backend-migrations

Create and manage database migrations following best practices for reversibility, zero-downtime deployments, and version control. Use this skill when creating migration files, modifying database schemas, adding or removing tables/columns, managing indexes, or performing data transformations. Apply when working on migration files (migrations/*.ts, migrations/*.sql, *_migration.py), Prisma schema changes, Supabase migrations, or any database evolution tasks. This skill ensures reversible migrations with rollback/down methods, small focused single-change migrations, zero-downtime deployment compatibility, separated schema and data migrations, safe concurrent index creation on large tables, clear descriptive naming conventions, and proper version control practices (never modify deployed migrations).

// tip: Run this command in your terminal to install the skill