Worked on the RooVetGit/Roo-Cline repository to deliver a user-facing feature that enhances the copy action experience in task actions. Implemented a two-second visual checkmark feedback after copying, addressing user ambiguity around copy confirmation and improving overall usability. Utilized React and TypeScript to ensure seamless integration with existing front end components, while maintaining code clarity and consistency. Added comprehensive tests, including mocking the copy hook, to verify the new behavior and prevent regressions. Also resolved an import naming inconsistency for the Check icon, aligning code and tests. The work focused on maintainability, usability, and robust test coverage within the module.