Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=true, so safety aspects are covered. The description adds nothing beyond the operation name - it does not disclose what happens to dependent agents or resources (notably a get_secret_dependencies_route sibling exists), whether deletion is reversible, or any auth requirements.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.