shopify-expert

Jeffallan/claude-skillsE-CommerceAudit passedSnapshot 462ff0de59a1

Summary

Builds and debugs Shopify themes (.liquid files, theme.json, sections), develops custom Shopify apps (shopify.app.toml, OAuth, webhooks), and implements Storefront API integrations for headless storefronts. Use when building or customizing Shopify themes, creating Hydrogen or custom React storefronts, developing Shopify apps, implementing checkout UI extensions or Shopify Functions, optimizing performance, or integrating third-party services. Invoke for Liquid templating, Storefront API, app development, checkout customization, Shopify Plus features, App Bridge, Polaris, or Shopify CLI workflows.

SKILL.md

Shopify Expert

Senior Shopify developer with expertise in theme development, headless commerce, app architecture, and custom checkout solutions.

Core Workflow

Requirements analysis — Identify if theme, app, or headless approach fits needs
Architecture setup — Scaffold with shopify theme init or shopify app create; configure shopify.app.toml and theme schema
Implementation — Build Liquid templates, write GraphQL queries, or develop app features (see examples below)
Validation — Run shopify theme check for Liquid linting; if errors are found, fix them and re-run before proceeding. Run shopify app dev to verify app locally; test checkout extensions in sandbox. If validation fails at any step, resolve all reported issues before moving to deployment
Deploy and monitor — shopify theme push for themes; shopify app deploy for apps; watch Shopify error logs and performance metrics post-deploy

Reference Guide

Load detailed guidance based on context:

Topic	Reference	Load When
Liquid Templating	`references/liquid-templating.md`	Theme development, template customization
Storefront API

{% comment %} templates/product.liquid {% endcomment %}
<h1>{{ product.title }}</h1>
<p>{{ product.metafields.custom.care_instructions.value }}</p>

{% for variant in product.variants %}
  <option
    value="{{ variant.id }}"
    {% unless variant.available %}disabled{% endunless %}
  >
    {{ variant.title }} — {{ variant.price | money }}
  </option>
{% endfor %}

{{ product.description | metafield_tag }}

{% comment %} sections/collection-filters.liquid {% endcomment %}
{% for filter in collection.filters %}
  <details>
    <summary>{{ filter.label }}</summary>
    {% for value in filter.values %}
      <label>
        <input
          type="checkbox"
          name="{{ value.param_name }}"
          value="{{ value.value }}"
          {% if value.active %}checked{% endif %}
        >
        {{ value.label }} ({{ value.count }})
      </label>
    {% endfor %}
  </details>
{% endfor %}

query ProductByHandle($handle: String!) {
  product(handle: $handle) {
    id
    title
    descriptionHtml
    featuredImage {
      url(transform: { maxWidth: 800, preferredContentType: WEBP })
      altText
    }
    variants(first: 10) {
      edges {
        node {
          id
          title
          price { amount currencyCode }
          availableForSale
          selectedOptions { name value }
        }
      }
    }
    metafield(namespace: "custom", key: "care_instructions") {
      value
      type
    }
  }
}

# Theme development
shopify theme dev --store=your-store.myshopify.com   # Live preview with hot reload
shopify theme check                                   # Lint Liquid for errors/warnings
shopify theme push --only templates/ sections/        # Partial push
shopify theme pull                                    # Sync remote changes locally

# App development
shopify app create node                               # Scaffold Node.js app
shopify app dev                                       # Local dev with ngrok tunnel
shopify app deploy                                    # Submit app version
shopify app generate extension                        # Add checkout UI extension

# GraphQL
shopify app generate graphql                          # Generate typed GraphQL hooks

import { authenticate } from "../shopify.server";
import type { LoaderFunctionArgs } from "@remix-run/node";

export const loader = async ({ request }: LoaderFunctionArgs) => {
  const { admin } = await authenticate.admin(request);

  const response = await admin.graphql(`
    query {
      shop { name myshopifyDomain plan { displayName } }
    }
  `);

  const { data } = await response.json();
  return data.shop;
};

shopify-expert

Summary

SKILL.md

Shopify Expert

Core Workflow

Reference Guide

Code Examples

Liquid — Product template with metafield access

Liquid — Collection filtering (Online Store 2.0)

Storefront API — GraphQL product query

Shopify CLI — Common commands

App — Authenticated Admin API fetch (TypeScript)

Constraints

MUST DO

MUST NOT DO

Output Templates

Knowledge Reference

Related skills