Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It discloses the three possible outcome types (running with elapsed time, result, failed), which is useful for an agent to interpret the response. However, it does not cover edge cases like invalid task_id or timeout behavior, but overall it provides meaningful behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.