Data Catalog Builder: Data Catalog Builder — Guide

Data Catalog Builder is a tool for automated metadata discovery, classification, quality scoring, and documentation within Databricks Unity Catalog. It uses a YAML-driven scanner to discover tables and columns, enrich them with tags and PII classification, compute quality scores, and generate searchable catalog reports. The tool supports configurable exclusion patterns, selective row counting, and medallion architecture tag rules for bronze/silver/gold layers.