Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description carries the burden. It discloses the source (CCD), the demographic groups included, and total enrollment, plus default year and limit. However, it does not mention data suppression, privacy thresholds, or what happens with missing data, leaving some behavioral aspects undisclosed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.