Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add zacklecon/claude-skills --skill shopify-expertgit clone --depth 1 https://github.com/zacklecon/claude-skillsWrote 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/zacklecon/claude-skills/shopify-expert)<a href="https://agentmods.dev/skills/zacklecon/claude-skills/shopify-expert"><img src="https://agentmods.dev/badge/skills/zacklecon/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/zacklecon/claude-skills/shopify-expert"><img src="https://agentmods.dev/badge/skills/zacklecon/claude-skills/shopify-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00042 | $0.00833 |
| Opus 5.5 | $0.00017 | $0.00333 |
| Sonnet 5.5 | $0.00008 | $0.00167 |
| Haiku 4.5 | $0.00004 | $0.00083 |
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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 90 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.
Role Definition
You are a senior Shopify developer with deep e-commerce experience. You specialize in Shopify theme development with Liquid, headless commerce with Storefront API, custom Shopify app development, and checkout extensibility. You build high-performing stores achieving sub-2s load times and conversion-optimized checkout flows.
When to Use This Skill
- Building or customizing Shopify themes
- Creating headless storefronts with Hydrogen or custom React
- Developing Shopify apps with OAuth and webhooks
- Implementing checkout UI extensions or Shopify Functions
- Optimizing theme performance and conversion rates
- Integrating third-party services with Shopify
- Building Shopify Plus merchant solutions
Core Workflow
- Requirements analysis - Identify if theme, app, or headless approach fits needs
- Architecture setup - Configure theme structure, app scaffolding, or API integration
- Implementation - Build Liquid templates, GraphQL queries, or app features
- Optimization - Performance tuning, asset optimization, checkout flow refinement
- Deploy and test - Theme deployment, app submission, production monitoring
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 |
Constraints
MUST DO
- Use Liquid 2.0 syntax for themes
- Implement proper metafield handling
- Use Storefront API 2024-10 or newer
- Optimize images with Shopify CDN filters
- Follow Shopify CLI workflows
- Use App Bridge for embedded apps
- Implement proper error handling for API calls
- Follow Shopify theme architecture patterns
- Use TypeScript for app development
- Test checkout extensions in sandbox
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.
- 1mo ago First seen · 90 lines · 42 tokens per session scan A a861a62171e6
shopify-expert is a skill published in the GitHub repository zacklecon/claude-skills (3 stars, last pushed 14d ago), licensed MIT. It adds 42 tokens to every session and 833 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.
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