This one handles room layouts, lighting calculations, and color palettes using actual interior design systems like Munsell notation and IES lighting standards. You get specific clearance measurements (900mm for primary paths, 450mm sofa-to-coffee-table), layered lighting formulas, and anti-patterns like single overhead lights or forgetting traffic flow. It connects to Stability AI for photorealistic room renders. The references cover things like metamerism and CCT programming, which is more technical than the usual mood board approach. Use it when you need real measurements and lighting math, not just style suggestions. Pairs well with the color theory skill for palette decisions beyond just interiors.
npx skills add https://github.com/erichowens/some_claude_skills --skill interior-design-expert