Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true and readOnlyHint=false, so the description need not repeat safety. However, description adds context about ownership and the specific endpoint. It does not disclose side effects (e.g., permanence, dependent resources) beyond what 'delete' implies. Since annotations cover the destructive nature, the description adds modest value.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.