The abort-controller package provides a standard AbortController and AbortSignal implementation, enabling cancellation capabilities for asynchronous operations like fetch requests, streams, and more. Crucially, it brings the Abort API to environments lacking native support, ensuring consistent behavior across browsers and Node.js. This allows you to gracefully terminate long-running processes and prevent unnecessary resource consumption when a request is no longer needed, greatly improving application performance and responsiveness. By using this package, developers can implement standardized abort handling in their code.