October Harness is a serious open-source coding agent built to work alone and with a team. Use it interactively in a terminal, run one-shot commands, consume structured JSON, drive a persistent process through RPC, or embed the SDK inside another application.
The harness supports October inference alongside supported subscriptions, API keys, local models, and compatible provider endpoints. It preserves its own process identity, working directory, credentials, tools, permissions, and session history.
When attached to October Bus, the same harness can discover peers, receive durable work, delegate tasks, exchange correlated replies, publish lifecycle state, and request human input. The harness remains useful without October Desktop, while October adds the visual canvas and product experience around it.
Install the package with npm install -g --ignore-scripts @october-dev/october,
run october login, enter a project directory, and start october.
Read the source, documentation, contribution guide, and current roadmap in the
October Harness repository.