal-comms - Write status reports, newsletters, and FAQs
- anthropics/skill-creator - Guide for creating skills that extend Claude's capabilities
- anthropics/template - Basic template for creating new skills
Skills by OpenAI (Codex)
Official curated skills from OpenAI's catalog.
- openai/cloudflare-deploy - Deploy apps to Cloudflare using Workers and Pages
- openai/develop-web-game - Build and test web games iteratively using Playwright
- openai/doc - Read, create, and edit .docx documents with formatting
- openai/gh-address-comments - Address review and issue comments on open GitHub PRs via CLI
- openai/gh-fix-ci - Debug and fix failing GitHub Actions PR checks
- openai/imagegen - Generate and edit images using OpenAI's Image API
- openai/jupyter-notebook - Create clean, reproducible Jupyter notebooks
- openai/linear - Manage issues, projects, and team workflows in Linear
- openai/netlify-deploy - Automate Netlify deployments with CLI support
- openai/notion-knowledge-capture - Convert conversations into structured Notion wiki entries
- openai/pdf - Read, create, and review PDFs with layout integrity
- openai/playwright - Automate real browser interactions for navigation and forms
- openai/sora - Generate, remix, and manage short video clips via Sora API
- openai/speech - Generate spoken audio from text using OpenAI's API
- openai/spreadsheet - Create, edit, analyze, and visualize spreadsheets
- openai/figma - Use the Figma MCP server to fetch design context
- openai/figma-implement-design - Translate Figma designs into production-ready code
- openai/frontend-skill - Create visually strong landing pages and web apps
Skills by Google Gemini
Install via google-gemini/gemini-api-dev.
Skills by Hugging Face
Official skills for ML workflows.