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TobiasPerry
TobiasPerryCOMMUNITY
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codex

Review code diffs and plans using the Codex CLI.

Updated Mar 27, 2026
Search Tags:#cli#codex#bash#code-analysis#code-review#ai-assistance
One-click install
npx skills add https://github.com/TobiasPerry/aws-hackathon --skill codex-tobiasperry
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/TobiasPerry/aws-hackathon/tree/main/.claude/skills/gstack/codex
Command: npx skills add https://github.com/TobiasPerry/aws-hackathon --skill codex-tobiasperry

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Provides a brutally honest, automated second opinion on code changes by leveraging the Codex CLI to surface edge-case issues that automated tests often miss.

Core Features & Use Cases

  • Independent review modes: review, challenge, and consult, applicable to diffs, plans, and prompts.
  • Structured outputs with gates and actionable findings that can be surfaced in CI, planning, or design reviews.
  • Works across languages and repo structures by feeding the relevant code, diffs, or prompts into Codex with a clear boundary.

Quick Start

Invoke the Codex CLI to review the current diff against the base branch and inspect the gate results.

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 code changes to catch edge-case issues?▼

You can get a brutally honest review of code changes by feeding diffs, plans, or prompts into the Codex CLI to surface edge-case issues that automated tests often miss.

Does the Codex CLI code review work across different programming languages and repository structures?▼

Yes, code review via Codex CLI works across languages and repo structures by feeding the relevant code, diffs, or prompts into Codex with a clear boundary prompt for context isolation.

How do I use the Codex CLI to challenge a code plan or design defensively?▼

You can invoke independent review modes like review, challenge, or consult on your plans and diffs, enabling both defensive reviews and adversarial challenges in real-world projects.

What do I need to set up before running an automated code review with the Codex CLI?▼

Before running an automated code review, you need the Codex CLI installed, access to the target repository, and the ability to feed relevant diffs or prompts into Codex with a boundary prompt.

Can I surface automated code review findings and gates directly in my CI pipeline?▼

Yes, you can surface structured outputs with gates and actionable findings from the Codex CLI review directly in CI pipelines, planning, or design reviews to enforce quality checks.

What are the limitations of using an adversarial AI prompt for code analysis instead of standard linting?▼

Unlike standard linting, adversarial code analysis via Codex CLI requires manually establishing boundary prompts and feeding relevant diffs, relying on prompt context rather than static syntax rules.

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