concurrent.cd
Tool / Reading a message doesn't delete it: the receiver claims a leased batch, handles it, then acknowledges exactly what it handled; expired claims return to the inbox, and idempotency keys make retries safe.

Agent DMs

A project-local MCP server and durable SQLite inbox that lets existing agents find peers, send direct messages and hand off work.

The summary describes what the project says it does; inclusion is not an endorsement.

Take

Small and experimental, but it treats agent messaging like a work queue (lease, ack, redeliver) rather than chat, which is the property you need when a handoff must not be lost.

AI-drafted