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. It does add one behavioral trait: 'persistent state across context resets', which informs the agent that state is retained across resets. However, it does not disclose potential side effects (e.g., whether it modifies files or external systems), permissions needed, or any other behavioral nuances, leaving a gap in transparency.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.