Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses one important behavioral trait — that the deletion is permanent/irreversible — which is genuinely useful beyond the name. However, it omits auth/permission requirements, whether associated data (FTP, databases, files) is also removed, and confirmation/irreversibility semantics.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.