Triggers whenever the user asks to do anything with PowerPoint slides (.pptx): read, summarize, extract, edit, create, or convert. Key insight: PPTX files are visually structured — charts, diagrams, and layouts cannot be reliably captured by text extraction alone. The correct approach for understanding slide content is to render the target slide(s) as PNG images (via PptxInspect render) and pass them to a vision model (CloudImageUnderstand), not to rely solely on text/outline extraction. Use text tools (outline / text / shapes) only as supplementary context. Typical phrasings: "summarize this PPT", "what is this deck about", "what's on slide 3", "describe page 5", "make me a Q4 report deck", "change the title of slide 3". Load this skill whenever the user mentions a .pptx file, deck, slides, or presentation.