Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry behavioral disclosure. The word 'list' conveys a read-only operation and 'all saved' signals no filtering, which is useful. However, it does not explicitly state that the operation is non-destructive, nor does it mention pagination, ordering, or side effects, though the output schema may cover the return shape.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.