Skill Installer

This is meta tooling for Codex itself. It lets you browse and install skills from the curated openai/skills repository or pull them from any other GitHub repo, including private ones. The main workflow is straightforward: list what's available, pick what you want, and it handles the download into your skills directory. It's smart enough to try direct downloads first and fall back to git sparse checkout if authentication is needed. The curated list lives at github.com/openai/skills in the .curated folder, and system skills come preinstalled. You'll need to restart Codex after installing anything new. Honestly, if you're extending Codex regularly, you'll use this constantly.

skills.sh installs: 191
GitHub stars: 476
last updated: Aug 21, 2026

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Install

$ npx -y skills add aiskillstore/marketplace --skill skill-installer --agent claude-code

Installs into .claude/skills of the current project.

Files

Skill Installer

Helps install skills. By default these are from https://github.com/openai/skills/tree/main/skills/.curated, but users can also provide other locations. Experimental skills live in https://github.com/openai/skills/tree/main/skills/.experimental and can be installed the same way.

Use the helper scripts based on the task:

List skills when the user asks what is available, or if the user uses this skill without specifying what to do. Default listing is .curated, but you can pass --path skills/.experimental when they ask about experimental skills.
Install from the curated list when the user provides a skill name.
Install from another repo when the user provides a GitHub repo/path (including private repos).

Install skills with the helper scripts.

Communication

When listing skills, output approximately as follows, depending on the context of the user's request. If they ask about experimental skills, list from .experimental instead of .curated and label the source accordingly: """ Skills from {repo}: