Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=false and destructiveHint=true, so the bar is lower. The description adds only the batch-capability detail; it does not disclose whether deletion is permanent or reversible, what happens to related records (orders, categories), or what confirmation/authorization is required for a destructive operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.