Autonomous AI released OpenHarness, an open-source tool for managing coding agents. It supports Claude Code, Codex, Cursor and others. It lets users run agents on multiple machines in one window. Machines link via password without SSH keys or port forwarding. All data is end-to-end encrypted. The app is native, not Electron, and keeps running when closed. It supports local models via Grid, Ollama, MLX-LM and vLLM. The project is fully open source. Users can build from source or download the app. It also enables agents to work in Blender, CircuitJS and MuJoCo.