AI TOOL · PERFORMANCE · PROJECT 03
Ad Creative Engine
A product URL in, a full campaign out
The problem
Creative is the highest-leverage variable in paid media and the biggest bottleneck. Most accounts test creatives when they should be testing angles — and run out of ideas by week three.
What I built
Paste any product page and the engine reads it, then produces five distinct psychological angles, six scroll-stopping hooks, ten headlines split for Facebook and Google, three complete primary texts with copy buttons, and four visual concepts specific enough to brief a designer.
How it works
- Extracts the offer from the page — title, description, headline, visible pricing, body copy — before writing anything, so output references the actual product rather than a category.
- The prompt enforces structure per angle (pain-agitate, social proof, us-vs-them, transformation, identity) so the five options are genuinely different rather than five rewrites of one idea.
- Output is typed JSON rendered into a UI with copy-to-clipboard, because the deliverable is copy that gets used, not a wall of text.
Stack
Cloudflare Pages FunctionsAnthropic / GeminiStructured JSON output
What it proves
AI applied to performance marketing with domain judgment baked into the prompt architecture — not a thin wrapper.
Honest limitations
WHAT THIS DOESN'T DOReads one page, so it works best on a focused product or landing page rather than a homepage listing forty categories.
Want something like this built?
Design, code, launch and growth — handled start to finish.
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