A guided workflow for creating or extending a Next.js web app, a React-based framework for websites, with a predefined technical foundation and selected integrations.

Use it for new project setup with Tailwind CSS, tRPC, TanStack Query, Neon or Drizzle, Vercel, optional Clerk sign-in, and selected services such as payments or email.

It turns initial project setup into a documented, checked process so the app is type-checked, tested, linted, and buildable before feature work begins.

scaffold — Skill for Claude Code by robzilla1738

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.

Any agent

npx skills add robzilla1738/roberts-skills --skill scaffold

Clone the repo

git clone --depth 1 https://github.com/robzilla1738/roberts-skills

Made for: Claude Code.

Or install scaffold, the plugin that ships this one along with the rest of its 1 skill, 1 command.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/robzilla1738/roberts-skills/scaffold/github.svg)](https://agentmods.dev/skills/robzilla1738/roberts-skills/scaffold)

Your own site

<a href="https://agentmods.dev/skills/robzilla1738/roberts-skills/scaffold"><img src="https://agentmods.dev/badge/skills/robzilla1738/roberts-skills/scaffold/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/robzilla1738/roberts-skills/scaffold"><img src="https://agentmods.dev/badge/skills/robzilla1738/roberts-skills/scaffold.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,837 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00073	$0.01837
Opus 5	$0.00036	$0.00919
Sonnet 5	$0.00015	$0.00367
Haiku 4.5	$0.00007	$0.00184

Measured 9d ago against content hash e258bb1e2b34, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

scaffold 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 9d ago.

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.

plugins/scaffold/skills/scaffold/SKILL.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Stack Scaffold

Workflow skill for greenfielding a Next.js + Tailwind v4 + tRPC + TanStack Query + Neon/Drizzle + Vercel app, with optional Clerk auth — driven by product intake so the foundation matches what you are building.

Read this hub first, run product intake, then open only the spokes for your profile.

Mission

Deliver a fully configured repo matching intake: core stack (Phases 0–8) plus every selected add-on installed and wired (Phase 9). No product business logic beyond integration demos/stubs. Phase 10 verification (typecheck, lint, test, build, smoke tests) must pass before the skill is complete.

Non-negotiables

Product intake first — ask what you are building; record scaffold profile before create-next-app. See intake-product-profiles.md.
App Router only — no Pages Router for new apps.
Package manager — default pnpm; pin Node 22.x and pnpm >=10 <11 unless intake says npm.
Environment — lib/env.ts (Zod); secrets in .env.local; committed .env.example. No raw process.env in lib/ elsewhere.
Server boundary — DB and tRPC routers are server-only; import "server-only" where appropriate.
Safe tRPC errors — AppError + Zod mapped in formatter; never leak stacks.
Clerk on Next 16 — proxy.ts + clerkMiddleware when auth is enabled.
Lazy database — getDb() must not throw at import time when DATABASE_URL is missing.
Scaffold profile in README — record profile ID, stack choices, installed add-ons, and production-habits.md checklist.
Intake add-ons are installed — when add-ons are not none, run Phase 9 (phase-integrations.md); do not leave them README-only.

When to use

Starting a SaaS dashboard, internal tool, or API-first Next app
Adding tRPC + Drizzle + Clerk to an empty Next.js repo
User invokes /scaffold

When not to use

Marketing-only → the web-marketing-landing skill
Supabase / Prisma-first → custom plan (not default spokes)
Expo / mobile-only → separate skill
macOS / non-Next → out of scope

Read the full file on GitHub · 133 lines

Files

What ships with it

17 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

9d ago First seen · 133 lines · 73 tokens per session scan A e258bb1e2b34

Subscribe to this mod's changes

scaffold is a skill published in the GitHub repository robzilla1738/roberts-skills (5 stars, last pushed 3mo ago), licensed MIT. It adds 73 tokens to every session and 1,837 once invoked, about $0.0004 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 2026-08-31.

Frontend React agent-skills ai appkit coding-assistant design-system human-interface-guidelines

material-ui-nextjs

Integrates Material UI with Next.js App and Pages routers using @mui/material-nextjs, Emotion cache providers, next/font, CSS layers with Tailwind/CSS Modules, Link component prop patterns, CSS theme variables SSR notes, and App Router useSearchParams + Suspense. Use when setting up or debugging MUI in a Next.js app.

mui/material-ui · 76 tokens

material-ui-styling

Chooses the right Material UI styling approach (sx, styled, theme overrides, global CSS) from official MUI guidance. Use when styling @mui/material components, customizing themes, overriding slots, or comparing sx vs styled.

mui/material-ui · 52 tokens

material-ui-tailwind

Integrates Material UI with Tailwind CSS v4 using cascade layers (enableCssLayer, @layer order) and documents Tailwind v3 interoperability (preflight, important, injectFirst, portals). Use when combining MUI with Tailwind utilities, slotProps className, or theme token bridges.

mui/material-ui · 67 tokens

material-ui-theming

Guides Material UI theming and design tokens (createTheme, ThemeProvider, palette, colorSchemes, cssVariables, theme.vars, dark mode, TypeScript augmentation). Use when building or extending a theme, toggling light/dark, or aligning tokens across an app.

mui/material-ui · 63 tokens

fast-typescript-check

Keep www-sacred's TypeScript fast to type-check and fast to run. Use when touching the ASCII/canvas animation components (the only real per-frame code here), tightening type-check wall-clock, or auditing a change for runtime or compiler regressions. Scoped to this repo — a React 19 / Next.js 16 component library plus…

internet-development/www-sacred · 84 tokens

port-sacred-terminal-ui-to-hostile-react-codebase

Take a sacred React component (or a sacred screen that mirrors a Simulacrum CLI surface) and graft it into a foreign React codebase that already ships its own design system, build pipeline, and CSS toolchain — without breaking the host or polluting it with sacred-specific globals.

internet-development/www-sacred · 0 tokens