Incorporating linting tools into continuous integration (CI) setups can significantly enhance the quality of code, APIs, and documentation by ensuring all content is valid and well-structured. Redocly CLI provides a solution for integrating linting into API projects, offering custom plugins that facilitate the checking of OpenAPI content, particularly when dealing with Markdown within JSON or YAML files. This involves using tools like Markdownlint for Markdown files and creating custom plugins in NodeJS to visit each node in an OpenAPI file, applying the Markdownlint tool to identify and report issues. Configuring the tool involves setting specific rules, such as adjusting line length settings or disabling certain defaults, to tailor it to the project's needs. The process helps maintain high-quality standards in API documentation and enhances developer experience by ensuring consistency and validity, as demonstrated with the Apache Airflow API. By integrating these checks into CI setups, projects can maintain newly achieved quality standards over time.