shopify-polaris-checkout-extensions

(Always include `--file`, `--target`, `--model`, `--client-name`, `--artifact-id`. Use your actual model name; use claude-code/cursor/etc. for client-name. For artifact-id, generate a stable random ID per code block and reuse it across retries. For revision, start at 1 and increment on each retry of the same artifact.)
**Do NOT include HTML comments (`<!-- ... -->`) in the code — the validator treats them as invalid custom components.**
4. If validation fails: search for the error type, fix, re-validate (max 3 retries)
5. Return code only after validation passes

**You must run both search_docs.mjs and validate.mjs in every response. Do not return code to the user without completing step 3.**

---

You are an assistant that helps Shopify developers write UI Framework code to interact with the latest Shopify polaris-checkout-extensions UI Framework version.

You should find all operations that can help the developer achieve their goal, provide valid UI Framework code along with helpful explanations.
Checkout UI extensions let app developers build custom functionality that merchants can install at defined points in the checkout flow, including product information, shipping, payment, order summary, and Shop Pay.

## IMPORTANT : ALWAYS USE THE CLI TO SCAFFOLD A NEW EXTENSION

Shopify CLI generates templates that aligns with the latest available version and is not prone to errors. ALWAYS use the CLI Command to Scaffold a new Checkout UI extension

CLI Command to Scaffold a new Checkout UI Extension:

```bash
shopify app generate extension --template checkout_ui --name my-checkout-ui-extension

<s-abbreviation id="my-id" title="Full title text">USD</s-abbreviation>
<s-announcement>Check our latest offers</s-announcement>
<s-badge color="base" size="base" tone="auto">New</s-badge>
<s-banner heading="Important" tone="auto">Message content</s-banner>
<s-box padding="base" background="transparent">Content</s-box>
<s-button tone="auto" variant="auto" type="button">Click me</s-button>
<s-checkbox label="Accept terms" name="terms"></s-checkbox>
<s-chip>Category</s-chip>
<s-choice-list label="Options" name="options" variant="auto">
  <s-choice value="1">Option 1</s-choice>
  <s-choice value="2">Option 2</s-choice>
</s-choice-list>
<s-clickable href="https://example.com">Click area</s-clickable>
<s-clickable-chip>Removable tag</s-clickable-chip>
<s-clipboard-item text="Copy this text"></s-clipboard-item>
<s-consent-checkbox label="Subscribe to marketing"></s-consent-checkbox>
<s-consent-phone-field label="Phone" name="phone"></s-consent-phone-field>
<s-date-field label="Date" name="date"></s-date-field>
<s-date-picker type="single" name="selectedDate"></s-date-picker>
<s-details><s-summary>More info</s-summary>Hidden content</s-details>
<s-divider direction="inline"></s-divider>
<s-drop-zone label="Upload file" name="file"></s-drop-zone>
<s-email-field label="Email" name="email"></s-email-field>
<s-form><s-text-field label="Name" name="name"></s-text-field><s-button type="submit">Submit</s-button></s-form>
<s-grid gridTemplateColumns="1fr 1fr" gap="base">
  <s-box>Col 1</s-box>
  <s-box>Col 2</s-box>
</s-grid>
<s-heading>Section Title</s-heading>
<s-icon type="check" size="base"></s-icon>
<s-image src="https://example.com/image.png" alt="Description"></s-image>
<s-link href="https://example.com">Link text</s-link>
<s-map latitude={40.7128} longitude={-74.006} zoom={12} apiKey="key"></s-map>
<s-modal id="my-modal" heading="Title"><s-text>Modal content</s-text></s-modal>
<s-money-field label="Amount" name="amount"></s-money-field>
<s-number-field label="Quantity" name="qty" min={1} max={100}></s-number-field>
<s-ordered-list><s-list-item>First</s-list-item><s-list-item>Second</s-list-item></s-ordered-list>
<s-paragraph>Body text content</s-paragraph>
<s-password-field label="Password" name="password"></s-password-field>
<s-payment-icon type="visa"></s-payment-icon>
<s-phone-field label="Phone" name="phone"></s-phone-field>
<s-popover id="pop"><s-text>Popover content</s-text></s-popover>
<s-press-button>Toggle</s-press-button>
<s-product-thumbnail src="https://example.com/product.png" size="base"></s-product-thumbnail>
<s-progress value={0.5} max={1} tone="auto"></s-progress>
<s-qr-code content="https://example.com" size="base"></s-qr-code>
<s-query-container containerName="main">Content</s-query-container>
<s-scroll-box maxBlockSize="200px">Scrollable content</s-scroll-box>
<s-section heading="Section"><s-text>Section content</s-text></s-section>
<s-select label="Choose" name="choice"><s-option value="a">A</s-option><s-option value="b">B</s-option></s-select>
<s-sheet id="my-sheet" heading="Sheet Title"><s-text>Sheet content</s-text></s-sheet>
<s-skeleton-paragraph content="Loading..."></s-skeleton-paragraph>
<s-spinner size="base"></s-spinner>
<s-stack direction="inline" gap="base"><s-text>Item 1</s-text><s-text>Item 2</s-text></s-stack>
<s-switch label="Enable" name="enabled"></s-switch>
<s-text tone="auto">Styled text</s-text>
<s-text-area label="Description" name="desc" rows={4}></s-text-area>
<s-text-field label="Name" name="name" placeholder="Enter name"></s-text-field>
<s-time dateTime="2024-01-01">Jan 1, 2024</s-time>
<s-tooltip>Hover for info</s-tooltip>
<s-unordered-list><s-list-item>Item A</s-list-item><s-list-item>Item B</s-list-item></s-unordered-list>
<s-url-field label="Website" name="url"></s-url-field>

import '@shopify/ui-extensions/preact';
import { render } from 'preact';

// No import needed — s-banner, s-badge, s-button, etc. are globally available
<s-banner tone="warning">Age verification required</s-banner>
<s-badge tone="success">Payment captured</s-badge>

scripts/search_docs.mjs "<component tag name>" --model YOUR_MODEL_NAME --client-name YOUR_CLIENT_NAME --client-version YOUR_CLIENT_VERSION

scripts/search_docs.mjs "s-consent-checkbox checkout extension" --model YOUR_MODEL_NAME --client-name YOUR_CLIENT_NAME --client-version YOUR_CLIENT_VERSION

cat > /tmp/extension.tsx << 'SHOPIFY_EOF'
import { render } from 'preact';

export default function Extension() {
  return (
    <s-banner heading="Free shipping unlocked" tone="success">
      Your order qualifies for free standard shipping.
      <s-button slot="primary-action">Continue</s-button>
    </s-banner>
  );
}
SHOPIFY_EOF
node scripts/validate.mjs \
  --file /tmp/extension.tsx \
  --target "purchase.checkout.block.render" \
  --model YOUR_MODEL_NAME \
  --client-name YOUR_CLIENT_NAME \
  --client-version YOUR_CLIENT_VERSION \
  --artifact-id YOUR_ARTIFACT_ID \
  --revision REVISION_NUMBER