The Cloudsmith CLI GitHub Action is a new tool designed to simplify the process of installing and pre-authenticating the Cloudsmith CLI using OpenID Connect (OIDC) or an API Key, streamlining workflows for package management, artifact pushing, and CI/CD automation. The action offers easy installation, pre-authentication with OIDC, support for API Key authentication, customizable inputs, and seamless integration with GitHub Actions, making it a valuable addition to developer toolchains.