Three shifts happened in the last few months that permanently changed the technical requirements for ecommerce backends. If you're building or maintaining ecommerce infrastructure, these affect what "production ready" means now. Shift 1: AI agents are completing purchases autonomously Shopify products are buyable inside ChatGPT. Google's Universal Commerce Protocol connects Walmart, Target and Etsy into a single agentic buying layer. Stripe shipped an Agentic Commerce Suite for WooCommerce. The technical implication is specific and significant. AI agents don't browse storefronts. They query structured data inventory availability, pricing signals, delivery windows and make binary purchase decisions in milliseconds.…