Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden of behavioral disclosure. It reveals that the tool is faster and limited to risk signals, but it does not state whether the operation is read-only, what the response contains, whether there are rate limits, or any error conditions. This lack of operational detail is a notable gap for a tool with zero annotation support.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.