Oh My OpenAgent

Oh My OpenAgent (omo) is an open-source agent harness for software development that splits work across 11 specialized agents and routes each task to the model best suited for it. It ships in two editions, a full OpenCode build and a lighter Codex CLI build, and exposes a Team Mode that runs up to 8 agents in parallel, with session continuity via a 'boulder.json' resume file and 60+ lifecycle hooks for customization.

It is aimed at developers who want more structure than a single chat-style coding agent and don't mind wiring a config-heavy harness around their existing CLI. The signature 'Ultra Work' (ulw) mode kicks off autonomous multi-step runs that separate planning from execution and then independently verify the result. Pricing isn't published on the site because the framework itself is free under the SUL-1.0 license; you pay only the underlying model providers.

Under the hood it brokers between Claude Opus 4.7 Max for orchestration, plus Sonnet 4.6, multiple GPT 5.5 variants, Gemini 3.1 Pro, and others depending on the task category. There's no hosted SaaS or REST API — it's a local framework you install on top of OpenCode or Codex CLI, so usability depends on how comfortable you are managing model keys and CLI tooling.