🛠️The Builder
Tour the three-pane workspace where you and Claude collaborate.
4 min read·Last updated 2026-05-17
The builder is where the work happens. Chat with Claude, watch code stream in, see the live preview update on the right — all in one screen.
Layout
- Left: chat panel. Send prompts, see Claude's plan, switch modes.
- Center: Monaco code editor. File tree at the edge, tabs above.
- Right: live preview. Browser-rendered React Native by default, scan-to-phone via QR.
- Top bar: Save · Share · Publish · History · Settings.
Streaming
Every Claude response streams over Server-Sent Events. You'll see thinking, then file diffs, then a short summary. Stop the stream at any time with the red button — partial work is kept.
History
Every generation creates a checkpoint. Use History in the top bar to roll back to an earlier state. Useful when an experiment goes sideways.
ℹ️
Keyboard shortcuts
Cmd+Enter sends the prompt · Cmd+S saves a checkpoint · Cmd+K opens the command palette · Cmd+/ toggles the preview pane.