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legacy-to-agents-migration

Migrate legacy code into a modular .agent/skills architecture with parity tests.

Updated Feb 7, 2026
Search Tags:#testing#refactoring#orchestration#modularity#migrate#legacy-code#agent-architecture
One-click install
npx skills add https://github.com/chathuraed/existing_project --skill legacy-to-agents-migration
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: legacy-to-agents-migration
Source: https://github.com/chathuraed/existing_project/tree/main/.agents/skills/legacy-to-agents-migration
Command: npx skills add https://github.com/chathuraed/existing_project --skill legacy-to-agents-migration

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill guides teams to migrate legacy code into a modular .agent/skills architecture while preserving behavior, increasing maintainability, and enabling future evolution.

Core Features & Use Cases

  • Migration planning: decompose legacy logic into reusable skills with clear interfaces.
  • Modularity & orchestration: keep orchestration in /agent while business logic lives in /skills.
  • Parity validation: ensure functionality parity through tests and verification across refactors.
  • Use Case: Large enterprise projects undergoing architectural modernization and gradual migration.

Quick Start

Start by analyzing the legacy project, then extract core business logic into /skills and document orchestration in /agent, followed by running parity checks.

Frequently Asked Questions about legacy-to-agents-migration

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

FAQPage Schema
How do I migrate legacy code to modular agent architecture without breaking behavior?▼

To migrate legacy code to modular agent architecture, you extract business logic into /skills and keep orchestration in /agent. This approach preserves behavior by enforcing clear interfaces and validating functionality parity through tests during the refactor.

What is the best way to plan a large-scale refactor for agent architecture?▼

Planning a large-scale refactor for agent architecture involves decomposing legacy logic into reusable skills with clear interfaces. This architectural modernization technique ensures business logic is separated from orchestration for gradual, maintainable migration.

Can I use incremental migration to modernize enterprise legacy code?▼

Yes, incremental migration is suited for large enterprise projects undergoing architectural modernization. It allows gradual extraction of core business logic into modular skills while running functionality parity checks across refactors to prevent regressions.

How do I validate functionality parity when refactoring legacy code?▼

You validate functionality parity when refactoring legacy code by running tests and verification checks across the migration. This ensures the new modular skills architecture preserves the original behavior of the extracted business logic.

Does migrating to agent architecture require separating orchestration from business logic?▼

Yes, migrating to agent architecture requires keeping orchestration in /agent while business logic lives in /skills. This separation enforces modularity, increases maintainability, and enables future evolution of the codebase.

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