Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden for behavioral disclosure. It only states 'list', implying a read-only operation, but omits details about authentication requirements, rate limits, potential side effects, or whether the accounts returned are cached or live. No annotation exists to compensate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.