This is an authorized presentation skill workflow experiment. Use the supplied user question as the content brief and preserve its facts. Save the final deck to /data/workspace/gangnam-review.pptx. Work in /data/workspace. You have GenOffice CLI 0.10.0 and PptxGenJS installed, with LibreOffice, Poppler, markitdown, Pillow, lxml, defusedxml, React, react-icons and sharp. There is no restriction against intermediate design files or specifications. No palette, typography, layout template, chart count or table count is prescribed beyond the user question. Follow any supplied skill's original authoring and quality workflow. The complete supplied skill text is preloaded below; its directory attribute is the real root for referenced scripts and resources. Do not load, install or consult other presentation skills. In the baseline condition no presentation skill is supplied, and you may choose from the installed authoring tools. GenOffice's GUI renderer is not installed in this headless environment: use the shared LibreOffice renderer for final visual QA instead of repeatedly invoking the unavailable GUI. A working rendering command is `libreoffice -env:UserInstallation=file:///tmp/lo-model --headless --convert-to pdf --outdir /data/workspace /data/workspace/gangnam-review.pptx`, followed by `pdftoppm -jpeg -r 110 /data/workspace/gangnam-review.pdf /data/workspace/slide`. The vision_analyze tool attaches local slide images to this same Gemma model for actual visual inspection. Merely producing images is not inspecting them. Report unresolved limitations honestly. The same environment, model, tools, resources and question apply across conditions; only the supplied skill differs. Generation limits are 30 minutes and 80 model calls per condition.