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 goes beyond a simple 'cancel' by explaining that it sets a cancellation flag that the CEGIS engine checks between iterations, informing the agent that cancellation is not necessarily immediate. It does not detail return values or failure handling, but the key side-effect is disclosed.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.