Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must compensate. It only states the action but does not disclose whether stopping a session is destructive, whether it requires specific permissions, or what the impact on background processes is. The behavioral context is minimal.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.