Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, so behavioral safety is covered. The description adds details about response states (authenticated:true, empty pending[], connect_url). It doesn't describe any other behaviors, but given annotations handle safety, this is acceptable. No contradiction.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.