Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
There are no annotations, so the description must carry the behavioral disclosure burden. It does add useful context by mentioning the cost ($0.002) and the result shape (organic results with title, link, snippet). However, it omits potential rate limits, error behavior, whether the query uses live data, and other operational constraints that would matter when selecting or invoking the tool.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.