Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds valuable context on response behavior under two conditions (all providers connected vs. missing credentials), including the return of authenticated, pending[], and URLs. This goes beyond the annotations and clarifies expected output, without contradiction.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.