Cursor prompts for React developers help you move faster through the boring parts of a React codebase — refactors, tests, migrations, error triage — without letting the AI ship code you have not read. Every prompt below is written for real US React teams working on production apps: TypeScript is on, Next.js 15 app router is the default target for new work, ESLint and Prettier are enforced in CI, and PRs go through code review before merging. The prompts assume you are driving Cursor's Composer or Cmd+K inline edits, not a chat-only tool.
These templates are opinionated about tooling. Tests are Vitest or Jest with React Testing Library. Accessibility checks run through axe-core (jest-axe or the axe DevTools extension). Component documentation lives in Storybook with args and controls. State management is either useState/useReducer, Zustand, or Redux Toolkit — the prompts ask you to name your stack so Cursor does not invent one. Every prompt starts with 'Act as a US React developer using Cursor.' so the model stays in the right voice and does not slip into generic tutorial mode.
This content is technical guidance for working developers, not legal or licensing advice. Cursor sends the code you highlight to a third-party model provider. Before pasting proprietary components, review your company's AI tool policy, exclude .env and secret files from the workspace index, and confirm your Cursor Privacy Mode setting. When in doubt about a suggestion, run the tests, read the diff, and never merge code you cannot explain in code review.
Cursor prompts for React developers help you move faster through the boring parts of a React codebase — refactors, tests, migrations, error triage — without letting the AI ship code you have not read. Every prompt below is written for real US React teams working on production apps: TypeScript is on, Next.js 15 app router is the default target for new work, ESLint and Prettier are enforced in CI, and PRs go through code review before merging. The prompts assume you are driving Cursor's Composer or Cmd+K inline edits, not a chat-only tool.
These templates are opinionated about tooling. Tests are Vitest or Jest with React Testing Library. Accessibility checks run through axe-core (jest-axe or the axe DevTools extension). Component documentation lives in Storybook with args and controls. State management is either useState/useReducer, Zustand, or Redux Toolkit — the prompts ask you to name your stack so Cursor does not invent one. Every prompt starts with 'Act as a US React developer using Cursor.' so the model stays in the right voice and does not slip into generic tutorial mode.
This content is technical guidance for working developers, not legal or licensing advice. Cursor sends the code you highlight to a third-party model provider. Before pasting proprietary components, review your company's AI tool policy, exclude .env and secret files from the workspace index, and confirm your Cursor Privacy Mode setting. When in doubt about a suggestion, run the tests, read the diff, and never merge code you cannot explain in code review.
Guides, tips, and deep dives for this prompt category
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Read moreCollectionCreate stunning Studio Ghibli-inspired images using ChatGPT GPT-4o. 50 free prompts for Ghibli art, landscapes, characters, and scenes.
Read moreCopy any prompt below, paste into ChatGPT, Claude, Gemini, or Copilot, and fill in the placeholders in [brackets].
Act as a US React developer using Cursor. Refactor [component name] from class-based to functional with hooks. Preserve all props, state, lifecycle behavior (componentDidMount → useEffect with correct deps, componentWillUnmount → cleanup return), and existing test IDs. Use TypeScript strict mode, name the props interface [ComponentName]Props, and do not change the public API. Show the diff and list any behavior changes you had to make.
Act as a US React developer using Cursor. Add TypeScript to [file path] which is currently .jsx. Infer prop types from usage across the codebase (search for imports of this component), add explicit return types on all functions, replace any implicit 'any' with the narrowest type that compiles, and add JSDoc comments only where the type alone is not self-explanatory. Do not enable ts-ignore or ts-expect-error.
Act as a US React developer using Cursor. Fix a hydration mismatch in this Next.js 15 app router page: [paste component and error]. Identify whether the mismatch is from Date/time rendering, window/document access during SSR, conditional client-only content, or a third-party component. Propose the minimal fix (useEffect for client-only state, 'use client' directive, dynamic import with ssr: false, or suppressHydrationWarning as a last resort) and explain why the other options are wrong here.
Act as a US React developer using Cursor. Generate a Vitest test file for [component name] using React Testing Library. Cover: renders with default props, renders each prop variant, fires the primary user interaction (click/submit/keydown), calls the [callback prop name] with the expected args, and renders the loading and error states. Use userEvent (not fireEvent) for interactions, screen queries by role first then by label, and no snapshot tests.
Act as a US React developer using Cursor. Run an accessibility audit of [component name] using axe-core (via jest-axe). Generate a test that asserts zero axe violations for each prop variant, and separately list any WCAG 2.1 AA issues axe cannot catch — color contrast on dynamic content, focus order after modal open, keyboard traps in custom widgets, missing aria-live regions for async status. Suggest one code change per issue.
Act as a US React developer using Cursor. Decide whether [feature name] in our Next.js 15 app router should be a server component, a client component, or a mix. The feature does [describe behavior: fetches data / handles form state / uses browser APIs / renders a chart]. List which parts must be 'use client', which stay server, whether to fetch in the server component or use a route handler, and where to place the client/server boundary to minimize the client bundle.
Act as a US React developer using Cursor. Migrate [route path] from Next.js Pages Router (pages/[...]) to App Router (app/[...]). Convert getServerSideProps or getStaticProps to a server component with async data fetching, move API routes to route handlers (route.ts with GET/POST exports), replace next/router with next/navigation (useRouter, usePathname, useSearchParams), and update any _app.tsx or _document.tsx patterns to layout.tsx and metadata exports.
Act as a US React developer using Cursor. Extract the logic in [component name] that handles [describe: form state / data fetching / subscription / animation] into a custom hook named use[Thing]. Keep the hook pure (no JSX), return a typed object rather than a tuple if there are more than two return values, and generate a companion unit test using @testing-library/react renderHook. Update the original component to consume the hook.
Act as a US React developer using Cursor. Optimize re-renders in [long list component] which renders [describe: 500+ rows / a table / a chat log]. Profile the current behavior in your head first: which props change on every parent render, which children re-render unnecessarily, and whether memo/useMemo/useCallback would actually help here. Propose the change (React.memo with a custom comparator, key stabilization, virtualization via react-virtual or react-window, or state colocation) and justify why it fixes the actual bottleneck.
Act as a US React developer using Cursor. Fix a state management race condition in [component or hook name] where [describe symptom: stale data flashes / requests resolve out of order / setState called after unmount]. Identify whether the fix is an AbortController on fetch, a cleanup return in useEffect, an ignore-flag pattern, a request ID guard, or moving to a data-fetching library (SWR, TanStack Query). Show the diff and explain which race the fix closes.
Act as a US React developer using Cursor. Generate a Storybook story for [component name] using CSF3 (Component Story Format 3) with args and controls. Include a Default story, one story per prop variant, an interaction test using @storybook/test (play function) that clicks the primary action and asserts the callback, and argTypes with proper control types (select for enum props, boolean for flags, text for strings). Do not use the legacy storiesOf API.
Act as a US React developer using Cursor. Review this diff for bugs and code smells: [paste diff]. Check for missing useEffect dependencies, unstable references passed to memoized children, direct DOM mutation, missing key props in lists, unhandled promise rejections, missing loading/error states, accessibility regressions (removed aria attributes, focus lost after action), and TypeScript escape hatches (any, as, ts-ignore). Rank findings by severity and suggest a concrete fix for each.
Act as a US React developer using Cursor. Explain this React error and propose fixes: [paste error message and stack trace]. Identify the root cause (setState during render, missing key, invalid hook call, hydration mismatch, provider missing above consumer, etc.), point to the exact line likely responsible, and give the minimal code change. If the error is a symptom of a deeper design issue (rendering conditionally around hooks, deriving state from props), say so and suggest the refactor.
Act as a US React developer using Cursor. Add an error boundary with a fallback UI around [component or route name]. Use a class-based ErrorBoundary (still required for componentDidCatch), reset error state when the route or a resetKey prop changes, log the error to [console / Sentry / your logger], render a fallback that offers a retry button and a link to home, and cover it with a test that throws inside a child and asserts the fallback renders. Type the fallback as a React.ComponentType with the error and reset props.
Understanding the building blocks lets you adapt any prompt to your own creative direction.
Tell the AI who the output is for and what real workplace situation it should support.
Act as a federal program analyst preparing a plain-language memo for agency leadership.Name the exact deliverable: email, memo, checklist, SOP, meeting recap, training note, or status update.
Format the answer as a one-page briefing with bullets, risks, and next actions.Specify whether the output should sound official, executive-ready, plain-language, or employee-friendly.
Use a professional, neutral, public-sector tone suitable for a US agency audience.For government, HR, finance, healthcare, legal, and compliance workflows, accuracy guardrails matter more than clever wording.
Use only the facts below, flag assumptions, and include a section for items that need verification.Ask the model to surface uncertainty so the user can verify sensitive or official information before using it.
Before finalizing, list compliance risks, missing details, and any claims that need human review.Tested on this prompt category as of mid-2026. Ratings reflect quality for Cursor Prompts for React Developers specifically.
| Model | Best for | Rating |
|---|---|---|
| ChatGPT (GPT-4o / GPT-5) | Everyday drafting and summaries | |
| Claude Sonnet 4.5 | Long documents and policy | |
| Gemini 2.5 Pro | Grounded in Google workspace | |
| Copilot (M365) | Office 365 integration | |
| Perplexity | Answers with citations |
Ratings reflect suitability for this category. Free tiers available on all listed models. Last tested May 2026 by PromptSpace editors.
Use Cmd+K for single-file, in-place edits under about 200 lines — hook extraction, TypeScript conversion of one file, adding tests to one component. Use Composer for multi-file changes like Pages Router to App Router migrations, renaming a component used in 40 places, or splitting one large feature into multiple files. Composer sees more of your repo but is also more likely to over-edit; start with Cmd+K when in doubt.
Three things help. First, name your React and Next.js versions in the prompt (React 19, Next.js 15). Second, keep a .cursorrules file with your allowed dependencies and forbidden patterns. Third, always run tsc --noEmit and your linter after accepting a diff — a fake import from a non-existent package fails the type-check immediately. If a hook does not exist, delete it and ask Cursor for the actual API.
It writes decent RTL scaffolding for straightforward components — render, find by role, click, assert. It struggles with async state, effects, portals, and anything involving timers. For those, write the first test by hand, then ask Cursor to generate variants for the remaining prop combinations. Never accept a test that passes without seeing it fail first — flip an assertion, confirm red, then flip back.
No. Add .env, .env.local, and any secret files to .cursorignore so they are not indexed or sent to the model. For customer data or PII in fixtures, either scrub the fixtures first or exclude them. Confirm your Cursor Privacy Mode setting — with it on, prompts are not used for model training, but they still leave your machine. Review your company AI tool policy before enabling any code-completion tool on a production repo.
Put a .cursorrules file at the repo root that names your conventions: import ordering, no default exports, hooks live in src/hooks, tests colocated as *.test.tsx, use our design system primitives from @acme/ui, no useState for server data (use TanStack Query). Also include a short example of a well-formed component. Cursor reads this file on every prompt and drift drops significantly.
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Start by opening the file you actually want to change and highlight the smallest useful scope — one component, one hook, one test file. Cursor's Cmd+K works best on selections under 200 lines; Composer handles multi-file edits but still degrades on giant sprawls. Paste the prompt into Cmd+K when you want an inline diff, or into Composer when the change spans multiple files (a Pages Router → App Router migration, for example).
Always name your stack in the prompt: React 18 or 19, Next.js 14 or 15, TypeScript strict mode on or off, Vitest vs. Jest, Tailwind vs. CSS Modules. Cursor will otherwise pick defaults that do not match your codebase and you will spend more time undoing choices than writing code. After every accepted edit, run the type-checker (tsc --noEmit), the linter, and the test suite before staging the change — do not trust the green checkmark in the diff view alone.
Before you approve a Cursor-generated change in a PR, read every added or modified line. AI-generated React code has predictable failure modes: missing dependency arrays in useEffect, stale closures inside useCallback, incorrect 'use client' directives in Next.js 15 app router files, and hallucinated imports from packages you do not have installed. Run npm ls on any new import to confirm it exists and is the version you expect.
For accessibility and performance changes, run the actual tool — jest-axe in unit tests, Lighthouse or WebPageTest on a preview deploy, React DevTools Profiler for re-render claims. A prompt that says 'this reduces re-renders' means nothing until you have measured it. For hydration fixes in Next.js, load the page with JavaScript disabled and confirm the server HTML matches the first client render; the browser console warning is the ground truth, not the AI's confidence.
Every codebase has house rules that Cursor does not know until you tell it. Put a .cursorrules file at the repo root listing your conventions: import ordering (external, internal, styles), component file structure (component, tests, stories, index barrel), naming (PascalCase for components, camelCase for hooks, kebab-case for files), and forbidden patterns (no default exports, no class components, no useState for server data). Cursor reads .cursorrules on every prompt.
For monorepos, also specify which workspace or package the change lives in — 'edit only files under apps/web/src/features/checkout' — otherwise Composer will happily reach into shared packages and cause a cascading rebuild. If you use a design system (Radix, shadcn/ui, MUI, Chakra), name it so Cursor uses the right primitives instead of inventing raw <button> and <div> markup that does not match your tokens.
AI-generated React code is a first draft, not a merge candidate. Treat every Cursor suggestion the way you would treat a junior developer's PR: read it, question the choices, run the tests, and rewrite the parts that do not fit. A good workflow is prompt → accept diff → run tsc + lint + test → manually simplify → open PR. Skipping the 'manually simplify' step is how codebases end up with three ways to do the same thing.
Keep a short prompt library in your repo (docs/cursor-prompts.md or similar) with the prompts that consistently produce good output for your stack. Version it like code. When a prompt starts producing worse results after a Cursor model update, update the prompt — usually by naming the model behavior you want more explicitly ('use React 19 use() hook, not useEffect + fetch'). The prompts that survive are the ones that name concrete tools, versions, and constraints.
Use Cmd+K for single-file, in-place edits under about 200 lines — hook extraction, TypeScript conversion of one file, adding tests to one component. Use Composer for multi-file changes like Pages Router to App Router migrations, renaming a component used in 40 places, or splitting one large feature into multiple files. Composer sees more of your repo but is also more likely to over-edit; start with Cmd+K when in doubt.
Three things help. First, name your React and Next.js versions in the prompt (React 19, Next.js 15). Second, keep a .cursorrules file with your allowed dependencies and forbidden patterns. Third, always run tsc --noEmit and your linter after accepting a diff — a fake import from a non-existent package fails the type-check immediately. If a hook does not exist, delete it and ask Cursor for the actual API.
It writes decent RTL scaffolding for straightforward components — render, find by role, click, assert. It struggles with async state, effects, portals, and anything involving timers. For those, write the first test by hand, then ask Cursor to generate variants for the remaining prop combinations. Never accept a test that passes without seeing it fail first — flip an assertion, confirm red, then flip back.
No. Add .env, .env.local, and any secret files to .cursorignore so they are not indexed or sent to the model. For customer data or PII in fixtures, either scrub the fixtures first or exclude them. Confirm your Cursor Privacy Mode setting — with it on, prompts are not used for model training, but they still leave your machine. Review your company AI tool policy before enabling any code-completion tool on a production repo.
Put a .cursorrules file at the repo root that names your conventions: import ordering, no default exports, hooks live in src/hooks, tests colocated as *.test.tsx, use our design system primitives from @acme/ui, no useState for server data (use TanStack Query). Also include a short example of a well-formed component. Cursor reads this file on every prompt and drift drops significantly.