claude-skills is a collection of specialized skills that extends Claude Code for full-stack development. Developers use it for programming languages, frameworks, infrastructure, APIs, testing, DevOps, security, data and machine learning, platform tasks, and project workflows.
Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/Jeffallan/claude-skillsnpx agentmods add skills/jeffallan/claude-skills/shopify-expertWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jeffallan/claude-skills/shopify-expert)<a href="https://agentmods.dev/skills/jeffallan/claude-skills/shopify-expert"><img src="https://agentmods.dev/badge/skills/jeffallan/claude-skills/shopify-expert/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jeffallan/claude-skills/shopify-expert"><img src="https://agentmods.dev/badge/skills/jeffallan/claude-skills/shopify-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00117 | $0.01547 |
| Opus 5 | $0.00059 | $0.00773 |
| Sonnet 5 | $0.00023 | $0.00309 |
| Haiku 4.5 | $0.00012 | $0.00155 |
Grade A, and why
shopify-expert scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- shopify-expert — 94% identical, 2 lines differ
How it starts
The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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 initorshopify app create; configureshopify.app.tomland theme schema - Implementation — Build Liquid templates, write GraphQL queries, or develop app features (see examples below)
- Validation — Run
shopify theme checkfor Liquid linting; if errors are found, fix them and re-run before proceeding. Runshopify app devto 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 pushfor themes;shopify app deployfor 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 | references/storefront-api.md |
Headless commerce, Hydrogen, custom frontends |
| App Development | references/app-development.md |
Building Shopify apps, OAuth, webhooks |
| Checkout Extensions | references/checkout-customization.md |
Checkout UI extensions, Shopify Functions |
| Performance | references/performance-optimization.md |
Theme speed, asset optimization, caching |
Code Examples
Liquid — Product template with metafield access
{% 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 }}
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 187 lines · 117 tokens per session scan A f3f9ee3c3970
shopify-expert is a skill published in the GitHub repository Jeffallan/claude-skills (11,401 stars, last pushed 1mo ago), licensed MIT. It adds 117 tokens to every session and 1,547 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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