What is skills.sh?

skills.sh is a marketplace and CLI for discovering and installing skills for your AI coding assistant. Think of it like an app store, but instead of apps for your phone, it’s reusable instruction sets for tools like Claude Code.

It was built by Vercel Labs in 2025 as part of the open agent skills ecosystem. The idea is that skills should be portable. A skill you install for Claude Code should also work in Cursor or Codex, without having to rewrite it for each tool.

You can install skills from the command line with npx skills add, which pulls them from GitHub repositories. For example:

npx skills add vercel-labs/agent-skills

This downloads a set of skills and puts them in the right place for your AI coding assistant to pick up automatically.

The whole system is built around a standard called SKILL.md. Each skill is just a folder with a SKILL.md file that contains instructions for the AI. The format includes a name, a description, and detailed instructions about when and how the skill should be used. Because it’s an open standard, anyone can create and share their own skills.

Having a shared ecosystem where people can build and contribute skills is a pretty exciting development for agentic AI workflows.