Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must disclose behavioral traits. It only mentions the output format, but fails to mention error handling, rate limits, authentication needs, or what happens if robots.txt is missing. The parameter descriptions in the schema are wildly inconsistent (e.g., zone described as timezone), which adds confusion rather than transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.