Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of disclosing behavioral traits. It only says 'List', implying a read-only operation, but does not explain authentication requirements, rate limits, side effects, or the exact scope of 'upcoming'. This lack of detail leaves the agent guessing about the tool's behavior beyond the basic action.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.