codex

Review code diffs against the base branch using the Codex CLI.

Updated Feb 28, 2026
One-click install
npx skills add https://github.com/Analog-Labs/pixelport-launchpad --skill codex-analog-labs
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/Analog-Labs/pixelport-launchpad/tree/main/.agents/skills/gstack/codex
Command: npx skills add https://github.com/Analog-Labs/pixelport-launchpad --skill codex-analog-labs

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides an independent, brutally honest second-opinion review of code changes against the base branch using the Codex CLI.

Core Features & Use Cases

  • Review mode: evaluate diffs against the base branch to validate changes.
  • Challenge mode: adversarial testing to uncover edge cases and failures.
  • Consult mode: quick, direct prompts for guidance or explanations.
  • Use cases include validating security, correctness, and robustness of changes across collaborative workflows.

Quick Start

Install Codex CLI, then run /codex review to generate an independent code review against your base branch.

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 a code review using the Codex CLI?▼

To get a second opinion on a code review, run `/codex review` against your base branch. It evaluates diffs for security, correctness, and robustness, streaming the full output with a gate verdict and token count.

How does adversarial code testing work for finding edge cases in git diffs?▼

Adversarial code testing uses the Challenge mode to aggressively probe base branch diffs. It uncovers edge cases and potential failures by applying adversarial analysis to your code changes.

Do I need to install the Codex CLI to perform automated diff analysis?▼

Yes, installing the Codex CLI is required. Once installed, you can run commands to evaluate diffs, execute ad-hoc prompts, or perform plan-based reviews across your git repositories.

Can I use this for quick guidance on code changes without a full diff review?▼

Yes, you can use Consult mode for quick, direct prompts. It provides immediate guidance and explanations without needing to run a full base branch diff analysis.

Does this support cross-model comparisons for security-leaning code checks?▼

Yes, it supports cross-model comparisons during security-leaning code checks. The system persists session data and handles errors while streaming full output with a gate verdict.

What is the best way to validate the correctness of changes in collaborative workflows?▼

The best way to validate changes is using Review mode. It evaluates diffs against the base branch to independently validate security, correctness, and robustness across collaborative git workflows.