Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the behavioral disclosure burden. It adds a meaningful caveat that results are deliberately broader and lower-precision, and that the tool is not a peer to occupation lookup. It does not describe return shape, pagination, or side effects, but as a read-style lookup the precision caveat is a useful behavioral signal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.