Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety and network profile is covered. The description only adds that the target is a 'static page' fetched from the pinned domain, which is mild extra context but no detail on caching, error behavior, or content scope.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.