Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavior. It uses the verb 'List' indicating a read-only operation, but doesn't mention pagination, authentication, or response format. The description adds context about what qualifies as a connection but lacks deeper behavioral detail.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.