Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are supplied, so the description carries the behavioral disclosure burden. It communicates a read-only listing operation and clarifies that the result is names, not macro contents. However, it does not address edge behavior such as invalid model paths, ordering, empty results, or whether only direct child macros are included.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.