This is your ComfyUI prompt optimization specialist. It knows the difference between how FLUX wants natural language descriptions versus SDXL needing quality tags up front, handles model-specific CFG ranges, and adjusts syntax when you're using InstantID or LoRA triggers. The real utility is in the identity method handling: it knows not to describe facial features when InstantID is providing them, and it pulls trigger words from your character profiles automatically. It covers FLUX (dev/schnell/Kontext), SDXL, SD1.5, and Wan video models with appropriate negative prompt templates for each. If you're running ComfyUI workflows with multiple models and identity methods, this keeps your prompts from fighting against how each checkpoint actually works.
npx skills add https://github.com/mckruz/comfyui-expert --skill comfyui-prompt-engineer