This implements the strangler fig pattern for modernizing legacy codebases by orchestrating specialized agents across assessment, testing, migration, and security phases. You get a structured workflow that maps dependencies, establishes test coverage with characterization tests, sets up API gateway routing with feature flags, and gradually replaces old components while keeping both systems running. The approach is methodical, starting with risk analysis and quick wins before tackling complex refactoring. It's built for teams that can't afford big bang rewrites and need to maintain business operations during migration. The workflow assumes you have time to instrument things properly, so if you're under pressure to ship fast, the comprehensive testing and dual-system monitoring might feel heavy.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill framework-migration-legacy-modernize