Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
TeammatesArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release
What
When a message arrives in a teammate's mailbox (used for agent-to-agent communication), Claude Code now runs each entry through the session.receive hook point before delivering it. If the hook marks an entry as consumed, that entry is dropped and logged instead of being shown to the agent.
Why
This lets a session.receive hook filter or intercept incoming teammate messages before the agent ever sees them, building on the hook's existing role in handling incoming messages.
