nuxt

A Nuxt integration for running API imitations inside a Nuxt app on the same website address. Nuxt is a framework for building Vue web applications.

In plain words
What is it for?
Use it to embed GitHub or Google emulators, create catch-all server routes, seed test data, and configure persistence in a Nuxt app.
Why use it?
It makes local service behavior available in preview deployments, including OAuth callbacks whose addresses may change between deployments.

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/vercel-labs/emulate/nuxt
Any agent
npx skills add vercel-labs/emulate --skill nuxt
Clone the repo
git clone --depth 1 https://github.com/vercel-labs/emulate

Made for: Claude Code, Codex.

Per session 121 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,547 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00121 $0.01547
Opus 5 $0.00060 $0.00773
Sonnet 5 $0.00024 $0.00309
Haiku 4.5 $0.00012 $0.00155

Measured today against content hash 3e5e04437f7c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

nuxt 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 today.

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/nuxt/SKILL.md · 176 lines

How it starts

The opening of the file, as written. The whole thing — 176 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Nuxt Integration

The @emulators/adapter-nuxt package embeds emulators directly into a Nuxt app, running them on the same origin. This is useful for preview deployments where OAuth callback URLs change with every deployment.

Install

npm install @emulators/adapter-nuxt @emulators/github @emulators/google

Only install the emulators you need. Each @emulators/* package is published independently, keeping server bundles small.

Server Route

Create a named catch-all route that serves emulator traffic:

// server/routes/emulate/[...path].ts
import { createEmulateHandler } from '@emulators/adapter-nuxt'
import * as github from '@emulators/github'
import * as google from '@emulators/google'

export default defineEventHandler(createEmulateHandler({
  services: {
    github: {
      emulator: github,
      seed: {
        users: [{ login: 'octocat', name: 'The Octocat' }],
        repos: [{ owner: 'octocat', name: 'hello-world', auto_init: true }],
      },
    },
    google: {
      emulator: google,
      seed: {
        users: [{ email: '[email protected]', name: 'Test User' }],
      },
    },
  },
}))

This creates these routes:

  • /emulate/github/** serves the GitHub emulator
  • /emulate/google/** serves the Google emulator

GitHub installation-token metadata is available server-side at /emulate/github/_emulate/installation-tokens.

Nuxt Config

Emulator UI pages use bundled fonts. Wrap your Nuxt config so Nitro traces the core package assets into production builds:

// nuxt.config.ts
import { withEmulate } from '@emulators/adapter-nuxt'

export default defineNuxtConfig(withEmulate({
  // your normal Nuxt config
}))

OAuth Configuration

Point your OAuth provider at the emulator paths on the same origin:

const baseUrl = process.env.NUXT_PUBLIC_SITE_URL ?? 'http://localhost:3000'

export const githubOAuth = {
  clientId: 'any-value',
  clientSecret: 'any-value',
  authorizationUrl: `${baseUrl}/emulate/github/login/oauth/authorize`,
  tokenUrl: `${baseUrl}/emulate/github/login/oauth/access_token`,
  userInfoUrl: `${baseUrl}/emulate/github/user`,
}

Read the full file on GitHub · 176 lines

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. today Changed · +2 lines 3e5e04437f7c
  2. 3d ago First seen · 174 lines · 121 tokens per session scan A 820e38732e49

Subscribe to this mod's changes

nuxt is a skill published in the GitHub repository vercel-labs/emulate (1,621 stars, last pushed yesterday), licensed Apache-2.0. It adds 121 tokens to every session and 1,547 once invoked, about $0.0006 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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