Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the full burden of behavioral disclosure. It states that it returns elements with usage relationships, but does not clarify depth (direct vs. transitive), whether the given element is included, the meaning of 'use' (e.g., references, calls, type dependencies), or any side effects. This minimal behavioral information is insufficient for a potentially complex analysis tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.