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 adds the version compatibility warning but fails to disclose critical mutation behaviors: whether cancellation preserves partial results, if the operation is reversible, error handling for invalid task IDs, or whether this is a graceful or forceful termination.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.