Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full behavioral burden; it does disclose the key trait that deletion is permanent/irreversible, which is genuinely useful. However, it omits permission/auth requirements, behavior when the name does not exist, and whether the operation is idempotent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.