Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is established. The description adds that the tool analyzes the account and leverages website, contacts, and campaign history, providing useful context beyond the annotations, but doesn't disclose additional behaviors like response format or potential delays.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.