Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description adds real context beyond them: the fixed count of 12 questions, that each question exposes its accepted answer values, and that money ranges, delivery apps and review sites are localized to the restaurant's country.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.