Power BI Semantic Modeling Guide users in building optimized, well-documented Power BI semantic models following Microsoft best practices. When to Use This Skill Use this skill when users ask about: - Creating or optimizing Power BI semantic models - Designing star schemas (dimension/fact tables) - Writing DAX measures or calculated columns - Configuring table relationships (cardinality, cross-filter) - Implementing row-level security (RLS) - Naming conventions for tables, columns, measures - Adding descriptions and documentation to models - Performance tuning and optimization - Calculation g…