@octokit/request-error provides standardized error handling for Octokit.js, GitHub's API client library. It extends the standard JavaScript Error object with properties specific to API request failures, such as HTTP status code, request headers, and response data. This allows developers to easily identify and handle different types of API errors, improving the robustness and user experience of applications integrating with the GitHub API. The package promotes consistency in error reporting across Octokit and simplifies error debugging.