Individual skill
shopify-checkout-extensions
Build Checkout UI Extensions to customize Shopify checkout with sandboxed React-like components. Use when replacing checkout.liquid (deprecated Aug 2025), adding custom fields to checkout, displaying banners, or reading checkout state with hooks. Trigger with phrases like "shopify checkout extension", "shopify checkout ui", "checkout customization shopify", "checkout.liquid migration", "shopify checkout components".
skills/.curated/shopify-checkout-extensions/SKILL.md
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SKILL.mdcore · 4,886 bytesSKILL.mdcore · 4,886 bytesreferences/bundle-optimization.mddoc · 3,259 bytesreferences/extension-targets.mddoc · 3,772 bytesreferences/ui-components.mddoc · 4,532 bytes
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# Shopify Checkout UI Extensions
## Overview
Checkout UI Extensions replace checkout.liquid (deprecated August 2025) with sandboxed, React-like components at specific checkout targets. They run in isolation with no DOM access and a strict 64KB bundle limit, using Shopify's component library for consistent, accessible UIs.
## Prerequisites
- Shopify CLI 3.x+ and a Shopify Partners app
- Node.js 18+, `@shopify/ui-extensions-react` package
- Development store with checkout extensibility enabled
## Instructions
### Step 1: Configure the Extension