[!NOTE] Multi-Harness Agent OS Refactor in Progress

We are restructuring the codebase to support multiple agent harnesses (OpenCode, Codex, Pi, and others). If you are interested in contributing, please read the ROADMAP first. PRs related to roadmap work should use the ROADMAP label.

[!TIP] Building in Public

The maintainer builds and maintains oh-my-openagent in real-time with Jobdori, an AI assistant running on a heavily customized fork of OpenClaw. Every feature, every fix, every issue triage — live in our Discord.

→ Watch it happen in #building-in-public

[!NOTE]

OmO is maintained by Jobdori, the AI assistant shown above. Meet your own Jobdori — Dori. Join the waitlist here.

[!TIP] Be with us!

	Join our Discord community to connect with contributors and fellow oh-my-openagent users.
	Updates for oh-my-openagent used to be posted on my X account.

Since it was mistakenly suspended, @justsisyphus now posts updates on my behalf. |

| | Follow @code-yeongyu on GitHub for more projects. |

<a href="https://github.com/code-yeongyu/oh-my-openagent#oh-my-openagent"></a>

This is oh-my-openagent, running Team Mode. With Kimi K2.6 and GPT-5.5.

Anthropic blocked OpenCode because of us. Yes, this is true. They want you locked in. Claude Code is a nice prison, but it's still a prison.

You don't need to pay $200 for 2 hours of work. The future isn't picking one winner; it's orchestrating them all. Models get cheaper every month. Smarter every month. No single provider will dominate. We're building for that open market, not their walled gardens.

English | 한국어 | 日本語 | 简体中文

Reviews

"It made me cancel my Cursor subscription. Unbelievable things are happening in the open source community." - Arthur Guiot

"If Claude Code does in 7 days what a human does in 3 months, Sisyphus does it in 1 hour. It just works until the task is done. It is a discipline agent."

• B, Quant Researcher

"Knocked out 8000 eslint warnings with Oh My Opencode, just in a day"

• Jacob Ferrari

"I converted a 45k line tauri app into a SaaS web app overnight using Ohmyopencode and ralph loop. Started with interview me prompt, asked it for ratings and recommendations on the questions. It was amazing to watch it work and to wake up this morning to a mostly working website!" - James Hargis

"use oh-my-opencode, you will never go back"

• d0t3ch

"I haven't really been able to articulate exactly what makes it so great yet, but the development experience has reached a completely different dimension." - 苔硯:こけすずり

"Experimenting with open code, oh my opencode and supermemory this weekend to build some minecraft/souls-like abomination." "Asking it to add crouch animations while I go take my post-lunch walk. [Video]" - MagiMetal

"You guys should pull this into core and recruit him. Seriously. It's really, really, really good."

• Henning Kilset

"Hire @yeon_gyu_kim if you can convince him, this dude has revolutionized opencode."

• mysticaltech

"Oh My OpenCode Is Actually Insane" - YouTube - Darren Builds AI

Oh My OpenAgent

You're juggling Claude Code, Codex, and random OSS models. Configuring workflows. Debugging agents.

We did the work. Tested everything. Kept what actually shipped.

Install oh-my-openagent. Type ultrawork. Done.

Installation

oh-my-openagent ships in two editions of the same product:

• Ultimate Edition (omo for OpenCode) — full omo. 11 agents, 54+ lifecycle hooks, 5 built-in MCPs, all slash commands, Team Mode, ulw-loop, ultrawork, hashline edits — everything.
• Light Edition (omo for Codex CLI) — the portable components that fit Codex's plugin system: rules, comment-checker, lsp, ultrawork, ulw-loop, start-work-continuation, and telemetry. No agent orchestration, no team_* tools, no built-in MCPs beyond LSP — Codex CLI's own surface does that work.

Pick the edition(s) you want.

TL;DR

--platform defaults to opencode (Ultimate). The bunx lazycodex install alias is a shortcut for bunx omo install --platform=codex; use whichever reads cleaner.

For Humans

Strongly recommended: let an LLM agent install this for you. The Ultimate edition setup involves subscription detection, model selection across 11 agents, and per-provider authentication — humans fat-finger these. An LLM agent reads the full guide and walks every step correctly.

Paste this prompt into Claude Code, AmpCode, Cursor, or any agent:

Install and configure oh-my-openagent by following the instructions here:
https://raw.githubusercontent.com/code-yeongyu/oh-my-openagent/refs/heads/dev/docs/guide/installation.md

If you only want the Light edition (Codex CLI), the installer asks whether to configure Codex for autonomous full-permissions mode. You can run it yourself in one line:

bunx omo install --platform=codex
# equivalent:
bunx lazycodex install
# non-interactive recommended mode:
bunx lazycodex install --no-tui --codex-autonomous

Do not use npm install -g, bun add -g, or bun install -g. Global installation is not officially supported — oh-my-openagent is a plugin that must resolve from where OpenCode/Codex loads plugins. Always invoke via bunx.

For LLM Agents

Fetch the full guide and follow it step by step:

curl -fsSL https://raw.githubusercontent.com/code-yeongyu/oh-my-openagent/refs/heads/dev/docs/guide/installation.md

The guide covers: platform selection, the subscription interview, provider authentication (Anthropic / Gemini / Copilot / Z.ai / OpenCode Zen), the agent-to-model matching matrix, modes (ultrawork, search, analyze, team, hyperplan), slash commands, the Light edition's 5 Codex components, Team Mode, and uninstall. Don't summarize it; read it end to end.

Note on package and command names

The published npm package and CLI binary are still named oh-my-opencode (dual-published as oh-my-openagent during the rename transition). Inside opencode.json, the compatibility layer prefers the plugin entry oh-my-openagent, while legacy oh-my-opencode entries still load with a warning. Plugin config files still commonly use oh-my-opencode.json[c]; both legacy and renamed basenames are recognized.

All four bunx aliases - oh-my-opencode, oh-my-openagent, omo, lazycodex - invoke the same compiled CLI. omo is the recommended short form for documentation and prompts. lazycodex is a single-purpose npm/bin alias: bunx lazycodex install is exactly equivalent to bunx omo install --platform=codex. It is not the Codex marketplace name. Codex sees marketplace sisyphuslabs and plugin omo, enabled as omo@sisyphuslabs.

Telemetry

Anonymous telemetry is enabled by default to track active installations (DAU/WAU/MAU). For both products, a single event is sent at most once per UTC day per machine using a SHA256-hashed installation identifier (never the raw hostname), and PostHog person profiles are not created. The main plugin emits oh_my_openagent_daily_active; the Codex CLI Light edition emits omo_codex_daily_active from two sources (install_completed and session_start).

Opt out per product:

• Main plugin: OMO_DISABLE_POSTHOG=1 or OMO_SEND_ANONYMOUS_TELEMETRY=0
• Codex CLI Light edition: OMO_CODEX_DISABLE_POSTHOG=1 or OMO_CODEX_SEND_ANONYMOUS_TELEMETRY=0 (the global flags also disable Codex)

See Privacy Policy and Terms of Service.

Skip This README

We're past the era of reading docs. Just paste this into your agent:

Read this and tell me why it's not just another boilerplate: https://raw.githubusercontent.com/code-yeongyu/oh-my-openagent/refs/heads/dev/README.md

ROADMAP

We are restructuring the codebase to support multiple agent harnesses (OpenCode, Codex, Pi, Claude Code, and others). The most urgent work is the package layering refactor: separating pure TypeScript core logic, MCP servers, skills, and adapter shims into distinct layers so the same logic can be reused across harnesses without duplication.

If you want to contribute, read the ROADMAP first. PRs related to this refactor should use the ROADMAP label so we can track them.

Highlights

🪄 ultrawork

You're actually reading this? Wild.

Install. Type ultrawork (or ulw). Done.

Everything below, every feature, every optimization: you don't need to know any of it. It just works.

Even with only the following subscriptions, ultrawork works well (this project is not affiliated; these are personal recommendations):

• ChatGPT Subscription ($20)
• Kimi Code Subscription ($19)
• GLM Coding Plan ($10)
• If you're eligible for pay-per-token, using Kimi and Gemini models won't cost much.

Edition legend. Ultimate = OpenCode-only (bunx omo install). Light = Codex CLI-only (bunx omo install --platform=codex). Both = shipped in both editions, often with slightly different implementations under the hood.

Discipline Agents

Sisyphus (claude-opus-4-7 / kimi-k2.6 / glm-5.1 ) is your main orchestrator. He plans, delegates to specialists, and drives tasks to completion with aggressive parallel execution. He does not stop halfway.

Hephaestus (gpt-5.5) is your autonomous deep worker. Give him a goal, not a recipe. He explores the codebase, researches patterns, and executes end-to-end without hand-holding. The Legitimate Craftsman.

Prometheus (claude-opus-4-7 / kimi-k2.6 / glm-5.1 ) is your strategic planner. Interview mode: he asks questions, identifies scope, and builds a detailed plan before a single line of code is touched.

Every agent is tuned to its model's specific strengths. No manual model juggling. Learn more →

Anthropic blocked OpenCode because of us. That's why Hephaestus is called "The Legitimate Craftsman." The irony is intentional.

We run best on Opus, but Kimi K2.6 + GPT-5.5 already beats vanilla Claude Code. Zero config needed.

Team Mode (v4.0)

One agent is fast. A coordinated team is devastating.

Team Mode turns oh-my-openagent from "one agent with subagents" into a real multi-agent system. A lead agent orchestrates a team of category-specialized members, all running in parallel and communicating through dedicated tools (team_create, team_send_message, team_task_create, team_status, ...). Watch every member work simultaneously in a tmux layout with focus + grid windows.

// .opencode/oh-my-openagent.jsonc
{
  "team_mode": {
    "enabled": true,
    "max_parallel_members": 4,
    "tmux_visualization": true
  }
}

Restart opencode and the team_* tool family unlocks. Two skills already ride on top:

• hyperplan — 5 hostile agents tear apart your plan from orthogonal angles before a single line of code is written.
• security-research — 3 vulnerability hunters + 2 PoC engineers audit your codebase in parallel, with severity calibrated by actual exploitability.

Off by default. Enable it when you want it. Full Team Mode guide →

Agent Orchestration

When Sisyphus delegates to a subagent, it doesn't pick a model. It picks a category. The category maps automatically to the right model:

The agent says what kind of work it needs; the harness picks the right model. ultrabrain now routes to GPT-5.5 xhigh by default. You touch nothing.

Claude Code Compatibility

You dialed in your Claude Code setup. Good.

Every hook, command, skill, MCP, plugin works here unchanged. Full compatibility, including plugins.

World-Class Tools for Your Agents

LSP, AST-Grep, Tmux, and MCP, actually integrated, not duct-taped together.

• LSP: lsp_rename, lsp_goto_definition, lsp_find_references, lsp_diagnostics. IDE precision for every agent.
• AST-Grep: Pattern-aware code search and rewriting across 25 languages.
• Tmux: Full interactive terminal. REPLs, debuggers, TUI apps. Your agent stays in session.
• MCP: Web search, official docs, GitHub code search. All baked in.

Skill-Embedded MCPs

MCP servers eat your context budget. We fixed that.

Skills bring their own MCP servers. They spin up on demand, scoped to the task, and go away when done. The context window stays clean.

Codes Better. Hash-Anchored Edits

The harness problem is real. Most agent failures aren't the model's fault; it's the edit tool.

"None of these tools give the model a stable, verifiable identifier for the lines it wants to change... They all rely on the model reproducing content it already saw. When it can't - and it often can't - the user blames the model."

• Can Bölük, The Harness Problem

Inspired by oh-my-pi, we built Hashline. Every line the agent reads comes back tagged with a content hash:

11#VK| function hello() {
22#XJ|   return "world";
33#MB| }

The agent edits by referencing those tags. If the file has changed since the last read, the hash won't match and the edit is rejected before any corruption. No whitespace reproduction. No stale-line errors.

Grok Code Fast 1: 6.7% → 68.3% success rate, just from changing the edit tool.

Deep Initialization. /init-deep

Run /init-deep. It generates hierarchical AGENTS.md files:

project/
├── AGENTS.md              ← project-wide context
├── src/
│   ├── AGENTS.md          ← src-specific context
│   └── components/
│       └── AGENTS.md      ← component-specific context

Agents auto-read relevant context. Zero manual management.

Planning. Prometheus

Complex task? Don't prompt and pray.

/start-work calls Prometheus. He interviews you like a real engineer, identifies scope and ambiguities, and builds a verified plan before touching code. The agent knows what it's building before it starts.

Skills

Skills aren't just prompts. Each brings:

• Domain-tuned system instructions.
• Embedded MCP servers, on demand.
• Scoped permissions so agents stay in bounds.

Built-ins: playwright (browser automation), git-master (atomic commits, rebase surgery), frontend-ui-ux (design-first UI).

Add your own under .opencode/skills/*/SKILL.md or ~/.config/opencode/skills/*/SKILL.md.

Want the full feature breakdown? See the Features Documentation for agents, hooks, tools, MCPs, and everything else in detail.

New to oh-my-openagent? Read the Overview to understand what you have, or check the Orchestration Guide for how agents collaborate.

Uninstallation

To remove oh-my-openagent:

1. Remove the plugin from your OpenCode config

   Edit ~/.config/opencode/opencode.json (or opencode.jsonc) and remove either "oh-my-openagent" or the legacy "oh-my-opencode" entry from the plugin array:

   bashCopy

   # Using jq
   jq '.plugin = [.plugin[] | select(. != "oh-my-openagent" and . != "oh-my-opencode")]' \
       ~/.config/opencode/opencode.json > /tmp/oc.json && \
       mv /tmp/oc.json ~/.config/opencode/opencode.json
   

2. Remove configuration files (optional)

   bashCopy

   # Remove plugin config files recognized during the compatibility window
   rm -f ~/.config/opencode/oh-my-openagent.jsonc ~/.config/opencode/oh-my-openagent.json \
         ~/.config/opencode/oh-my-opencode.jsonc ~/.config/opencode/oh-my-opencode.json
   
   # Remove project config (if exists)
   rm -f .opencode/oh-my-openagent.jsonc .opencode/oh-my-openagent.json \
         .opencode/oh-my-opencode.jsonc .opencode/oh-my-opencode.json
   

3. Verify removal

   bashCopy

   opencode --version
   # Plugin should no longer be loaded
   

4. Remove omo-codex (Codex CLI Light edition)

   bashCopy

   rm -rf ~/.codex/plugins/cache/sisyphuslabs
   

   Then open ~/.codex/config.toml and remove [marketplaces.sisyphuslabs], [plugins."omo@sisyphuslabs"], and any [hooks.state."omo@sisyphuslabs:..."] blocks.

Features

Features you'll think should've always existed. Once you use them, you can't go back.

See full Features Documentation.

Quick Overview:

• Agents: Sisyphus (the main agent), Prometheus (planner), Oracle (architecture/debugging), Librarian (docs/code search), Explore (fast codebase grep), Multimodal Looker
• Background Agents: Run multiple agents in parallel like a real dev team
• LSP & AST Tools: Refactoring, rename, diagnostics, AST-aware code search
• Hash-anchored Edit Tool: LINE#ID references validate content before applying every change. Surgical edits, zero stale-line errors
• Context Injection: Auto-inject AGENTS.md, README.md, conditional rules
• Claude Code Compatibility: Full hook system, commands, skills, agents, MCPs
• Built-in MCPs: websearch (Exa), context7 (docs), grep_app (GitHub search) — injected at runtime by the plugin; not visible in opencode mcp list (see MCP docs)
• Session Tools: List, read, search, and analyze session history
• Productivity Features: Ralph Loop, Todo Enforcer, Comment Checker, Think Mode, and more
• Doctor Command: Built-in diagnostics (bunx oh-my-opencode doctor) verify plugin registration, config, models, and environment
• Model Fallbacks: fallback_models can mix plain model strings with per-fallback object settings in the same array
• File Prompts: Load prompts from files with file:// support in agent configurations
• Session Recovery: Automatic recovery from session errors, context window limits, and API failures
• Model Setup: Agent-model matching is built into the Installation Guide

Configuration

Opinionated defaults, adjustable if you insist.

See Configuration Documentation.

Quick Overview:

• Config Locations: User config plus walked .opencode/oh-my-openagent.json[c] configs up to $HOME; closest wins. Legacy oh-my-opencode.json[c] still works.
• JSONC Support: Comments and trailing commas supported
• Agents: Override models, temperatures, prompts, and permissions for any agent
• Built-in Skills: playwright (browser automation), git-master (atomic commits)
• Sisyphus Agent: Main orchestrator with Prometheus (Planner) and Metis (Plan Consultant)
• Background Tasks: Configure concurrency limits per provider/model
• Categories: Domain-specific task delegation (visual, business-logic, custom)
• Hooks: 54+ lifecycle hooks (61 with Team Mode), all configurable via disabled_hooks
• MCPs: Built-in websearch (Exa), context7 (docs), grep_app (GitHub search) — runtime-injected, not shown in opencode mcp list
• LSP: Full LSP support with refactoring tools
• Experimental: Aggressive truncation, auto-resume, and more

Author's Note

Want the philosophy? Read the Ultrawork Manifesto.

I burned through $24K in LLM tokens on personal projects. Tried every tool. Configured everything to death. OpenCode won.

Every problem I hit, the fix is baked into this plugin. Install and go.

If OpenCode is Debian/Arch, oh-my-openagent is Ubuntu/Omarchy.

Heavily influenced by AmpCode and Claude Code. Features ported, often improved. Still building. It's OpenCode.

Other harnesses promise multi-model orchestration. We ship it. Stability too. And features that actually work.

I'm this project's most obsessive user:

• Which model has the sharpest logic?
• Who's the debugging god?
• Who writes the best prose?
• Who dominates frontend?
• Who owns backend?
• What's fastest for daily driving?
• What are competitors shipping?

This plugin is the distillation. Take the best. Got improvements? PRs welcome.

Stop agonizing over harness choices. I'll research, steal the best, and ship it here.

Sounds arrogant? Have a better way? Contribute. You're welcome.

No affiliation with any project or model mentioned. Just personal experimentation.

99% of this project was built with OpenCode. I don't really know TypeScript, but I personally reviewed and largely rewrote this doc.

Loved by professionals at

• Indent
  • Makers of Spray (influencer marketing solution), vovushop (cross-border commerce platform), and vreview (AI commerce review marketing solution).
• Google
• Microsoft
• Vercel
• ELESTYLE
  • Makers of elepay (multi-mobile payment gateway) and OneQR (mobile application SaaS for cashless solutions).
• Deepgram

Special thanks to @junhoyeo for this amazing hero image.