The Replica skill

Replica Skill is an open-source collection of eleven Claude AI skills that guide developers through analyzing, rebuilding, testing, and launching applications inspired by existing software. It begins by examining publicly available interfaces, screenshots, documentation, and user workflows to map an application's structure. Specialized skills generate architecture plans, database designs, visual design systems, and implementation instructions. Additional workflows address backend functionality, authentication, payment integration, and automated testing. Comparison tools evaluate visual differences and feature parity between the reference application and its reconstruction. The toolkit also analyzes customer reviews to identify usability problems and opportunities for product improvement. Branding, marketing, and deployment skills help transform the reconstructed application into a distinct product. It integrates with Claude Code and includes Python utilities for development.