Use when someone wants to find product-data problems across a Shopify catalog: "audit my catalog", "find PDP problems", "which products have missing photos / thin or missing descriptions / pricing anomalies", "$0 or compare-at-inverted prices", "products missing type or vendor", "catalog quality sweep", "product data health check", "which listings are broken", "run a catalog audit before a big sale". Read-only: it locates and ranks problems, it does not change anything. Not for FIXING the problems it finds (use shopify-catalog-cleanup for debris/archiving, shopify-seo-metadata for missing SEO meta, shopify-alt-text for missing image alt text).
