senior-frontend

senior-frontend is a skill for Claude Code, Codex from eimis1990/inzone. It costs 52 tokens per session (2,738 once invoked), scanned A, a copy of senior-frontend, MIT.

A frontend development skill for React and Next.js websites and applications, using TypeScript and Tailwind CSS. It includes guidance and scripts for creating projects, building components, checking performance, accessibility, and tests.

In plain words
What is it for?
Use it to scaffold React or Next.js projects, generate components, analyze bundle size, apply React and Next.js patterns, improve accessibility, and support frontend testing.
Why use it?
Starting and reviewing frontend projects involves many setup choices and recurring quality checks. It helps handle that work consistently instead of assembling every configuration and review process by hand.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python scripts/frontend_scaffolder.py my-app --template nextjs.

Good fit Use it to scaffold React or Next.js projects, generate components, analyze bundle size, apply React and Next.js patterns, improve accessibility, and support frontend testing.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/eimis1990/inzone
agentmods
npx agentmods add skills/eimis1990/inzone/senior-frontend

Made for: Claude Code, Codex.

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 senior-frontend

README.md
[![agentmods](https://agentmods.dev/badge/skills/eimis1990/inzone/senior-frontend.svg)](https://agentmods.dev/skills/eimis1990/inzone/senior-frontend)
Your own site
<a href="https://agentmods.dev/skills/eimis1990/inzone/senior-frontend"><img src="https://agentmods.dev/badge/skills/eimis1990/inzone/senior-frontend.svg" alt="Measured on agentmods" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,738 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod 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 $0.00052 $0.02738
Opus 5 $0.00026 $0.01369
Sonnet 5 $0.00010 $0.00548
Haiku 4.5 $0.00005 $0.00274

Measured 8d ago against content hash d1da68519c99, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

senior-frontend scanned grade A with 1 finding 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

fetch(url).then(r => r.json()).then(setData).finally(() => setLoading(false));
Origin

This is a copy

97% identical to senior-frontend — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

bundled-resources/skills/senior-frontend/SKILL.md · 477 lines

How it starts

The opening of the file, as written. The whole thing — 477 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Senior Frontend

Frontend development patterns, performance optimization, and automation tools for React/Next.js applications.

Table of Contents


Project Scaffolding

Generate a new Next.js or React project with TypeScript, Tailwind CSS, and best practice configurations.

Workflow: Create New Frontend Project

  1. Run the scaffolder with your project name and template:

    python scripts/frontend_scaffolder.py my-app --template nextjs
    
  2. Add optional features (auth, api, forms, testing, storybook):

    python scripts/frontend_scaffolder.py dashboard --template nextjs --features auth,api
    
  3. Navigate to the project and install dependencies:

    cd my-app && npm install
    
  4. Start the development server:

    npm run dev
    

Scaffolder Options

Option Description
--template nextjs Next.js 14+ with App Router and Server Components
--template react React + Vite with TypeScript
--features auth Add NextAuth.js authentication
--features api Add React Query + API client
--features forms Add React Hook Form + Zod validation
--features testing Add Vitest + Testing Library
--dry-run Preview files without creating them

Generated Structure (Next.js)

my-app/
├── app/
│   ├── layout.tsx        # Root layout with fonts
│   ├── page.tsx          # Home page
│   ├── globals.css       # Tailwind + CSS variables
│   └── api/health/route.ts
├── components/
│   ├── ui/               # Button, Input, Card
│   └── layout/           # Header, Footer, Sidebar
├── hooks/                # useDebounce, useLocalStorage
├── lib/                  # utils (cn), constants
├── types/                # TypeScript interfaces
├── tailwind.config.ts
├── next.config.js
└── package.json

Read the full file on GitHub · 477 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. 8d ago First seen · 477 lines · 52 tokens per session scan A d1da68519c99

Subscribe to this mod's changes

senior-frontend is a skill published in the GitHub repository eimis1990/inzone (5 stars, last pushed 2mo ago), licensed MIT. It adds 52 tokens to every session and 2,738 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 97% identical to senior-frontend, differing in 13 lines, and is treated as a copy.

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