oh-my-openagent

Free

omo; the best agent harness - previously oh-my-opencode

Model APIsFreeFree tier

Type

Open Source

Visit Website GitHub (55.6k stars)

About oh-my-openagent

Oh My OpenAgent (formerly oh-my-opencode) is an open-source, battle-tested agent orchestration harness designed for autonomous coding and complex software engineering tasks. It features 11 specialized agents, 60+ lifecycle hooks, and supports two editions: OpenCode Ultimate (full plugin with Team Mode, background tasks, and 3-tier MCP) and Codex CLI Light (8 components for Codex integration). The system uses a primary orchestrator (Claude Opus 4.7 Max) and a Sisyphus agent that handles session continuity via boulder.json, allowing resumption after interruptions. Key capabilities include auto-planning, deep research, self-correction, parallel agents, Intent Gate, Codebase Assessment, Smart Delegation, and Independent Verification. Team Mode enables up to 8 agents running in parallel with real-time messaging. With 66.3k GitHub stars and 3.4M+ total downloads, it is production-proven and widely adopted.

Key Features

66.3k GitHub Stars and 3.4M+ total downloads

11 specialized agents for different tasks

60+ lifecycle hooks for deep integration

Auto-Planning, Deep Research, Self-Correction, Parallel Agents

Session continuity via boulder.json – resume after crashes

Two editions: OpenCode Ultimate and Codex CLI Light

Sisyphus agent for autonomous requirement parsing and delegation

Prometheus strategic planner (never writes code) and Atlas master executor

Intent Gate, Codebase Assessment, Smart Delegation, Independent Verification

Team Mode with up to 8 parallel agents and tmux support

Pros & Cons

Pros

Battle-tested and production-proven with 66.3k stars and 3.4M+ downloads
Extensive lifecycle hooks provide fine-grained control
Session continuity allows interruption recovery
Two editions cater to different needs (full vs lightweight)
Auto-planning and self-correction reduce manual oversight
Parallel agents and Team Mode speed up complex tasks
Open-source and free to use

Best For

Autonomous code generation and modificationComplex debugging and cross-domain synthesisDeep architectural reasoning and refactoringMulti-agent codebase exploration and gap analysisAutomated planning and execution of large software tasksBackground task running with session persistenceTeam-based parallel development workflows

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