The simple-sketch plugin enables users to create basic sketches within Obsidian using an intuitive interface. It provides tools for freehand drawing, creating shapes such as lines, rectangles, and ellipses, and adding text to sketches. Users can save sketches directly to their vault or download them as image files. A ribbon icon gives quick access to the sketching interface, while right-click options allow users to edit image files. The plugin is designed for simplicity and efficiency, making it easy to enhance notes with visual elements.