A run's trace used to appear when the run finished. It now streams while the run executes: each model step, tool call, and tool result lands in the dashboard as it happens, and the page keeps itself current without a manual refresh.
Proving a new routine gets faster because of it — you can watch the first manual run work through its instructions, catch a wrong variable or an over-broad tool grant immediately, and cancel instead of waiting for a result you can already see going sideways.