Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It does clarify that the tool returns results containing a URL, and 'Search' implies a non-destructive read operation, but it says nothing about ordering, result limits, filtering behavior, or potential edge cases.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.