managing-database-migrations

## Overview This skill empowers Claude to handle database migrations, including creating new migrations, applying changes, and rolling back previous modifications. It ensures that database schema changes are managed safely and efficiently. ## How It Works 1. **Migration Request**: The user requests a database migration task (e.g., "create a migration"). 2. **Migration File Generation**: Claude generates a timestamped migration file, including both "up" (apply changes) and "down" (rollback changes) migrations. 3. **Database Support**: The generated migration file is compatible with PostgreSQL, MySQL, SQLite, or MongoDB. ## When to Use This Skill This skill activates when you need to: - Create a new database migration file. - Add a column to an existing database table. - Rollback a previous database migration. - Manage database schema changes. ## Examples ### Example 1: Adding a Column User request: "Create a migration to add an 'email' column to the 'users' table." The skill will: 1. Generate a new migration file with timestamped name. 2. Populate the 'up' migration with SQL to add the 'email' column to the 'users' table. 3. Populate the 'down' migration with SQL to remove the 'email' column from the 'users' table. ### Example 2: Rolling Back a Migration User request: "Rollback the last database migration." The skill will: 1. Identify the most recently applied migration. 2. Execute the 'down' migration script associated with that migration. 3. Confirm the successfu...