Live preview, running the exact code the prompt carries
Spool Timeline
A four lane timeline under a live preview, where every clip's width, the playhead's position, the bar lines drawn from the track's tempo and the timecode above them all come from one frame count.
Paste into Claude Code, Cursor or Windsurf. It builds this screen 1:1 in your app.
What the prompt carriesEverything inlined, nothing fetched
- screen.tsx
- written in full, ready to paste
- 506 lines
- Inter
- Regular, Medium, Semi Bold, Bold
- via @expo-google-fonts
- Integration rules
- ships 1:1, never re-themed to your app
- SDK 52+
The rule this design follows
It ships exactly as previewed: same colors, same type, same copy, same motion. The prompt tells your agent to build that, and not to adapt it to your existing theme.
