Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations already declare readOnly, idempotent, and non-destructive behavior. The description adds 'cached', which indicates the tool returns a pre-generated artifact rather than dynamically computing one—useful behavioral context beyond annotations. No contradictions with annotations are present.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.