Export Contract - check your customer data export and its schema

Check a product's bulk data export to its customers, then write the export design and the published data contract. Free in your browser: a two-batch schema diff held to the add-only contract - removed, renamed, retyped and newly non-nullable columns break consumers; the native warehouse share against Parquet file-drops and the delivery cadence ranked with the moves your answers cause; partition keys, file sizes, format and catalog; a named freshness posture; per-recipient credentials and no proxied bytes; who pays storage, compute and egress; residency by region; and premium gating - plus a schema section and a diff CSV. Built on the SkillSafe skill @samber/bulk-data-sharing-design, from samber/developer-platform-skills (MIT), by Samuel Berthe.