# skill-installer: The "Package Manager" for Installing Skills on Codex

Skill-installer is a system Skill pre-installed by OpenAI alongside Codex, used to install Skills to `$CODEX_HOME/skills` (default path: `~/.codex/skills`) from the official curated/experimental catalog or any GitHub repository path. Based on the official SKILL.md and Codex documentation, this article explains how to use `skill-installer` to list and install Skills, covers script parameters, private repository and download fallback strategies, as well as the boundaries of local testing and plugins distribution.