react-router-data-mode
Build React applications using React Router's data mode with createBrowserRouter and RouterProvider. Use when working with route objects, loaders, actions, Form, useFetcher, or pending/optimistic UI without the Vite plugin.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/remix-run/agent-skills --skill react-router-data-mode- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads react-router-data-mode automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
React Router Data Mode
Data mode uses createBrowserRouter and RouterProvider to enable data loading, actions, and pending UI without the framework's Vite plugin. This is ideal for existing React applications that want to add data loading and mutation capabilities.
When to Apply
- Using
createBrowserRouterwith route objects - Loading data with
loaderproperty on routes - Handling mutations with
actionproperty - Navigating with
<Link>,<NavLink>,<Form>,redirect, anduseNavigate - Implementing pending/loading UI states with
useNavigation - Using
useFetcherfor mutations without navigation
References
Load the relevant reference for detailed guidance on the specific API/concept:
| Reference | Use When |
|---|---|
references/routing.md | Configuring routes, nested routes, layout |
references/route-object.md | Understanding route object properties |
references/data-loading.md | Loading data with loaders |
references/actions.md | Handling forms, mutations, validation |
references/navigation.md | Links, programmatic navigation, redirects |
references/pending-ui.md | Loading states, optimistic UI |
references/ssr.md | Server-side rendering with data mode |
Critical Patterns
These are the most important patterns to follow. Load the relevant reference for full details.
Basic Router Setup
import { createBrowserRouter, RouterProvider } from "react-router";
const router = createBrowserRouter([
{
path: "/",
Component: Root,
children: [
{ index: true, Component: Home },
{ path: "about", Component: About },
],
},
]);
ReactDOM.createRoot(root).render(<RouterProvider router={router} />);
Forms & Mutations
Search forms - use <Form method="get">, NOT onSubmit with setSearchParams:
// ✅ Correct
<Form method="get">
<input name="q" />
</Form>
// ❌ Wrong - don't manually handle search params
<form onSubmit={(e) => { e.preventDefault(); setSearchParams(...) }}>
Inline mutations - use useFetcher, NOT <Form> (which causes page navigation):
const fetcher = useFetcher();
const optimistic = fetcher.formData
? fetcher.formData.get("favorite") === "true"
: isFavorite;
<fetcher.Form method="post" action={`/favorites/${id}`}>
<button>{optimistic ? "★" : "☆"}</button>
</fetcher.Form>;
See references/actions.md for complete patterns.
Optimistic UI Pattern
Use fetcher.formData to show expected results immediately:
function FavoriteButton({ itemId, isFavorite }) {
const fetcher = useFetcher();
// Optimistic: use pending form data, fallback to server state
const optimistic = fetcher.formData
? fetcher.formData.get("favorite") === "true"
: isFavorite;
return (
<fetcher.Form method="post" action={`/items/${itemId}/favorite`}>
<input type="hidden" name="favorite" value={String(!optimistic)} />
<button>{optimistic ? "★" : "☆"}</button>
</fetcher.Form>
);
}
See references/pending-ui.md for complete patterns.
Further Documentation
If anything related to React Router is not covered in these references, you can search the official documentation:
FAQ
What does the react-router-data-mode skill do?
Build React applications using React Router's data mode with createBrowserRouter and RouterProvider. Use when working with route objects, loaders, actions, Form, useFetcher, or pending/optimistic UI without the Vite plugin.
How do I install react-router-data-mode?
Run npx skills add https://github.com/remix-run/agent-skills --skill react-router-data-mode in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/react-router-data-mode/ (personal) or .claude/skills/react-router-data-mode/ (project).
Which AI agents can use react-router-data-mode?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is react-router-data-mode safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains react-router-data-mode?
It is published by remix-run in remix-run/agent-skills. It has 878 recorded installs.
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