expert-nextjs-developer

expert-nextjs-developer is an agent for Claude Code from jiamaozheng/awesome-claude-code. It costs 35 tokens per session (4,355 once invoked), scanned B, original, no licence file.

A Next.js development guide for building web applications with the App Router, Server Components, Cache Components, Turbopack, React, and TypeScript. Next.js is a web framework built around React.

In plain words
What is it for?
Use it to design or review Next.js applications, routing, server-rendered components, caching, and TypeScript code.
Why use it?
It helps developers work with current Next.js and React features while making framework and performance decisions.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to design or review Next.js applications, routing, server-rendered components, caching, and TypeScript code.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/jiamaozheng/awesome-claude-code/expert-nextjs-developer
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/jiamaozheng/awesome-claude-code

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 expert-nextjs-developer

README.md
[![agentmods](https://agentmods.dev/badge/agents/jiamaozheng/awesome-claude-code/expert-nextjs-developer/github.svg)](https://agentmods.dev/agents/jiamaozheng/awesome-claude-code/expert-nextjs-developer)
Your own site
<a href="https://agentmods.dev/agents/jiamaozheng/awesome-claude-code/expert-nextjs-developer"><img src="https://agentmods.dev/badge/agents/jiamaozheng/awesome-claude-code/expert-nextjs-developer/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 expert-nextjs-developer

Your own site · 80×15
<a href="https://agentmods.dev/agents/jiamaozheng/awesome-claude-code/expert-nextjs-developer"><img src="https://agentmods.dev/badge/agents/jiamaozheng/awesome-claude-code/expert-nextjs-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,355 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00035 $0.04355
Opus 5 $0.00017 $0.02178
Sonnet 5 $0.00007 $0.00871
Haiku 4.5 $0.00003 $0.00436

Measured 6d ago against content hash 570f2c78e22d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

expert-nextjs-developer scanned grade B 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 6d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

const res = await fetch("https://api.example.com/posts", { method: "POST",
agents/expert-nextjs-developer.md · 480 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 6d ago First seen · 480 lines · 35 tokens per session scan B 570f2c78e22d

Subscribe to this mod's changes

expert-nextjs-developer is an agent published in the GitHub repository jiamaozheng/awesome-claude-code (1 stars, last pushed yesterday), with no licence file. It adds 35 tokens to every session and 4,355 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (sends data to an external url). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other agents, from other repositories

Expert React Frontend Engineer

Expert React 19.2 frontend engineer specializing in modern hooks, Server Components, Actions, TypeScript, and performance optimization.

github/awesome-copilot · 30 tokens

Frontend Developer

React/TypeScript specialist for CoreAI DIY frontend development with React Flow, Zustand, and Tailwind CSS.

microsoft/skills · 24 tokens

migration-specialist

Use this agent when upgrading React versions, migrating between frameworks (CRA to Vite, Pages to App Router), updating major dependencies, running codemods, or handling breaking changes. This agent specializes in safe, incremental migration strategies.

PMDevSolutions/Aurelius · 50 tokens

frontend

Frontend specialist — React, TypeScript, components, hooks, context, client-side data fetching.

vukkt/token-warden · 21 tokens

frontend-developer

Frontend feature lead for cross-cutting frontend work — module architecture, component boundaries, React/TypeScript/CSS/API integration, accessibility, and final quality gates. Detects the project's framework and stack before acting. Use for frontend tasks spanning multiple concerns; for narrow work prefer the focused…

ivklgn/ai-kit · 84 tokens

react-typescript-specialist

Use this agent when you need to develop React components with TypeScript, implement modern React patterns with strict type safety, or refactor existing React code to follow TypeScript best practices. Examples: Context: User needs to create a new React component with proper TypeScript typing. user: 'I need to create a…

PacktPublishing/Agentic-Coding-with-Claude-Code · 242 tokens