Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and destructiveHint false, so the safety profile is structurally known. The description reinforces this with 'No payment or write is initiated' and adds useful content scope, but it does not disclose additional behavioral traits such as permission requirements, freshness guarantees, or rate limits.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.