I run a marketing agency. I'm rebuilding how it works with AI, and showing the work.

• Sitemap, page structure and first-draft copy generated from a one-page positioning brief, then edited by hand.
• Case-study pages set up as a CMS collection so new work is a form fill, not a rebuild.
• Placeholder metric: enquiries mention a specific service ~2× more often than before, because the site names them.

What I'd tell a client: AI got the site to 70% in an afternoon. The last 30% (voice, what to leave out, what the offer actually is) was still the job.

The one technical piece worth showing: the prompt that produced usable copy asked for constraints, not adjectives.

# positioning brief → page copy
Audience: owners of gyms, markets, event series (UK)
Tone: plain, confident, no agency jargon
Rule: every service line names a real deliverable and a timeframe
Output: H1, 2-line intro, 6 service blocks (title + 25 words each)

• Homepage with a full-screen launch film and overlaid navigation, shop-all plus six category views, twelve product preview pages, Inside LX3, Contact, search, size guide, delivery and returns, FAQs and draft policy pages.
• Ten draft products in the Shopify catalogue with confirmed retail prices and seven sizes each. Two jackets still need pricing.
• The shopping idea: you browse by consistent line sketches, then land on real photography of the garment. The "Before the finished piece" section carries the scrapbook side.
• Mobile done properly: bigger touch targets, stacked sketch cards, swipeable product galleries, responsive images.
• Business model turned into customer messaging: "Made to Order in NYC", 63 pieces per style across all sizes, arrival two to three weeks after ordering.

Where AI earned its keep. Matching scattered descriptions and photos into a usable collection structure. Turning flat lays into one sketch style (after a false start). Matching ten styles to the linesheet and flagging missing prices and conflicting details on its own. Turning chat feedback into working changes, including the video overlay and the mobile galleries. Diagnosing image sizing that was leaving big blank spaces.

Results. None yet, it isn't live. After launch: mobile conversion, product-page visits, add-to-bag rate, checkout completion, and whether deliveries land inside the two-to-three-week promise.

Shopify, a custom theme ("LX3 — NY minimal draft") built on the Horizon setup with custom Liquid sections and templates. Codex for implementation and copy, OpenAI image generation for the sketches, Python scripts for asset and catalogue sorting, FFmpeg to inspect the launch film. No storefront apps.

The prompt that produced the most, verbatim. Not a clever one. It worked because the constraints were already established in the thread.

# after the homepage + animations were signed off
Ok fire.. Build out the rest of the store with the pages we will need.
Keep it simple and straight forward. Use the animations we created
and keep the theme that way but when they get to the actual product
it shows lifestyle images etc.

The code worth showing: the mobile product gallery is swipeable using the browser's own scrolling, no carousel library.

/* product gallery, mobile */
.lx3-product-gallery {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: 10px;
  overscroll-behavior-x: contain;
}