Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It only states 'Get all DNS records for a zone/domain' and does not disclose potential mutation, rate limits, pagination, required permissions, or error behavior. The 'get' verb implies read-only, but this is not explicit.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.