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shopify-polaris-checkout-extensions · shopify — Claude Code skill

A deprecated skill for Shopify Checkout extensions. Shopify replaces it with the shopify skill.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add Shopify/Shopify-AI-Toolkit --skill shopify-polaris-checkout-extensions -a claude-code
Open on GitHub

What shopify-polaris-checkout-extensions does

This skill covered code for Shopify Checkout extensions that merchants can add at defined checkout points. Its scope included product information, shipping, payment, order summary, Shop Pay, and extension scaffolding through Shopify CLI.

shopify-polaris-checkout-extensions is deprecated and replaced by shopify. Do not start new work on the old skill; remove it and add the current Shopify AI Toolkit skill instead.

The topic was limited to extension code. An app backend for storing data in your own database or verifying session tokens also requires onboarding-dev and Shopify's official backend libraries.

What it helps with

  • replace a deprecated Shopify skill
  • build a Checkout extension at a defined point
  • add UI for shipping or payment
  • scaffold a Checkout extension with Shopify CLI

Example prompts for the agent

  • Replace shopify-polaris-checkout-extensions with the current shopify skill.
  • Build a Shopify Checkout extension for the order summary.
  • Scaffold a Checkout extension with Shopify CLI.

How to install shopify-polaris-checkout-extensions

1Skills CLI (Vercel)

npx skills add Shopify/Shopify-AI-Toolkit --skill shopify-polaris-checkout-extensions -a claude-code

2Manually: put the files in place

~/.claude/skills/shopify-polaris-checkout-extensions/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/shopify-polaris-checkout-extensions/

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about shopify-polaris-checkout-extensions

How do I install shopify-polaris-checkout-extensions in Claude Code?

The skill is deprecated. To install it in Claude Code, run npx skills add Shopify/Shopify-AI-Toolkit --skill shopify-polaris-checkout-extensions -a claude-code.

What does shopify-polaris-checkout-extensions do?

It covered Shopify Checkout extension code for checkout points such as product information, shipping, payment, order summary, and Shop Pay. The shopify skill now replaces it.

Do I need this skill for a Shopify app backend?

No. Its scope was extension code; storing data in your own database or verifying session tokens also needs onboarding-dev.

Source text

SKILL.md · MIT 
---
name: shopify-polaris-checkout-extensions
description: "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."
---

# 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`."

© Shopify · MIT · Shopify/Shopify-AI-Toolkit

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