Backend Migrations

This Skill provides Claude Code with specific guidance on how to adhere to coding standards as they relate to how it should handle backend migrations.

When to use this skill

• When creating new database migration files for schema changes
• When adding, removing, or modifying database tables, columns, or constraints
• When creating or dropping indexes, foreign keys, or unique constraints
• When working with migration tools like Alembic, Flyway, Liquibase, Django migrations, or Rails migrations
• When implementing reversible migrations with proper up/down or forward/backward methods
• When separating schema changes from data migrations for safety
• When planning zero-downtime deployments requiring backwards-compatible changes
• When creating indexes on large tables using concurrent/online index creation
• When modifying migration files in migrations/, db/migrate/, or similar directories
• When setting up migration version control and naming conventions
• When implementing migration testing in staging environments
• When handling migration rollbacks or fixing failed migrations

Instructions

For details, refer to the information provided in this file: backend migrations