Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden of behavioral disclosure but reveals nothing about side effects, return format, auth requirements, or failure modes. The unexplained 'expanded operation' phrase adds confusion rather than transparency, as it's unclear what 'expanded' means in this context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.