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 only states 'List open working orders' without disclosing details like authentication requirements, whether the list is paginated, sorting behavior, or side effects (though it is a read operation). The word 'open' is a filter but adds little 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.