Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint:false. The description adds that it returns parameter names, descriptions, data types, and requiredness, which is consistent with a safe read operation. It does not contradict annotations and offers useful context about the return content.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.