This article tracks the development of LLM extensions, highlighting significant milestones from ChatGPT Plugins to Claude Code. It discusses how user customization has evolved, focusing on tools like Custom Instructions and Agent Skills that enhance agent capabilities. The author reflects on the future of LLMs and the integration of general-purpose tools.

MarkItDown is a Python utility designed for converting various file types into Markdown format, facilitating integration with large language models (LLMs) and text analysis tools. The recent update introduced breaking changes, improved handling of file-like streams, and added support for optional dependencies to enhance functionality. Users can easily install and use MarkItDown for a variety of document types, including PowerPoint, Word, and audio files, while also supporting third-party plugins.