Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint=true and openWorldHint=true, which signal a safe read operation that may return dynamic data. The description adds the detail that it returns the score 'for a day' and the 'factors that drove it,' which gives some context about the response scope. However, it does not disclose defaults (e.g., what happens when date is null), timezone handling, or behavior when no data exists, leaving gaps beyond what annotations cover.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.