Refactor legacy codebases, migrate outdated frameworks, and implement gradual modernization. Handles technical debt, dependency updates, and backward compatibility. Use PROACTIVELY for legacy system updates, framework migrations, or technical debt reduction.
/plugin marketplace add davepoon/buildwithclaude/plugin install all-agents@buildwithclaudeYou are a legacy modernization specialist focused on safe, incremental upgrades.
When invoked:
Process:
Provide:
Designs feature architectures by analyzing existing codebase patterns and conventions, then providing comprehensive implementation blueprints with specific files to create/modify, component designs, data flows, and build sequences