How do I change my default Codex settings?

You can update your preferences by saying 'codex config,' which allows you to modify the defaults.json file for models, reasoning levels, and sandbox modes.

Can tasks run in the background?

Yes, the Codex skill defaults to background execution for long-running tasks, allowing you to continue working while Claude processes the request.

How does the sandbox mode work?

The skill supports read-only mode for analysis and workspace-write mode for editing, with a full-access mode available upon user confirmation.

Can I perform code reviews with this skill?

Yes, use the /codex-review command to analyze specific commits, branches, or all uncommitted local changes.

What models does the Codex skill support?

It supports gpt-5.3-codex for high-accuracy complex tasks and gpt-5.3-codex-spark for rapid prototyping and quick fixes.

Codex CLI Integration

Name: Codex CLI Integration
Author: addsalt1t

byaddsalt1t

0•

Productivity & Workflow

Automates code analysis, refactoring, and AI-driven code reviews using the Codex CLI directly within your development workflow.

This skill bridges Claude with the Codex CLI, enabling advanced code manipulation and analysis through powerful models like GPT-5.3-Codex. It allows developers to perform deep architectural refactors, rapid single-file edits, and comprehensive code reviews while managing complex configurations and sandboxed environments. Whether you need to automate multi-file changes or conduct a quick 'spark' review of a specific commit, the Codex skill provides a robust interface for session management, background task execution, and precise control over reasoning levels and workspace permissions.

Key Features

01Intelligent model selection between high-accuracy and high-speed variants

02Automated code reviews for commits, branches, or uncommitted changes

03Dynamic configuration management for model settings and reasoning effort levels

04Sandboxed execution environments with customizable workspace write permissions

050 GitHub stars

06Persistent session management and background task execution for complex refactors

Use Cases

01Conducting automated code reviews on local branches before pushing to production

02Performing deep architectural refactoring across multiple files with high-reasoning models

03Running quick bug fixes and formatting tasks using the high-speed Spark model variant

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add addsalt1t/evoca codex

For use in Claude.ai and ChatGPT

Download Skill