Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the burden of behavioral disclosure. It does add useful context such as pay-per-use pricing on Base and the pre-launch validation scenario, which helps an agent reason about cost and use. However, it does not describe the output format, scope of coverage, or any limitations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.