codex

Wrap the Codex CLI to review code diffs for issues.

Updated Jan 22, 2026
One-click install
npx skills add https://github.com/frydaiii/manbot --skill codex-frydaiii
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/frydaiii/manbot/tree/main/.claude/skills/codex
Command: npx skills add https://github.com/frydaiii/manbot --skill codex-frydaiii

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Provides an independent, blunt second opinion on code changes by wrapping the Codex CLI to surface issues that traditional reviews might miss.

Core Features & Use Cases

  • Review mode: assesses diffs against the base branch to verify correctness and surface potential bugs, edge cases, and security concerns.
  • Challenge mode: adversarial prompts that probe the code to reveal weaknesses and failure modes.
  • Consult mode: answers general questions about the codebase with context-aware explanations and actionable guidance.

Quick Start

Run codex review on the current diff against the base branch to get an independent assessment.

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 AI code review on my recent git diff?

To get an independent AI code review, you can run the codex review mode against your base branch. It assesses the diff to verify correctness and surface potential bugs, edge cases, and security concerns.

What is adversarial code analysis and how does it find hidden bugs?

Adversarial code analysis probes code using challenge prompts to reveal weaknesses and failure modes. This mechanism actively stress-tests your logic to expose hidden bugs that traditional reviews might miss.

Do I need the Codex CLI installed to use the codex skill for code analysis?

Yes, you need the Codex CLI installed to use this skill for code analysis. The skill wraps the Codex CLI to provide context-aware explanations and independent assessments of your codebase.

Can I ask general questions about my codebase with an AI assistant?

Yes, you can ask general questions using consult mode. The AI assistant provides context-aware explanations and actionable guidance by using a boundary prompt to constrain context and enable optional web search.

What is the best way to challenge code changes for potential failure modes before merging?

The best way to challenge code changes is using adversarial prompts. The challenge mode probes your code to reveal weaknesses and failure modes, providing a brutally honest second opinion before merging.