Related Skills: Accelerate your modernization journey with specialized skills from Skilled. Browse language-specific migration skills, framework migration skills, and modernization workflows to transform your codebase efficiently.

Migration Guide Index

Choose your modernization path from our comprehensive collection of guides:

Language Modernization

Infrastructure & Architecture

Quality & Security

Modernization Best Practices

Follow these proven practices to ensure successful modernization projects:

Assessment First

  • Inventory your codebase: Map all languages, frameworks, and dependencies
  • Identify critical paths: Understand which systems are business-critical
  • Measure technical debt: Use automated tools to quantify complexity and risk
  • Estimate effort: Create realistic timelines based on codebase size and complexity

Incremental Approach

  • Start small: Begin with low-risk modules to build confidence
  • Parallel execution: Use Git worktrees to modernize multiple modules simultaneously
  • Frequent checkpoints: Create git commits at regular intervals for easy rollback
  • Continuous testing: Run tests after each change to catch regressions early

Team Preparation

  • Upskill team: Train developers on target technologies before migration
  • Establish standards: Define coding standards for the modernized codebase
  • Set up CI/CD: Ensure automated testing and deployment pipelines are ready
  • Document decisions: Record architectural decisions and rationale

Risk Mitigation

  • Maintain parity: Keep old and new systems running in parallel during transition
  • Data validation: Verify data integrity after database migrations
  • Performance testing: Benchmark old vs new systems to ensure no degradation
  • Rollback plan: Have documented rollback procedures for each phase

AI Agentic Readiness Checklist

Prepare your codebase for AI-assisted modernization by completing these prerequisites:

Code Quality Prerequisites

Documentation Prerequisites

Infrastructure Prerequisites

AI-Specific Prerequisites

Security Prerequisites

Getting Started Steps

Follow this step-by-step process to begin your modernization journey:

  1. Choose your migration path: Select the appropriate guide from the index above based on your technology stack
  2. Run the readiness checklist: Complete the AI Agentic Readiness Checklist above
  3. Install relevant skills: Browse Skilled and install skills for your specific modernization needs
  4. Initialize Autohand: Run autohand init in your project directory
  5. Run assessment: Use the assessment commands in your chosen guide to understand scope
  6. Create a plan: Generate a modernization roadmap with phases and milestones
  7. Start with a pilot: Choose a low-risk module for your first modernization iteration
  8. Validate and iterate: Test thoroughly, gather feedback, and refine your approach
  9. Scale up: Expand to additional modules using proven patterns from the pilot
  10. Monitor and optimize: Track metrics and continuously improve your process

Next Steps