Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full responsibility for behavioral disclosure, yet it only says 'Test connectivity' without mentioning whether the operation is read-only, possible side effects, response format, or error behavior. This is minimal and relies on the user's inference that a connectivity test is safe.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.