Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already establish this is a mutating, non-idempotent operation, and the description adds the 'force fresh' semantics — implying it bypasses staleness checks and recomputes regardless of current state. However, it does not disclose whether the recompute is synchronous, whether it is expensive, what happens to the previously stored result, or what the response contains.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.