OpenAI ships Codex into Claude Code — two commands, or four?

Short summary

OpenAI shipped an official plugin (codex-plugin-cc) that runs the Codex coding agent from inside Anthropic's Claude Code CLI — a rare case of a frontier-model vendor packaging tooling for a competitor's ecosystem. The full setup requires four slash commands, not the two advertised in viral clips: marketplace add, plugin install, reload-plugins, and codex:setup. The plugin reuses existing Codex auth, keeps billing separate, and includes an opt-in review gate that can drain usage limits if enabled carelessly.

• •codex-plugin-cc is an official OpenAI plugin running Codex inside Claude Code — Apache-2.0, pure JavaScript
• •Full setup is four commands, not two — skipping reload-plugins or setup causes silent failures
• •Billing stays separate; the review-gate hook can spin up a sustained Claude/Codex loop that drains limits fast

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