rewrite-yaml

YAML refactoring automates bulk transformations of configuration files using OpenRewrite recipes. This Skill generates production-ready recipes that apply precise changes—like migrating action versions or updating Kubernetes manifests—while preserving formatting and comments across entire repositories.

Test-first recipe development means writing failing tests that specify your desired YAML transformations before implementing the recipe logic. This ensures correctness and maintainability by validating each transformation against real YAML files in a RED-GREEN-REFACTOR workflow.

Yes. JsonPath matching enables precise targeting of nested YAML values and structures in GitHub Actions workflows, Kubernetes configs, and other YAML files. You can search, modify, add, or delete keys and values based on JsonPath expressions without manual file-by-file editing.

The recipes you create run on Java 8 and follow OpenRewrite conventions, but this Skill handles boilerplate generation and pattern guidance. You work with declarative recipe definitions and LST visitor patterns; Python scripts streamline the setup and testing workflow.

LST-based transformations preserve formatting and comments precisely, but complex structural changes across deeply nested YAML require careful JsonPath expressions and thorough test coverage. The Java 8 compatibility requirement excludes modern language features like switch expressions and text blocks.