Worked on the dart-lang/test repository to enhance developer guidance by updating documentation related to package:checks. Focused on clarifying the experimental status of this package and providing explicit recommendations for production use, the work centered on revising the README.md and CHANGELOG.md files using Markdown. This documentation effort aimed to set clear expectations for users, steering them toward established tools like package:test and package:matcher for production environments. By improving onboarding materials and reducing ambiguity, the updates helped minimize the risk of misuse in production and lowered support overhead, demonstrating a methodical approach to documentation and developer experience within the project.