AI tools for “next.js”

Audit whether a Next.js + Sanity site uses Sanity efficiently and what it will cost. Runs three read-only auditors in parallel (`sanity-query-auditor` for GROQ over-fetching, query size and Sanity reads per route;…

Set up a new project from this Next.js + Sanity starter step by step, from `sanity init --template` or a plain `git clone` to a running site and go-live. Checks what is already done, then walks through Node and pnpm,…

Migrate Cloudflare Sandbox apps from stable @cloudflare/sandbox to @cloudflare/sandbox@next (SDK 1.0 preview). Use sandbox-next for apps already on the preview.

Build or maintain Cloudflare Sandbox apps on @cloudflare/sandbox@next (SDK 1.0 preview). Use sandbox-migrate-to-next when porting a stable app.

Build, migrate, and deploy Next.js apps on Cloudflare Workers with vinext. Use when starting a Next.js project on Cloudflare, moving an existing app to Workers, choosing between vinext and OpenNext, or setting up vinext…

Deep single-household analysis naming the one highest-value next action and proving why — unused tax space, a closing Roth conversion window, RMD and IRMAA sequencing, Social Security and survivor math, irreversible…

AI developer tools, vibe coding, macOS apps, and open-source projects. Available for your next AI project. Egor Fedorov AI Developer & Vibe Coder building tools at the edge of human-AI collaboration Available for AI…

Decides what to make next — turns the brand, the product, your own running ads and competitor research into the concepts worth testing next. Each concept is a full description of one ad, the buyer it targets, the bet it…

Vercel's React and Next.js performance rules (70 rules in 8 categories ordered by impact - eliminating waterfalls, bundle size, server-side performance, client-side data fetching, re-renders, rendering performance,…

…app from a one-sentence idea and build it live — a running Next.js + shadcn app with `convex dev` + `next dev` and error watchers already armed, going from idea to running app in under a minute…

Recommend the next best action on a deal or relationship, grounded in the current conversation state. Uses conversation_intelligence as the primary source, with account_research for deal context. Identify the account or…

Deploys and manages full-stack web applications (Next.js, Angular) with Server-Side Rendering (SSR) using Firebase App Hosting. Use when deploying Next.js/Angular apps, configuring apphosting.yaml or firebase.json…

…preview channels. Don't use for Firebase App Hosting (Next.js/SSR), Auth, Firestore queries/rules, Data Connect, or…

…and SSR integrations (supabase-js, @supabase/ssr) in Next.js, React, SvelteKit, Astro, Remix; auth issues (login, logout, sessions, JWT, cookies, getSession, getUser, getClaims, RLS); Supabase CLI or MCP server;…

Codex Pet generator on RunComfy. Build a Codex-compatible Codex Pet spritesheet.webp + pet.json from a single reference image, drop it into `${CODEX_HOME:-$HOME/.codex}/pets/<name>/` and Codex picks it up as a custom…

Extend or continue an existing video clip on RunComfy via the `runcomfy` CLI. Routes to Google Veo 3-1's `extend-video` and `fast/extend-video` endpoints — pick the source video plus a prompt describing what should…

…game site, as static HTML/CSS or inside an existing React, Next.js, Vue, Svelte, Astro or Tailwind project, or when the user says a page looks generic, templated or…

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on…

…navigation animations, or integrate view transitions in Next.js. Also use when the user mentions view transitions, `startViewTransition`, `ViewTransition`, transition types, or asks about animating between UI states…

…performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan results first; investigate only metric-backed…