Shopify Local Dev Loop

What it does

When your agent uses it

• Setting up a development environment
• Configuring test workflows
• Establishing a fast iteration cycle with Shopify
• With phrases like shopify dev setup

Example prompts

• “shopify dev setup”
• “shopify local development”
• “shopify dev environment”
• “/shopify-local-dev-loop”

Requirements

• Node.js
• A credential in SHOPIFY_API_KEY
• Compatibility (from SKILL.md): Designed for Claude Code
• Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(npm:*), Bash(pnpm:*), Bash(npx:*), Bash(shopify:*), Grep

Workflow steps

6 steps, taken from the step headings in SKILL.md.

1. 1Scaffold with Shopify CLI
2. 2Project Structure
3. 3Configure shopify.app.toml
4. 4Start Dev Server with Tunnel
5. 5Set Up Testing
6. 6GraphQL Explorer for Development

What it can do on your machine

Read from SKILL.md and the folder at commit 23ea8d4. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Edit
  • Bash(npm:*)
  • Bash(pnpm:*)
  • Bash(npx:*)
  • Bash(shopify:*)
  • Grep

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • shopify
  • npm
  • curl

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Links to these hosts (documentation or services it may open):

  • shopify.dev
  • github.com
  • vitest.dev

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names these keys or tokens, usually read from environment variables:

  • SHOPIFY_API_KEY

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

• Compatibility

  Designed for Claude Code

  From compatibility in the SKILL.md frontmatter.

Context cost

Shopify Local Dev Loop loads about 1.3k tokens when it runs, and up to ~1.9k if it reads all its reference files. Until then it costs about 96 tokens; SKILL.md has 249 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~96

When it runs · the whole SKILL.md, loaded when a task matches

~1.3k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~1.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

• NoteMentions a .env fileSKILL.md:68

  ├── .env                         # Local secrets (git-ignored)

• NoteMentions a .env fileSKILL.md:129

  | `SHOPIFY_API_KEY not set` | Missing .env | Copy from `.env.example` and fill in values |

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit 23ea8d4, republished under its MIT licence (© jeremylongshore). 249 words, ~1,327 tokens.

name

shopify-local-dev-loop

description

Configure Shopify local development with Shopify CLI, hot reload, and ngrok tunneling. Use when setting up a development environment, configuring test workflows, or establishing a fast iteration cycle with Shopify. Trigger with phrases like "shopify dev setup", "shopify local development", "shopify dev environment", "develop with shopify", "shopify CLI dev".

allowed-tools

Read, Write, Edit, Bash(npm:*), Bash(pnpm:*), Bash(npx:*), Bash(shopify:*), Grep

compatibility

Designed for Claude Code

version

2.7.0

license

MIT

author

Jeremy Longshore <jeremy@intentsolutions.io>

tags

saas, ecommerce, shopify

# Create a new Remix-based Shopify app (recommended)
shopify app init

# Or scaffold manually
mkdir my-shopify-app && cd my-shopify-app
npm init -y
npm install @shopify/shopify-api @shopify/shopify-app-remix \
  @shopify/app-bridge-react @remix-run/node @remix-run/react

my-shopify-app/
├── app/
│   ├── routes/
│   │   ├── app._index.tsx      # Main app page
│   │   ├── app.products.tsx    # Products management
│   │   ├── auth.$.tsx          # OAuth callback
│   │   └── webhooks.tsx        # Webhook handler
│   ├── shopify.server.ts       # Shopify API client setup
│   └── root.tsx
├── extensions/                  # Theme app extensions
├── shopify.app.toml             # App configuration
├── .env                         # Local secrets (git-ignored)
├── .env.example                 # Template for team
└── package.json

# Shopify CLI handles ngrok tunnel + OAuth automatically
shopify app dev

# This will:
# 1. Start your app on localhost:3000
# 2. Create an ngrok tunnel
# 3. Update your app URLs in Partner Dashboard
# 4. Open your app in the dev store admin
# 5. Hot reload on file changes

# Open the Shopify GraphiQL explorer for your store
# Navigate to: https://your-store.myshopify.com/admin/api/2025-04/graphql.json
# Use the Shopify Admin GraphiQL app (install from admin)

# Or use curl to test queries directly:
curl -X POST \
  "https://your-store.myshopify.com/admin/api/${SHOPIFY_API_VERSION:-2025-04}/graphql.json" \
  -H "Content-Type: application/json" \
  -H "X-Shopify-Access-Token: shpat_xxx" \
  -d '{"query": "{ shop { name } }"}'

// Enable verbose request logging in development
import { LogSeverity } from "@shopify/shopify-api";

const shopify = shopifyApi({
  // ... other config
  logger: {
    level: LogSeverity.Debug, // Logs all requests/responses
    httpRequests: true,
    timestamps: true,
  },
});

// scripts/seed-dev-store.ts — create test products
async function seedStore(client: any) {
  const products = [
    { title: "Test Widget", productType: "Widget", vendor: "Dev" },
    { title: "Test Gadget", productType: "Gadget", vendor: "Dev" },
  ];

  for (const product of products) {
    await client.request(`
      mutation { productCreate(product: {
        title: "${product.title}",
        productType: "${product.productType}",
        vendor: "${product.vendor}"
      }) {
        product { id title }
        userErrors { field message }
      }}
    `);
  }
}

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in skills/.curated/shopify-local-dev-loop of jeremylongshore/tons-of-skills-marketplace.

• SKILL.md
• references/app-toml-config.md
• references/vitest-shopify-mock.md

Open the folder on GitHubat commit 23ea8d4