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migrate-code

Migrate code between frameworks, languages, and architectural patterns while preserving behavior and tests.

1|Updated Mar 2, 2026
Search Tags:#typescript#refactoring#code migration#code modernization#esm#framework migration
One-click install
npx skills add https://github.com/sitharaj88/claude-skills --skill migrate-code
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: migrate-code
Source: https://github.com/sitharaj88/claude-skills/tree/main/skills/migrate-code
Command: npx skills add https://github.com/sitharaj88/claude-skills --skill migrate-code

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill automates the complex and time-consuming process of migrating codebases between different programming languages, frameworks, and architectural patterns, ensuring behavior preservation.

Core Features & Use Cases

  • Cross-Framework Migration: Seamlessly convert codebases from one framework to another (e.g., Express to Fastify, Vue Options API to Composition API).
  • Language Transformation: Migrate code between languages or versions (e.g., JavaScript to TypeScript, CommonJS to ESM).
  • Pattern Modernization: Update code to adopt modern patterns and libraries (e.g., Class Components to Hooks, REST to GraphQL).
  • Use Case: You need to convert a large JavaScript project using CommonJS modules to TypeScript with ESM imports. This Skill can automate the renaming of files, conversion of import/export syntax, and type annotation.

Quick Start

Use the migrate-code skill to convert all JavaScript files in the 'src/' directory from CommonJS to ESM.

Frequently Asked Questions about migrate-code

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I migrate JavaScript code to TypeScript without breaking existing tests?▼

Converting CommonJS to ESM involves transforming import and export syntax across your codebase. This Skill automates file renaming, syntax conversion, and dependency updates, then performs post-migration cleanup to ensure the modernized modules function correctly.

Can I migrate an Express codebase to Fastify automatically?▼

Pattern modernization from REST to GraphQL is a supported use case. The Skill handles the transformation by analyzing the current API scope, setting up required dependencies, and performing incremental migration with post-migration testing to ensure behavior preservation.

What is the best way to convert Vue Options API to Composition API?▼

Yes, migrating Class Components to Hooks is supported as a pattern modernization task. The Skill performs an incremental migration, analyzing the scope and setting up necessary tooling to preserve existing behavior and tests throughout the architectural pattern update.

Does code migration support incremental transformations for large codebases?▼

Post-migration testing and cleanup are integrated directly into the workflow. After performing incremental code transformations, the Skill runs tests to verify behavior preservation and executes cleanup operations to remove obsolete tooling and dependencies.

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