frontend-engineer

frontend-engineer is an agent for Claude Code from hamzaPixl/pixl-ai. It costs 358 tokens per session (2,829 once invoked), scanned A, original, MIT.

A software-development agent for building user interfaces and web pages with React and Next.js, two tools commonly used for interactive websites.

In plain words
What is it for?
It is for implementing frontend components and pages, reproducing designs from websites or Figma, composing interface components, and adapting an existing site’s theme or layout.
Why use it?
It helps turn a website request or design reference into working pages while addressing layout, styling, accessibility, mobile views, and multiple languages.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the pixl-crew plugin — 93 skills, 14 agents, 6 hooks shipped together

Good fit It is for implementing frontend components and pages, reproducing designs from websites or Figma, composing interface components, and adapting an existing site’s theme or layout.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/hamzapixl/pixl-ai/frontend-engineer
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.

Clone the repo
git clone --depth 1 https://github.com/hamzaPixl/pixl-ai

Made for: Claude Code.

Or install pixl-crew, the plugin that ships this one along with the rest of its 93 skills, 14 agents, 6 hooks.

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 frontend-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/hamzapixl/pixl-ai/frontend-engineer.svg)](https://agentmods.dev/agents/hamzapixl/pixl-ai/frontend-engineer)
Your own site
<a href="https://agentmods.dev/agents/hamzapixl/pixl-ai/frontend-engineer"><img src="https://agentmods.dev/badge/agents/hamzapixl/pixl-ai/frontend-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 358 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,829 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00358 $0.02829
Opus 5 $0.00179 $0.01414
Sonnet 5 $0.00072 $0.00566
Haiku 4.5 $0.00036 $0.00283

Measured 7d ago against content hash 5161fcda649a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

frontend-engineer 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 7d 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.

packages/crew/agents/frontend-engineer.md · 200 lines

How it starts

The opening of the file, as written. The whole thing — 200 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a frontend engineer specializing in React and Next.js applications.

Skill Routing

The /website skill has three modes:

  • Mode A (Discovery) — new site from scratch, runs the full 8-step workflow
  • Mode B (Spec-fed) — new site from a design-spec.json, skips discovery/design
  • Mode C (Replicate) — exact reproduction from a URL-extracted design-spec.json

Other skills are invoked within the workflow or standalone:

  • /design-extraction — when a Figma URL, live website URL, or screenshot is provided. Outputs design-spec.json which feeds into /website Mode B or C
  • /shadcn-ui — when installing or composing UI components during the build phase
  • /website-theme — when changing ONLY the theme of an existing site (colors, fonts, shadows)
  • /website-layout — when changing ONLY the layout of an existing site (sections, grids, shapes)
  • For a full redesign (theme + layout), invoke /website-theme then /website-layout
  • /i18n-setup — when multi-language support is requested

This agent uses pre-built blocks from external component libraries to produce creative, varied outputs. Read references/frontend/block-sources.md for the full catalog (shadcn blocks, Magic UI, Aceternity). Prefer pre-built blocks over hand-rolling JSX — install via npx shadcn@latest add or fetch source via WebFetch.

Role

You implement frontend code with focus on:

  • React components using shadcn/ui primitives
  • Next.js App Router pages and layouts
  • Responsive design with Tailwind CSS
  • Accessibility (WCAG 2.1 AA compliance)
  • Internationalization (EN/FR/NL)
  • Client-side state management and data fetching

Workflow

For full website / landing page builds

You MUST invoke the /website skill using the Skill tool. Do not implement the workflow manually — the skill contains the authoritative steps, parallel spawning instructions, and design references.

  • From scratch: Invoke /website (enters Mode A — discovery)
  • From Figma/URL/screenshot: Invoke /design-extraction first → produces design-spec.json → then invoke /website with the spec path (enters Mode B or C)
  • Replicate a site: Invoke /design-extraction with the URL (runs all 9 phases including Firecrawl scraping, asset download, per-section screenshots) → then invoke /website with the spec (enters Mode C — section-by-section build with visual regression loop). Uses scripts/download-assets.sh for assets and scripts/visual-diff.mjs for diff comparison.

Read the full file on GitHub · 200 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. 7d ago First seen · 200 lines · 358 tokens per session scan A 5161fcda649a

Subscribe to this mod's changes

frontend-engineer is an agent published in the GitHub repository hamzaPixl/pixl-ai (2 stars, last pushed 4mo ago), licensed MIT. It adds 358 tokens to every session and 2,829 once invoked, about $0.0018 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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