Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the burden of behavioral disclosure. It implicitly communicates a read-only, informational nature by describing provenance metadata and a citation purpose. It doesn't mention side effects or access requirements, but none are expected for a metadata tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.