Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It discloses a crucial behavioral trait: the operation is scoped to the local draft and does not affect the backend page. This addresses the most important side-effect concern. It does not mention irreversibility or confirmation, but for a simple delete operation, this is adequate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.