Adds optional-skills/productivity/shopify — curl-based guide for the
Shopify Admin GraphQL API (products, orders, customers, inventory,
metafields, bulk operations, webhooks) and the Storefront GraphQL API.
- API version 2026-01 (current stable)
- Custom-app access tokens (shpat_...) with X-Shopify-Access-Token header
- Notes the 2026-01-01 deprecation of admin-created custom apps, points
users at Dev Dashboard for new setups after that date
- Includes a reusable shop_gql() bash helper, cursor pagination,
rate-limit cost inspection, GID conventions, userErrors check
- Safety section warns on destructive mutations (delete/refund/cancel)
Installs cleanly via: hermes skills install official/productivity/shopify
