codex

Review code diffs with OpenAI Codex CLI and output a gate verdict.

Updated Mar 29, 2026
One-click install
npx skills add https://github.com/filipnyquist/caidos --skill codex-filipnyquist
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/filipnyquist/caidos/tree/main/.claude/skills/gstack/codex
Command: npx skills add https://github.com/filipnyquist/caidos --skill codex-filipnyquist

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Provides an independent, blunt second opinion on code changes to catch issues that slip through standard reviews.

Core Features & Use Cases

  • Review mode: run a standard code review against diffs, enforce gate-style verdicts.
  • Challenge mode: adversarial prompts to probe robustness and edge cases.
  • Consult mode: ask Codex to explain or reason about design decisions with session continuity for follow-ups.

Quick Start

Run /codex to get an independent second opinion on your latest changes.

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 second opinion on code changes?

To get an independent second opinion on code changes, you can run a review against your diffs to enforce gate-style verdicts and catch issues that standard reviews miss.

How do I probe edge cases and robustness in a code review?

You can probe edge cases and robustness in a code review by using adversarial challenge prompts to aggressively test your code changes and uncover hidden vulnerabilities.

Can I ask an AI assistant to reason about specific design decisions in my code?

Yes, you can ask an AI assistant to explain or reason about design decisions using consult prompts, which provide session continuity for follow-up questions.

What is the difference between standard code review and adversarial challenge modes?

Standard code review runs against diffs to enforce gate-style verdicts, while adversarial challenge mode uses probing prompts to test robustness and expose edge cases.

Does the Codex CLI tool require any external dependencies or components?

No, the Codex CLI tool operates independently without requiring external dependencies or components to provide blunt second opinions on your code diffs.

When should I use an adversarial code review instead of a standard review?

You should use an adversarial code review when standard reviews pass but you need to aggressively probe robustness, expose edge cases, and ensure your code changes hold up under challenging conditions.