codex

Generate, analyze, and research code using Codex CLI commands.

16|1|Updated Jan 2, 2026

Search Tags:#automation #cli #codex #code-analysis #web-search #code-generation #ai-workflows

Ready to run

npx skills add https://github.com/bahayonghang/my-claude-code-settings --skill codex-bahayonghang

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: codex
Source: https://github.com/bahayonghang/my-claude-code-settings/tree/main/skills/codex
Command: npx skills add https://github.com/bahayonghang/my-claude-code-settings --skill codex-bahayonghang

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automates complex coding tasks and online research by leveraging Codex CLI to generate, analyze, and fetch information within AI workflows.

Core Features & Use Cases

Code Generation with deep reasoning for large-scale refactors and feature development.
Code Analysis and multi-file reviews with contextual search across repositories.
Web Search & Fetch for current documentation and external sources to inform decisions.
Use Case: Imagine you need to implement a new module with code generation, then verify with analysis and look up API docs.

Quick Start

Install Codex CLI, authenticate, and start with a sample task using the codex CLI. Example: codex e -m gpt-5.2-codex -c model_reasoning_effort=xhigh "explain @src/main.ts"

Frequently Asked Questions about codex

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

FAQPage Schema

How do I automate large-scale code refactoring using AI workflows?▼

Large-scale code refactoring is automated by leveraging Codex CLI for code generation with deep reasoning within AI workflows. You execute commands with high reasoning efforts to handle multi-file modifications and complex feature development.

Can I perform multi-file code analysis across repositories with Codex CLI?▼

Yes, multi-file code analysis across repositories is supported by Codex CLI. It performs contextual searches and deep code reasoning to review and analyze relationships between files directly within your AI workflows.

How do I fetch current documentation and external sources during code generation?▼

Fetching current documentation during code generation is handled by Codex CLI's web search and fetch capabilities. It gathers online information from external sources to inform your decisions and verify API docs within workflows.

Do I need to install and authenticate Codex CLI before using this skill?▼

Yes, installing and authenticating Codex CLI is required before using this skill. You must have the CLI environment explicitly configured with model and reasoning level options to execute code generation and analysis tasks.

How do I configure model reasoning levels for deep code reasoning tasks?▼

Model reasoning levels for deep code reasoning tasks are configured using explicit command patterns in Codex CLI. You set parameters like model_reasoning_effort to high levels to ensure thorough analysis for complex refactoring workflows.

What are the limitations of using Codex CLI for web search and code analysis?▼

Limitations of using Codex CLI for web search and code analysis include its dependency on having the CLI installed and authenticated. It requires explicit command patterns, meaning failures in CLI authentication or network access will halt workflows.