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ryl is a fast YAML linter written in Rust and published by Owen Lamont, designed as a performance-oriented alternative inspired by the well-established yamllint tool. The software implements yamllint's complete rule set while also introducing additional ryl-only rules, making it suitable both for teams migrating from yamllint and for projects seeking extended linting coverage. As a linter, ryl falls squarely into the developer tools and code quality category, targeting workflows where YAML files must be validated against configurable style and correctness standards. Its configuration model is TOML-first, which distinguishes it from tools that rely on YAML for their own settings. Among its notable capabilities is safe auto-fixing, invoked through the --fix flag, which can automatically correct detected issues without risk of corrupting files. For users who prefer to review changes before applying them, the --diff option generates unified-diff previews of proposed fixes. ryl also extends its reach beyond standalone YAML files by supporting the linting of YAML embedded within Markdown documents, a common need in documentation-heavy repositories. Integration with continuous integration and code review pipelines is facilitated through multiple output formats, including GitHub annotations, JUnit reports, and GitLab Code Quality artifacts, allowing lint results to surface directly in the platforms where developers already work. These features make ryl applicable to use cases such as pre-commit checks, CI/CD quality gates, documentation validation, and general configuration file hygiene across a variety of projects. The current release is version 0.22.0, and the project has published five versions in total, indicating ongoing development and refinement since its initial release. Together, its Rust-based performance, compatibility with an existing rule ecosystem, and rich reporting options position ryl as a practical choice for teams seeking fast, flexible YAML linting that fits naturally into modern software development toolchains.
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