Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must fully disclose behavioral traits. 'Fetch balance of power' only indicates a read operation without details on rate limits, authentication needs, data sources, or output format. It fails to describe what 'fetch' entails (e.g., real-time vs. historical data, potential costs, or error conditions), leaving significant gaps in understanding the tool's behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.