Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, so the safety profile is covered; the description adds the envelope/nextAction convention, which is useful. However, the 'confirm: false for a preview, then repeat identical inputs with confirm: true' instruction describes a gated mutation flow that makes no sense for a read-only getter and is not supported by the schema (no confirm parameter exists), which would actively mislead an agent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.