Big Agentic Brain (BAB) delivers swarm intelligence for AI agents across an entire organization, ensuring that once one agent solves an issue, all other agents can leverage the solution. Acting as an organizational knowledge layer between local repository instructions and static wikis, it provides governed, categorized memory entries (learnings, practices, standards, and decisions) that are continuously vetted, ranked, and updated by agents and human teammates. Beyond persistent recall, BAB equips agent fleets with inter-agent messaging, shared reminders, temporary file transfers, and atomic key-value operations for locking and pacing bulk work. Easily deployed as a single self-hosted container with SQLite, it operates over remote HTTP or standard MCP without needing external LLM keys.