Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already signal readOnlyHint=true, and the description adds meaningful behavioral context: it returns only first-level comments, supports sort_type ordering, and uses page_token for pagination. These traits go beyond the annotation safety profile. However, it does not mention auth prerequisites, rate limits, or invalid-URL behavior, so it stops short of full disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.