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/maxnorm/magento2-agent-skills/magento-theme-developernpx skills add maxnorm/magento2-agent-skills --skill magento-theme-developergit clone --depth 1 https://github.com/maxnorm/magento2-agent-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/maxnorm/magento2-agent-skills/magento-theme-developer)<a href="https://agentmods.dev/skills/maxnorm/magento2-agent-skills/magento-theme-developer"><img src="https://agentmods.dev/badge/skills/maxnorm/magento2-agent-skills/magento-theme-developer.svg" alt="Measured on agentmods" 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 | $0.00054 | $0.01333 |
| Opus 5 | $0.00027 | $0.00666 |
| Sonnet 5 | $0.00011 | $0.00267 |
| Haiku 4.5 | $0.00005 | $0.00133 |
Grade A, and why
magento-theme-developer 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 6d 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 — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Magento 2 Theme Developer
Expert specialist in creating stunning, performant, and maintainable themes that deliver exceptional user experiences while adhering to Magento's frontend architecture principles.
When to Use
- Creating custom themes or child themes
- Customizing frontend appearance and layout
- Implementing responsive design
- Working with layout XML and templates
- Optimizing frontend performance
- Modifying existing themes
Theme Development Process
1. Planning & Design Analysis
- Design System Review: Analyze design mockups and create component libraries
- Technical Requirements: Identify custom components and functionality needs
- Performance Goals: Set loading time and performance benchmarks
- Browser Support: Define supported browsers and testing matrix
- Accessibility Standards: Plan for WCAG compliance and screen reader support
2. Theme Architecture Setup
- Base Theme Selection: Choose appropriate parent theme (Blank, Luma, or custom)
- Child Theme Creation: Set up theme inheritance structure
- Asset Organization: Plan CSS, JavaScript, and image file structure
- Build Process: Configure compilation and optimization workflows
- Version Control: Establish theme development and deployment strategies
3. Theme Structure
app/design/frontend/Vendor/theme-name/
├── etc/
│ └── view.xml
├── media/
│ └── preview.jpg
├── web/
│ ├── css/
│ ├── js/
│ └── images/
├── registration.php
└── theme.xml
4. Layout Development
- Page Layouts: Create custom page layouts and page configurations
- Layout Updates: Implement layout XML modifications and customizations
- Block Customization: Customize and extend Magento's block classes
- Container Management: Organize content containers and responsive behavior
- Template Hierarchy: Plan template file organization and reusability
5. Styling Implementation
- Component Styling: Develop modular, reusable CSS components
- Responsive Breakpoints: Implement mobile-first responsive design
- Typography System: Create consistent typography scales and hierarchies
- Color Systems: Implement theme color variables and variations
- Animation & Interactions: Add smooth transitions and micro-interactions
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.
- 6d ago First seen · 157 lines · 54 tokens per session scan A f8a898832bac
magento-theme-developer is a skill published in the GitHub repository maxnorm/magento2-agent-skills (29 stars, last pushed 7mo ago), licensed MIT. It adds 54 tokens to every session and 1,333 once invoked, about $0.0003 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.
Other skills, from other repositories
magento2-frontend-dev
This skill should be used when the user asks to "create a Knockout.js component", "add a UI Component", "modify layout XML", "customize a template", "write LESS CSS", "style with the Magento UI library", "add a RequireJS module", "extend JavaScript", "customize checkout", or "modify the cart page". Covers Magento 2…
magento-hyva
Build Hyva theme templates, Alpine.js components, Tailwind CSS styles, and View Models for Magento 2. Use when developing frontend for Hyva-based Magento stores.
magento2-hyva-dev
This skill should be used when the user asks to "create a Hyvä theme", "set up a child theme", "build an Alpine.js component", "make this CSP-compliant", "add Tailwind CSS classes", "convert Luma to Hyvä", "migrate Knockout to Alpine", work on "Hyvä checkout" or "Hyvä React components", or handle "Tailwind…
shopify-theme-optimization
Theme speed and UX optimization — Core Web Vitals, Liquid code, image loading, mobile responsiveness.
shopify
Expert Shopify theme development guidelines for Liquid, Online Store 2.0, CSS, JavaScript, and UX best practices.
shopify-theme-development-guidelines
Expert Shopify theme development with Liquid, Online Store 2.0, and performance best practices.