AI Agent Skills Hub
Browse, copy, and install open-source AI agent skills, MCP servers, and system prompts for Claude Code, Antigravity, and Cursor.
Quick answer:AI Agent Skills are pre-packaged instruction sets, workflow rules, or MCP server definitions that give AI coding assistants (Claude, Cursor, Antigravity) specialized expertise in a domain. Browse this directory to find, copy, and install community-built skills covering testing, security, documentation, APIs, and more — all open-source and free.
Azam Sharieff· Finance & Tools Reviewer
Last reviewed:
A Searchable Index of Open-Source Agent Skills
AI coding agents are only as good as the instructions you give them. A skill is a packaged set of instructions, workflow rules or tool definitions that you drop into your agent so it stops guessing and starts working the way a specialist in that domain would. The problem is that these skills are scattered across hundreds of individual GitHub repositories with no common index.
The AI Agent Skills Hub pulls them into one browsable place. The Curated Picks tab holds a hand-checked shortlist grouped by ecosystem - Claude MCP, Antigravity, and Cursor or Aider - each with its install command or repository link ready to copy. The Full Library tab loads a catalog of over a thousand community skills straight from GitHub, with search across names, descriptions, categories and tags.
It is built for the people actually shipping with these tools: developers running Claude Code in a terminal, teams standardising agent behaviour across a repo, and anyone who wants to see what already exists before writing yet another custom prompt from scratch.
Why a Directory Beats Hunting Through GitHub
Finding a good agent skill by searching GitHub directly is painful. Repository names rarely describe what the skill does, the useful files are buried several folders deep, and half of what you find is abandoned or was written for a different agent entirely.
A directory fixes the discovery problem. Every entry here shows you the skill name, its domain and its tags before you click anything, so you can rule out the wrong ones in seconds. Expanding a row in the full library reveals the description and the exact file path inside the source repository, which means you know precisely what you are about to open.
Getting the Most Out of the Directory
Start with the search box rather than scrolling. It matches against names, descriptions, categories and tags at the same time, so a broad term like testing, security or documentation will surface far more than you would find by browsing page by page.
If you are working inside a specific ecosystem, switch to Curated Picks and use the filter chips to show only Claude MCP, Antigravity or Cursor and Aider skills. That avoids the common mistake of copying an MCP server definition into a tool that expects plain markdown rules.
When something looks right, copy the install command or repository link from the card, then open the repository and read the skill before you wire it in. Skills that describe a narrow, well-defined job usually outperform sprawling ones that try to cover an entire discipline in a single file.
What This Directory Does Not Do
This is an index, not a host and not an app store. Nothing is installed from this page, no code is executed here, and the skills themselves are written and maintained by third parties who can change or remove them at any time. Because the full library is fetched live from GitHub, entries can appear or disappear without any change on our side.
That also means quality is not guaranteed or vetted by us. A skill runs with whatever permissions your agent has, which can include reading and editing your files or running shell commands. Read the source first, prefer skills with clear documentation and recent activity, and be especially careful with anything that asks for credentials or network access.