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The Codex Plugin for Claude Code brings OpenAI’s Codex directly into your Claude Code workflow. Without leaving your editor, you can run thorough code reviews, pressure-test your design decisions, or hand off complex debugging and implementation tasks to Codex — then pick up the results right where you left off.

Quick Start

Install the plugin and run your first Codex review in minutes.

Commands

Explore every slash command available in the plugin.

Configuration

Set your default model, reasoning effort, and review gate.

Guides

Common workflows for reviews, rescues, and background jobs.

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What you can do

Code Review

Run a read-only Codex review against your uncommitted changes or any base branch.

Adversarial Review

Challenge your implementation: pressure-test assumptions, tradeoffs, and design choices.

Rescue & Delegate

Hand bugs, investigations, or implementation tasks to Codex and let it work in the background.

Job Management

Monitor background jobs, retrieve results, and cancel running tasks.

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Requirements

  • ChatGPT subscription (including Free) or an OpenAI API key — usage counts toward your Codex usage limits
  • Node.js 18.18 or later
  • Claude Code with plugin support
If you already use the Codex CLI on this machine, the plugin picks up your existing authentication and configuration automatically. No separate account setup is needed.