Demo script

What the demo proves, and what is simulated, must be said out loud.

#Setup

pnpm install && pnpm build:extension

Chrome → chrome://extensions → Developer mode → Load unpacked → apps/extension/dist. In the popup's Settings & privacy, set a coarse region and keep Compare with synthetic fixtures (demo) on.

#Flow

1. Open iFood in your own logged-in session and add one açaí 500 ml to the bag. (If the tab was open before installing, the popup offers Reload iFood tab.)
2. Context: the popup header shows CART / CHECKOUT with the detection signals in the tooltip; the on-page badge appears (Shadow DOM, bottom right).
3. Extraction: Breakdown shows subtotal, delivery fee, service fee, discount and total, each with a confidence and the DOM evidence (tooltip), plus whether the total reconciles.
4. MarketObservation: the checkout is recorded locally as browser-extension / live / non-synthetic (service-worker console shows a structured observation.recorded log).
5. Comparison: "Your checkout is R$X. Comparable observations range from … " — with Includes synthetic fixture data when fixtures are used, or Not enough fresh market data.
6. Intent: type quero açaí até R$25 → Find better option.
7. Recommendation: best option, total, savings vs median and vs your checkout, confidence, freshness, the score formula and every rejection reason. Fixture/other-account options are labelled market reference — verify in ; your current checkout is the only executable option.
8. Pix + Solana: on the Pix screen, the popup shows the detected Copia e Cola payload (CRC valid), amount and expiry. The Cloak shield is real on Solana mainnet (1.000000 USDC confirmed); the off-ramp → Pix settlement remains disabled until a licensed provider is integrated. Show the mainnet proof.

#Limits to state during the demo

• Extractors were developed against synthetic HTML modelled on iFood; real pages may need selector/label calibration.
• Rappi and 99Food data are synthetic fixtures.
• No merchant Pix settlement is executed. The privacy funding step (Cloak shield) is real on Solana mainnet.