This skill provides specialized guidance for creating, modifying, and testing database migrations within the n8n ecosystem. It ensures that schema changes follow strict architectural patterns, maintains parity between PostgreSQL and SQLite, and enforces a rigorous pre-flight checklist to prevent common migration errors. By leveraging a domain-specific language (DSL) and predefined migration types, it simplifies complex database operations like column additions, table creation, and data backfilling while maintaining cross-database integrity and following n8n's specific contribution guidelines.
