Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations declare readOnlyHint=true, and the description does not contradict it. It adds a small behavioral/scope cue ('curated') indicating this is not an exhaustive listing, but it does not disclose response shape, ordering, or any operational behavior. With annotations covering the read-only safety, this is acceptable but minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.