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codex

Automate code analysis, refactoring, and editing with Codex CLI.

Updated Aug 23, 2026
Search Tags:#workflow#refactoring#cli#codex#code-analysis#ai-assisted#automated-editing
One-click install
npx skills add https://github.com/ethanolivertroy/ets-agent-skills --skill codex-ethanolivertroy
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/ethanolivertroy/ets-agent-skills/tree/main/codex
Command: npx skills add https://github.com/ethanolivertroy/ets-agent-skills --skill codex-ethanolivertroy

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Codex CLI enables automated code analysis, refactoring, and editing to improve code quality and productivity with AI-assisted tooling.

Core Features & Use Cases

  • Code analysis and automated refactoring using Codex CLI
  • Automated code editing and transformations guided by AI
  • Session-based workflows including resume capabilities for ongoing tasks

Quick Start

Tell me your code task and I will run Codex CLI with your chosen model and reasoning effort.

Frequently Asked Questions about codex

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I run AI-assisted code refactoring across a large codebase?▼

Codex CLI performs automated code analysis and refactoring by applying AI-assisted edits across supported languages. You provide a code task description, and the CLI executes transformations using configurable models and reasoning effort settings.

Can I resume a previous code analysis session after stopping?▼

Codex CLI supports session-based workflows with resume capabilities, allowing you to continue automated code analysis and editing from where a previous session left off. Use resume sessions to maintain context across ongoing refactoring tasks.

Does Codex CLI support read-only analysis without modifying files?▼

Codex CLI supports read-only sandbox mode for safe code analysis without modifying files. You can run analyses and inspect code quality issues using the --sandbox flag before applying any actual automated edits or refactoring.

How do I configure the model and reasoning effort for code editing tasks?▼

Model and reasoning effort for automated code editing are configured using the -m and --config flags in Codex CLI. These flags control the AI's approach to code analysis, refactoring, and automated transformations.

What do I need installed to run Codex CLI for code analysis?▼

Codex CLI must be installed locally to run AI-assisted code analysis, refactoring, and automated editing. The tool operates on software projects across languages supported by Codex, handling both small modules and large codebases.

When should I use full-auto mode versus sandbox mode for code refactoring?▼

Use --full-auto for continuous automated edits across large codebases, and read-only or standard --sandbox mode when you need to review code analysis before applying changes. Choose based on your desired edit control level.

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