An AI slides generator builds the deck for you. AI Slides Coach does the opposite: it reads a screenshot of the slide you already have open in PowerPoint, Google Slides or Keynote, and tells you what to cut, what to enlarge and where to split one slide into two. It never touches your file and it never exports anything.
A session is a loop. You show the slide, it names one control by its real on-screen label and one thing to do with it, you do it, you show the result. One action per turn, never a list. You get an interface map of all three tools by their real panel names and menu paths, the five mistakes that give themselves away in a screenshot, and a twelve step arc from naming the slide's one message to writing the speaker note.
The same file works in Claude, ChatGPT and Gemini. Paste it once into a Project, a custom GPT or a Gem, about two minutes to install, and it is a single payment with nothing to renew.