Use this skill when designing lakehouse architectures with medallion layers (bronze/silver/gold), Databricks Unity Catalog, Delta Sharing, Apache Paimon, or multi-cloud lakehouse. This skill enforces: medallion architecture layers and data flow, Unity Catalog metastore and RBAC, Delta Sharing for data mesh, Apache Paimon table format, multi-cloud replication strategy, open format commitment. Do NOT use for: single-layer data lakes without tiering, streaming-only pipelines, or BI dashboard design.
