openrewrite-recipe-writer

Automate code refactoring by writing OpenRewrite recipes that apply transformations across hundreds of files consistently. This Skill guides you through recipe authoring, from selecting the right recipe type to testing and deployment, eliminating manual refactoring work.

OpenRewrite offers three recipe types: Declarative YAML for simple transformations, Refaster for pattern-based changes, and Imperative Java for complex logic. This Skill helps you choose the right type based on your refactoring complexity and API migration needs.

Write OpenRewrite recipes in TypeScript using template-based patterns, visitors, and type attribution via configure(). This Skill provides scaffolding with RecipeSpec for testing positive cases, negative cases, and multi-file scenarios to ensure production-ready recipes.

Yes, OpenRewrite recipes automate API migrations across your codebase by applying consistent transformations. This Skill walks you through authoring recipes that identify deprecated calls and replace them systematically, saving hours of manual migration work.

The Lossless Semantic Tree (LST) is OpenRewrite's core data structure that preserves code formatting while enabling transformations. This Skill teaches LST manipulation fundamentals, visitor patterns, and JavaTemplate usage so your recipes modify code correctly and consistently.

Structure recipes using best-practice class layouts, implement visitors for code traversal, and document decision logic. This Skill covers recipe class organization, testing scaffolding, and documentation patterns required for reliable, maintainable recipes in production environments.