Unreal Agent moves tool waits out of the model loop

Unreal Labs released Unreal Agent, an async-first harness that records a tool call as in progress while it continues in the background, then appends the final result and calls the model. Why it matters: The notable idea is architectural: waiting, polling and heartbeats sit in the harness rather than in model turns. It gives teams a concrete design to inspect when they need user steering during long-running tools, without treating the vendor’s cost-efficiency claim as established.