Why a Valid Payment Token Is Not Enough for AI-Delegated Commerce

A technical article in the Agent-Ready Commerce series argues that delegated payment in AI-driven platforms must be treated as a bounded authority decision, not simply a token validation check. The author contends that even a cryptographically valid, unexpired payment artifact cannot alone authorize a transaction — the platform must verify the specific actor, buyer, merchant, amount, currency, and time window against a live checkout snapshot. The piece outlines a multi-step chain from payment artifact to order commitment, warning that collapsing these steps into a single 'token valid, proceed' logic creates unsafe payment behavior. This seventh installment builds on prior articles covering catalog facts, action eligibility, policy structure, protocol adapters, and checkout state machines. The overarching goal of the series is to define an architecture where commercial decisions are scoped, auditable, and safe for automated or agent-initiated execution.