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Nuxt full-stack Vue framework with SSR, auto-imports, and file-based routing. Use when working with Nuxt apps, server routes, useFetch, middleware, or hybrid rendering.

Vue 3 Composition API, script setup macros, reactivity system, and built-in components. Use when writing Vue SFCs, defineProps/defineEmits/defineModel, watchers, or using Transition/Teleport/Suspense/KeepAlive.

Use when building with Reka UI (headless Vue components) - provides component API, accessibility patterns, composition (asChild), controlled/uncontrolled state, virtualization, and styling integration. Formerly Radix Vue.

Build UIs with @nuxt/ui v4 — 125+ accessible Vue components with Tailwind CSS theming. Use when creating interfaces, customizing themes to match a brand, building forms, or composing layouts like dashboards, docs sites, and chat interfaces.

Vitest fast unit testing framework powered by Vite with Jest-compatible API. Use when writing tests, mocking, configuring coverage, or working with test filtering and fixtures.

Nuxt SEO meta-module with robots, sitemap, og-image, schema-org. Use when configuring SEO, generating sitemaps, creating OG images, or adding structured data.

Use when working with VueUse composables - track mouse position with useMouse, manage localStorage with useStorage, detect network status with useNetwork, debounce values with refDebounced, and access browser APIs reactively. Check VueUse before writing custom composables - most patterns already implemented.

Build typed, content-driven Nuxt applications with @nuxt/content. Use when working with content.config.ts, collections, queryCollection, Markdown or MDC rendering, content databases, hooks, custom sources, search, or Content v2 migrations.

Use when creating Nuxt modules: (1) Published npm modules (@nuxtjs/, nuxt-), (2) Local project modules (modules/ directory), (3) Runtime extensions (components, composables, plugins), (4) Server extensions (API routes, middleware), (5) Releasing/publishing modules to npm, (6) Setting up CI/CD workflows for modules. Provides defineNuxtModule patterns, Kit utilities, hooks, E2E testing, and release automation.

Vite build tool configuration, plugin API, SSR, and Vite 8 Rolldown migration. Use when working with Vite projects, vite.config.ts, Vite plugins, or building libraries/SSR apps with Vite.

Use when adding animations with Motion Vue (motion-v) - provides motion component API, gesture animations, scroll-linked effects, layout transitions, and composables for Vue 3/Nuxt

Use when building NuxtHub v0.10.8 applications - provides database (Drizzle ORM with sqlite/postgresql/mysql), KV storage, blob storage, and cache APIs. Covers configuration, schema definition, migrations, multi-cloud deployment (Cloudflare, Vercel), and the new hub:db, hub:kv, hub:blob virtual module imports.

Use when writing blog posts or documentation markdown files - provides writing style guide (active voice, present tense), content structure patterns, and MDC component usage. Overrides brevity rules for proper grammar. Use nuxt-content for MDC syntax, nuxt-ui for component props.

Guides authentication in Nuxt apps using @nuxtjs/better-auth. Use when installing or configuring the module, using its client or server APIs, protecting routes, refreshing sessions, or integrating Better Auth plugins.

Use when authoring TypeScript libraries or npm packages - covers project setup, package.json exports, build tooling (tsdown/unbuild), API design patterns, type inference tricks, testing, and publishing to npm. Use when bundling, configuring dual CJS/ESM output, or setting up release workflows.

Use when managing Node.js dependencies with pnpm - install packages, configure monorepo workspaces, set up pnpm catalogs, resolve dependency conflicts with overrides, patch third-party packages, and configure CI pipelines for pnpm projects

Configure and operate the self-hosted Nuxt Studio editor for Nuxt Content. Use when working with nuxt-studio installation, editor customization, OAuth or custom authentication, media, drafts, Git publishing, or production deployment.

Use when bundling TypeScript libraries - provides tsdown configuration, dual ESM/CJS output, .d.ts generation, package validation, and plugin authoring

Use when building 3D scenes with TresJS (Vue Three.js) - provides TresCanvas, composables (useTres, useLoop), Cientos helpers (OrbitControls, useGLTF, Environment), and post-processing effects

Write, rewrite, review, and organize developer-facing documentation for web software projects. Use when creating or improving README files, docs homepages, quickstarts, tutorials, how-to guides, API/reference pages, conceptual explanations, migration guides, or troubleshooting content for frontend, backend, full-stack, SDK, API, or framework-based web products. This skill applies strong information architecture, task-first page structure, clear voice, runnable examples, version and prerequisite hygiene, accessibility rules, and docs-as-code maintenance habits. Do not use it for marketing copy, legal text, or non-technical customer-support articles.

Builds and refactors Phaser 3 browser games. Use for creating a new Phaser project, adding scenes, entities, physics, UI, tilemaps, animations, input, audio, camera, or for fixing Phaser-specific bugs and performance problems.

Internationalize Nuxt applications with @nuxtjs/i18n. Use when configuring locales or browser detection, translating messages or routes, building locale switchers, handling fallbacks, lazy-loading messages, or adding locale SEO.

MUST be used for Vue.js tasks. Strongly recommends Composition API with and TypeScript as the standard approach. Covers Vue 3, SSR, Volar, vue-tsc. Load for any Vue, .vue files, Vue Router, Pinia, or Vite with Vue work. ALWAYS use Composition API unless the project explicitly requires Options API.

Pinia official Vue state management library, type-safe and extensible. Use when defining stores, working with state/getters/actions, or implementing store patterns in Vue apps.

Vue Router 4 patterns, navigation guards, route params, and route-component lifecycle interactions.

Configure and use the nuxt-users module for Nuxt. Use when adding authentication, user management, roles, password reset, database setup (SQLite/MySQL/PostgreSQL), or CLI commands (migrate, create-user). Covers nuxt.config (nuxtUsers), composables (useAuthentication, useUsers, usePublicPaths, usePasswordValidation, useNuxtUsersLocale), components (NUsersLoginForm, NUsersLogoutLink, etc.), and authorization (whitelist, permissions).

Answer questions about ArkEnv and help implement environment variable validation. Use when developers: (1) Ask about environment variable validation or typesafety, (2) Want to setup ArkEnv in a project, (3) Need to define or update schemas using ArkType or Standard Schema, (4) Are integrating with Next.js, Nuxt, Vite, Bun, or Node.js runtimes. Triggers on: 'ArkEnv', 'env validation', 'typesafe env', 'createEnv', 'env.ts', 'arkenv'.

UnoCSS instant atomic CSS engine, superset of Tailwind CSS. Use when configuring UnoCSS, writing utility rules, shortcuts, or working with presets like Wind, Icons, Attributify.

Core Regle form validation in Vue 3 — setup with useRegle, the reactive r$ object, validation properties, displaying errors, and modifiers. Use when adding or editing Regle forms, binding v-model to r$.$value, or reading $error/$errors/$invalid/$validate/$reset. For validation rules see regle-rules; for advanced patterns see regle-advanced.

Continue work from an earlier T3 Code thread by resolving its UUID, identifying the correct checkout or worktree, and producing a handoff for the normal agent.