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Oh My Codex

Multi-agent orchestration layer for OpenAI Codex CLI

open sourceupdated Jul 28, 2026

Oh My Codex (OMX) transforms OpenAI Codex CLI into a coordinated multi-agent system. It layers workflow orchestration, persistent memory, team-based parallel execution via tmux worktrees, and a live HUD dashboard on top of standard Codex. OMX provides 30+ role-specialized agents and 40+ workflow skills covering planning, execution, verification, TDD, security review, and autonomous research loops.

Oh My Codex, commonly known as OMX, is an open-source orchestration layer that converts the OpenAI Codex CLI from a single-agent coding assistant into a full multi-agent development platform. The core philosophy is that the developer acts as conductor rather than performer: OMX coordinates specialized agents for architecture, planning, execution, QA, and security review while Codex remains the underlying execution engine.

The platform introduces a staged pipeline model where tasks flow through plan, PRD, execution, verification, and fix phases with strict quality gates between each stage. Team mode spawns parallel workers in isolated git worktrees via tmux, enabling conflict-free concurrent development across multiple files or modules. The deep-interview workflow uses Socratic questioning to clarify requirements before any code is written, routing tasks to the appropriate workflow based on intent classification.

OMX ships with five MCP servers for persistent state and memory, a live HUD for monitoring agent activity, and a hook system for extending behavior at key lifecycle points. It supports mixed-provider teams where Codex, Claude, and Gemini workers run side by side, each in their own worktree. The project is MIT licensed, installs via npm, and integrates with the LobeHub skills marketplace.

Pricing

Free and open-source under MIT license

Platforms

macOS, Linux (requires tmux for team mode)

Categories

Tags

Use Cases

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Codex

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OpenAI coding agent for app, editor, terminal, and cloud work

Codex is OpenAI's coding agent for software development across the Codex app, editor, terminal, and cloud tasks. It helps write, review, debug, refactor, and automate code, with ChatGPT plan access for managed surfaces and API-key usage for CLI, SDK, and IDE workflows. The open-source CLI and SDK support local repository work, while cloud features add GitHub review, Slack/Linear integrations, worktrees, skills, MCP, and automations.

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Oh My ClaudeCode

Multi-agent orchestration plugin for Claude Code

Oh My ClaudeCode (OMC) is a plugin for Claude Code that adds multi-agent orchestration with 19 specialized agents, smart model routing between Haiku and Opus, and execution modes such as Autopilot, Team, Ralph, Ultrawork, and Deep Interview. It provides lifecycle hooks, a real-time HUD statusline, and source-backed Claude Code workflows that turn one session into a coordinated AI development team.

Open Source
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Claude Squad

Manage multiple AI terminal agents in parallel with isolated Git worktrees

Open-source terminal app for managing multiple AI coding agents (Claude Code, Codex, Gemini, Aider) in parallel, each in an isolated workspace with its own git branch. Uses tmux for isolated terminal sessions and git worktrees so agents work independently without conflicts. Dashboard view of all active instances, auto-accept mode for background execution, and a review workflow for inspecting changes before merging. Installed via Homebrew as the cs command.

Open Source
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Aider

AI pair programming in your terminal

Terminal-based AI pair programmer with deep git integration. Auto-commits changes with meaningful messages and creates repository maps for navigating large codebases. Works with Claude, GPT, DeepSeek, and local models. One of the most popular open-source AI coding tools, known for its reliability, broad model support, and seamless command-line workflow.

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OpenCode

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Open-source terminal-based AI coding agent built in Go by the SST team, with a rich TUI (Bubble Tea) supporting 75+ model providers including OpenAI, Anthropic, Gemini, Bedrock, Groq, and OpenRouter. Features vim-like editing, persistent SQLite sessions, and LSP integration for 40+ languages. Fully free with no vendor lock-in, it has rapidly grown to 95k+ GitHub stars.

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FAQ

What is Oh My Codex?

Oh My Codex (OMX) transforms OpenAI Codex CLI into a coordinated multi-agent system. It layers workflow orchestration, persistent memory, team-based parallel execution via tmux worktrees, and a live HUD dashboard on top of standard Codex. OMX provides 30+ role-specialized agents and 40+ workflow skills covering planning, execution, verification, TDD, security review, and autonomous research loops.

Is Oh My Codex free?

Yes — Oh My Codex is open source and free to use. Free and open-source under MIT license

Is Oh My Codex open source?

Yes — Oh My Codex is open source.

What are the best Oh My Codex alternatives?

The top editor-verified Oh My Codex alternatives are Codex, Oh My ClaudeCode, Claude Squad, and more.