Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, so the safety profile is covered. The description adds useful behavioral context: the response shape matches meeting_index, jurisdiction filtering is a substring (not exact match), and calling with no args returns the full corpus. This goes beyond the annotations and helps the agent understand semantics.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.