Worked on the tc39/test262 repository to enhance the quality and clarity of JavaScript test suites by addressing documentation issues in test descriptions. Focused on correcting typos in the Object.preventExtensions and Reflect.preventExtensions test cases, ensuring that test metadata accurately reflected the intended JavaScript specification behavior. The approach involved careful editing of test descriptions without altering the underlying test logic, thereby maintaining test reliability and CI stability. Utilized JavaScript and testing best practices to improve maintainability and reduce onboarding friction for new contributors. The work prioritized clear communication in test documentation, supporting more efficient code reviews and ongoing suite development.