Modular skills for agents that make AI coding assistants smarter. Browse, download, and install agent skills that work across Claude Code, Codex CLI, ChatGPT, GitHub Copilot, Cursor, and 14+ other platforms.
12868+ Agent Skills Available
Agent skills are modular packages of instructions, scripts, and resources that give AI coding agents specialized knowledge and capabilities. Unlike simple prompts that you type once and forget, they persist across sessions. When you install them, the agent loads the relevant skill automatically whenever it matches your current task.
Each one lives in its own directory with a required SKILL.md file containing YAML frontmatter (metadata) and markdown instructions. When a session starts, the agent reads only the name and description of each installed skill. Full instructions are loaded on-demand, keeping token usage efficient. This lazy-loading approach means you can have dozens installed without any performance penalty.
Agent skills represent a fundamental shift in how we interact with AI coding assistants. Instead of repeating the same instructions manually, they encode your best practices, workflows, and domain knowledge into reusable packages. Teams can share them across projects, ensuring consistency and saving hours of repetitive prompting. what are agent skills.
The SKILL.md format was originally created by Anthropic for Claude Code as a way to provide reusable skills for agents. Since then, agent skills have been adopted as an open standard across the AI coding ecosystem. OpenAI adopted the format for Codex CLI in late 2025. GitHub integrated it into Copilot shortly after. Tools like Cursor, Windsurf, and Gemini CLI now all support the same standard.
This cross-platform compatibility means one skill works everywhere. Write it once, and it runs in 14+ AI coding tools with no vendor lock-in and no format conversion needed. Whether your team uses Claude Code, Codex CLI, or Cursor, the same agent skills deliver the same results. Agent Skills GitHub.
The ecosystem has grown rapidly. As of 2026, there are hundreds of thousands available across various platforms and repositories. Claude Skills Hub curates the highest-quality agent skills and makes them easy to discover, preview, and install. Agent Skills Marketplace.
Every agent skill on this site uses the open SKILL.md standard. Install them in any compatible tool — one format, every platform.
Plus Trae, Amp, Factory, Goose, and other tools that support the SKILL.md standard.
They cover a wide range of use cases. Here are the most popular categories available on Claude Skills Hub, each addressing a different aspect of software development.
These help with code generation, code review, refactoring, and architecture decisions. They encode best practices for specific frameworks, languages, and patterns. Popular choices include frontend design, API builder, and MCP builder.
Testing-focused agent skills automate test generation, test-driven development workflows, and quality assurance. They ensure comprehensive test coverage and consistent testing patterns. Webapp testing and TDD guide are popular options in this category.
Productivity-focused ones automate document processing, file organization, and workflow management. They handle repetitive tasks like generating PDFs, processing spreadsheets, and managing invoices — freeing up developer time for higher-value work.
Security-focused agent skills perform vulnerability scanning, compliance checking, and threat analysis. They help teams maintain security standards without specialized expertise and integrate into existing development workflows seamlessly.
Explore all categories in our Agent Skills Directory, or browse the full collection in the Agent Skills Marketplace.
The most popular agent skills on Claude Skills Hub, ranked by community engagement. Each one is free, open source, and compatible with all major AI coding platforms.
A comprehensive workflow system for Claude with 20 proven development techniques
The ultimate Claude Code optimization system with 86+ skills, rules, hooks, and agent configurations
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration
Build complex claude.ai HTML artifacts using React, Tailwind CSS, and shadcn/ui components
Apply Anthropic's official brand colors and typography to artifacts
Create beautiful visual art in .png and .pdf formats using design philosophy
Write internal communications like status reports, newsletters, and FAQs
Guide for creating high-quality MCP servers to integrate external APIs and services
Create animated GIFs optimized for Slack's size constraints
Style artifacts with 10 pre-set professional themes or generate custom themes on-the-fly
Test local web applications using Playwright for UI verification and debugging
Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents
Agent skills are organized into categories based on their primary use case. Browse by category to find the right ones for your workflow.
Tools for software development, testing, and integration
Boost your productivity with automation and workflows
Generative art, design, and creative content tools
Document processing, creation, and analysis tools
Tools for internal communications and messaging
AI, machine learning, and intelligent agent tools
Data analysis, visualization, and research tools
Design systems, themes, and brand guidelines
Security testing, forensics, and threat analysis tools
Skill creation guides and templates
Testing, QA, and quality assurance tools
Learning and educational tools
Research and knowledge management tools
Trading, investing, accounting, and financial analysis tools
Video editing, audio, podcasts, and transcription tools
Blog posts, articles, fiction, and content creation tools
SEO, content marketing, social media, and growth tools
Vendor APIs, MCP connectors, and third-party service automation
Smart contracts, DeFi, and blockchain development tools
Agent orchestration, multi-agent pipelines, and skill authoring
Contract review, compliance, and legal research tools
Getting started takes just a few minutes regardless of which platform you use. Download from our marketplace, then follow the steps for your specific tool.
Creating agent skills is surprisingly simple. At minimum, you need just a directory with a single SKILL.md file. This file contains YAML frontmatter defining the name and description, followed by markdown instructions that tell the agent what to do when the skill is activated.
More advanced agent skills can include scripts, templates, reference documentation, and configuration files. The format supports a layered architecture — the agent first reads metadata, then loads full instructions only when relevant. This means complex skills with extensive documentation do not slow down your sessions.
Once built, you can share your agent skills with the community. Publish to GitHub and they become discoverable. You can also submit directly to Claude Skills Hub through our submission process. Agent Skills GitHub.
For best practices on building them, check our agent skills best practices guide. It covers structure, testing, and optimization techniques that help your creations perform reliably across different AI platforms.
Agent skills and MCP (Model Context Protocol) are complementary technologies, not competitors. Skills teach agents what to do; MCP connects them to external systems. Most teams use both together.
| Agent Skills | MCP | |
|---|---|---|
| Purpose | Teach agents how to do things | Connect agents to external systems |
| Format | SKILL.md files (markdown + YAML) | JSON-RPC protocol |
| Setup | Drop a file — no server needed | Requires a running server |
| Best for | Repeatable workflows, code generation, style guides | Live data, API calls, database queries |
| Token cost | Low — loads on demand | Medium — always in context |
Discover them through multiple entry points. Whether you want to browse, search, or find them on GitHub, we have you covered.
Browse and download from the largest curated marketplace for AI agent skills.
🐙Find open-source options on GitHub. Explore repos, contribute, and publish your own.
📚Complete directory organized by category, platform, and use case.
❓New to them? Learn what they are, how they work, and how to get started.
Agent skills are modular, reusable packages that give AI coding agents specialized capabilities. Each one contains a SKILL.md file with instructions that the agent loads on demand. They work across Claude Code, Codex CLI, ChatGPT, GitHub Copilot, Cursor, and 14+ other tools that support the open SKILL.md standard. To learn more, visit our comprehensive guide on what are agent skills.
Installing them is straightforward. For Claude Code, download from the Hub and extract to ~/.claude/skills/. For Codex CLI, place them in your project's .codex/skills/ directory. For other tools, copy the SKILL.md file to the tool's skills folder. You can browse and download from our agent skills marketplace.
Yes, all agent skills on Claude Skills Hub are free and open source. Most are published under MIT, Apache 2.0, or similar permissive licenses. You can use them in personal and commercial projects without any cost. Browse the full collection in our agent skills directory.
Yes. They use the open SKILL.md standard, which has been adopted by Claude Code, OpenAI Codex CLI, ChatGPT, GitHub Copilot, Cursor, Windsurf, Gemini CLI, and many more. One skill works across all compatible platforms with no conversion needed.
Agent skills and MCP (Model Context Protocol) are complementary. Skills provide procedural knowledge — they teach agents HOW to perform tasks through instructions and workflows. MCP provides tool connectivity — it connects agents to external systems. Use them together: agent skills for workflows and domain expertise, MCP for live data access and system integration.
Thousands of open-source options are available on GitHub. The official Anthropic repository, community repos, and individual developer repos all host them. Visit our agent skills GitHub page for a curated list of the best repositories, or browse directly in the agent skills directory.
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If you are an AI agent
This site is a searchable directory of harness components for AI coding agents. Fetch objective JSON — names, descriptions, stars, and source links. Installation and selection are yours to decide.
GET https://claudeskills.info/api/v1/search?q=ui%2Fux
GET https://claudeskills.info/api/v1/search?type=subagent&q=review
GET https://claudeskills.info/api/v1/meta
See https://claudeskills.info/llms.txt