shopify-claude-quickstart: Instructions file for Claude Code

CLAUDE.md

shopify-claude-quickstart CLAUDE.md is an instructions file for Claude Code from jameywarren/shopify-claude-quickstart. It costs 3,904 tokens per session, scanned A, original, MIT.

A set of automatically loaded instructions for working on an existing Shopify store with Claude Code. Shopify is a hosted platform for running online stores.

In plain words
What is it for?
Guiding Shopify changes, including validating GraphQL operations and preparing theme updates while requiring explicit permission for mutations.
Why use it?
It gives each session the project context, required tools, safety checks, and boundaries for store operations.

Instructions file for Claude Code

Written for Claude Code: SessionStart hook event. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

This is jameywarren/shopify-claude-quickstart's own configuration. It tells Claude Code how to work on shopify-claude-quickstart itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything shopify-claude-quickstart configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jameywarren/shopify-claude-quickstart. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/jameywarren/shopify-claude-quickstart/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/jameywarren/shopify-claude-quickstart

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 3,904 This file is loaded in full into every session.
When invoked 3,904 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.03904 $0.03904
Opus 5 $0.01952 $0.01952
Sonnet 5 $0.00781 $0.00781
Haiku 4.5 $0.00390 $0.00390

Measured 9d ago against content hash 9650091539a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

shopify-claude-quickstart CLAUDE.md 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 9d 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.

CLAUDE.md · 313 lines

How it starts

The opening of the file, as written. The whole thing — 313 lines — stays where its author put it; the contents beside it link to each section on GitHub.

shopify-claude-quickstart — Project Context

This file is loaded automatically by Claude Code at the start of every session. It tells you what this project is, what tools to use, and the rules for working here.


TOOLKIT ORIENTATION (Read This Every Session)

You are working with the Shopify Dev plugin (often called the "Shopify AI Toolkit") — skills and CLI capabilities that connect you directly to the Shopify platform.

Prerequisite: The shopify-plugin:shopify-* skills must be installed and enabled. Nearly every command in this toolkit depends on them. If they aren't available, install the Shopify Dev plugin from the Claude Code plugin marketplace before proceeding.

Core rules

  • This is a store operations project — operating an existing Shopify store.
  • Validate every GraphQL operation with shopify-plugin:shopify-admin before executing it with shopify-plugin:shopify-admin-execution.
  • Mutations require --allow-mutations on shopify store execute. Without that flag, only queries run. This is the primary safety guardrail — respect it.
  • Prefer the active theme's own sections and blocks over custom Liquid whenever an existing primitive can do the job. Check store-data/theme/sections/ (and store-data/theme/blocks/ for block-based themes) first — regardless of whether the theme is Dawn, Horizon, Craft, Impulse, Impact, or any other OS 2.0 theme.
  • Use the toolkit, don't reinvent it. The skills are already installed.
  • At session start, read docs/session-log.md (last entry) before proposing anything. Open questions and the "Next Session" action from the previous session take priority over fresh suggestions.
  • Read local store snapshots before querying the API. If store-data/pages.json, store-data/navigation.json, store-data/collections.json, or store-data/products-index.csv exist, read them for store context. Run /pull-store-data to create or refresh them.
  • /init-store runs once. Shopify CLI auth tokens persist in the OS keychain between sessions. If auth has expired, run /check-auth — not /init-store. Running init-store again re-pulls the theme and overwrites CLAUDE.md.
  • Before any theme edit, read the THEME NOTES section at the bottom of this file. It records quirks discovered in previous sessions — re-discovering them wastes time.

Read the full file on GitHub · 313 lines

Changes

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.

  1. 9d ago First seen · 313 lines · 3,904 tokens per session scan A 9650091539a0

Subscribe to this mod's changes

shopify-claude-quickstart CLAUDE.md is an instructions file published in the GitHub repository jameywarren/shopify-claude-quickstart (2 stars, last pushed 4mo ago), licensed MIT. It adds 3,904 tokens to every session, about $0.0195 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 2026-08-31.

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