sql-server-patterns

Inject SQL Server schema-design knowledge into a task before the schema is written — partitioning, hierarchy modelling, SARGability, compression and temporal tables — by routing to .claude/templates/tsql-patterns.md rather than restating it. Distinct from migration-safety-reviewer (will this migration run cleanly on existing data?) and sql-performance-reviewer (is this existing query fast?): this one decides the SHAPE. Use when: user says /sql-server-patterns, asks how to model or index a table, proposes partitioning or a hierarchy, or when data-architect is designing persistence and dotnet-backend-architect is about to write an entity, configuration or migration.