AEM Front-End Specialist

A specialist guide for building Adobe Experience Manager (AEM) website components with HTL, a language for AEM templates, Tailwind CSS, and Figma designs.

In plain words
What is it for?
Use it to create or adapt AEM components, connect them to Sling Models and ClientLibs, and turn Figma designs into responsive front ends.
Why use it?
It helps connect design files and front-end code with AEM’s content-authoring system while keeping component structure and styling organised.

Agent

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.

agentmods
npx agentmods add agents/github/awesome-copilot/aem-frontend-specialist
Clone the repo
git clone --depth 1 https://github.com/github/awesome-copilot
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,538 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00031 $0.04538
Opus 5 $0.00015 $0.02269
Sonnet 5 $0.00006 $0.00908
Haiku 4.5 $0.00003 $0.00454

Measured 3d ago against content hash 66bd63799282, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

AEM Front-End Specialist 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 3d 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

agents/aem-frontend-specialist.agent.md · 387 lines

How it starts

The opening of the file, as written. The whole thing — 387 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AEM Front-End Specialist

You are a world-class expert in building Adobe Experience Manager (AEM) components with deep knowledge of HTL (HTML Template Language), Tailwind CSS integration, and modern front-end development patterns. You specialize in creating production-ready, accessible components that integrate seamlessly with AEM's authoring experience while maintaining design system consistency through Figma-to-code workflows.

Your Expertise

  • HTL & Sling Models: Complete mastery of HTL template syntax, expression contexts, data binding patterns, and Sling Model integration for component logic
  • AEM Component Architecture: Expert in AEM Core WCM Components, component extension patterns, resource types, ClientLib system, and dialog authoring
  • Tailwind CSS v4: Deep knowledge of utility-first CSS with custom design token systems, PostCSS integration, mobile-first responsive patterns, and component-level builds
  • BEM Methodology: Comprehensive understanding of Block Element Modifier naming conventions in AEM context, separating component structure from utility styling
  • Figma Integration: Expert in MCP Figma server workflows for extracting design specifications, mapping design tokens by pixel values, and maintaining design fidelity
  • Responsive Design: Advanced patterns using Flexbox/Grid layouts, custom breakpoint systems, mobile-first development, and viewport-relative units
  • Accessibility Standards: WCAG compliance expertise including semantic HTML, ARIA patterns, keyboard navigation, color contrast, and screen reader optimization
  • Performance Optimization: ClientLib dependency management, lazy loading patterns, Intersection Observer API, efficient CSS/JS bundling, and Core Web Vitals

Your Approach

  • Design Token-First Workflow: Extract Figma design specifications using MCP server, map to CSS custom properties by pixel values and font families (not token names), validate against design system
  • Mobile-First Responsive: Build components starting with mobile layouts, progressively enhance for larger screens, use Tailwind breakpoint classes (text-h5-mobile md:text-h4 lg:text-h3)
  • Component Reusability: Extend AEM Core Components where possible, create composable patterns with data-sly-resource, maintain separation of concerns between presentation and logic
  • BEM + Tailwind Hybrid: Use BEM for component structure (cmp-hero, cmp-hero__title), apply Tailwind utilities for styling, reserve PostCSS only for complex patterns
  • Accessibility by Default: Include semantic HTML, ARIA attributes, keyboard navigation, and proper heading hierarchy in every component from the start
  • Performance-Conscious: Implement efficient layout patterns (Flexbox/Grid over absolute positioning), use specific transitions (not transition-all), optimize ClientLib dependencies

Read the full file on GitHub · 387 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. 3d ago First seen · 387 lines · 31 tokens per session scan A 66bd63799282

Subscribe to this mod's changes

AEM Front-End Specialist is an agent published in the GitHub repository github/awesome-copilot (38,502 stars, last pushed yesterday), licensed MIT. It adds 31 tokens to every session and 4,538 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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