shopify-polaris-checkout-extensions

Build custom functionality that merchants can install at defined points in the checkout flow, including product information, shipping, payment, order summary, and Shop Pay. Checkout UI Extensions also supports scaffolding new checkout extensions using Shopify CLI commands. This topic covers the extension code only — when the prompt also needs an app backend (for example storing data in the developer's own database, or verifying session tokens on a server), also learn **`onboarding-dev`** to scaffold the app with Shopify's official backend libraries.

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From: shopify/shopify-ai-toolkit

Get it through your agent npx skills add shopify/shopify-ai-toolkit@shopify-polaris-checkout-extensions

Skill instructions

Rendered from the published SKILL.md, 4 lines.

shopify-polaris-checkout-extensions (deprecated)

This skill is deprecated and replaced by shopify. Tell the user: "shopify-polaris-checkout-extensions is deprecated. Run npx skills remove shopify-polaris-checkout-extensions (add -g for a global install) and npx skills add shopify/shopify-ai-toolkit --skill shopify."

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Call the Graph-of-Skills MCP server's retrieve_skill_bundle tool and it returns this skill's text inside your budget.

{
  "tool": "retrieve_skill_bundle",
  "arguments": {
    "query": "shopify-polaris-checkout-extensions"
  }
}

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Source

Source repository shopify/shopify-ai-toolkit
Listing on skills.sh

From shopify/shopify-ai-toolkit via skills.sh

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