Emacs integrates the Model Context Protocol (MCP) to provide Large Language Models (LLMs) with deep access to the Emacs environment. It furnishes LLMs with crucial data such as loaded packages, available functions, keybindings, and comprehensive documentation. This robust integration empowers LLMs to autonomously assist in extending Emacs configurations and authoring new packages, significantly streamlining development workflows by eliminating the need for manual context provision.