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codex-collab

Coordinate Claude Code and Codex in tmux panes for design reviews.

Updated Feb 4, 2026
Search Tags:#Codex#tmux#code-review#design-review#pair-programming#AI-collaboration#architectural-discussion
One-click install
npx skills add https://github.com/sizukutamago/dev-tools-plugin --skill codex-collab
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: codex-collab
Source: https://github.com/sizukutamago/dev-tools-plugin/tree/main/skills/codex-collab
Command: npx skills add https://github.com/sizukutamago/dev-tools-plugin --skill codex-collab

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Codex Collab enables real-time, tmux-based collaboration between Claude Code and Codex to discuss architecture, perform design reviews, and pair-program with AI, accelerating quality and decision-making.

Core Features & Use Cases

  • Real-time, pane-based collaboration that lets Claude Code implement while Codex provides design guidance and code-review input.
  • Clear role separation where Codex acts as advisor and Claude Code executes changes.
  • Use cases include architectural discussions, design decisions, and hands-on code reviews during development sprints.

Quick Start

Launch a Codex collaboration by splitting the current tmux window and starting Codex in the new pane:

  • tmux split-window -h
  • tmux send-keys "codex"
  • tmux send-keys Enter
  • Send your initial question or task to Codex in the Codex pane, for example:
  • tmux send-keys -t :.1 "How should we structure the authentication flow for this feature?"
  • tmux send-keys -t :.1 Enter

Frequently Asked Questions about codex-collab

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

FAQPage Schema
How do I set up tmux to pair-program with an AI assistant?▼

Tmux-based pair-programming with AI splits the window so Claude Code can implement changes in one pane while Codex provides design and code review input in the other.

Can I use Codex CLI for architectural discussions with Claude Code?▼

Yes, Codex CLI can act as an advisor for architectural discussions with Claude Code by running in a separate tmux pane, sending design questions and receiving real-time guidance.

What's the best way to perform a real-time design review with an AI?▼

The best way to perform a real-time design review with an AI is enforcing a clear role split where Codex acts as advisor and Claude Code implements, communicating via split tmux panes.

Do I need an authenticated environment to use Codex for code reviews?▼

Yes, an authenticated environment is required to use Codex for code reviews, alongside having Codex CLI and tmux installed to enable the collaborative session.

How does role separation work when collaborating with multiple AI agents?▼

Role separation in AI collaboration designates Codex as the advisor providing design input and code review, while Claude Code executes the actual implementation changes.

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