Give Bolt a design brief before the first build
The strongest Bolt prompt pairs product intent with a visual constraint file. Start with the application goal, then paste or attach DESIGN.md, then ask Bolt to scaffold around those rules: "Build a Next.js founder analytics dashboard. Follow this DESIGN.md exactly. Use the color tokens, compact card rhythm, table density, empty states, and button variants described here. Do not add decorative gradients or marketing hero sections." This gives Bolt enough information to create coherent files from the first preview.