Plannotator Multiplayer Blueprint Uses Durable Objects

This is a compelling pattern for collaborative agent workflows: Durable Objects provide room-level coordination without forcing developers to assemble a separate realtime stack.

• –Each review room can own authoritative state, simplifying annotation ordering and presence.
• –WebSockets enable live updates between collaborators and agents.
• –Multiplayer review makes agent-generated plans a shared workspace instead of a solo approval step.
• –Authentication, room expiration, conflict handling, and Durable Objects costs remain important production concerns.
• –The architecture is especially relevant for teams coordinating multiple coding agents around one plan.