Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It discloses the 7-day window, which is useful behavioral detail, but omits edge cases like whether overdue tasks are excluded, whether completed tasks are included, and timezone handling. The description is minimal and does not address these potential ambiguities.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.