Fernando tests Grok 4.6 by giving a Cursor cloud agent an existing application plus a design document exported from a visual reference. The task is deliberately constrained: preserve the product while replacing its generic styling with named tokens, components and layout principles.
The model reads the design document, builds reusable components and applies the system across the page rather than improvising each section independently. Fernando treats this as evidence that design files can bridge the gap between a designer's intent and an agent's implementation work.
He checks the result in the browser, including mobile behavior, and uses follow-up instructions to refine specific areas. The workflow shows why concrete assets, framework choices and acceptance criteria produce better results than simply asking a model to make an interface look professional.
Fernando also discusses token use, subscription costs and the tradeoff between fast and high-effort model modes. The promotional referral material is omitted here; the useful lesson is that a strong model still needs a durable design system, a testable target and human review of the rendered product.
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