Oh My OpenAgent
An open-source agent harness for CLI-based AI coding workflows, featuring specialized agents, parallel execution, session continuity, and 40+ lifecycle hooks.
At a Glance
Pricing
Fully open-source under SUL-1.0. Free to install and use via bunx oh-my-opencode install.
Engagement
Available On
Listed Mar 2026
About Oh My OpenAgent
Oh My OpenAgent is a battle-tested, open-source agent harness built on top of OpenCode that orchestrates specialized AI agents for complex software engineering tasks. With 39.4k GitHub stars and 1.2M+ downloads, it provides a production-proven framework for autonomous coding workflows. The system separates planning from execution, routes tasks to the right model based on intent, and verifies results independently — all from a single CLI command.
- Ultra Work Mode (
ulw) — Type three letters to trigger auto-planning, deep research, parallel agents, and self-correction loops with zero babysitting. - Sisyphus Orchestrator — The primary orchestrator that parses implicit requirements, maps your codebase, delegates to specialists, and resumes interrupted sessions via
boulder.json. - Prometheus & Atlas Pipeline — Prometheus handles strategic planning (never writes code), while Atlas executes verified plans and accumulates wisdom across tasks.
- Hephaestus Deep Worker — Fires 2–5 parallel explore agents before writing any code, built for deep architectural reasoning and complex debugging.
- 11 Specialized Agents — Includes Oracle (architecture), Librarian (docs search), Explore (codebase grep), Metis (plan gap analysis), Momus (ruthless plan review), and dynamic on-demand agents.
- Category & Skill Routing — Intent-based routing maps requests to categories like
ultrabrain,visual-engineering,quick, orwriting, each backed by the optimal model. - 40+ Lifecycle Hooks — Extensible hook system covering session recovery, context compaction, comment checking, background notifications, and more.
- MCP Integrations — Built-in MCP servers for web search (Exa), documentation retrieval (Context7), and GitHub code search (grep_app).
- Browser Automation — Supports Playwright for full browser automation and agent-browser for lightweight scraping and lookups.
- Model Optimization — Expensive models (Claude Opus, GPT-5 Codex) for planning; cheap models (Claude Haiku, Gemini Flash) for routine work to maximize output per dollar.
- Session Continuity — Boulder system tracks active work so interrupted sessions resume exactly where they stopped with zero context loss.
- Highly Configurable — Project-level and user-level JSON config files with JSONC support; override models, prompts, permissions, temperature, and more per agent.
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Pricing
Open Source
Fully open-source under SUL-1.0. Free to install and use via bunx oh-my-opencode install.
- 11 specialized agents
- Ultra Work Mode (ulw)
- 40+ lifecycle hooks
- Session continuity via boulder.json
- MCP integrations (Exa, Context7, grep_app)
Capabilities
Key Features
- Ultra Work Mode (ulw) for fully autonomous task execution
- Sisyphus orchestrator with session continuity via boulder.json
- Prometheus strategic planner and Atlas master executor pipeline
- Hephaestus deep worker with parallel explore agents
- 11 specialized built-in agents
- Dynamic agent assembly with category and skill routing
- 40+ lifecycle hooks for extensibility
- MCP integrations: Exa web search, Context7 docs, grep_app
- Playwright and agent-browser automation
- Model optimization: expensive models for planning, cheap for routine work
- LSP configuration support
- Background task concurrency management
- Custom skills definition
- JSONC config with project-level and user-level overrides
- Independent verification on all subagent outputs
