Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the burden of disclosing behavior. Saying 'List all notes' is misleading because the schema includes pagination parameters (page, limit), implying results are paginated rather than 'all' at once. There is no mention of ordering, error conditions, or the shape of the response.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.