Codex Plugin for Claude Code

Codex Plugin for Claude Code is OpenAI's official Claude Code plugin for adding independent code review, adversarial review, rescue tasks, background jobs, and session transfer through the locally configured Codex CLI. It is not a hosted agent or standalone IDE: Claude Code provides the entry point and context, while the plugin starts local Node.js and Codex app-server processes. Authentication, models, endpoints, and repository access follow the user's Codex configuration. Normal review is designed for read-only analysis, while rescue can modify a project within its authorized scope, so those permissions need to remain distinct.

Add the OpenAI marketplace in Claude Code, install codex@openai-codex, reload plugins, and run /codex:setup. Setup checks or helps install the local Codex CLI. Global npm installation, authentication, and enabling the Stop review gate should each receive separate approval.

Help me install Codex Plugin for Claude Code from https://github.com/openai/codex-plugin-cc. First review the README, v1.0.6 release, LICENSE, plugin manifest, hooks, and setup command, then check the current Claude Code version, Node.js version, and local Codex CLI state. Explain that it starts local processes, reads the repository and Codex configuration, stores job logs, may write through rescue, and can read ~/.claude/projects sessions through transfer. After I approve, run the README's marketplace, install, and reload commands. Ask again before any global npm installation, Codex login, API key entry, extra permission, config overwrite, or review-gate enablement, and never print credentials. Finally, run only a background read-only review in a non-production repository and verify it with status and result. Do not run rescue or transfer.

/plugin marketplace add openai/codex-plugin-cc
/plugin install codex@openai-codex
/reload-plugins
/codex:setup

1. 1
   Add the OpenAI marketplace

   Run /plugin marketplace add openai/codex-plugin-cc in Claude Code, then /plugin install codex@openai-codex.

2. 2
   Reload and complete local setup

   Run /reload-plugins and /codex:setup. Check Node.js, the Codex CLI, and authentication before approving global installation or login changes.

3. 3
   Run a read-only background review

   In a non-production repository, run /codex:review --background with a narrow scope and without secrets, personal data, or unrelated files.

4. 4
   Retrieve and verify the result

   Use /codex:status to inspect the job, then /codex:result to retrieve it. Treat findings as review advice that still needs human verification.

5. 5
   Open higher-risk capabilities selectively

   Use rescue or transfer only after reviewing write and data boundaries. Enable the review gate only while someone actively monitors it.

The plugin's value is a traceable two-agent workflow between Claude Code and local Codex, not a promise that either model guarantees quality. The official OpenAI repository provides explicit installation commands, an Apache-2.0 license, versioned releases, command source, hooks, and tests. The repository also makes the normal review's read-only contract distinguishable from rescue's write-capable default. The cost is a wider data and permission surface: repository content and prompts are processed through the endpoint configured for local Codex, transfer reads Claude sessions, background jobs write local logs, and the review gate can extend loops and consume usage. A measured rollout starts with setup and read-only review in a non-production repository, then selectively enables rescue, transfer, or the Stop hook. This assessment is based on first-party public material and source structure; installation and behavior were not tested.