Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It discloses that the tool returns an empty list if the user has no private design systems or is not authenticated, which is a key behavioral trait. It also reveals that each item only contains name and slug, setting expectations for the response structure. However, it does not elaborate on authentication requirements beyond the empty list case, nor any other edge behaviors like rate limits or ordering, but for a simple list operation this is reasonably transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.