Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare the tool as read-only, idempotent, and non-destructive. The description adds the detail that slugs are role-based and skill-based, which is useful context. However, it does not describe return format, ordering, or whether the list is live (open world), though annotations partially cover the safety profile.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.