@changesets/cli is a command-line tool designed to streamline the release process for JavaScript projects. It helps manage versioning, changelogs, and publishing for monorepos and single-package repositories. By automating the creation of changeset files, it captures intended changes for each commit, ensuring accurate and consistent version updates. The CLI integrates seamlessly with your CI/CD pipeline to automate releases and publish packages to npm, minimizing manual intervention and reducing errors. It promotes efficient collaboration and predictable releases.