Routes new BB threads using task difficulty, live provider quota, benchmark capability, and a configurable cost preference. Each submission first runs a short hidden classification turn on one of your installed providers, which may not be the one the thread ends up on.
Add, choose, configure, route, or coordinate who runs a thread.
HandoffMoves a whole session between agents and machines in both directions: hands a bb thread's rendered transcript to another provider (optionally on another enrolled machine, carrying uncommitted work as a patch), or adopts a Claude Code, Codex, Gemini CLI or OpenCode session from your terminal as a bb thread in the same directory.
Vedran Burojević151
BotsAdds a Bots panel to the BB sidebar where you create named bots with their own instructions, provider, model, reasoning level and optional project, then chat with them; each bot's instructions are bound per-thread, so a persona applies only inside that bot's own chats.
Prakash Chokalingam102
Google Antigravity (ACP)Adds Google Antigravity as a bb agent provider through its official ACP server (agy_acp_server.par), with the same provider bridge as bb's built-in ACP agents.
rawizhere77
Jacob Miller