Korea Payments (Toss Payments — cards / KakaoPay·NaverPay / virtual accounts)

Each tool has a clearly distinct role in the payment lifecycle: confirm_payment finalizes, create_payment_link initiates, query_payment_status checks, and refund_payment reverses. No overlap in functionality.

All tools follow a consistent verb_noun pattern using snake_case: confirm_payment, create_payment_link, query_payment_status, refund_payment. Perfectly predictable and uniform.

With 4 tools, the set is lean but covers the essential payment operations (create, confirm, query, refund). While slightly minimal, it is well-scoped for the domain and avoids bloat.

The tools cover the main payment flow: link creation, status checking, confirmation, and refund. A minor gap is the lack of an explicit cancel/void tool for payments before confirmation, but this is partially handled by timeouts and the refund mechanism.