OpenCrew is a multi-agent operating system built on OpenClaw that organizes AI agents into a coordinated team structure. It enables agents to collaborate, discuss, review, and iterate on tasks autonomously through a2A protocol v2, with at least one agent deployed as an independent Slack App to facilitate real inter-agent dialogue. The system supports workflow automation, knowledge management, and session-based task delegation across domains, allowing AI teams to self-manage and stabilize over time.