Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the behavioral disclosure burden. It does state a key trait—no content crawling—which signals a lighter, read-only style operation. But it omits other behaviors such as rate limiting, pagination, or how sitemap_only affects the request, leaving gaps in what the agent can anticipate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.