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skill CX Codex

codex-plugin-cc — Claude Code skill: what it does, how to install

Runs OpenAI Codex reviews and delegates background fixes directly from Claude Code. Good for getting an outside critique on diffs.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add reason-machines/trending-skills --skill codex-plugin-cc -a claude-code
Open on GitHub

What codex-plugin-cc does

This skill ties Claude Code to the Codex command line. Running /codex:review evaluates uncommitted files or branch diffs against another branch. The /codex:adversarial-review command takes a different path. It actively questions design choices and highlights hidden assumptions.

Heavy lifting can move to the background through /codex:rescue. This delegates investigations or bug fixes to a separate Codex subagent. You check progress with /codex:status and pull logs using /codex:result. Outputs include a session identifier. Work can resume inside the standalone Codex CLI at any point.

Prerequisites include Node.js 18.18 or newer alongside an authenticated @openai/codex CLI package. Project settings reside in .codex/config.toml. Turning on the optional review gate blocks agent stops on unresolved issues, which risks triggering recursive loops and depleting rate limits.

What it helps with

  • audit uncommitted changes against a base branch
  • challenge architecture tradeoffs through adversarial review
  • delegate flaky test investigations to a background subagent
  • retrieve session identifiers to continue troubleshooting in Codex CLI

Example prompts for the agent

  • /codex:review --base main
  • /codex:adversarial-review --background challenge the caching strategy and retry design
  • /codex:rescue investigate why integration tests fail

How to install codex-plugin-cc

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill codex-plugin-cc -a claude-code

2Manually: put the files in place

~/.claude/skills/codex-plugin-cc/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/codex-plugin-cc/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about codex-plugin-cc

How do you install codex-plugin-cc in Claude Code?

Run npx skills add reason-machines/trending-skills --skill codex-plugin-cc -a claude-code in your terminal.

What does codex-plugin-cc do?

It brings OpenAI Codex code review and subagent task delegation into your interactive Claude Code environment.

Why should you be careful with the review gate?

The --enable-review-gate option runs Codex inspections after every model response and blocks stopping, which can trigger infinite loops and exhaust account quotas.

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