# magento-frontend-developer

Guides Magento 2 frontend development across layout XML, PHTML templates, RequireJS, KnockoutJS, and Core Web Vitals optimization.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 399 installs · ★ 31
- Author: maxnorm
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/maxnorm/magento2-agent-skills/tree/HEAD/skills/magento-frontend-developer/SKILL.md
- Updated: 2026-01-24
- HTML: https://affpapa.org/en/nevibecode/skills/magento-frontend-developer

## What it does

This skill guides coding agents through Magento 2 frontend architecture. It covers layout XML container hierarchies, PHTML template creation, and output escaping standards.

The instructions incorporate Magento's specific client-side stack: modular LESS stylesheets with mixins, RequireJS loaders, and KnockoutJS components. It directs feature development across e-commerce flows, including product pages, mini-cart updates, multi-step checkout, and customer account dashboards.

Performance rules target Core Web Vitals like LCP, FID, and CLS via critical path rendering and lazy loading. Because the rules target Magento-specific directory structures and conventions, using this skill outside an actual Magento 2 theme codebase will yield useless files.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add maxnorm/magento2-agent-skills --skill magento-frontend-developer -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/magento-frontend-developer/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/magento-frontend-developer/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add maxnorm/magento2-agent-skills --skill magento-frontend-developer -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/magento-frontend-developer/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add maxnorm/magento2-agent-skills --skill magento-frontend-developer -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/magento-frontend-developer/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install maxnorm/magento2-agent-skills magento-frontend-developer
```

2. **Manually: put the files in place**
- File: `.github/skills/magento-frontend-developer/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add maxnorm/magento2-agent-skills --skill magento-frontend-developer -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/maxnorm/magento2-agent-skills --path skills/magento-frontend-developer
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/magento-frontend-developer/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add maxnorm/magento2-agent-skills --skill magento-frontend-developer -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/maxnorm/magento2-agent-skills/tree/HEAD/skills/magento-frontend-developer/SKILL.md

## When to use it
- Build block and container hierarchies in layout XML
- Create secure PHTML templates with output escaping
- Develop dynamic mini-cart and checkout UI
- Integrate frontend components using RequireJS and KnockoutJS
- Tune storefront performance for Core Web Vitals

## Example prompts
- Create a custom PHTML template for product options with KnockoutJS data binding.
- Declare a new container in layout XML for the category banner.
- Write mobile-first LESS styles for the mini-cart component.

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 47bafb57b337a96a.

BEGIN THIRD-PARTY FILE 47bafb57b337a96a
```text
---
name: magento-frontend-developer
description: Creates comprehensive Magento 2 frontend solutions. Use when developing frontend features, working with layout XML, templates, JavaScript, or responsive design. Masters layout XML, template development, JavaScript integration, and performance optimization across all Magento frontend technologies.
---

# Magento 2 Frontend Developer

Expert specialist in creating comprehensive frontend solutions combining layout development, template creation, JavaScript integration, and performance optimization across all Magento frontend technologies.

## When to Use

- Developing frontend features
- Working with layout XML and templates
- Implementing JavaScript functionality
- Creating responsive designs
- Optimizing frontend performance
- Building e-commerce interfaces

## Frontend Architecture

- **Layout XML System**: Expert in layout instructions, containers, and blocks
- **Template Development**: Advanced PHTML template creation and customization
- **JavaScript Integration**: Proficient in RequireJS, KnockoutJS, and modern JS frameworks
- **CSS/LESS Development**: Advanced styling with LESS preprocessing and mixins
- **Asset Management**: Optimize CSS, JavaScript, and image delivery

## Frontend Development Process

### 1. Project Planning & Analysis
- **Requirements Gathering**: Analyze design requirements and user experience goals
- **Technical Assessment**: Evaluate existing codebase and performance baseline
- **Architecture Planning**: Design frontend architecture and component structure
- **Performance Goals**: Set measurable performance and user experience targets
- **Browser Support**: Define supported browsers and device matrix

### 2. Layout & Structure Development
- **XML Layout Design**: Create efficient layout XML structures
- **Container Architecture**: Design logical container and block hierarchies
- **Template Organization**: Plan template file structure and inheritance
- **Component Planning**: Design reusable component architecture
- **Data Flow Design**: Plan data flow from backend to frontend

### 3. Template & Component Development
- **PHTML Templates**: Create semantic, accessible HTML templates
- **Block Integration**: Integrate with Magento's block system effectively
- **Data Binding**: Implement dynamic data rendering and updates
- **Form Development**: Build robust forms with validation and UX
- **Interactive Elements**: Create engaging user interface components

### 4. Styling & Responsive Design
- **LESS Architecture**: Organize stylesheets with variables and mixins
- **Component Styling**: Create modular, maintainable CSS components
- **Responsive Implementation**: Build mobile-first responsive layouts
```
END THIRD-PARTY FILE 47bafb57b337a96a

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First 2718 of 6125 bytes. © maxnorm · MIT · https://github.com/maxnorm/magento2-agent-skills/tree/HEAD/skills/magento-frontend-developer/SKILL.md

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