Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already indicate readOnlyHint=true and openWorldHint=true, so the safety profile is clear. The description adds only 'including test count,' which provides minimal behavioral context. It does not disclose other potential behaviors, side effects, or the scope of returned data beyond that hint.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.