Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Given no annotations, the description carries full burden. It discloses that deletion is permanent, which is important behavioral info, but it omits other traits like cascading effects, permission requirements, or whether deletion is immediate or reversible. Minimal but includes the key permanence detail.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.