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 retrieves EQ gain, implying a read-only operation, but doesn't specify if it requires special permissions, has side effects, or details about response format (e.g., numeric value, units). This leaves significant gaps for a tool with potential system interaction.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.