Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of behavioral disclosure, and it does convey a read-only lookup by creation date plus optional workspace filtering. It does not discuss edge behavior such as date boundary inclusivity, timezone interpretation, or result ordering, but those are not critical for a basic call.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.