codex-plugin-cc
Use Codex from Claude Code to review code or delegate tasks.
The codex-plugin-cc is a Claude Code plugin that enables developers to invoke OpenAI Codex directly from within Claude Code sessions for code reviews and task delegation. It provides slash commands to request read-only code reviews, adversarial design critiques, and background task handoffs to Codex without leaving the Claude Code environment. The plugin wraps the Codex CLI and app server, using your existing Codex authentication and configuration. Developers can use it to get second opinions on code changes, pressure-test architectural decisions, or delegate long-running investigations to Codex while continuing work in Claude Code.
Key Features
Use Cases
- 01Running pre-commit code reviews on uncommitted changes without leaving Claude Code
- 02Challenging design decisions with adversarial reviews focused on failure modes and alternative approaches
- 03Delegating flaky test investigations or CI failures to Codex as background tasks
- 04Transferring debugging conversations from Claude Code to Codex for continued work
- 05Pressure-testing security-critical changes around auth, race conditions, or data integrity
- 06Getting lightweight quick fixes using smaller Codex models like gpt-5.4-mini or spark
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codex-plugin-cc — FAQ
What is codex-plugin-cc?+
Codex-plugin-cc is a Claude Code plugin that integrates OpenAI Codex into Claude Code, allowing developers to run code reviews, delegate tasks to Codex, and manage background jobs through slash commands without switching tools.
How do I install the Codex plugin in Claude Code?+
Add the marketplace with '/plugin marketplace add openai/codex-plugin-cc', install with '/plugin install codex@openai-codex', reload with '/reload-plugins', then run '/codex:setup' to verify. You'll need Node.js 18.18 or later and the Codex CLI installed globally.
Which AI clients work with this plugin?+
This plugin is specifically designed for Claude Code. It integrates with the Codex CLI and app server on your local machine, so you also need Codex installed and authenticated.
Do I need a ChatGPT subscription or OpenAI API key?+
Yes. You need either a ChatGPT subscription (including the free tier) or an OpenAI API key to authenticate with Codex. Usage counts toward your Codex usage limits.
Is the codex-plugin-cc free to use?+
The plugin itself is free and open source, but running Codex commands will consume usage from your ChatGPT subscription or OpenAI API quota according to Codex pricing.
Can I use my existing Codex configuration and authentication?+
Yes. The plugin uses your local Codex CLI installation, so it automatically picks up your existing authentication, configuration files (~/.codex/config.toml and .codex/config.toml), and project settings.
How do I install codex-plugin-cc?+
Open the source repository on GitHub and follow its README. codex-plugin-cc is a plugin — MCP Agents Market links you directly to the official repo.
Is codex-plugin-cc free?+
codex-plugin-cc is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.