# Config Migration Generator

> Generate configuration file migration utilities for version upgrades.

- Skill: `a5c-ai/config-migration-generator` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add a5c-ai/config-migration-generator`
- Raw SKILL.md: https://api.skillmd.com/api/skills/a5c-ai/config-migration-generator/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: a5c-ai (https://skillmd.com/u/a5c-ai)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/a5c-ai/config-migration-generator

---


# Config Migration Generator

Generate config file migration utilities.

## Generated Patterns

```typescript
interface Migration {
  version: string;
  up: (config: any) => any;
  down: (config: any) => any;
}

const migrations: Migration[] = [
  {
    version: '2.0.0',
    up: (config) => ({
      ...config,
      server: { host: config.host, port: config.port },
      version: '2.0.0',
    }),
    down: (config) => ({
      host: config.server?.host,
      port: config.server?.port,
      version: '1.0.0',
    }),
  },
];

export function migrateConfig(config: any, targetVersion: string): any {
  let current = config;
  for (const migration of migrations) {
    if (semver.gt(migration.version, config.version) && semver.lte(migration.version, targetVersion)) {
      current = migration.up(current);
    }
  }
  return current;
}
```

## Target Processes

- configuration-management-system
- cli-update-mechanism