Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. 'No identifiers are retained' is a useful privacy/behavioral disclosure, but the description does not explain what happens to the inputs (url, host, json, zone) during classification, whether computation is local, or what side effects (if any) exist.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.