Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must disclose behavioral aspects. It does not mention authentication requirements, possible errors (e.g., 404 for missing group), or whether the response includes members or other details. The description is purely a functional statement without behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.