What is accelint-nextjs-best-practices?

A guide for building and reviewing Next.js applications, a web framework based on React. It covers both common page routing styles and server-side features such as Server Components and Server Actions.

Use it when creating or refactoring Next.js pages, API routes, server actions, data fetching, authentication, or performance-sensitive components.

It helps avoid slow data loading, unnecessary data sent to browsers, inefficient server code, and authentication mistakes in Next.js projects.

accelint-nextjs-best-practices — Skill for Claude Code and Codex by go

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.

Any agent

npx skills add gohypergiant/agent-skills --skill accelint-nextjs-best-practices

Clone the repo

git clone --depth 1 https://github.com/gohypergiant/agent-skills

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/gohypergiant/agent-skills/accelint-nextjs-best-practices/github.svg)](https://agentmods.dev/skills/gohypergiant/agent-skills/accelint-nextjs-best-practices)

Your own site

<a href="https://agentmods.dev/skills/gohypergiant/agent-skills/accelint-nextjs-best-practices"><img src="https://agentmods.dev/badge/skills/gohypergiant/agent-skills/accelint-nextjs-best-practices/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/gohypergiant/agent-skills/accelint-nextjs-best-practices"><img src="https://agentmods.dev/badge/skills/gohypergiant/agent-skills/accelint-nextjs-best-practices.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,787 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. Third-party audits

Socket pass 20 Mar 2026
Snyk pass 20 Mar 2026
NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00085	$0.01787
Opus 5	$0.00043	$0.00894
Sonnet 5	$0.00017	$0.00357
Haiku 4.5	$0.00009	$0.00179

Measured 12d ago against content hash 3d291fe11c7f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

accelint-nextjs-best-practices 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 12d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/check-server-actions-auth.sh, scripts/detect-barrel-imports.sh, scripts/find-waterfall-chains.sh), 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.

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.

skills/accelint-nextjs-best-practices/SKILL.md · 199 lines

How it starts

The opening of the file, as written. The whole thing — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Next.js Best Practices

Comprehensive performance optimization and best practices for Next.js applications, designed for AI agents and LLMs working with Next.js code.

When to Activate This Skill

Use this skill when the task involves:

Writing Next.js Code

Creating Server Components or Client Components
Implementing Server Actions with "use server"
Writing API route handlers
Setting up data fetching in RSC (React Server Components)
Implementing Suspense boundaries
Using Next.js-specific APIs (headers(), cookies(), after())

Refactoring Next.js Code

Optimizing server-side data fetching
Reducing RSC serialization overhead
Converting sequential to parallel operations
Restructuring component composition for better performance
Migrating between Server and Client Components

Performance Optimization

Eliminating server-side waterfalls
Reducing response times in API routes and Server Actions
Minimizing data transfer at RSC boundaries
Implementing request deduplication with React.cache()
Using after() for non-blocking operations

Next.js-Specific Issues

Authentication/authorization in Server Actions
RSC serialization duplication problems
Import optimization (barrel file issues)
Server vs Client Component decision-making
Parallel data fetching patterns

Code Review

Reviewing Next.js code for performance anti-patterns
Identifying security issues in Server Actions
Checking proper Server/Client Component boundaries
Ensuring proper authentication patterns
Validating Suspense boundary placement

When NOT to Use This Skill

Do not activate for:

React-specific optimizations (use accelint-react-best-practices skill)
Build configuration (webpack, turbopack) unless Next.js-specific
General TypeScript/JavaScript questions (use accelint-ts-best-practices skill)
Deployment/hosting configuration
Testing setup (use accelint-ts-testing skill)

Example Trigger Phrases

This skill should activate when users say things like:

Read the full file on GitHub · 199 lines

Files

What ships with it

20 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.

12d ago First seen · 199 lines · 85 tokens per session scan A 3d291fe11c7f

Subscribe to this mod's changes

accelint-nextjs-best-practices is a skill published in the GitHub repository gohypergiant/agent-skills (24 stars, last pushed 2d ago), licensed Apache-2.0. It adds 85 tokens to every session and 1,787 once invoked, about $0.0004 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 2026-08-30.

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