Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It usefully discloses that both pending and resolved annotations are affected, which is real scope information, but omits irreversibility, permission requirements, and any returned count for what is clearly a bulk 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.