Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but only states the action ('archive/delete') without clarifying permanence, reversibility, permissions required, or error conditions. It mentions 'delete' which implies destructive behavior, but lacks details on consequences (e.g., whether archived emails are recoverable).
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.