Can this skill help with non-Java files?

Yes, it has specialized support for YAML transformations, making it ideal for automating changes to GitHub Actions workflows, Kubernetes manifests, and CI/CD configurations.

When should I use a declarative recipe vs. an imperative one?

Use declarative YAML when composing existing recipes together. Use imperative Java when you need complex conditional logic or deep access to the Lossless Semantic Tree (LST).

How does this skill handle recipe testing?

It follows a RED-GREEN-REFACTOR cycle, guiding you to write failing RewriteTest cases first to define the expected transformation before implementing the recipe logic.

What is the primary benefit of the OpenRewrite Recipe Writer skill?

It provides a structured, test-first framework for creating automated code transformation rules, ensuring that large-scale refactorings are safe, repeatable, and maintainable.

OpenRewrite Recipe Writer

Name: OpenRewrite Recipe Writer
Author: sjungling

bysjungling

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Deployment & DevOps

Accelerates the development of production-quality OpenRewrite recipes for automated code refactoring and large-scale migrations.

About

This skill empowers developers to build, test, and maintain OpenRewrite recipes using a rigorous test-first approach. It provides expert guidance on choosing the most efficient implementation path—whether declarative YAML, Refaster templates, or imperative Java visitors—to ensure high-quality Lossless Semantic Tree (LST) manipulations. By automating complex boilerplate and providing deep domain expertise in Java and YAML transformations, it enables seamless modernization of legacy frameworks, standardized CI/CD configurations, and reliable infrastructure-as-code updates across massive codebases.

Key Features

Test-driven development (TDD) workflow for robust recipe creation
Automated YAML transformations for GitHub Actions and Kubernetes manifests
5 GitHub stars
Advanced LST (Lossless Semantic Tree) manipulation and visitor implementation
Expert guidance on declarative, Refaster, and imperative recipe selection
JavaTemplate integration for sophisticated code generation and refactoring

Use Cases

Standardizing CI/CD pipelines and cloud-native configurations via automated YAML editing
Migrating legacy Java applications to modern frameworks like Spring Boot 3 or JUnit 5
Automating security patches and API deprecation updates across hundreds of repositories

About

Key Features

Test-driven development (TDD) workflow for robust recipe creation
Automated YAML transformations for GitHub Actions and Kubernetes manifests
5 GitHub stars
Advanced LST (Lossless Semantic Tree) manipulation and visitor implementation
Expert guidance on declarative, Refaster, and imperative recipe selection
JavaTemplate integration for sophisticated code generation and refactoring

Use Cases

Standardizing CI/CD pipelines and cloud-native configurations via automated YAML editing
Migrating legacy Java applications to modern frameworks like Spring Boot 3 or JUnit 5
Automating security patches and API deprecation updates across hundreds of repositories