autoprefixer-stylus is a Stylus plugin that automatically adds vendor prefixes to CSS properties, ensuring cross-browser compatibility. It leverages data from [caniuse.com](https://caniuse.com/) to determine which prefixes are necessary based on your specified browser support. By integrating seamlessly into your Stylus workflow, autoprefixer-stylus streamlines development and reduces the need to manually manage browser-specific prefixes, keeping your CSS clean and maintainable. It helps ensure consistent and modern web experiences.