Billing admin
Acme Metering
Claude Code ×1 + Claude agent harness ×2 · 3 iterations
One app, 3 recorded iterations. Names and data in the app are fictional; the photographs are credited in the app.
Before and after


Iteration history
Iteration 1
Claude Code2026-10-05 · 25 turns · 6 MCP calls“Build a billing admin for Acme: a usage overview page with KPIs and a usage meter, an invoices table with filters, and a plan comparison page.”
Iteration 2
Claude agent harness2026-10-06 · 11 MCP calls“The app works, but it looks generic - it could be anyone's.”
Iteration 3
Claude agent harness2026-10-06 · 7 MCP calls“It now looks like us, but it still feels like a UI kit with our data in it.”
The numbers
- Routes verified
- 9
- Real photos
- 15
- Catalog items installed
- 12
- MCP calls
- 24
- Build
- Passed
- Lint errors
- 0
- Accessibility (serious + critical)
- 0
- Horizontal overflow at 390 px
- 0 px
- Kit update
- 27 replaced, 4 added, 4 conflicts
Checks as last recorded in: iteration 3.
Screens

usage

billing settings

customer detail

customers