Codex plugin for Claude Code
A free plugin from OpenAI that lets you call on Codex to review your code or hand off a background task without ever leaving Claude Code.
🔗 Visit Codex plugin for Claude Code
Description
If your team uses more than one AI coding assistant, switching between them usually means switching windows too — you finish a task in Claude Code, then open a separate app to get a second opinion from Codex. This plugin removes that friction: it wires Codex directly into Claude Code as slash commands, so you can request a review or delegate a task to Codex without leaving the terminal you're already working in.
Released by OpenAI under Apache 2.0, the plugin adds commands like /codex:review for standard code review, /codex:adversarial-review for a more confrontational pass that challenges design decisions rather than just syntax, and /codex:transfer to hand a session over to the Codex app and back. Background tasks delegated to Codex run asynchronously with progress tracking and resumability, and there's a subagent (codex:codex-rescue) specifically for long-running jobs. It requires Node.js 18.18+ and a working `codex` CLI binary, and using it consumes your existing Codex quota — a ChatGPT subscription or an OpenAI API key — on top of whatever you're already paying for Claude Code.
💬 Our review
The short version: this plugin is a smart convenience layer for teams already paying for both Claude Code and a Codex subscription, letting you get a second, differently-trained opinion on your code without app-switching — it adds no value if you only use one of the two assistants.
Against GitHub Copilot's built-in PR review suggestions, which run automatically wherever your repo lives without any local setup, this plugin requires you to actively invoke it and maintain a local `codex` binary — more friction, but also more control over when and how the second-opinion review happens, and it works inside your active coding session rather than only on already-opened pull requests. Against CodeRabbit, a dedicated automated PR review service, the plugin is narrower in scope: CodeRabbit runs continuously and asynchronously on every PR with its own dashboard, while this plugin is an on-demand tool you trigger from inside Claude Code itself. Against just using Claude Code's own native review capabilities, the actual value proposition is diversity of judgment — a different model reviewing your code catches different classes of issues than the same model reviewing its own work, which is the real argument for this plugin existing at all. The honest cost: it requires an active Codex subscription or API key on top of Claude Code, and the review-gate workflow can spiral into long, token-expensive back-and-forth loops between the two assistants if you're not careful about scope. Worth it if you already pay for both tools and want a genuine second opinion; not worth adopting Codex just to use this plugin.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Plugin gratuit sous licence Apache 2.0, mais nécessite un abonnement ChatGPT ou une clé API OpenAI pour utiliser Codex (quotas comptés à part).
Pros
Intégration native dans le workflow Claude Code, sans changer d'outil
Revues adversariales orientables pour challenger le design au-delà de la syntaxe
Délégation de tâches en arrière-plan avec suivi et reprise de progression
Cons
Nécessite un abonnement ChatGPT ou une clé OpenAI — coût caché en plus de Claude Code
Les revues multi-fichiers peuvent créer des boucles Claude/Codex longues et coûteuses
Dépendance stricte au binaire codex global (Node.js 18.18+ requis)