Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It does not indicate whether the operation is idempotent, what happens on failure, or what the return value is. The term 'moderate' is vague and does not convey side effects or state changes beyond the schema.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.