Our review

Leverages the Codex CLI to independently review code changes made during a Claude Code session, enabling a proposer-checker workflow.

Strengths

Provides an independent review by a second AI agent, increasing confidence in changes.
Seamlessly integrates with Git to review uncommitted changes, specific commits, or branch diffs.
Can also analyze individual files or implementation plans before coding.

Limitations

Requires prior installation and configuration of the Codex CLI and a valid OpenAI API key.
Feedback is limited to what Codex can analyze without full project context.
Is not real-time and does not replace an in-depth human code review.

When to use it

Use this skill when you want an automated second opinion on code changes before committing, especially in a maker-checker workflow that demands independent verification.

When not to use it

Avoid this skill if the Codex CLI is not set up or if you need continuous review during live development sessions.

name: codex description: Review code changes, implementation plans, or specific files using OpenAI Codex CLI. Triggers on "review", "check", "validate", "codex". Perfect for maker-checker workflows where you want a second AI agent to review Claude's work before committing. Requires the Codex CLI to be installed (brew install codex-cli or from https://codex.storage.googleapis.com). allowed-tools:

Bash
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Codex Code Review Skill

Version: 1.0.0 Author: Community-contributed Requires: Codex CLI installed and configured

Overview

Use the Codex CLI to perform independent code reviews on changes made during your Claude Code session. This enables a "proposer-checker-maker-checker" workflow where Claude Code proposes/implements changes and Codex provides an independent review.

Prerequisites

Install the Codex CLI:

brew install codex-cli
# OR download from https://codex.storage.googleapis.com

Configure your OpenAI API key:

codex login

Use the Codex CLI to review recent changes, implementation plans, or specific files.

Review Recent Git Changes

# Review uncommitted changes
codex review "Review the uncommitted changes in this repo"

# Review specific commit
codex review "Review the changes in commit <hash>"

# Review changes between branches
codex review "Review the diff between main and current branch"

Review Specific Files

# Review a specific file
codex review "Review the code in <file_path>"

# Review multiple files
codex review "Review the implementation in <file1> and <file2>"

Review Implementation Plan

# Review a plan before implementation
codex review "Review this implementation plan: <plan_content>"

Usage Pattern

Identify what needs review (recent changes, specific files, or a plan)
Run codex review with appropriate prompt
Present the review results to the user

The codex review command runs non-interactively and returns feedback that can be incorporated into the Claude Code session.

Workflow Example

User: I just implemented user authentication
Claude: [implements auth.ts, auth-middleware.ts, etc.]
User: /codex
Claude: [runs: codex review --uncommitted]
Claude: Codex found 2 issues:
  1. Missing error handling in auth.ts:45
  2. Password hash strength could be improved
User: Fix those issues
Claude: [fixes issues]
User: /codex
Claude: [runs review again]
Claude: Codex approves! No issues found.

Notes

Works best in git repositories
Review results are shown inline in the Claude Code session
Combines well with Claude's implementation capabilities for a robust development workflow

Codex Code Review

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