shopify-hydrogen

shopify-hydrogen is a skill for Claude Code, Codex from Shopify/agent-skills. It costs 0 tokens per session (33,821 once invoked), scanned C, original, no licence file.

A Shopify Hydrogen skill for updating raw API instructions and generating distributed agent skills. Hydrogen is Shopify's web framework for storefronts.

In plain words
What is it for?
Use it to edit `src/data/raw-api-instructions/{api}.md` in `shopify-dev-tools` and run `npm run generateagentskills`.
Why use it?
It documents the required file and generation command, reducing guesswork when changing Shopify agent instructions.

Skill for Claude CodeCodex ✓ vendor

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to edit src/data/raw-api-instructions/{api}.md in shopify-dev-tools and run npm run generateagentskills.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/shopify/agent-skills/shopify-hydrogen
Install

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.

Any agent
npx skills add Shopify/agent-skills --skill shopify-hydrogen
Clone the repo
git clone --depth 1 https://github.com/Shopify/agent-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for shopify-hydrogen

README.md
[![agentmods](https://agentmods.dev/badge/skills/shopify/agent-skills/shopify-hydrogen/github.svg)](https://agentmods.dev/skills/shopify/agent-skills/shopify-hydrogen)
Your own site
<a href="https://agentmods.dev/skills/shopify/agent-skills/shopify-hydrogen"><img src="https://agentmods.dev/badge/skills/shopify/agent-skills/shopify-hydrogen/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.

agentmods 80×15 button for shopify-hydrogen

Your own site · 80×15
<a href="https://agentmods.dev/skills/shopify/agent-skills/shopify-hydrogen"><img src="https://agentmods.dev/badge/skills/shopify/agent-skills/shopify-hydrogen.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 33,821 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00000 $0.33821
Opus 5 $0.00000 $0.16910
Sonnet 5 $0.00000 $0.06764
Haiku 4.5 $0.00000 $0.03382

Measured 9d ago against content hash c8602c1fabaf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

shopify-hydrogen scanned grade C with 1 finding 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/search_docs.js, scripts/validate.js), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- AUTO-GENERATED — do not edit directly. Edit src/data/raw-api-instructions/{api}.md in shopify-dev-tools, then run: npm run generate_agent_skills (outputs to distributed-agent-skills/) -->
shopify-hydrogen/SKILL.md · 3,359 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

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.

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 · 3,359 lines · 0 tokens per session scan C c8602c1fabaf

Subscribe to this mod's changes

shopify-hydrogen is a skill published in the GitHub repository Shopify/agent-skills (76 stars, last pushed 2mo ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 33,821 tokens. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

shopify-expert

Builds and debugs Shopify themes (.liquid files, theme.json, sections), develops custom Shopify apps (shopify.app.toml, OAuth, webhooks), and implements Storefront API integrations for headless storefronts. Use when building or customizing Shopify themes, creating Hydrogen or custom React storefronts, developing…

Jeffallan/claude-skills · 117 tokens

shopify-theme-optimization

Theme speed and UX optimization — Core Web Vitals, Liquid code, image loading, mobile responsiveness.

nexscope-ai/eCommerce-Skills · 25 tokens

commerce-app-admin-ui

Add or modify Adobe Commerce Admin UI extensions on the commerce/backend-ui/2 extension point: custom grid columns, mass actions, order view buttons, and a custom Admin menu entry. Use whenever the user wants to extend the Commerce Admin — add a column to the order, product, or customer grid, add a bulk/mass action to…

adobe/skills · 102 tokens

shopify

Expert Shopify theme development guidelines for Liquid, Online Store 2.0, CSS, JavaScript, and UX best practices.

Mindrally/skills · 27 tokens

shopify-theme-development-guidelines

Expert Shopify theme development with Liquid, Online Store 2.0, and performance best practices.

Mindrally/skills · 25 tokens

b2c-page-designer

Define Page Designer page types and component types with regions, attributes, and rendering scripts. Use this skill whenever the user needs to create a new page or component type, configure regions with allowed component constraints, define attributedefinitiongroups, debug why a component does not appear in the…

SalesforceCommerceCloud/b2c-developer-tooling · 99 tokens