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How do you install a skill?

Skills tell your agent how to carry out a specific task.

What is a skill?

A skill consists of an instruction file called SKILL.md and optional supporting files. The agent reads these files to carry out a workflow.

What you need first

You need an installed agent such as Claude Code, Codex or Cursor, Node.js 22.20 or later for CLI installation, and the project folder where you will run the command.

Choose a skill

Review the source file, license and any required external tools. Not every skill works directly with every agent.

Check the installation

Run npx skills list in the terminal to see installed skills. You may need to start a new session for the agent to detect the file.

Choose the right command for Claude Code or Codex

Open a record in the skills catalog and select your agent in the installation panel. The command targets the specific skill folder and the GitHub revision listed in the catalog; check the project folder where you will run it. Using the command shown in the record rather than installing from a general repository URL helps match the version you reviewed to the version you install.

Verify the skill after installation

Check that the target agent and skill folder in the installation output are correct. In a new agent session, try a small task suited to the skill. If you see warnings about missing tools, environment variables or permissions, return to SKILL.md and its supporting files; do not expect every skill to use the same dependencies.

Go to skills marketplace

Add to project

In your project folder's terminal

npx skills add 'https://github.com/anthropics/skills/tree/2c5958ecac7cee2b583967a2c4981d0f4a75c579/skills/frontend-design' -a claude-code

Requires Node.js 22.20 or later. The command targets the catalog's pinned revision.

1Run the command in your project folder.
2Confirm the skill and target in the CLI.
3Restart your agent and invoke the skill by name.

This source was created for Claude Code. Other agents may require an external tool or adaptation.

Download repository ZIP

The ZIP includes the entire repository and its supporting files.

Choose the right command for Claude Code or Codex

Verify the skill after installation