Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint:true and idempotentHint:true, and the description adds conditional behavior about response fields (authenticated:true, pending[], connect_url) that are not in the annotations. This goes beyond the structured data, though it could be more explicit about the lack of side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.