frontend-engineering

frontend-engineering is a plugin for Claude Code from eugenelim/agent-ready-repo. Its manifest loads nothing; the 9 skills, 1 agent it bundles cost 881 tokens per session together, scanned A, original, Apache-2.0.

A frontend development guide for building HTML, CSS, and JavaScript interfaces with shared design tokens, accessibility checks, and measured performance.

In plain words
What is it for?
It is for implementing web interfaces, checking WCAG 2.2 AA accessibility, measuring Core Web Vitals, and reviewing changes for regressions.
Why use it?
It helps catch accessibility and speed problems that are easy to miss when a web page only looks correct.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit It is for implementing web interfaces, checking WCAG 2.2 AA accessibility, measuring Core Web Vitals, and reviewing changes for regressions.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add eugenelim/agent-ready-repo/plugin install frontend-engineering
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/eugenelim/agent-ready-repo

Made for: Claude Code.

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-engineering

README.md
[![agentmods](https://agentmods.dev/badge/plugins/eugenelim/agent-ready-repo/frontend-engineering/github.svg)](https://agentmods.dev/plugins/eugenelim/agent-ready-repo/frontend-engineering)
Your own site
<a href="https://agentmods.dev/plugins/eugenelim/agent-ready-repo/frontend-engineering"><img src="https://agentmods.dev/badge/plugins/eugenelim/agent-ready-repo/frontend-engineering/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 frontend-engineering

Your own site · 80×15
<a href="https://agentmods.dev/plugins/eugenelim/agent-ready-repo/frontend-engineering"><img src="https://agentmods.dev/badge/plugins/eugenelim/agent-ready-repo/frontend-engineering.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 9 skills, 1 agent cost 881 tokens a session between them.
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.
Security

Grade A, and why

frontend-engineering 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 4d 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.

packs/frontend-engineering/.claude-plugin/plugin.json · 6 lines

What it actually says

{
  "name": "frontend-engineering",
  "version": "0.2.2",
  "description": "Build the web surface, then prove it holds up. HTML, CSS, and JS with a real token system, WCAG 2.2 AA, and Core Web Vitals measured rather than asserted. A reviewer reads the diff for the regressions those three tend to hide."
}
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. 4d ago Changed 81ac4a3c4092
  2. 5d ago First seen · 6 lines scan A 5270c58c4f9f

Subscribe to this mod's changes

frontend-engineering is a plugin published in the GitHub repository eugenelim/agent-ready-repo (20 stars, last pushed today), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-09-04.