senior-frontend

senior-frontend is a skill for Claude Code, Codex from LuizEduPP/Rememb. It costs 52 tokens per session (2,855 once invoked), scanned A, original, MIT.

A frontend development guide for React and Next.js, tools for building web interfaces, with TypeScript for typed JavaScript and Tailwind CSS for utility-based styling.

In plain words
What is it for?
Creating React or Next.js projects, adding features such as authentication, APIs, forms, testing, or Storybook, analyzing bundle sizes, and reviewing interface code.
Why use it?
It gives a consistent way to start projects, build components, check frontend code, improve Next.js performance, and address accessibility and testing.

Skill for Claude CodeCodex

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 skills/luizedupp/rememb/senior-frontend
Any agent
npx skills add LuizEduPP/Rememb --skill senior-frontend
Clone the repo
git clone --depth 1 https://github.com/LuizEduPP/Rememb

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/luizedupp/rememb/senior-frontend.svg)](https://agentmods.dev/skills/luizedupp/rememb/senior-frontend)
Your own site
<a href="https://agentmods.dev/skills/luizedupp/rememb/senior-frontend"><img src="https://agentmods.dev/badge/skills/luizedupp/rememb/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 2,855 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 5.1 $0.00052 $0.02855
Opus 5 $0.00026 $0.01427
Sonnet 5 $0.00010 $0.00571
Haiku 4.5 $0.00005 $0.00285

Measured 5d ago against content hash 8aaf08535ac2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, 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 5d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/bundle_analyzer.py, scripts/component_generator.py, scripts/frontend_scaffolder.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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));
src/rememb_skills/senior-frontend/SKILL.md · 498 lines

How it starts

The opening of the file, as written. The whole thing — 498 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 · 498 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 498 lines · 52 tokens per session scan A 8aaf08535ac2

Subscribe to this mod's changes

senior-frontend is a skill published in the GitHub repository LuizEduPP/Rememb (4 stars, last pushed 1mo ago), licensed MIT. It adds 52 tokens to every session and 2,855 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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