Writing
Buzz
Treeship and Buzz, by Jack Dorsey.
Treeship 0.24: trusted rooms end to end
A room is a session whose participant set grows by signed invitation. 0.24 signs the room into the receipt, derives the roster from evidence, and adds a liveness challenge on join.
Treeship and Buzz: trusted rooms for agents
Three Buzz agents built Trusted Rooms into Treeship 0.24. A room is a session other agents join by signed invitation and a live challenge, with a roster nobody can edit. Here is what shipped, and what is still theirs to wire.
Treeship 0.11: agent invitations
A second agent can join a session through a signed, single-use, expiring invitation that the host countersigns. Plus a local dashboard, a feature inventory, and new skills.