Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description takes on the burden of disclosing behavior. It explains that the record includes pending receipts and scored results (Brier vs. market price), and notes it is a public track record. However, it doesn't explicitly state read-only status or authentication expectations, which would strengthen transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.