yeachan-heo/oh-my-codex

OMX (oh-my-codex) is a workflow layer that sits on top of the OpenAI Codex CLI, which is a command-line coding agent. The README is clear that OMX does not replace Codex, Codex still does the actual agent work, but adds reusable roles, a standard workflow, hooks, runtime help, and a place to store plans and state, so day-to-day use of Codex feels more structured. The pitch is "start Codex stronger, then let OMX add better prompts, workflows, and runtime help when the work grows." You install it as a global npm package alongside Codex itself, then launch with a recommended command. From inside Codex you call canonical "skills" by typing keywords like $deep-interview to clarify a task, $ralplan to plan and review tradeoffs, $ralph to carry an approved plan to completion, $team for coordinated parallel execution, and $ultragoal for durable multi-goal launches. Project guidance lives in scoped AGENTS.md files, and OMX keeps plans, logs, memory, and runtime mode under a .omx/ directory. On macOS and Linux it can run the leader in a detached tmux session so it can manage HUD and runtime panes, launch behaviour is controlled with flags like --direct or --tmux, or an OMX_LAUNCH_POLICY environment variable. There is also an official Codex plugin layout in the repo with marketplace metadata, separate from the legacy install path. You would reach for OMX if you already use Codex and want a more opinionated runtime around it, repeatable workflows, specialist roles, and durable state across sessions. The README cautions that the recommended default is macOS or Linux with the Codex CLI, native Windows and the Codex App are not the default and may behave inconsistently. Requirements include Node.js 20+ and Codex login.