BuildPromptKit: AI prompts that ship real UI — every one has a live demo

Hey Product Hunt 👋 I build a lot of landing pages with AI. The tools got good — but I kept hitting the same wall: write a three-line prompt, get something generic, then spend forty minutes nudging it toward "actually looks shipped." The fix was never a better tool. It was a better prompt — one that specifies grid, motion, spacing and states up front, the way you'd brief a designer. So I started keeping the ones that worked. That's BuildPromptKit. The part I care most about: every prompt has a live demo, and it isn't a screenshot or a hand-written lookalike. Each demo is the actual React component the prompt produces, bundled at build time and rendered in your browser. Click Demo and you're looking at real output. If a prompt drifts, its demo breaks — which keeps me honest. Today: 80+ live demos across five lines — Sites, Apps, Sections, Backgrounds and Components. Tested against Cursor, Claude Code, Lovable, Bolt, v0 and Replit. Free tier gives you 10 copies a day; $29 once unlocks everything, including every future drop. No subscription. What I'd love from you: paste one into your builder and tell me what came out — good or bad. The bad ones are how the next batch gets written.