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legacy-migration-planner

Plan legacy system migrations using the Strangler Fig pattern.

1|Updated Feb 26, 2026
Search Tags:#architecture#refactoring#microservices#migration#codebase analysis#strangler fig
One-click install
npx skills add https://github.com/Matheusrlr/payment-orchestrator --skill legacy-migration-planner
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: legacy-migration-planner
Source: https://github.com/Matheusrlr/payment-orchestrator/tree/main/skills-catalog/skills/%28architecture%29/legacy-migration-planner
Command: npx skills add https://github.com/Matheusrlr/payment-orchestrator --skill legacy-migration-planner

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides a structured, evidence-based approach to planning complex system migrations, ensuring a clear roadmap and mitigating risks.

Core Features & Use Cases

  • Migration Strategy Definition: Determines the optimal migration direction (decomposition, consolidation, cross-stack) based on codebase analysis.
  • Seam and Facade Design: Identifies critical points for intercepting and redirecting traffic during incremental replacements.
  • Risk Assessment & Mitigation: Maps potential technical, operational, and business risks and proposes mitigation strategies.
  • Use Case: Planning the migration of a monolithic application to microservices, including defining service boundaries, designing APIs, and creating a phased rollout strategy.

Quick Start

Use the legacy-migration-planner skill to analyze the current codebase and generate a migration roadmap.

Frequently Asked Questions about legacy-migration-planner

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

FAQPage Schema
How do I plan a monolith to microservices migration?▼

A legacy system migration provides a structured, evidence-based approach to complex codebase modernization. It analyzes your current architecture to determine the optimal migration direction, map risks, and produce a clear roadmap with mitigation strategies.

How does the Strangler Fig pattern work for codebase refactoring?▼

The Strangler Fig pattern works for codebase refactoring by designing seams and facades to intercept and redirect traffic. This allows incremental replacement of legacy components without requiring a full system rewrite at once.

Can I use this for cross-stack migration strategy definition?▼

Yes, you can use this for cross-stack migration strategy definition. The analysis determines the optimal migration direction—whether decomposition, consolidation, or cross-stack—based on your specific codebase structure and target stacks.

What is the best way to identify bounded contexts for architectural refactoring?▼

The best way to identify bounded contexts for architectural refactoring is through codebase analysis. This Skill examines your existing codebase structure to define service boundaries and design APIs for the target architecture.

How do I assess technical risks during legacy system modernization?▼

To assess technical risks during legacy system modernization, you map potential technical, operational, and business risks alongside dependencies. The analysis then proposes specific mitigation strategies to ensure a safe phased rollout.

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