codex-with-claudecode

Execute OpenAI Codex or ChatGPT CLI queries within Claude Code.

8|Updated Jul 26, 2026
One-click install
npx skills add https://github.com/joonlab/joonlab-claudecode-setting-for-share --skill codex-with-claudecode
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex-with-claudecode
Source: https://github.com/joonlab/joonlab-claudecode-setting-for-share/tree/main/claude/skills/codex-with-claudecode
Command: npx skills add https://github.com/joonlab/joonlab-claudecode-setting-for-share --skill codex-with-claudecode

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This skill bridges the gap between Claude Code and OpenAI models, allowing you to leverage GPT-based reasoning for code generation, cross-checking, or alternative perspectives without leaving your terminal environment.

Core Features & Use Cases

  • Cross-Model Validation: Use GPT models to verify code logic or suggest improvements on Claude's output.
  • Session Management: Execute queries in non-interactive mode and convert them into persistent terminal sessions for follow-up.
  • Use Case: When you need a second opinion on a complex refactoring task, use this skill to query Codex for an alternative implementation strategy and resume the conversation directly in your terminal.

Quick Start

Use the codex skill to execute a query asking GPT to review the current code logic for potential security vulnerabilities.

Frequently Asked Questions about codex-with-claudecode

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

FAQPage Schema
How do I cross-validate code logic using OpenAI models inside the Claude Code terminal?▼

Cross-validation is achieved by executing OpenAI Codex or ChatGPT CLI queries within Claude Code to fetch alternative reasoning and verify code logic without leaving the terminal environment.

Can I run OpenAI Codex queries in non-interactive mode and resume them later?▼

Yes, queries can be executed in non-interactive mode and converted into persistent terminal sessions using session ID tracking and local session file management to maintain context across multiple turns.

Do I need the codex-cli tool to generate code with GPT models from my terminal?▼

Yes, the codex-cli tool is required to execute OpenAI queries, manage local session files, and facilitate non-interactive execution workflows within the Claude Code environment.

What is the best way to get a second opinion on a complex refactoring task from ChatGPT?▼

The best way is querying Codex for an alternative implementation strategy via CLI, then converting the background task into an interactive terminal session to resume the conversation directly.

Does cross-model code analysis work without managing local session files?▼

No, local session file management is required to maintain context across multiple turns and track session IDs when converting background tasks into interactive terminal sessions.