Agent Skill Index

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🌐 Browse the live directory at agent-skill.co

Maintained by Hailey Cheng (Cheng Hei Lam) · X @haileyhmt · haileycheng@proton.me

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.

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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.

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Table of Contents

• What Are Agent Skills?
• How to Find Skills (Recommended)
• Compatible Agents
• Official Skill Directories
  • AI Platforms & Models
  • Cloud & Infrastructure
  • Developer Tools & Frameworks
  • Google Ecosystem
  • Business, Productivity & Marketing
  • Security & Web Intelligence
• Community Skills
  • Vector Databases
  • Marketing
  • Productivity and Collaboration
  • Development and Testing
  • Context Engineering
• Skill Quality Standards
• Using Skills
• Creating Skills
• Official Tutorials and Guides
• Trends & Capabilities (2026)
• Frequently Asked Questions
• Contributing
• Contact
• License

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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:

1. Browse: The AI sees a list of available skills (just names and short descriptions)
2. Load: When a skill is needed, the AI reads the full instructions
3. 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.

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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

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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

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Official Skill Directories

AI Platforms & Models

Skills by Anthropic

Official built-in