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Build a full-stack TanStack Start app on Cloudflare Workers from scratch — SSR, file-based routing, server functions, D1+Drizzle, better-auth, Tailwind v4+shadcn/ui.
Passed 22 of 22 test cases with the skill, and 15 of 22 without it.
and 8 more in the full report
7 fixed15 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
In a TanStack Start server function, I want to validate incoming mutation arguments with Zod. Should I use the .validator() method or .inputValidator()?
| Checked | Without skill | With skill |
|---|---|---|
| Uses inputValidator to validate server function arguments. | Missed | Passed |
The instructions your model reads when the skill loads.
Build a complete full-stack app from nothing. Claude generates every file — no template clone, no scaffold command.
Stack: TanStack Start v1 (SSR, file-based routing, server functions via Nitro) on Cloudflare Workers; React 19 + Tailwind v4 + shadcn/ui; D1 + Drizzle; better-auth (Google OAuth + email/password).
PROJECT_NAME/
├── src/
│ ├── routes/
│ │ ├── __root.tsx # Root layout (HTML shell, theme, CSS import)
│ │ ├── index.tsx # Landing / auth redirect
│ │ ├── login.tsx # Login page
│ │ ├── register.tsx # Register page
│ │ ├── _authed.tsx # Auth guard layout route
│ │ ├── _authed/
│ │ │ ├── dashboard.tsx # Dashboard with stat cards
│ │ │ ├── items.tsx # Items list table
│ │ │ ├── items.$id.tsx # Edit item
│ │ │ └── items.new.tsx # Create item
│ │ └── api/
│ │ └── auth/
│ │ └── $.ts # better-auth API catch-all
│ ├── components/
│ │ ├── ui/ # shadcn/ui components (auto-installed)
│ │ ├── app-sidebar.tsx # Navigation sidebar
│ │ ├── theme-toggle.tsx # Light/dark/system toggle
│ │ ├── user-nav.tsx # User dropdown menu
│ │ └── stat-card.tsx # Dashboard stat card
│ ├── db/
│ │ ├── schema.ts # Drizzle schema (all tables)
│ │ └── index.ts # Drizzle client factory
│ ├── lib/
│ │ ├── auth.server.ts # better-auth server config
│ │ ├── auth.client.ts # better-auth React hooks
│ │ └── utils.ts # cn() helper for shadcn/ui
│ ├── server/
│ │ └── functions.ts # Server functions (CRUD, auth checks)
test cases passed, vs 15 / 22 without
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