Screen-by-Screen Iteration in Stitch

Context

Stitch doesn't just generate standalone screens: it lets you refine a design by iterating screen by screen, adjusting one at a time with incremental prompts instead of regenerating the whole flow at once. It's the disciplined way to improve a design in Stitch without breaking what you already liked. It builds on the Stitch canvas, where each screen is an independent unit you can touch on its own.

Setup

1. Open your project at stitch.withgoogle.com with the flow already generated.
2. Select one screen on the canvas, not the whole flow.
3. Write a refinement prompt scoped to that screen: "on this screen, raise the CTA contrast and move it above the fold."
4. Stitch regenerates only that screen; the others stay untouched.

State as of July 2026. Stitch has added real-time editing with its agent, but the principle of iterating one screen at a time still holds.

Examples

A 3-screen flow: Home → Detail → Checkout.
Problem: the Detail screen looks inconsistent with Home.
 
❌ Anti-pattern: "redo the whole flow to be more consistent."
   → Stitch regenerates all 3 and you lose the Home you already liked.
 
✅ Screen-by-screen iteration:
   1. You select only Detail.
   2. "On this screen, use the same heading typography and the same
       primary button as Home."
   3. You confirm Detail now matches. Home and Checkout, untouched.
   4. Repeat with Checkout if needed.

Refining one screen at a time gives you control: each change is verifiable and reversible. Regenerating the whole flow is rolling the dice on work that already worked.

Particularities

• Advantage: scoped, verifiable changes; you don't gamble your good work on every iteration.
• Advantage: it fits the "one variable per iteration" principle — change one thing, validate, continue.
• Limitation: since Stitch keeps no strong system memory between prompts, you have to restate the visual rules in each refinement prompt ("same typography as Home"). For sustained consistency at scale, the system lives better in a DESIGN.md + Claude Design.
• When NOT to: if the base design is heading the wrong way, iterating screen by screen is just polishing. There, go back to the initial prompt and regenerate the whole direction.