Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already mark the tool as non-destructive and not open-world, and the description adds valuable context by stating the operation is atomic and owner-scoped. It does not, however, describe failure modes, idempotency, or return value details, though the output schema may cover returns.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.