MCPInstall

shopify

Shopify platform development. Stack: Shopify CLI, GraphQL/REST APIs, Polaris UI, Liquid templating. Capabilities: app development (OAuth), checkout UI extensions, admin UI extensions, POS extensions, theme development, webhooks, billing API, product/order/customer management. Actions: build, extend, customize, integrate Shopify apps/themes. Keywords: Shopify, Shopify CLI, GraphQL Admin API, REST API, Polaris, Liquid, checkout extension, admin extension, POS extension, theme, webhook, billing API, OAuth, app bridge, metafields, product, order, customer, storefront, hydrogen, oxygen. Use when: building Shopify apps, customizing checkout, creating admin interfaces, developing themes, integrating payments, managing store data via APIs, extending Shopify functionality.

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/samhvw8/dotfiles --skill shopify
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads shopify automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Shopify Development

Comprehensive guide for building on Shopify platform: apps, extensions, themes, and API integrations.

Platform Overview

Core Components:

  • Shopify CLI - Development workflow tool
  • GraphQL Admin API - Primary API for data operations (recommended)
  • REST Admin API - Legacy API (maintenance mode)
  • Polaris UI - Design system for consistent interfaces
  • Liquid - Template language for themes

Extension Points:

  • Checkout UI - Customize checkout experience
  • Admin UI - Extend admin dashboard
  • POS UI - Point of Sale customization
  • Customer Account - Post-purchase pages
  • Theme App Extensions - Embedded theme functionality

Quick Start

Prerequisites

# Install Shopify CLI
npm install -g @shopify/cli@latest

# Verify installation
shopify version

Create New App

# Initialize app
shopify app init

# Start development server
shopify app dev

# Generate extension
shopify app generate extension --type checkout_ui_extension

# Deploy
shopify app deploy

Theme Development

# Initialize theme
shopify theme init

# Start local preview
shopify theme dev

# Pull from store
shopify theme pull --live

# Push to store
shopify theme push --development

Development Workflow

1. App Development

Setup:

shopify app init
cd my-app

Configure Access Scopes (shopify.app.toml):

[access_scopes]
scopes = "read_products,write_products,read_orders"

Start Development:

shopify app dev  # Starts local server with tunnel

Add Extensions:

shopify app generate extension --type checkout_ui_extension

Deploy:

shopify app deploy  # Builds and uploads to Shopify

2. Extension Development

Available Types:

  • Checkout UI - checkout_ui_extension
  • Admin Action - admin_action
  • Admin Block - admin_block
  • POS UI - pos_ui_extension
  • Function - function (discounts, payment, delivery, validation)

Workflow:

shopify app generate extension
# Select type, configure
shopify app dev  # Test locally
shopify app deploy  # Publish

3. Theme Development

Setup:

shopify theme init
# Choose Dawn (reference theme) or start fresh

Local Development:

shopify theme dev
# Preview at localhost:9292
# Auto-syncs to development theme

Deployment:

shopify theme push --development  # Push to dev theme
shopify theme publish --theme=123  # Set as live

When to Build What

Build an App When:

  • Integrating external services
  • Adding functionality across multiple stores
  • Building merchant-facing admin tools
  • Managing store data programmatically
  • Implementing complex business logic
  • Charging for functionality

Build an Extension When:

  • Customizing checkout flow
  • Adding fields/features to admin pages
  • Creating POS actions for retail
  • Implementing discount/payment/shipping rules
  • Extending customer account pages

Build a Theme When:

  • Creating custom storefront design
  • Building unique shopping experiences
  • Customizing product/collection pages
  • Implementing brand-specific layouts
  • Modifying homepage/content pages

Combination Approach:

App + Theme Extension:

  • App handles backend logic and data
  • Theme extension provides storefront UI
  • Example: Product reviews, wishlists, size guides

Essential Patterns

GraphQL Product Query

query GetProducts($first: Int!) {
  products(first: $first) {
    edges {
      node {
        id
        title
        handle
        variants(first: 5) {
          edges {
            node {
              id
              price
              inventoryQuantity
            }
          }
        }
      }
    }
    pageInfo {
      hasNextPage
      endCursor
    }
  }
}

Checkout Extension (React)

import { reactExtension, BlockStack, TextField, Checkbox } from '@shopify/ui-extensions-react/checkout';

export default reactExtension('purchase.checkout.block.render', () => <Extension />);

function Extension() {
  const [message, setMessage] = useState('');

  return (
    <BlockStack>
      <TextField label="Gift Message" value={message} onChange={setMessage} />
    </BlockStack>
  );
}

Liquid Product Display

{% for product in collection.products %}
  <div class="product-card">
    <img src="{{ product.featured_image | img_url: 'medium' }}" alt="{{ product.title }}">
    <h3>{{ product.title }}</h3>
    <p>{{ product.price | money }}</p>
    <a href="{{ product.url }}">View Details</a>
  </div>
{% endfor %}

Best Practices

API Usage:

  • Prefer GraphQL over REST for new development
  • Request only needed fields to reduce costs
  • Implement pagination for large datasets
  • Use bulk operations for batch processing
  • Respect rate limits (cost-based for GraphQL)

Security:

  • Store API credentials in environment variables
  • Verify webhook signatures
  • Use OAuth for public apps
  • Request minimal access scopes
  • Implement session tokens for embedded apps

Performance:

  • Cache API responses when appropriate
  • Optimize images in themes
  • Minimize Liquid logic complexity
  • Use async loading for extensions
  • Monitor query costs in GraphQL

Testing:

  • Use development stores for testing
  • Test across different store plans
  • Verify mobile responsiveness
  • Check accessibility (keyboard, screen readers)
  • Validate GDPR compliance

Reference Documentation

Detailed guides for advanced topics:

  • App Development - OAuth, APIs, webhooks, billing
  • Extensions - Checkout, Admin, POS, Functions
  • Themes - Liquid, sections, deployment

Scripts

shopify_init.py - Initialize Shopify projects interactively

python scripts/shopify_init.py

Troubleshooting

Rate Limit Errors:

  • Monitor X-Shopify-Shop-Api-Call-Limit header
  • Implement exponential backoff
  • Use bulk operations for large datasets

Authentication Failures:

  • Verify access token validity
  • Check required scopes granted
  • Ensure OAuth flow completed

Extension Not Appearing:

  • Verify extension target correct
  • Check extension published
  • Ensure app installed on store

Webhook Not Receiving:

  • Verify webhook URL accessible
  • Check signature validation
  • Review logs in Partner Dashboard

Resources

Official Documentation:

Tools:

  • GraphiQL Explorer (Admin → Settings → Apps → Develop apps)
  • Partner Dashboard (app management)
  • Development stores (free testing)

API Versioning:

  • Quarterly releases (YYYY-MM format)
  • Current: 2025-01
  • 12-month support per version
  • Test before version updates

Note: This skill covers Shopify platform as of January 2025. Refer to official documentation for latest updates.

FAQ

What does the shopify skill do?

Shopify platform development. Stack: Shopify CLI, GraphQL/REST APIs, Polaris UI, Liquid templating. Capabilities: app development (OAuth), checkout UI extensions, admin UI extensions, POS extensions, theme development, webhooks, billing API, product/order/customer management. Actions: build, extend, customize, integrate Shopify apps/themes. Keywords: Shopify, Shopify CLI, GraphQL Admin API, REST API, Polaris, Liquid, checkout extension, admin extension, POS extension, theme, webhook, billing API, OAuth, app bridge, metafields, product, order, customer, storefront, hydrogen, oxygen. Use when: building Shopify apps, customizing checkout, creating admin interfaces, developing themes, integrating payments, managing store data via APIs, extending Shopify functionality.

How do I install shopify?

Run npx skills add https://github.com/samhvw8/dotfiles --skill shopify in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/shopify/ (personal) or .claude/skills/shopify/ (project).

Which AI agents can use shopify?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is shopify safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains shopify?

It is published by samhvw8 in samhvw8/dotfiles. It has 41 recorded installs.

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