Why Agent-Ready E-Commerce Checkout Should Be Built as a State Machine

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A developer article from DEV Community argues that checkout in agent-ready commerce platforms must be modeled as a state machine rather than a simple form endpoint. Unlike discovery or product comparison, checkout actively mutates commercial state — affecting inventory, pricing, shipping, and payment obligations. The author contends that as AI agents gain the ability to add items, prepare checkouts, and act under buyer authority, platforms need explicit, trackable states and commands for every transition. Each action must be tied to a specific actor, authorization level, and auditable evidence trail. This piece is the sixth installment in a broader series on building commerce infrastructure that is safe and reliable for both human users and autonomous agents.

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