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codex

Review code diffs with OpenAI Codex and flag critical issues.

1|Updated Mar 25, 2026
Search Tags:#code review#security#codex#openai#adversarial testing#git diff#second opinion
One-click install
npx skills add https://github.com/bhianerd/aimemory --skill codex-bhianerd
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/bhianerd/aimemory/tree/main/.claude/skills/gstack/codex
Command: npx skills add https://github.com/bhianerd/aimemory --skill codex-bhianerd

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It helps you catch bugs, edge cases, security issues, and risky assumptions by getting an independent OpenAI Codex review of your code changes.

Core Features & Use Cases

  • Code review with a pass/fail gate: Review the diff against your base branch and treat any critical findings as a FAIL.
  • Adversarial challenge mode: Act like an attacker and try to break your code by focusing on failure modes, security holes, and production risks.
  • Consultation with session continuity: Ask Codex follow-up questions using an ongoing Codex session when available.

Quick Start

Run /codex review to get an independent code review of your current branch and a pass/fail gate.

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 for my git diff?▼

Get an independent code review by running /codex review on your current branch diff. It analyzes code changes against the base branch to identify critical issues, risky assumptions, and outputs a pass/fail gate based on the findings.

What is adversarial testing for code security and robustness?▼

Adversarial testing challenges your code by simulating an attacker trying to break it. The Codex adversarial mode focuses on identifying failure modes, security holes, and production risks within your code changes.

Can I ask follow-up questions after an initial code review?▼

You can ask follow-up questions during a code review using consultation mode. It supports session continuity, allowing you to query Codex with ongoing questions about the analyzed code changes.

Does Codex code review work with manual triggering and read-only analysis?▼

Codex code review requires manual triggering via the /codex command and operates strictly as a read-only analysis. It executes time-bounded analysis and handles structured output without modifying your codebase.

What are the limitations of using an automated second opinion for code changes?▼

The second opinion analysis is time-bounded and requires manual triggering. It provides structured read-only output without modifying code, meaning you must manually review findings and apply any suggested fixes yourself.

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