Codex

Using OpenSkill with OpenAI Codex

Setup

OpenAI Codex is OpenAI's coding agent. OpenSkill detects Codex automatically when the ~/.codex/ directory exists.

terminal
# Install a skill for Codex
$ osk install code-review -t codex

How It Works

When you install a skill for Codex, OpenSkill writes the skill content to a SKILL.md file in Codex's skills directory. Codex uses these files to enhance its understanding and capabilities.

Skill Location

ScopePath
Global~/.codex/skills/<skill-name>/SKILL.md
Project.codex/skills/<skill-name>/SKILL.md
Skills written for other agents can be converted to Codex format using osk convert my-skill --from claude --to codex.