This handles PowerPoint creation, editing, and analysis through a couple of different workflows. For reading content, it converts presentations to markdown or unpacks the underlying XML for granular access to comments, speaker notes, and layouts. For creation, it uses an html2pptx conversion approach and includes surprisingly detailed design guidance, like content-aware color palette selection (18 different palettes ranging from Classic Blue to Retro Rainbow) and specific typography treatments. The most interesting part is how prescriptive it gets about design principles, requiring you to state your design approach before writing code and match visual choices to subject matter. It's opinionated in a way that actually prevents generic looking decks.
npx skills add https://github.com/rysweet/amplihack --skill pptx