remix-run

Build applications with React Router in Framework, Data, Declarative, and unstable RSC modes. Use when configuring routes, route modules, loaders, actions, forms, fetchers, navigation, pending UI, SSR/SPA/pre-rendering, middleware, URL params/search params, or React Router upgrades.

Prepare React Router release notes before running the changes/versioning scripts. Use when asked to review, polish, normalize, or prepare pending change files under packages/*/.changes, remove semantic commit prefixes from release bullets, enforce imperative tense, decide whether a manual scripts/changes/whats-changed.md section is warranted, or draft long-form release notes for new features, stable future flags, or unstable flags.

Implement a React Router RFC from a GitHub discussion URL. Fetches the proposal, evaluates community feedback, resolves outstanding questions interactively, then implements the feature with tests, future flags (if breaking), and a changeset.

Fix a reported bug in React Router from a GitHub issue. Use when the user provides a GitHub issue URL and asks to fix a bug, investigate an issue, or reproduce a problem. Handles the full workflow: fetching the issue, finding the reproduction, writing a failing test, and implementing the fix.

Bring a blocked React Router community pull request across the finish line. Use when the user invokes `/finish-line` or `$finish-line`, provides a PR number or URL, and asks Codex to resolve merge blockers such as a missing change file, missing documentation, missing tests, or stale contributor follow-up. Handles evaluating the blocker and pushing small maintainer fixes onto a contributor PR branch when authorized.

Create and package React Router pull requests. Use when the user asks to create, open, prepare, or finish a PR for this repository, including branch/commit/push handoff, draft PR creation, PR body writing, and applying GitHub labels such as pkg:*, feat:*, docs, github-actions, or dependencies.

Route gh-aw workflow design/create/debug/upgrade requests to the right prompts.

Build full-stack React applications using React Router's framework mode. Use when configuring routes, working with loaders and actions, handling forms, handling navigation, pending/optimistic UI, error boundaries, or working with react-router.config.ts or other react router conventions.

Build React applications using React Router's declarative mode with BrowserRouter. Use when configuring routes with JSX, navigating with Link/NavLink, or reading URL params and search params without data loaders or actions.

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.