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codex

Generate structured code critiques using Codex CLI review, challenge, and consult modes.

5|1|Updated Feb 12, 2026
Search Tags:#codex#ai#code-review#adversarial#diff-analysis
One-click install
npx skills add https://github.com/drt0927/tw-overlay --skill codex-drt0927
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/drt0927/tw-overlay/tree/main/.gemini/skills/gstack/codex
Command: npx skills add https://github.com/drt0927/tw-overlay --skill codex-drt0927

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automates obtaining an independent, focused critique of code changes by using the Codex CLI to generate a second opinion with review, challenge, and consult modes.

Core Features & Use Cases

  • Review mode delivers a structured pass/fail assessment of diffs to help accept or reject changes quickly.
  • Challenge mode attempts to break or stress the changes to surface edge cases and potential bugs.
  • Consult mode answers questions about the codebase with session continuity for follow-ups.

Quick Start

Ask Codex for a second opinion on the current changes by running the appropriate codex CLI mode.

Frequently Asked Questions about codex

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

FAQPage Schema
How do I get an automated second opinion on my code changes?▼

To get an AI second opinion on code changes, you use the Codex CLI to generate a structured critique of your diffs. This Skill automates obtaining independent feedback through review, challenge, and consult modes to help you quickly assess modifications.

What is adversarial code review and how does it find edge cases?▼

Adversarial code review attempts to break or stress code changes to surface hidden edge cases and bugs. Using the challenge mode in this Skill, you can automate this stress testing against your codebase to validate structural resilience before merging.

Can I use this code review tool to ask questions about my codebase?▼

Yes, you can ask questions about your codebase using the consult mode. This mode provides answers regarding your code with session continuity, allowing for iterative follow-up questions to fully understand underlying logic and dependencies.

Do I need the codex binary installed to run adversarial diff analysis?▼

Yes, you need the codex binary installed and configured prompts set up to run adversarial diff analysis. These dependencies are required for the Skill to execute its review, challenge, and consult modes on your codebase changes.

What is the best way to evaluate code diffs before accepting a pull request?▼

The best way to evaluate code diffs before acceptance is running a structured review mode that delivers a pass or fail assessment. This Skill uses the Codex CLI to provide that focused critique, helping you decide whether to accept or reject changes quickly.

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