Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds that results are public place data (coordinates, viewport, radius, address components), but says nothing about auth, rate limits, or behavior on an unresolvable id, so it only modestly exceeds the annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.