database-migration SKILL.md skillA

database-migration from hermeticormus/claude-code-game-development is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

mdr add hermeticormus/claude-code-game-development/database-migration@git:20251120.50bf83d

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Audit grade

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Kind

SKILL.md skill

Repository

hermeticormus/claude-code-game-development

Path

plugins/framework-migration/skills/database-migration/SKILL.md

Versions recorded

1

Latest version

git:20251120.50bf83d, committed Nov 20, 2025

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Repository stars

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License

MIT

Execute database migrations across ORMs and platforms with zero-downtime strategies, data transformation, and rollback procedures. Use when migrating databases, changing schemas, performing data transformations, or implementing zero-downtime deployment strategies.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Database Migration

Master database schema and data migrations across ORMs (Sequelize, TypeORM, Prisma), including rollback strategies and zero-downtime deployments.

## When to Use This Skill

- Migrating between different ORMs
- Performing schema transformations
- Moving data between databases
- Implementing rollback procedures
- Zero-downtime deployments
- Database version upgrades
- Data model refactoring

## ORM Migrations

### Sequelize Migrations
```javascript
// migrations/20231201-create-users.js
module.exports = {
  up: async (queryInterface, Sequelize) => {
    await queryInterface.createTable('users', {
      id: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true
      },
      email: {
        type: Sequelize.STRING,
        unique: true,
        allowNull: false
      },
      createdAt: Sequelize.DATE,
      updatedAt: Sequelize.DATE
    });
  },

  down: async (queryInterface, Sequelize) => {
    await queryInterface.dropTable('users');
  }
};

// Run: npx sequelize-cli db:migrate
// Rollback: npx sequelize-cli db:migrate:undo
```

### TypeORM Migrations
```typescript
// migrations/1701234567-CreateUsers.ts
…

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How to install

mdr add hermeticormus/claude-code-game-development/database-migration@sha256:9e532a59a7c58a96

[![mdr](https://markdownregistry.com/badge/art_jycq6l2s5eorrm3y.svg)](https://markdownregistry.com/a/art_jycq6l2s5eorrm3y)

Versions

The registry has recorded 1 version of this file, committed on Nov 20, 2025.

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Source

API

GET https://markdownregistry.com/api/v1/artifacts/art_jycq6l2s5eorrm3y
GET https://markdownregistry.com/api/v1/resolve?ref=hermeticormus/claude-code-game-development/database-migration
GET https://markdownregistry.com/api/v1/blob/9e532a59a7c58a96c39c4d36e2635db959db3602d71f8794563da37ac0d33368

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