CatwalkTK/pptxcli ? reverse-engineered prompt

Build me a Python command line app that lets me chat with Claude to create and edit PowerPoint files.

I want it to feel like an easy presentation assistant, where I can type things like make a 10 slide pitch deck, update slide 3 in an existing file, analyze a deck, or apply a clean professional theme. It should save finished .pptx files into an output folder and have simple commands like help, clear, and exit. Please include a friendly terminal experience with a nice banner and a loading spinner while it is working.

Make it support creating decks from scratch, editing existing presentations, reading content from PowerPoint files, and applying a few built in themes plus custom styling. Use environment variables for the API key, and if you need current details for any library or API behavior, look them up online.