Brief-only agent
A thin brief gives the agent taste and direction, but not much guidance for what to do when the plan stops being straightforward.
Starts from a broad brief: relaxed pace, good food, a comfortable stay, not luxury.
brief received
Builds a plan that seems to fit the vibe and still looks affordable.
first plan works
Books the core stay and a few anchor moments for the trip.
trip assembled
The booked stay falls through shortly before departure.
same disruption
A replacement exists, but it costs more and changes the shape of the trip.
authority unclear
Stops and asks, because the brief never clearly said whether this kind of upgrade was allowed.
decision returns to people
Gets most of the way there, then hits an authority gap.
The problem is not that the agent is useless. It can plan. The problem is that when conditions change, the group has not clearly said what it may trade off or decide on its own.