codex

Wrap the OpenAI Codex CLI for code review, adversarial testing, and consultation.

Updated May 27, 2026
One-click install
npx skills add https://github.com/Shmurdoc/EasyRide-v1 --skill codex-shmurdoc
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/Shmurdoc/EasyRide-v1/tree/main/.opencode/skills/gstack/codex
Command: npx skills add https://github.com/Shmurdoc/EasyRide-v1 --skill codex-shmurdoc

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill eliminates the need to switch context or tools to get expert code feedback, letting you access independent code reviews, adversarial code testing, and ad-hoc code consultation directly within your development workflow.

Core Features & Use Cases

  • Code Review Mode: Run independent diff reviews via Codex with a pass/fail gate to catch issues before merging code.
  • Adversarial Challenge Mode: Test your code's resilience by having Codex attempt to break it, surfacing hidden edge cases and vulnerabilities.
  • Consult Mode: Ask Codex any code-related question with session continuity for follow-up questions, getting a reliable "second opinion" without losing context.
  • Use Case: Before merging a PR, use Code Review mode to get a pass/fail assessment; before shipping a new feature, use Challenge mode to surface hidden bugs; when stuck on an implementation, use Consult mode to get expert advice with persistent context for follow-up questions.

Quick Start

Invoke this skill and ask for a Codex review of your latest code changes to receive a pass/fail assessment before merging your pull request.

Frequently Asked Questions about codex

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I get an independent code review before merging a pull request?

To get an independent code review before merging, you can use the Codex review mode to run a pass/fail assessment on your latest diff. This gates your pull request by catching issues directly within your development workflow without context switching.

What is adversarial code testing and how does it find hidden vulnerabilities?

Adversarial code testing actively attempts to break your code to surface hidden edge cases and vulnerabilities. By challenging your implementation before shipping a new feature, it exposes resilience issues that standard testing often misses.

Can I ask follow-up code questions without losing session context?

Yes, you can ask follow-up code questions without losing context using the consult mode. It provides expert code consultation with persistent session continuity, allowing iterative questions and reliable second opinions on your implementation.

How do I run an automated diff review without leaving my development workflow?

You can run an automated diff review by invoking the skill to wrap the OpenAI Codex CLI directly in your environment. This delivers independent pre-merge code assessments and pass/fail gates without the need to switch tools.

Does Codex CLI integration support ad-hoc code consultation for software engineering tasks?

Yes, Codex CLI integration supports ad-hoc code consultation for software engineering tasks. It provides expert question answering with persistent session continuity, letting you get a reliable second opinion during implementation.

When should I not use adversarial challenge mode for code testing?

You should not use adversarial challenge mode if you only need a standard pass/fail diff review for pre-merge validation. Challenge mode is specifically designed to surface hidden vulnerabilities by attempting to break your code before shipping.