Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Without annotations, the description carries the full burden of behavioral disclosure. It does mention that the tool returns JSON across all categories and that limit has a default of 20 and max of 50, but it does not explain ordering guarantees, pagination, error behavior, or authorization needs. This is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.