Codex Review Workflow

What it does

The Codex Review Workflow automates code review tasks using the OpenAI Codex CLI. It facilitates iterative fix-and-review cycles to ensure code quality by automatically validating against established coding standards and identifying potential issues like bugs, security vulnerabilities, and adherence to best practices. The workflow guides users through a structured process of writing code, reviewing it with Codex, fixing any identified problems, and re-reviewing until satisfactory.

When to use it

• When a user explicitly requests a Codex CLI review (e.g., "Review this with Codex").
• For implementing features that require automated code validation.
• When building code that must meet specific quality standards.
• During iterative review and refinement cycles.
• To automatically validate for security, bugs, and best practices.

Key capabilities

• Automated code review using OpenAI Codex CLI.
• Structured 6-step workflow: Coding, Initial Review, Analysis, Fixes, Final Review, Reporting.
• Support for reviewing individual files or multiple files at once.
• Ability to specify a working directory context for reviews.
• Option to use specific OpenAI models (e.g., gpt-5-codex).
• Customizable configuration options via Codex CLI flags.

Example prompts

Here are some example prompts you can give an AI agent with this skill:

• "Review the code in auth.py for bugs, security issues, and best practices."
• "Review the files user.py and session.py for potential improvements. Provide specific feedback with line numbers."
• "Review the code in /path/to/project/email_validator.py for vulnerabilities."

Tips & gotchas

• Prerequisites: The Codex CLI must be installed and available on your system's PATH. A Git repository is also required (unless you use the --skip-git-repo-check flag, which isn’t recommended for production).
• Specificity is key: Be specific in your prompts about what aspects of the code to review. Requesting line numbers and examples helps ensure actionable feedback.
• Timeout: Consider setting an appropriate timeout (120000ms or 2 minutes is recommended) for Codex CLI reviews.