Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations are absent, so the description carries the full burden. It does disclose the data source, year, geometry type, and per-feature attribute (MB code), which is useful. However, it omits details like coordinate reference system, response size, or read-only behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.