Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full disclosure burden. It usefully reveals that the value is an average aggregated at LGA level, but it does not cover units/currency, missing-suburb behavior, or edge cases such as suburbs spanning multiple LGAs.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.