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 only says 'List pages' and does not mention what is returned (page metadata vs. content), ordering, pagination, or any side effects. This is a minimal operational statement rather than a transparent behavioral disclosure.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.