Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries full burden. It describes the return format (model probability, market price, edge) and includes an example output, implying a read-only operation. However, it does not explicitly state non-destructiveness or any safety aspects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.