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Kill GPU-occupying Python/vLLM processes to free GPU memory. Use when nvidia-smi shows memory in use by dead or unwanted processes.

Set up a model training/inference environment from scratch (uv venv + inference engine + training smoke test). Use when preparing to train or serve a model on a new machine/project, or when python/torch/vllm imports fail. Tool-agnostic flow; uv-first.

Generate a slide-by-slide Markdown PPT script (演讲文稿) from an existing document (PDF thesis, LaTeX source, research paper, project report, or meeting notes). The script maps one-to-one to PPT pages and captures: slide copy, figure references, and speaker notes. Use when the user asks to: - 写 PPT 文稿 / 起 PPT 稿 / 做 PPT 设计文稿 - Create a presentation script for thesis defense, research progress report, or project review - Convert an academic paper, thesis, or report into a structured PPT script - Draft speaker notes or narration for a presentation Do NOT use for actually implementing the .pptx file — use the pptx skill for that.