Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries full responsibility for behavioral disclosure. It only states that the tool gets settings and mentions the refresh parameter, but does not explain side effects, cost of forcing refresh, or what the return value contains. Lack of output schema exacerbates the gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.