Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full disclosure burden. It usefully reveals the sort order (oldest first) and the fields returned (author, text), which is real behavioral value, but it says nothing about pagination/limits, whether deleted comments are included, or any permission requirements.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.