Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds some behavioral scope by indicating the listing includes questions, budgets, and access rights, but it does not disclose pagination, permission requirements, or other runtime behavior. With strong annotations, this is adequate, not exceptional.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.