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 agentmods add skills/manhvann/codexkit/shopifynpx skills add manhvann/codexkit --skill shopifygit clone --depth 1 https://github.com/manhvann/codexkitWhat 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 | $0.00039 | $0.01673 |
| Opus 5 | $0.00019 | $0.00837 |
| Sonnet 5 | $0.00008 | $0.00335 |
| Haiku 4.5 | $0.00004 | $0.00167 |
Grade A, and why
ck:shopify 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 2d 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 — 321 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Shopify Development
Comprehensive guide for building on Shopify platform: apps, extensions, themes, and API integrations.
Platform Overview
Core Components:
- Shopify CLI - Development workflow tool
- GraphQL Admin API - Primary API for data operations (recommended)
- REST Admin API - Legacy API (maintenance mode)
- Polaris UI - Design system for consistent interfaces
- Liquid - Template language for themes
Extension Points:
- Checkout UI - Customize checkout experience
- Admin UI - Extend admin dashboard
- POS UI - Point of Sale customization
- Customer Account - Post-purchase pages
- Theme App Extensions - Embedded theme functionality
Quick Start
Prerequisites
# Install Shopify CLI
npm install -g @shopify/cli@latest
# Verify installation
shopify version
Create New App
# Initialize app
shopify app init
# Start development server
shopify app dev
# Generate extension
shopify app generate extension --type checkout_ui_extension
# Deploy
shopify app deploy
Theme Development
# Initialize theme
shopify theme init
# Start local preview
shopify theme dev
# Pull from store
shopify theme pull --live
# Push to store
shopify theme push --development
Development Workflow
1. App Development
Setup:
shopify app init
cd my-app
Configure Access Scopes (shopify.app.toml):
[access_scopes]
scopes = "read_products,write_products,read_orders"
Start Development:
shopify app dev # Starts local server with tunnel
Add Extensions:
shopify app generate extension --type checkout_ui_extension
Deploy:
shopify app deploy # Builds and uploads to Shopify
2. Extension Development
Available Types:
- Checkout UI -
checkout_ui_extension - Admin Action -
admin_action - Admin Block -
admin_block - POS UI -
pos_ui_extension - Function -
function(discounts, payment, delivery, validation)
Workflow:
shopify app generate extension
# Select type, configure
shopify app dev # Test locally
shopify app deploy # Publish
What ships with it
7 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.
- 2d ago First seen · 321 lines · 39 tokens per session scan A ba4bf077912d
ck:shopify is a skill published in the GitHub repository manhvann/codexkit (88 stars, last pushed 4d ago), licensed MIT. It adds 39 tokens to every session and 1,673 once invoked, about $0.0002 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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