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 states 'stop', implying a state change (mutative), but it does not disclose whether the operation is reversible, what side effects occur (e.g., alerting pauses), or if any permissions are required. The description adds minimal behavioral context beyond the tool name.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.