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Agentic Refactoring

Agentic Refactoring

A comprehensive toolkit for systematically migrating legacy applications to modern architectures using AI agents. Features a structured M1-M6 workflow for codebase analysis, migration planning, and phase-by-phase implementation. Includes a web-based Migration UI dashboard with real-time progress tracking and Claude Agent SDK integration for automated execution.

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Next.js 15 Claude Agent SDK Drizzle ORM Zustand Tiptap

Features

  • M1-M6 structured workflow: analysis, research, specification, planning, implementation guides, review
  • Deep legacy codebase analysis extracting architecture, patterns, and business logic
  • Comprehensive migration specifications with success criteria and rollback plans
  • 14-phase implementation plans from database schema to UI components
  • Migration UI dashboard with three-panel interface: command sidebar, markdown editor, AI chat
  • Claude Agent SDK integration with real-time streaming and sub-agent monitoring
  • Cross-platform CLI tool with standalone binaries for macOS, Linux, Windows
  • Custom slash commands for Claude Code

Challenge

Migrating a complex legacy Spring Boot + Thymeleaf + MySQL application to modern Next.js + PostgreSQL + TypeScript while preserving business logic, ensuring zero data loss, and making the process repeatable for future migrations.

Solution

Developed a spec-driven approach with 6 phases: deep analysis, stack research, migration spec, architectural planning, phase-by-phase guides, and cross-plan review. Built a Migration UI for human oversight and integrated Claude Agent SDK for automated execution of each phase.

Agentic Refactoring Agentic Refactoring Landing

Highlights

  • Successfully guided 14-phase migration from Java to TypeScript
  • Repeatable workflow applicable to any legacy codebase
  • Real-time progress tracking with human oversight