MCPInstall

next-best-practices

by connoradsCode Quality & Workflow

Next.js best practices - file conventions, RSC boundaries, data patterns, async APIs, metadata, error handling, route handlers, image/font optimization, bundling

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/connorads/dotfiles --skill next-best-practices
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads next-best-practices automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Next.js Best Practices

Apply these rules when writing or reviewing Next.js code.

File Conventions

See file-conventions.md for:

  • Project structure and special files
  • Route segments (dynamic, catch-all, groups)
  • Parallel and intercepting routes
  • Middleware rename in v16 (middleware → proxy)

RSC Boundaries

Detect invalid React Server Component patterns.

See rsc-boundaries.md for:

  • Async client component detection (invalid)
  • Non-serializable props detection
  • Server Action exceptions

Async Patterns

Next.js 15+ async API changes.

See async-patterns.md for:

  • Async params and searchParams
  • Async cookies() and headers()
  • Migration codemod

Runtime Selection

See runtime-selection.md for:

  • Default to Node.js runtime
  • When Edge runtime is appropriate

Directives

See directives.md for:

  • 'use client', 'use server' (React)
  • 'use cache' (Next.js)

Functions

See functions.md for:

  • Navigation hooks: useRouter, usePathname, useSearchParams, useParams
  • Server functions: cookies, headers, draftMode, after
  • Generate functions: generateStaticParams, generateMetadata

Error Handling

See error-handling.md for:

  • error.tsx, global-error.tsx, not-found.tsx
  • redirect, permanentRedirect, notFound
  • forbidden, unauthorized (auth errors)
  • unstable_rethrow for catch blocks

Data Patterns

See data-patterns.md for:

  • Server Components vs Server Actions vs Route Handlers
  • Avoiding data waterfalls (Promise.all, Suspense, preload)
  • Client component data fetching

Route Handlers

See route-handlers.md for:

  • route.ts basics
  • GET handler conflicts with page.tsx
  • Environment behavior (no React DOM)
  • When to use vs Server Actions

Metadata & OG Images

See metadata.md for:

  • Static and dynamic metadata
  • generateMetadata function
  • OG image generation with next/og
  • File-based metadata conventions

Image Optimization

See image.md for:

  • Always use next/image over <img>
  • Remote images configuration
  • Responsive sizes attribute
  • Blur placeholders
  • Priority loading for LCP

Font Optimization

See font.md for:

  • next/font setup
  • Google Fonts, local fonts
  • Tailwind CSS integration
  • Preloading subsets

Bundling

See bundling.md for:

  • Server-incompatible packages
  • CSS imports (not link tags)
  • Polyfills (already included)
  • ESM/CommonJS issues
  • Bundle analysis

Scripts

See scripts.md for:

  • next/script vs native script tags
  • Inline scripts need id
  • Loading strategies
  • Google Analytics with @next/third-parties

Hydration Errors

See hydration-error.md for:

  • Common causes (browser APIs, dates, invalid HTML)
  • Debugging with error overlay
  • Fixes for each cause

Suspense Boundaries

See suspense-boundaries.md for:

  • CSR bailout with useSearchParams and usePathname
  • Which hooks require Suspense boundaries

Parallel & Intercepting Routes

See parallel-routes.md for:

  • Modal patterns with @slot and (.) interceptors
  • default.tsx for fallbacks
  • Closing modals correctly with router.back()

Self-Hosting

See self-hosting.md for:

  • output: 'standalone' for Docker
  • Cache handlers for multi-instance ISR
  • What works vs needs extra setup

Debug Tricks

See debug-tricks.md for:

  • MCP endpoint for AI-assisted debugging
  • Rebuild specific routes with --debug-build-paths

FAQ

What does the next-best-practices skill do?

Next.js best practices - file conventions, RSC boundaries, data patterns, async APIs, metadata, error handling, route handlers, image/font optimization, bundling

How do I install next-best-practices?

Run npx skills add https://github.com/connorads/dotfiles --skill next-best-practices in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/next-best-practices/ (personal) or .claude/skills/next-best-practices/ (project).

Which AI agents can use next-best-practices?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is next-best-practices safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains next-best-practices?

It is published by connorads in connorads/dotfiles. It has 66 recorded installs.

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