Microsoft Agent Framework adds Agent Channel for multi-agent messaging

Full analysis

Microsoft has launched Agent Channel in public preview as part of its Agent Framework, introducing a built-in communication primitive that allows AI agents to send structured, typed messages to one another without requiring custom routing code. The feature supports both request/response (synchronous) and fire-and-forget (asynchronous) messaging patterns, simplifying the wiring between agents in multi-agent systems — where multiple specialized AI agents coordinate to complete complex tasks.