Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds that this lists account-level saved widget-section assets and accepts optional filters, which is useful but not deeply behavioral. It does not describe defaults, pagination behavior, or what an 'asset' is beyond the name, though the output schema helps fill that gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.