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 explains what the tool returns (key, label, type, required flag, help text, options) and implies a read-only metadata lookup, but it does not explicitly state that there are no side effects or describe any other behavioral constraints such as authentication or data freshness.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.