Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Discloses valuable behavioral traits beyond the sparse annotations: concurrent execution, partial failure tolerance, response summary, and per-item mirroring of POST /settle. Annotations only provide false hints, so the description adds meaningful context, though it omits details like authorization or side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.