# Codex Plugin for Claude Code — OpenAI Cross-Review

> Official OpenAI plugin that adds Codex code review and task delegation inside Claude Code. Get adversarial reviews, rescue debugging, and multi-model collaboration.

## Install

Save the content below to `.claude/skills/` or append to your `CLAUDE.md`:

## Quick Use

```bash
# Install in Claude Code
/plugin marketplace add openai/codex-plugin-cc
/plugin install codex@openai-codex
/reload-plugins
/codex:setup
```

## What is codex-plugin-cc?

codex-plugin-cc is an official OpenAI plugin that lets developers call Codex directly from within Claude Code sessions. It provides code review, adversarial critique, and background task delegation — giving developers a "second opinion" from Codex without leaving their Claude Code workflow. This is a landmark in multi-model AI collaboration: OpenAI embedding itself into Anthropic's developer ecosystem.

**Answer-Ready**: codex-plugin-cc is OpenAI's official plugin for Claude Code. Adds Codex code review, adversarial critique, and background task rescue inside Claude Code. Multi-model collaboration — get a second opinion from Codex. 12.7k+ GitHub stars. Apache 2.0.

**Best for**: Developers wanting multi-model code review and cross-checking. **Works with**: Claude Code (requires Node.js 18.18+ and ChatGPT subscription or API key). **Setup time**: Under 3 minutes.

## Core Commands

### 1. /codex:review — Standard Code Review

```
/codex:review
```
Sends current code to Codex for read-only review. Returns structured feedback on bugs, style, and improvements.

### 2. /codex:adversarial-review — Aggressive Critique

```
/codex:adversarial-review
```
Codex actively challenges design decisions, probes weaknesses, and looks for edge cases your primary agent missed. The most valuable command for production code.

### 3. /codex:rescue — Background Task Delegation

```
/codex:rescue --background
```
Hand off a stuck bug or complex investigation to Codex. Runs in the background while you continue working with Claude.

### 4. Job Management

```
/codex:status    # Check background job progress
/codex:result    # Get completed job results
/codex:cancel    # Cancel running job
```

## Why This Matters

| Aspect | Details |
|--------|---------|
| Multi-model | Claude + Codex reviewing same code catches more bugs |
| Adversarial | Second model challenges assumptions the first model made |
| Background | Delegate tasks without blocking your workflow |
| Official | OpenAI-published, actively maintained |

## Prerequisites

- Node.js 18.18+
- ChatGPT subscription (including free tier) OR OpenAI API key
- Claude Code with plugin support

## FAQ

**Q: Does it cost extra?**
A: Uses your existing ChatGPT subscription or OpenAI API credits. No additional plugin fee.

**Q: Can Codex modify my files?**
A: `/codex:review` and `/codex:adversarial-review` are read-only. `/codex:rescue` can propose changes.

**Q: Is this really from OpenAI?**
A: Yes, published under the official `openai` GitHub org. Apache 2.0 licensed.

## Source & Thanks

> Created by [OpenAI](https://github.com/openai). Licensed under Apache 2.0.
>
> [openai/codex-plugin-cc](https://github.com/openai/codex-plugin-cc) — 12.7k+ stars

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## Quick Start

```bash
/plugin marketplace add openai/codex-plugin-cc
/codex:setup
```

Call OpenAI Codex for code review directly inside Claude Code.

## What is codex-plugin-cc?

OpenAI's official plugin that lets you call Codex inside Claude Code for code review, adversarial critique, and background tasks. A landmark tool for multi-model collaboration.

**In one sentence**: OpenAI's official Claude Code plugin — Codex code review + adversarial critique + background tasks. A milestone in multi-model collaboration — 12.7k+ stars.

**For**: Developers who want multi-model cross-review.

## Core Commands

### 1. /codex:review — standard code review
### 2. /codex:adversarial-review — adversarial critique
### 3. /codex:rescue — background task delegation

## FAQ

**Q: Extra cost?**
A: Uses your existing ChatGPT subscription or API credits — no plugin fee.

**Q: Really OpenAI-made?**
A: Yes — published under the openai GitHub org, Apache 2.0.

## Source & Thanks

> [openai/codex-plugin-cc](https://github.com/openai/codex-plugin-cc) — 12.7k+ stars, Apache 2.0

---
Source: https://tokrepo.com/en/workflows/codex-plugin-claude-code-openai-cross-review-208207e5
Author: Agent Toolkit