Codex Claude Skill — Development skill for Claude Code

🤖 Codex Review Skill for Claude Code

Enable proposer-checker-maker-checker workflows by integrating OpenAI's Codex CLI as a review agent within Claude Code sessions.

[](https://opensource.org/licenses/MIT) [](https://github.com/adampaulwalker/codex-claude-skill)

🎯 What This Does

This skill lets you seamlessly invoke **OpenAI Codex** to review code changes directly from your **Claude Code** session - no more copy/pasting between terminals!

**Perfect for:** Independent code reviews, catching bugs before deployment, second opinions on implementation approaches.

✨ Key Features

• 🔄 Seamless Integration - Stay in one terminal tab, no context switching
• 🔍 Comprehensive Reviews - Get detailed feedback on uncommitted changes, specific files, or implementation plans
• ⚡ Fast Workflow - Type /codex and get instant reviews
• 📊 Detailed Reports - Production-ready assessments with before/after comparisons
• 🎯 Smart Triggers - Auto-activates on "review", "check", "validate", "codex"

🖼️ See It In Action

1. Skill Autocomplete

 *The `/codex` command appears in Claude Code's autocomplete with a clear description*

2. Skill Activation

 *The skill activates seamlessly - Claude hands off to Codex for review*

3. Detailed Review Results

 *Get production-ready assessments with before/after comparisons and actionable next steps*

📦 Installation

Prerequisites

1. **Install Codex CLI:**

   brew install codex-cli
   # OR download from https://codex.storage.googleapis.com

2. **Configure OpenAI API key:**

   codex login

3. **Have Claude Code installed:**

   brew install claude-code