Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries full burden but discloses no behavioral traits. It doesn't mention data sources, rate limits, authentication needs, or what 'Top News' means (e.g., recency, popularity). This leaves the agent with insufficient information to predict tool behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.