legacy-modernizer

Installation
SKILL.md

Legacy Modernizer

Purpose

Provides expertise in incrementally modernizing legacy systems without full rewrites. Specializes in migration patterns like Strangler Fig, Change Data Capture (CDC), and Anti-Corruption Layers to safely evolve systems while maintaining business continuity.

When to Use

  • Planning migration from monolith to microservices
  • Implementing Strangler Fig pattern
  • Designing Anti-Corruption Layers between old and new systems
  • Setting up Change Data Capture for data synchronization
  • Modernizing legacy databases incrementally
  • Replacing legacy APIs while maintaining compatibility
  • Assessing legacy codebase for modernization priority
  • Managing dual-write scenarios during transitions

Quick Start

Invoke this skill when:

  • Migrating legacy monoliths to modern architectures
  • Implementing Strangler Fig or Branch by Abstraction
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First Seen
Jan 24, 2026