codex

Analyze code diffs with Codex in review, challenge, or consult modes.

Updated Mar 26, 2026
One-click install
npx skills add https://github.com/FxHollow/100000mrr-landing --skill codex-fxhollow
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/FxHollow/100000mrr-landing/tree/main/.agents/skills/gstack/codex
Command: npx skills add https://github.com/FxHollow/100000mrr-landing --skill codex-fxhollow

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Codex has three modes (review, challenge, consult) to provide independent, expert feedback on code changes, strengthening quality and security checks.

Core Features & Use Cases

  • Independent Codex review with a deterministic gate on code changes.
  • Adversarial challenge to probe robustness and uncover edge cases.
  • Interactive consult mode with session continuity for follow-ups.

Quick Start

Install and configure the Codex CLI, then run the tool against your branch diff and select a mode to begin.

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 my code diff for a formal review?

To get an independent second opinion on a code diff, run the Codex CLI against your branch and select review mode to apply a deterministic quality gate on the changes.

What is adversarial testing for code changes and how does it probe robustness?

Adversarial testing for code changes probes robustness by challenging the diff to uncover hidden edge cases. Use challenge mode to actively probe your code's weak points.

Do I need the Codex CLI installed to run an automated code review?

Yes, you need the Codex CLI installed and repository access to run an automated code review, as the tool analyzes the current diff directly within your development workflow.

Can I ask follow-up questions during an automated code analysis session?

Yes, you can ask follow-up questions during an automated code analysis by using consult mode, which provides interactive feedback and maintains session continuity for your inquiries.

How do I log gate outcomes and usage telemetry for code reviews?

To log gate outcomes and usage telemetry for code reviews, execute the tool against your branch diff; it automatically records evaluation results and usage telemetry during the analysis process.