Ucp

This wraps Shopify's Universal Commerce Protocol CLI for cross-merchant shopping workflows inside Claude. It handles product discovery across a global catalog, cart and checkout operations against UCP-supporting merchants, and order tracking. The skill enforces profile initialization before merchant-scoped commands and includes introspection helpers to pull capability lists and input schemas on the fly. If a merchant doesn't support direct UCP transactions, it falls back to their hosted checkout. Worth noting that it ships with detailed journey heuristics and JMESPath view projections to keep response sizes sane. Useful when you want commerce primitives that work across stores without hardcoding individual integrations.