Writing
#handoffs
Every post tagged handoffs.
Treeship 0.27: the custody handshake
Foreign work handed over A2A or MCP is refused until the other agent proves live key control, and the handoff receipt records that it did.
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 0.7: session receipts you can verify offline
A closed session now becomes a .treeship package with a Merkle root, a static verifier page, a public hub URL, and A2A middleware.