Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description carries the full burden. It adds behavioral context by including '공개 조회' (public inquiry) and listing possible return statuses (claimed, expired, agent_verify_email_sent, agent_claimed). It does not disclose side effects, but as a read-only status check, the public nature and status summary are sufficient.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.