One-liner script that:
- Verifies/installs Node.js >= 18, git, codex CLI
- Adds 'openai-codex' marketplace (github.com/openai/codex-plugin-cc)
- Installs/updates 'codex@openai-codex' plugin
- Verifies result via 'claude plugin list'
Re-runs are safe — auto-detects what is already installed and only fills
gaps or pulls newer plugin versions.
Three platforms covered: Linux (apt/dnf/yum), macOS (brew),
Windows (winget) via .sh and .ps1 wrappers + CMD entry-point.
Plugin commands inside Claude Code:
/codex:review, /codex:adversarial-review, /codex:rescue,
/codex:status, /codex:result, /codex:cancel
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>