oh-my-codex (OMX)

Start Codex stronger, then let OMX add better prompts, workflows, and runtime help when the work grows.

Website: https://yeachan-heo.github.io/oh-my-codex-website/

Docs: Getting Started · Agents · Skills · Integrations · Demo · OpenClaw guide

Community: Discord — shared OMX/community server for oh-my-codex and related tooling.

Official project and package

The official/original OMX project is this repository, Yeachan-Heo/oh-my-codex, and the official npm package for this project is oh-my-codex. Install this project with npm install -g oh-my-codex (or alongside Codex CLI as shown below).

Third-party projects or forks that use names such as “OMX v2” are not official continuations, replacements, or release lines for this repository unless this README or the docs explicitly say so. When in doubt, trust this repository and the oh-my-codex package as the official install target.

OMX is a workflow layer for OpenAI Codex CLI.

🚨 CAUTION — RECOMMENDED DEFAULT ONLY: macOS or Linux with Codex CLI. OMX is primarily designed and actively tuned for that path. Native Windows and Codex App are not the default experience, may break or behave inconsistently, and currently receive less support.

It keeps Codex as the execution engine and makes it easier to:

• start a stronger Codex session by default
• run one consistent workflow from clarification to completion
• invoke the canonical default workflow with $deep-interview, $ralplan, and $ultragoal
• keep project guidance, plans, logs, and state in .omx/

Core Maintainers

Role	Name	GitHub
Creator & Lead	Yeachan Heo	@Yeachan-Heo
Maintainer	HaD0Yun	@HaD0Yun

Ambassadors

Name	GitHub
Sigrid Jin	@sigridjineth

Top Collaborators

Name	GitHub
HaD0Yun	@HaD0Yun
Junho Yeo	@junhoyeo
JiHongKim98	@JiHongKim98
Lor	@gobylor
HyunjunJeon	@HyunjunJeon

Recommended default flow

If you want the default OMX experience, start here:

Choose one install path. If Codex CLI is already installed (Homebrew, npm, or another supported method):

codex --version
npm install -g oh-my-codex
omx setup
omx --madmax --high

If you do not have Codex CLI yet and want npm to manage it:

npm install -g @openai/codex
npm install -g oh-my-codex
omx setup

Do not run a combined npm install -g @openai/codex oh-my-codex over an existing Homebrew-owned codex binary such as /opt/homebrew/bin/codex; npm may fail with EEXIST when @openai/codex tries to create the same binary. OMX only needs a working, authenticated codex command on PATH; it does not require Codex to be installed through npm.

On a real oh-my-codex version bump, the global npm install now prints an explicit reminder instead of launching omx setup automatically. When you're ready, run omx setup manually or use omx update to check npm and then run the same setup refresh path.

OMX also checks for npm updates at launch on a throttled cadence and prompts before scheduling the update after the current session exits. Set OMX_AUTO_UPDATE=0 to disable the launch-time check, or set OMX_AUTO_UPDATE=defer to schedule the same deferred update without prompting.

Codex plugin install note: this repo also ships an official Codex plugin layout at plugins/oh-my-codex with marketplace metadata in .agents/plugins/marketplace.json. That plugin bundles the mirrored skill surface plus plugin-scoped companion metadata for official Codex lifecycle hooks, optional MCP compatibility servers, and apps. It is still not a replacement for npm install -g oh-my-codex plus omx setup: plugin-scoped hooks launch the installed omx CLI, legacy setup mode installs native agents and prompts, and plugin setup mode relies on plugin discovery for bundled skills while archiving/removing legacy OMX-managed prompts/native-agent TOMLs so stale role files cannot shadow plugin behavior.

Then work normally inside Codex:

$deep-interview "clarify the authentication change"
$ralplan "approve the auth plan and review tradeoffs"
$ultragoal "turn the approved plan into durable Codex goals"

That is the main path. Before you treat the runtime as ready, run the quick-start smoke test below: omx doctor verifies the install shape, while omx exec proves the active Codex runtime can actually authenticate and complete a model call from the current environment. Start OMX strongly, clarify first when needed, approve the plan, then use $ultragoal as the default durable completion wrapper. Use $team inside that execution path only when a specific Ultragoal story needs coordinated parallel work; use $ralph when you intentionally want a single-owner completion loop instead of a durable multi-goal run.

What OMX is for

Use OMX if you already like Codex and want a better day-to-day runtime around it:

• a standard workflow built around $deep-interview -> $ralplan -> $ultragoal
• durable multi-goal handoffs with $ultragoal and .omx/ultragoal artifacts as the default completion path after planning
• specialist roles and supporting skills when the task needs them
• project guidance through scoped AGENTS.md
• durable state under .omx/ for plans, logs, memory, and mode tracking

If you want plain Codex with no extra workflow layer, you probably do not need OMX.

Quick start

Requirements

• Node.js 20+
• Codex CLI installed, verified with codex --version, and authenticated (Homebrew or npm are both fine; do not reinstall @openai/codex with npm if Homebrew already owns codex)
• Codex auth configured and visible in the same shell/profile that will run OMX
• tmux on macOS/Linux if you want the recommended durable team runtime
• psmux on native Windows only if you intentionally want the less-supported Windows team path

A good first session

After install, check both boundaries:

omx doctor
codex login status
omx exec --skip-git-repo-check -C . "Reply with exactly OMX-EXEC-OK"

omx doctor catches missing OMX files, hooks, and runtime prerequisites. The real smoke test catches auth, profile, and provider/base-URL problems that only appear when Codex performs an actual request.

Launch OMX the recommended way:

omx --madmax --high

On macOS/Linux interactive terminals with tmux available, this starts the leader in OMX-managed detached tmux by default so the HUD/runtime panes can be created and recovered.

If you want a one-off launch with no OMX tmux/HUD management, use --direct:

omx --direct --yolo

For a persistent shell/profile preference, set an environment policy:

OMX_LAUNCH_POLICY=direct omx --yolo

Return to the auto/default behavior with:

unset OMX_LAUNCH_POLICY

CLI policy flags win over the environment, and the last CLI policy flag before -- wins:

OMX_LAUNCH_POLICY=direct omx --tmux --yolo

Use OMX_LAUNCH_POLICY=direct|tmux|detached-tmux|auto. This iteration only adds CLI and environment controls; it intentionally does not add a config-file setting. If you run --direct from inside an existing tmux pane, OMX will not create HUD splits, enable mouse mode, or wrap extended-key handling, but the process still runs inside that already-open terminal pane.

Then try the canonical workflow:

$deep-interview "clarify the authentication change"
$ralplan "approve the safest implementation path"
$ultragoal "turn the approved path into durable Codex goals"

Use $team when an active Ultragoal story needs coordinated parallel work, or $ralph when one persistent owner should keep pushing to completion without a multi-goal ledger.

A simple mental model

OMX does not replace Codex.

It adds a better working layer around it:

• Codex does the actual agent work
• OMX role keywords make useful roles reusable
• OMX skills make common workflows reusable
• .omx/ stores plans, logs, memory, and runtime state

Most users should think of OMX as better task routing + better workflow + better runtime, not as a command surface to operate manually all day.

Start here if you are new

1. If Codex CLI already exists, verify it with codex --version and install or update OMX with npm install -g oh-my-codex; otherwise install @openai/codex separately first if you want npm to manage Codex
2. After install or real OMX version bumps, run omx setup yourself when you're ready, or use omx update when you also want npm to check for and install the latest build before refreshing setup
3. Run omx doctor
4. Run a real execution smoke test: codex login status and omx exec --skip-git-repo-check -C . "Reply with exactly OMX-EXEC-OK"
5. Launch with omx --madmax --high
6. Use $deep-interview "..." when the request or boundaries are still unclear
7. Use $ralplan "..." to approve the plan and review tradeoffs
8. Use $ultragoal "..." to turn the approved plan into durable goals and ledger checkpoints

Recommended workflow

1. $deep-interview — clarify scope when the request or boundaries are still vague.
2. $ralplan — turn that clarified scope into an approved architecture and implementation plan.
3. $ultragoal — make the approved plan durable as sequential Codex goals with .omx/ultragoal ledger checkpoints.

Inside an Ultragoal story, use $team only when that story benefits from coordinated parallel execution. Use $ralph as an intentional alternate completion loop when you do not need a durable multi-goal ledger.

Common in-session surfaces

Surface	Use it for
$deep-interview "..."	clarifying intent, boundaries, and non-goals
$ralplan "..."	approving the implementation plan and tradeoffs
$ultragoal "..."	durable multi-goal completion after the approved plan
$ralph "..."	persistent completion and verification loops
$team "..."	coordinated parallel execution when the work is big enough
/skills	browsing installed skills and supporting helpers

Advanced / operator surfaces

These are useful, but they are not the main onboarding path.

Team runtime

Use the team runtime when you specifically need durable tmux/worktree coordination, not as the default way to begin using OMX. In Codex App or plain outside-tmux sessions, treat omx team as a tmux-runtime shell surface rather than a directly available in-app workflow; launch OMX CLI from shell first if you actually want team execution.

omx team 3:executor "fix the failing tests with verification"
omx team status <team-name>
omx team resume <team-name>
omx team shutdown <team-name>

Setup, doctor, and HUD

These are operator/support surfaces:

• Codex plugin marketplace install/discovery can cache the plugin under ${CODEX_HOME:-~/.codex}/plugins/cache/$MARKETPLACE_NAME/oh-my-codex/$VERSION/ (local installs may use local as the version identifier); that packaged plugin includes plugin-scoped companion metadata for official Codex lifecycle hooks, optional MCP compatibility servers, and apps (MCP/apps disabled by default), so it is still paired with the installed omx CLI for runtime execution
• omx setup installs prompts, skills, AGENTS scaffolding, .codex/config.toml, and (for legacy installs or older Codex without plugin_hooks) OMX-managed native Codex hooks in .codex/hooks.json
  • setup refresh preserves non-OMX hook entries in .codex/hooks.json and only rewrites OMX-managed wrappers
  • omx setup --merge-agents preserves existing AGENTS.md guidance while inserting or refreshing generated OMX sections between <!-- OMX:AGENTS:START --> / <!-- OMX:AGENTS:END -->; without --merge-agents or --force, non-interactive setup keeps skipping existing AGENTS.md files
  • omx uninstall removes OMX-managed wrappers from .codex/hooks.json but keeps the file when user hooks remain
• omx update checks npm immediately, installs the newest global OMX build, then reruns the same interactive setup refresh path
• launch-time update checks are throttled and prompt by default; use OMX_AUTO_UPDATE=0 to disable them or OMX_AUTO_UPDATE=defer to schedule deferred updates without a prompt
• fresh OMX-managed gpt-5.5 config seeding now recommends model_context_window = 250000 and model_auto_compact_token_limit = 200000, but only when those keys are missing
• .omx-config.json model/env routing is documented in the model/env routing reference; only edit keys supported by your installed OMX version
• omx doctor verifies the install when something seems wrong; it does not prove that the active Codex profile can make an authenticated model call
• omx hud --watch is a monitoring/status surface, not the primary user workflow

For non-team sessions, native Codex hooks are now the canonical lifecycle surface:

• plugins/oh-my-codex/hooks/hooks.json = official plugin-scoped hook registrations for plugin installs
• .codex/hooks.json = legacy/fallback native Codex hook registrations preserved for legacy installs and older Codex versions
• .omx/hooks/*.mjs = OMX plugin hooks
• omx tmux-hook / notify-hook / derived watcher = tmux + runtime fallback paths

See Codex native hook mapping for the current native / fallback matrix.

Troubleshooting false-green readiness

A green omx doctor means the install and local runtime wiring look sane. If real execution still fails, check the environment Codex actually uses:

• Run codex login status and omx exec --skip-git-repo-check -C . "Reply with exactly OMX-EXEC-OK" from the same shell/profile that will launch OMX.
• In custom HOME, profile, container, or service shells, confirm the active ~/.codex (or CODEX_HOME) is the one with the expected auth and config. Do not assume your normal user ~/.codex is visible there.
• If you depend on a local OpenAI-compatible proxy, confirm the active ~/.codex/config.toml includes the expected openai_base_url; otherwise a proxy-issued key can be sent to the default endpoint and fail with 401 Unauthorized, Missing bearer or basic authentication in header, or Incorrect API key provided.
• If omx doctor --team or resume reports a stale team such as resume_blocker or a missing tmux session, clean the dead runtime state before retrying:

omx team shutdown <team-name> --force --confirm-issues
omx cancel
omx doctor --team

Only use the forced team shutdown for a team you have confirmed is dead or intentionally abandoned.

If Shift+Enter still submits instead of inserting a newline inside an OMX-managed tmux session, see Troubleshooting execution readiness. Current OMX already enables tmux extended-key forwarding around its own Codex launch paths, so a persistent failure is usually a tmux terminal-capability/discoverability problem rather than a net-new OMX feature gap.

Explore and sparkshell

• omx explore --prompt "..." is for read-only repository lookup
• omx sparkshell <command> is for shell-native inspection and bounded verification
• when omx_wiki/ exists, omx explore can inject wiki-first context before falling back to broader repository search
• fallback boundaries are explicit: sparkshell-backend fallback is reported on stderr, and spark-model fallback emits stderr metadata plus an ## OMX Explore fallback notice in stdout so users can see when cost/behavior may differ from the low-cost path
• sparkshell env overrides are intentionally narrow: OMX_SPARKSHELL_BIN selects a native sidecar path, OMX_SPARKSHELL_MODEL selects the primary summary model, OMX_SPARKSHELL_FALLBACK_MODEL selects the retry model, OMX_SPARKSHELL_MODEL_INSTRUCTIONS_FILE selects summary instructions, and OMX_SPARKSHELL_SUMMARY_TIMEOUT_MS controls the local API summary timeout

Examples:

omx explore --prompt "find where team state is written"
omx sparkshell git status
omx sparkshell --tmux-pane %12 --tail-lines 400

Wiki

• omx wiki is the CLI-first JSON surface for wiki operations; omx_wiki MCP is explicit compatibility only
• wiki data lives as repository project knowledge under omx_wiki/
• the wiki is markdown-first and search-first, not vector-first

Examples:

omx wiki list --json
omx wiki query --input '{"query":"session-start lifecycle"}' --json
omx wiki lint --json
omx wiki refresh --json

Platform notes for team mode

omx team works best on macOS/Linux with tmux. Native Windows remains a secondary path, and WSL2 is generally the better choice if you want a Windows-hosted setup. On native Windows, OMX accepts psmux as the tmux-compatible binary for the existing tmux-backed paths it already uses.

Platform	Install
macOS	brew install tmux
Ubuntu/Debian	sudo apt install tmux
Fedora	sudo dnf install tmux
Arch	sudo pacman -S tmux
Windows	winget install psmux
Windows (WSL2)	sudo apt install tmux

Known issues

Intel Mac: high syspolicyd / trustd CPU during startup

On some Intel Macs, OMX startup — especially with --madmax --high — can spike syspolicyd / trustd CPU usage while macOS Gatekeeper validates many concurrent process launches.

If this happens, try:

• xattr -dr com.apple.quarantine $(which omx)
• adding your terminal app to the Developer Tools allowlist in macOS Security settings
• using lower concurrency (for example, avoid --madmax --high)

Documentation

• Getting Started
• Demo guide
• Wiki feature
• Agent catalog
• Skills reference
• Codex native hook mapping
• GitHub / PR / package identity pipeline
• Integrations
• Troubleshooting execution readiness
• OpenClaw / notification gateway guide
• Contributing
• Changelog

Languages

• English
• 한국어
• 日本語
• 简体中文
• 繁體中文
• Tiếng Việt
• Español
• Português
• Русский
• Türkçe
• Deutsch
• Français
• Italiano
• Ελληνικά
• Polski
• Українська

Contributors

Role	Name	GitHub
Creator & Lead	Yeachan Heo	@Yeachan-Heo
Maintainer	HaD0Yun	@HaD0Yun

Star History

License

MIT