Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the transparency burden. 'Get' plus 'including its full address and phone number' indicates a read operation with no side effects, but auth needs, missing-ID behavior, and full response details are not disclosed. This is adequate for a simple GET but not comprehensive.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.