Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover readOnly, non-destructive, and idempotent behavior, so the bar is lower. The description adds the non-binding nature of the price ranges and the on-site confirmation, which is useful context. It does not disclose pagination or exact output structure, but given the annotations, this is sufficient transparency for a browsing tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.