Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true and idempotentHint=true, so the description doesn't need to re-state destructive behavior. It adds a usage context about sensitive data, but this is more of a usage guideline than a behavioral disclosure. No additional behavioral traits like irreversibility side effects are described, matching the get_calls calibration where additions beyond annotations were minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.