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. It states the tool 'permanently deletes' items, which implies a destructive, irreversible action, but lacks details on permissions needed, rate limits, error conditions, or what happens if the trash is already empty. This is a significant gap for a 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.