Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true, so the description does not need to restate safety. It adds useful content-level context by listing the groups, scoring rules, and four-minute review method. However, it does not disclose what actually happens when the tool is invoked, such as whether it returns a static reference or a formatted card.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.