Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden. It does add one meaningful behavioral trait beyond the name: the scores are 'live' and scoped to the 'current week', implying real-time, auto-scoped data rather than a stored historical snapshot. It still says nothing about permissions, refresh cadence, or whether the week is inferred from league settings.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.