typescript-migration

Installation
SKILL.md

TypeScript Migration Guide

Incremental strategy for migrating JavaScript codebases to TypeScript. Designed for legacy projects that need progressive, non-disruptive migration.

When to Use This Skill

Activate when the user:

  • Wants to convert a JS project (or parts of it) to TypeScript
  • Needs to add TypeScript to an existing JavaScript project
  • Asks about typing legacy code or reducing any usage
  • Wants to improve type safety incrementally
  • Is setting up tsconfig for a mixed JS/TS codebase

Core Principle: Incremental Migration

Never rewrite everything at once. Migrate file by file, starting from the leaves of the dependency tree. Every intermediate state must be a working codebase.

Phase 1: Setup          → tsconfig + tooling, zero code changes
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Installs
20
GitHub Stars
3
First Seen
Mar 27, 2026