Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already convey readOnlyHint=false, destructiveHint=false, idempotentHint=true, so the description adds limited behavioral insight. However, it misleadingly mentions 'reply-to address, and file attachments' as optional parameters, which are absent from the input schema. This inaccuracy reduces transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.