Does this skill require an OpenAI API key?

Yes, this skill relies on the Codex CLI, which requires an OpenAI account and valid authentication (OAuth or API key) to function.

How do I trigger a Codex review in Claude Code?

Once configured, you can trigger it using natural language prompts like 'get a second opinion', 'Codex review', or 'check this with Codex'.

Can I run multiple specialized reviews simultaneously?

Yes, the skill supports parallel execution of up to 8 specialized expert personas, such as Security, Quality, and Architecture experts, in a single workflow.

What is the main benefit of using Codex with Claude?

It provides a diverse 'second opinion' from a different AI model architecture, helping to identify edge cases, security risks, or performance bottlenecks that Claude might miss on its own.

What is the Model Context Protocol (MCP) in this context?

MCP is the standard used to connect the Codex CLI to Claude Code, allowing Claude to securely call Codex as an external tool for specialized analysis.

Codex Review Integration

Name: Codex Review Integration
Author: Chachamaru127

byChachamaru127

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122

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Collaboration Tools

Integrates OpenAI Codex as an MCP server to provide multi-perspective, second-opinion code reviews within the Claude Code environment.

Codex Review Integration empowers Claude Code with a secondary AI perspective by leveraging OpenAI Codex through the Model Context Protocol (MCP). This skill allows developers to validate Claude's implementations against specialized Codex expert personas—including security, performance, and architecture experts—simultaneously. It is particularly useful for mission-critical codebases where a multi-model 'second opinion' can catch subtle edge cases, architectural flaws, or security vulnerabilities that a single model might overlook.

Key Features

01Configurable review modes for security, performance, and architecture

02Automated 'second opinion' workflow for code quality assurance

03122 GitHub stars

04Seamless MCP-based integration of OpenAI Codex CLI

05Parallel multi-expert reviews with up to 8 specialized personas

06Automated environment setup and MCP registration guides

Use Cases

01Enhancing security audits with parallel expert model verification

02Automating multi-agent architectural reviews during complex refactoring

03Verifying mission-critical logic by comparing Claude and Codex analysis

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add chachamaru127/claude-code-harness codex-review

For use in Claude.ai and ChatGPT

Download Skill