Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must carry the full burden of behavioral disclosure. It states what the tool does (gets values) but does not disclose whether it returns values for all custom attributes, how missing values are handled, or any response structure. This is a simple read operation, but the description adds minimal 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.