Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action ('calculate square root') but does not mention potential side effects (e.g., if it modifies state or requires permissions), error handling (e.g., for invalid inputs like negative numbers), or performance aspects (e.g., computational limits). This leaves significant gaps in understanding the tool's behavior beyond the basic operation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.