Agent skill

skill-installer

Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos).

View SKILL.md on GitHub Repository
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Install this agent skill to your Project

npx add-skill https://github.com/bamecho/my-claude-skills/tree/main/skills/.system/skill-installer

Metadata

Additional technical details for this skill

short description
Install curated skills from openai/skills or other repos

SKILL.md

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.

Use the helper scripts based on the task:

  • List curated skills when the user asks what is available, or if the user uses this skill without specifying what to do.
  • 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 curated skills, output approximately as follows, depending on the context of the user's request: """ Skills from {repo}:

  1. skill-1
  2. skill-2 (already installed)
  3. ... Which ones would you like installed? """

After installing a skill, tell the user: "Restart Codex to pick up new skills."

Scripts

All of these scripts use network, so when running in the sandbox, request escalation when running them.

  • scripts/list-curated-skills.py (prints curated list with installed annotations)
  • scripts/list-curated-skills.py --format json
  • scripts/install-skill-from-github.py --repo <owner>/<repo> --path <path/to/skill> [<path/to/skill> ...]
  • scripts/install-skill-from-github.py --url https://github.com/<owner>/<repo>/tree/<ref>/<path>

Behavior and Options

  • Defaults to direct download for public GitHub repos.
  • If download fails with auth/permission errors, falls back to git sparse checkout.
  • Aborts if the destination skill directory already exists.
  • Installs into $CODEX_HOME/skills/<skill-name> (defaults to ~/.codex/skills).
  • Multiple --path values install multiple skills in one run, each named from the path basename unless --name is supplied.
  • Options: --ref <ref> (default main), --dest <path>, --method auto|download|git.

Notes

  • Curated listing is fetched from https://github.com/openai/skills/tree/main/skills/.curated via the GitHub API. If it is unavailable, explain the error and exit.
  • Private GitHub repos can be accessed via existing git credentials or optional GITHUB_TOKEN/GH_TOKEN for download.
  • Git fallback tries HTTPS first, then SSH.
  • The skills at https://github.com/openai/skills/tree/main/skills/.system are preinstalled, so no need to help users install those. If they ask, just explain this. If they insist, you can download and overwrite.
  • Installed annotations come from $CODEX_HOME/skills.

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