Adds a preset menu to the New thread composer that sets provider, model, effort, and speed in one step, applies custom instructions to threads started with it, and opens by keyboard shortcut with number keys to pick.
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
Krzysztof Kraszewski