Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure, but it only says 'Delete'. It does not reveal that deletion is permanent, whether special permissions are required, any cascading effects, or what happens to associated data. The minimal phrase offers no transparency beyond the obvious destructive intent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.