Nuxt Production
secondsky/claude-skills
| Nuxt 4 production optimization: hydration, performance, testing with Vitest, deployment to Cloudflare/Vercel/Netlify, and v4 migration.
Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData.
Install Nuxt4 Patterns
$ npx skills add affaan-m/ECC --skill nuxt4-patterns -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install affaan-m/ECC nuxt4-patterns --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nuxt4-patterns .claude/skills/nuxt4-patterns && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "nuxt4-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/skills/nuxt4-patterns into .claude/skills/nuxt4-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nuxt4-patterns", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/affaan-m/ECC/tree/main/skills/nuxt4-patternsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add affaan-m/ECC --skill nuxt4-patterns -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install affaan-m/ECC nuxt4-patterns --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/nuxt4-patterns .agents/skills/nuxt4-patterns && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "nuxt4-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/skills/nuxt4-patterns into .agents/skills/nuxt4-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nuxt4-patterns", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add affaan-m/ECC --skill nuxt4-patterns -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install affaan-m/ECC nuxt4-patterns --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/nuxt4-patterns .cursor/skills/nuxt4-patterns && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "nuxt4-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/skills/nuxt4-patterns into .cursor/skills/nuxt4-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nuxt4-patterns", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/affaan-m/ECC.git --path skills/nuxt4-patterns--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add affaan-m/ECC --skill nuxt4-patterns -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install affaan-m/ECC nuxt4-patterns --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/nuxt4-patterns .gemini/skills/nuxt4-patterns && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "nuxt4-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/skills/nuxt4-patterns into .gemini/skills/nuxt4-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nuxt4-patterns", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install affaan-m/ECC nuxt4-patternsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add affaan-m/ECC --skill nuxt4-patterns -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/nuxt4-patterns .github/skills/nuxt4-patterns && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "nuxt4-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/skills/nuxt4-patterns into .github/skills/nuxt4-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nuxt4-patterns", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add affaan-m/ECC --skill nuxt4-patterns -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install affaan-m/ECC nuxt4-patterns --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/nuxt4-patterns .opencode/skills/nuxt4-patterns && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "nuxt4-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/skills/nuxt4-patterns into .opencode/skills/nuxt4-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nuxt4-patterns", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
nuxt4-patterns- GitHub stars
- 276k
- Used in
- 3 other repos
- Token cost
- ~1.2k tokens
- SKILL.md length
- 510 words
- Files
- 1
- Skills in repo
- 673
- Repo updated
- First seen
- Licence
- MIT
At a glance
Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData.
- Reviewing a Nuxt 4 app
- SKILL.md covers When to Activate, Hydration Safety, Data Fetching and Route Rules, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Debugging hydration mismatches and SSR-safe data fetching
What it does
Nuxt4 Patterns is an agent skill from affaan-m/ECC. Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData. Use when building or reviewing a Nuxt 4 app, or debugging hydration mismatches and SSR-safe data fetching.
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Web performance. It works with Nuxt. The repository describes itself as: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. The licence is MIT.
When your agent uses it
- Reviewing a Nuxt 4 app
- Debugging hydration mismatches and SSR-safe data fetching
Example prompts
- “/nuxt4-patterns”
What it can do on your machine
Read from SKILL.md and the folder at commit ef648e0. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript and vue).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Nuxt4 Patterns loads about 1.2k tokens when it runs. Until then it costs about 66 tokens; SKILL.md has 510 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from affaan-m/ECC at commit ef648e0, republished under its MIT licence (© affaan-m). 510 words, ~1,191 tokens.
Download SKILL.mdSave it as
.claude/skills/nuxt4-patterns/SKILL.md (or your agent's skills folder).- name
- nuxt4-patterns
- description
- Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData. Use when building or reviewing a Nuxt 4 app, or debugging hydration mismatches and SSR-safe data fetching.
- metadata.origin
- ECC
Nuxt 4 Patterns
Use when building or debugging Nuxt 4 apps with SSR, hybrid rendering, route rules, or page-level data fetching.
When to Activate
- Hydration mismatches between server HTML and client state
- Route-level rendering decisions such as prerender, SWR, ISR, or client-only sections
- Performance work around lazy loading, lazy hydration, or payload size
- Page or component data fetching with
useFetch,useAsyncData, or$fetch - Nuxt routing issues tied to route params, middleware, or SSR/client differences
Hydration Safety
- Keep the first render deterministic. Do not put
Date.now(),Math.random(), browser-only APIs, or storage reads directly into SSR-rendered template state. - Move browser-only logic behind
onMounted(),import.meta.client,ClientOnly, or a.client.vuecomponent when the server cannot produce the same markup. - Use Nuxt's
useRoute()composable, not the one fromvue-router. - Do not use
route.fullPathto drive SSR-rendered markup. URL fragments are client-only, which can create hydration mismatches. - Treat
ssr: falseas an escape hatch for truly browser-only areas, not a default fix for mismatches.
Data Fetching
- Prefer
await useFetch()for SSR-safe API reads in pages and components. It forwards server-fetched data into the Nuxt payload and avoids a second fetch on hydration. - Use
useAsyncData()when the fetcher is not a simple$fetch()call, when you need a custom key, or when you are composing multiple async sources. - Give
useAsyncData()a stable key for cache reuse and predictable refresh behavior. - Keep
useAsyncData()handlers side-effect free. They can run during SSR and hydration. - Use
$fetch()for user-triggered writes or client-only actions, not top-level page data that should be hydrated from SSR. - Use
lazy: true,useLazyFetch(), oruseLazyAsyncData()for non-critical data that should not block navigation. Handlestatus === 'pending'in the UI. - Use
server: falseonly for data that is not needed for SEO or the first paint. - Trim payload size with
pickand prefer shallower payloads when deep reactivity is unnecessary.
const route = useRoute()
const { data: article, status, error, refresh } = await useAsyncData(
() => `article:${route.params.slug}`,
() => $fetch(`/api/articles/${route.params.slug}`),
)
const { data: comments } = await useFetch(`/api/articles/${route.params.slug}/comments`, {
lazy: true,
server: false,
})Show full SKILL.md (207 more words)Show less
Route Rules
Prefer routeRules in nuxt.config.ts for rendering and caching strategy:
export default defineNuxtConfig({
routeRules: {
'/': { prerender: true },
'/products/**': { swr: 3600 },
'/blog/**': { isr: true },
'/admin/**': { ssr: false },
'/api/**': { cache: { maxAge: 60 * 60 } },
},
})prerender: static HTML at build timeswr: serve cached content and revalidate in the backgroundisr: incremental static regeneration on supported platformsssr: false: client-rendered routecacheorredirect: Nitro-level response behavior
Pick route rules per route group, not globally. Marketing pages, catalogs, dashboards, and APIs usually need different strategies.
Lazy Loading and Performance
- Nuxt already code-splits pages by route. Keep route boundaries meaningful before micro-optimizing component splits.
- Use the
Lazyprefix to dynamically import non-critical components. - Conditionally render lazy components with
v-ifso the chunk is not loaded until the UI actually needs it. - Use lazy hydration for below-the-fold or non-critical interactive UI.
<template>
<LazyRecommendations v-if="showRecommendations" />
<LazyProductGallery hydrate-on-visible />
</template>- For custom strategies, use
defineLazyHydrationComponent()with a visibility or idle strategy. - Nuxt lazy hydration works on single-file components. Passing new props to a lazily hydrated component will trigger hydration immediately.
- Use
NuxtLinkfor internal navigation so Nuxt can prefetch route components and generated payloads.
Review Checklist
- First SSR render and hydrated client render produce the same markup
- Page data uses
useFetchoruseAsyncData, not top-level$fetch - Non-critical data is lazy and has explicit loading UI
- Route rules match the page's SEO and freshness requirements
- Heavy interactive islands are lazy-loaded or lazily hydrated
© affaan-m, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/nuxt4-patterns of affaan-m/ECC.
Open the folder on GitHubat commit ef648e0
Used in 3 other repositories
We found 9 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 other GitHub owners. This page covers the copy in affaan-m/ECC, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Nuxt4 Patterns next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Nuxt4 Patterns this skillaffaan-m/ECC | 276k | 3 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Nuxt Productionsecondsky/claude-skills | 227 | — | ~3.3k | Automated safety check: Notes | MIT | |
| Nuxt Productionsecondsky/claude-skills | 227 | — | ~2.7k | Automated safety check: Pass | MIT | |
| Vercel Optimize Auditvercel-labs/agent-skills | 32k | 8 repos | ~4.3k | Automated safety check: Pass | None | |
| Frontend Code Reviewlanggenius/dify | 158k | — | ~938 | Automated safety check: Pass | Custom licence | |
| Electron DevTools Trace Analysiskeybase/client | 9.3k | — | ~809 | Automated safety check: Pass | BSD-3-Clause |
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Runs a metrics-first audit of a deployed Vercel project, gating investigations on real signals to produce ranked, citation-backed cost and performance recommendations.
Frontend Code Review
langgenius/dify
Reviews frontend changes under `web/` or `packages/dify-ui/` for concrete defects and broken project contracts, using routed rule packs and a severity scale for findings.
Electron DevTools Trace Analysis
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Analyzes Chrome or Electron DevTools Performance trace exports with Python scripts to find where render time actually goes, without opening DevTools.
- Official
Runtime Debug
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Debug and verification workflow for runtime-bundle and module-resolution regressions.
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Related
Works with
Categories
Questions about Nuxt4 Patterns
What does Nuxt4 Patterns do?
Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData. Nuxt4 Patterns is an agent skill from affaan-m/ECC. Nuxt 4 app patterns for hydration safety, performance, route rules, lazy loading, and SSR-safe data fetching with useFetch and useAsyncData.
When should I use Nuxt4 Patterns?
Nuxt4 Patterns fits situations like: reviewing a Nuxt 4 app; debugging hydration mismatches and SSR-safe data fetching.
How do I install Nuxt4 Patterns in Claude Code?
Run `npx skills add affaan-m/ECC --skill nuxt4-patterns -a claude-code`. Or copy the skill folder (skills/nuxt4-patterns in affaan-m/ECC) into .claude/skills/nuxt4-patterns in your project. Claude Code loads it when a task matches its description.
How do I install Nuxt4 Patterns in Codex?
Run `npx skills add affaan-m/ECC --skill nuxt4-patterns -a codex`. Or copy the skill folder (skills/nuxt4-patterns in affaan-m/ECC) into .agents/skills/nuxt4-patterns in your project. Codex loads it when a task matches its description.
Can I use Nuxt4 Patterns in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add affaan-m/ECC --skill nuxt4-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nuxt4-patterns, .gemini/skills/nuxt4-patterns, .github/skills/nuxt4-patterns and .opencode/skills/nuxt4-patterns in your project.
What does Nuxt4 Patterns need to run?
SKILL.md names no scripts, command-line tools or credentials: Nuxt4 Patterns is instructions for the agent only.
Does Nuxt4 Patterns access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Nuxt4 Patterns safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Nuxt4 Patterns use?
Nuxt4 Patterns is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Nuxt4 Patterns use?
About 1.2k tokens (SKILL.md is roughly 4.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Nuxt4 Patterns?
Skills that share tags, products or a category with Nuxt4 Patterns: Nuxt Production (secondsky/claude-skills, 227 stars), Nuxt Production (secondsky/claude-skills, 227 stars), Vercel Optimize Audit (vercel-labs/agent-skills, 32k stars) and Frontend Code Review (langgenius/dify, 158k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Nuxt4 Patterns?
affaan-m (a GitHub user) maintains it in affaan-m/ECC, which has 275,546 GitHub stars. The repository holds 673 skills in this directory. The repository was last updated on October 5, 2026.
Source: affaan-m/ECC on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.