Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Adds real behavior the annotations cannot convey: asynchronous execution, durable task vs job-ID client branching, polling endpoints, and webhook completion signals. It does not mention cost/billing implications of the external model even though organization_id is described as billing-related in the schema, and it doesn't reconcile the idempotency_key parameter with idempotentHint=false.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.