Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Without any annotations, the description carries the full burden of behavioral disclosure. It states deletion is permanent, which is helpful, but does not disclose side effects (e.g., cascading deletion of stops, impact on active drivers), required permissions, error conditions (e.g., deleting a route that is currently being followed), or any rate limits. This is minimal for a destructive operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.