Tanstack Router

What it does

When your agent uses it

• Defining routes with createFileRoute
• Validating search params with Zod
• Writing route loaders
• Setting up auth guards with beforeLoad

Example prompts

• “/tanstack-router”

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

1. 1Create the route file — Add a file under src/routes/ following the file-based routing convention (see below).
2. 2Define the route — Export Route from createFileRoute('/path')({...}) with component, and optionally loader, validateSearch, beforeLoad…
3. 3Validate search params — If the route reads query params, define a Zod schema and pass it as validateSearch.
4. 4Load data — Fetch data in loader, not in a component useEffect; integrate with TanStack Query via queryClient.ensureQueryData when caching…
5. 5Guard access — Add beforeLoad checks (e.g. auth) that throw redirect({ to: '/login' }) when a precondition fails.
6. 6Link to the route — Navigate with so the compiler validates params and search at every call site.
7. 7Regenerate the route tree — Ensure routeTree.gen.ts is regenerated (automatic under the Vite plugin's dev server / build) before running…

What it can do on your machine

Read from SKILL.md and the folder at commit 9718410. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Tanstack Router loads about 1.9k tokens when it runs. Until then it costs about 77 tokens; SKILL.md has 649 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~77

When it runs · the whole SKILL.md, loaded when a task matches

~1.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Mindrally/skills at commit 9718410, republished under its Apache-2.0 licence (© Mindrally). 649 words, ~1,881 tokens.

name

tanstack-router

description

Type-safe, file-based routing for React with TanStack Router. Use when defining routes with createFileRoute, validating search params with Zod, writing route loaders, setting up auth guards with beforeLoad, integrating TanStack Query into loaders, or configuring router context and preloading.

src/routes/
  __root.tsx          ← Root layout
  index.tsx           ← / route
  posts/
    index.tsx         ← /posts
    $postId.tsx       ← /posts/:postId (dynamic segment)
    _layout.tsx       ← Layout route (no path segment)
  _auth/               ← Pathless auth layout group
    dashboard.tsx

export const Route = createFileRoute('/posts/$postId')({
  loader: async ({ params }) => fetchPost(params.postId),
  component: PostComponent,
  errorComponent: ({ error }) => <ErrorBanner message={error.message} />,
  pendingComponent: () => <PostSkeleton />,
})

function PostComponent() {
  const post = Route.useLoaderData()     // type-safe
  const { postId } = Route.useParams()   // type-safe
  return <div>{post.title}</div>
}

const searchSchema = z.object({
  page: z.number().int().min(1).default(1),
  q: z.string().optional(),
})

export const Route = createFileRoute('/search')({
  validateSearch: searchSchema,
  component: SearchPage,
})

function SearchPage() {
  const { page, q } = Route.useSearch()
  const navigate = Route.useNavigate()

  return (
    <button onClick={() => navigate({ search: (prev) => ({ ...prev, page: page + 1 }) })}>
      Next page
    </button>
  )
}

<Link to="/posts/$postId" params={{ postId: '123' }}>View Post</Link>
<Link to="/search" search={{ page: 1, q: 'react' }}>Search</Link>

export const Route = createFileRoute('/posts')({
  loader: ({ context: { queryClient } }) =>
    queryClient.ensureQueryData(postsQueryOptions()),
  component: PostsPage,
})

function PostsPage() {
  const { data: posts } = useSuspenseQuery(postsQueryOptions())
  return <PostList posts={posts} />
}

// __root.tsx
interface RouterContext {
  queryClient: QueryClient
  auth: AuthState
}

export const Route = createRootRouteWithContext<RouterContext>()({
  component: RootLayout,
})

// main.tsx
const router = createRouter({ routeTree, context: { queryClient, auth } })

export const Route = createFileRoute('/_auth/dashboard')({
  beforeLoad: ({ context }) => {
    if (!context.auth.isAuthenticated) throw redirect({ to: '/login' })
  },
  component: Dashboard,
})

© Mindrally, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in tanstack-router of Mindrally/skills.

Open the folder on GitHubat commit 9718410