codex-cli
Installation
SKILL.md
Codex CLI Skill
⚠️ Environment Notice
| Environment | Git Repo | Command Format |
|---|---|---|
| Interactive terminal | Any | codex "prompt" |
| Claude Code / CI | ✅ Yes | codex exec -s read-only "prompt" |
| Claude Code / CI | ❌ No | codex exec --skip-git-repo-check -s read-only "prompt" |
Non-TTY environments (Claude Code, CI pipelines, scripts) require codex exec.
Git Repository Detection
Before executing Codex commands, check if the working directory is a Git repository:
# Check Git repository status
git rev-parse --git-dir 2>/dev/null && echo "Git repo: YES" || echo "Git repo: NO"