Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure. It states the tool is a live web search returning accurate information, but it does not disclose potential limitations such as rate limits, response time, result count, or whether it returns full content or snippets. Basic behavior is clear, but details are missing.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.