You get AI-powered image and video upscaling through fal.ai's super-resolution models without hosting infrastructure yourself. It's useful when you need to take low-res assets to 4K or higher, whether for client deliverables or cleaning up generated images that came out smaller than you needed. This comes from the fal.ai community team, so you're tapping into their model pipeline rather than wiring up your own endpoints. The skill hooks into Claude's planning through trigger phrases like "upscale image" or "enhance resolution," though you'll want to check the upstream GitHub repo for the full workflow details and any API key requirements. Straightforward tool for a common need.
npx skills add https://github.com/nexu-io/open-design --skill fal-upscale