Check how many tasks are being added during cmd/t/a.go. If just one,
only output the text "Added". If multiple, output the full plan.
After setting the goal (cmd/g/s.go), tell the model it should prefer
adding multiple tasks in one invocation, but can fall back to one task
per invocation if it's having difficulties adding multiple. If it does
one per invocation, call np t after creating the tasks to see the
resulting list.