Shopify Security Basics

What it does

When your agent uses it

• Securing API keys
• Validating webhook signatures
• Auditing Shopify security configuration
• With phrases like shopify security

Example prompts

• “shopify security”
• “shopify secrets”
• “secure shopify”
• “/shopify-security-basics”

Requirements

• A credential in SHOPIFY_API_KEY
• A credential in SHOPIFY_API_SECRET
• Compatibility (from SKILL.md): Designed for Claude Code
• Pre-approved tools (allowed-tools): Read, Write, Grep

Workflow steps

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

1. 1Secure Credential Storage
2. 2Webhook HMAC Verification
3. 3OAuth Request Verification
4. 4Minimal Access Scopes
5. 5Content Security Policy for Embedded Apps

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. 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
  • Grep

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • git
  • brew

  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

  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
  • SHOPIFY_API_SECRET
  • SHOPIFY_ACCESS_TOKEN

  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 Security Basics 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 91 tokens; SKILL.md has 400 words of instructions outside code blocks.

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

~91

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:44

  # .env — NEVER commit

• NoteMentions a .env fileSKILL.md:50

  .env

• NoteMentions a .env fileSKILL.md:51

  .env.local

• NoteMentions a .env fileSKILL.md:52

  .env.*.local

• NoteMentions a .env fileSKILL.md:135

  - [ ] `.env` files in `.gitignore`

• NoteRuns commands with sudoSKILL.md:149

  # or: sudo apt install git-secrets  # Linux

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 cfae287, republished under its MIT licence (© jeremylongshore). 400 words, ~1,328 tokens.

name

shopify-security-basics

description

Apply Shopify security best practices for API credentials, webhook HMAC validation, and access scope management. Use when securing API keys, validating webhook signatures, or auditing Shopify security configuration. Trigger with phrases like "shopify security", "shopify secrets", "secure shopify", "shopify HMAC", "shopify webhook verify".

allowed-tools

Read, Write, Grep

compatibility

Designed for Claude Code

version

2.7.0

license

MIT

author

Jeremy Longshore <jeremy@intentsolutions.io>

tags

saas, ecommerce, shopify

# .env — NEVER commit
SHOPIFY_API_KEY=your_api_key
SHOPIFY_API_SECRET=your_api_secret_key
SHOPIFY_ACCESS_TOKEN=shpat_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

# .gitignore — add immediately
.env
.env.local
.env.*.local
*.pem

# shopify.app.toml — start minimal, add as needed
[access_scopes]
scopes = "read_products"

# Use optional scopes for features that not all merchants need
[access_scopes.optional]
scopes = "write_products,read_orders"

// Embedded apps must set proper CSP headers
app.use((req, res, next) => {
  const shop = req.query.shop as string;
  res.setHeader(
    "Content-Security-Policy",
    `frame-ancestors https://${shop} https://admin.shopify.com;`
  );
  next();
});

# Install git-secrets
brew install git-secrets  # macOS
# or: sudo apt install git-secrets  # Linux

# Add Shopify patterns
git secrets --add 'shpat_[a-f0-9]{32}'
git secrets --add 'shpss_[a-f0-9]{32}'

# Install hook
git secrets --install

© 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-security-basics of jeremylongshore/tons-of-skills-marketplace.

• SKILL.md
• references/oauth-request-verification.md
• references/webhook-hmac-verification.md

Open the folder on GitHubat commit cfae287