The demo in one GIF
The one prompt
The instruction was one sentence: build an App Store page with a featured app, a category grid, ratings and a detail view. The agent had to decide the layout, write the code and make it run — no templates, no follow-ups.
What the agent did
- Planned the store layout: hero, categories, app cards, detail view.
- Wrote the HTML, CSS and JavaScript from scratch.
- Launched the app locally and opened it in the browser.
- Checked the interactions against its plan and fixed what looked off.
- Handed back the finished store with the run summary.
The honest numbers
| Metric | Value |
|---|---|
| Model | deepseek-chat |
| Agent steps | 30 |
| Tokens | 48.2k |
| Cost | ≈ $0.02 |
Not a chess game, not a map
This demo is its own build — an App Store clone, distinct from the Google Maps clone and the chess game demos. Each recording is a separate one-prompt run with its own plan, code and trace.
Try the same prompt
Copy the idea, not the code: “Build an App Store clone with a featured app, categories, ratings and a detail view.” Run it through the agent you created and watch the trace in the Deep Dive view. Keep the run cheap with a daily spend cap.
Frequently asked questions
Is this the same demo as the chess game?
How much did it cost?
Can I reproduce it?