These 30 prompts give Cursor Agent concrete React tasks, useful context, and boundaries for its changes. They are designed to reduce repeated prompting—not to guarantee a particular time saving. Cursor describes Agent as able to work independently on coding tasks, edit files, search a codebase, and run terminal commands; review its output before accepting changes.
How to get better results from React prompts in Cursor
A useful prompt says what should change and what is true now. Include the relevant component, observed behavior or error, constraints such as existing project conventions, and what you want back. If you know the files, attach them with @ mentions; if you do not, ask Cursor to find the implementation first. Cursor’s guidance covers both context attachment and the value of intent and state: Prompting agents and Working with Context.
Use Ask for read-only exploration and Agent when you want a bounded code change. A sensible sequence is to investigate, decide on the scope, then request an edit and inspect the diff and verification. See Cursor Modes. Put stable, reusable project conventions in project rules rather than repeating them in every prompt; keep rules focused and scoped where possible. Cursor documents these practices in Cursor Rules.
Replace bracketed details before sending a prompt. If a task could touch many files, ask for an inspection and plan before authorizing implementation.
Recommended Free Tools
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Investigation prompts
1. Find where a feature is implemented
In this React codebase, find where [feature] is implemented and explain the path from the user interaction to the rendered result. Do not edit files. Name the relevant files and describe their responsibilities.
2. Trace a prop through the component tree
Trace the [prop or value] from [starting component or entry point] to the component that uses it. Do not edit files. Show the relevant files and explain where the value could become undefined or change.
3. Explain a state update
Inspect [component or feature]. Explain what triggers [state value] to update, which UI depends on it, and whether any effects or callbacks also affect it. Do not change code; cite the files and functions you inspected.
4. Identify the cause of a reported bug
Investigate this behavior: [describe exact steps and expected versus actual result]. Search the relevant React code and explain the most likely cause with evidence from the implementation. Do not edit files. If the evidence is insufficient, tell me what additional information is needed.
Free tools Windows power users keep installed
One-click scans. No signup required.
5. Map the existing patterns before a change
Before I add [feature], inspect similar implementations in this project. Do not edit files. Summarize the conventions for component structure, styling, data fetching, and tests that are relevant, with file paths.
Component and feature implementation prompts
6. Build a component that fits the project
Create a React component for [purpose] in [file or feature area]. It should accept [props], render [states or content], and follow the closest existing component pattern. Keep the change limited to this feature; report the files changed and any assumptions.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
7. Add loading, error, empty, and success states
In [component or feature], handle loading, error, empty, and success states for [data]. Preserve the current successful behavior and use existing project patterns for messages and styling. Inspect the data flow first; make only the changes needed for these states.
8. Add a form with validation
Implement [form purpose] in [file or feature]. Validate [fields and rules], show errors next to the relevant fields, and prevent submission when invalid. Follow existing form conventions and preserve the current submission API. Include or update focused tests if the project has a test pattern.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errors9. Make a dialog accessible and predictable
Update [dialog component] so it supports [required interactions, such as close button and Escape key]. Preserve its current API and styling. Check focus behavior and accessible naming, follow existing project conventions, and add or adjust tests for the interactions.
10. Add a reusable hook
Create a hook for [specific repeated behavior] based on the existing uses in [files]. Keep its API minimal, handle cleanup where needed, and migrate only [named consumers]. Explain the hook’s inputs and return value and run the relevant tests.
11. Implement a feature from acceptance criteria
Implement [feature] to meet these acceptance criteria: [list observable outcomes]. First inspect the relevant files and existing patterns. Keep the change within [scope], preserve unrelated behavior, and summarize how each criterion is addressed.
12. Add a responsive layout
Adjust [component or page] for [mobile/tablet/desktop requirements]. Use the project’s existing styling system and preserve current desktop behavior. Make the smallest relevant change; identify the breakpoints or layout rules used and check for overflow.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Debugging and maintenance prompts
13. Diagnose a React error from its stack trace
Explain this error and stack trace in the context of this codebase: [paste error]. Do not edit files. Identify the first relevant application frame, inspect its inputs and render path, and give the likeliest cause plus a minimal fix approach.
14. Fix a stale state or closure bug
Investigate whether [callback, effect, or handler] uses stale state in [component]. Do not change code yet. Explain the render and update sequence that causes the observed behavior, then propose the smallest safe fix without changing unrelated logic.
15. Investigate an effect running too often
In [component], determine why this effect runs [more often than expected / repeatedly]. Inspect its dependencies and the values created during render. Do not edit files; explain the cause and suggest the narrowest correction that preserves intended behavior.
16. Resolve a TypeScript error
Resolve this TypeScript error in [file]: [paste error]. Inspect the surrounding types and callers. Prefer a fix that accurately models the data rather than suppressing the error; keep the public API unchanged unless the code shows that is necessary.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →17. Find and fix a React key warning
Find the source of this React key warning in [page or feature]. Explain why the current key is unsuitable, then update only the affected list to use a stable key available in the data. Do not use the array index unless the list is demonstrably static.
18. Fix a failing test without weakening it
Investigate this failing test: [test name and output]. Compare the assertion with the component’s intended behavior and existing tests. Make the smallest correction to the implementation or test, and do not remove the assertion or reduce coverage just to make it pass.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Refactoring prompts
19. Split a component that has too many responsibilities
Review [component] and identify distinct responsibilities that make it hard to maintain. First propose a small extraction plan without editing. After I approve, extract only the agreed pieces, preserve the current behavior and API, and run relevant tests.
20. Remove duplicated UI safely
Find duplicated [UI or logic] in [scope]. Compare the cases before proposing a shared component or helper. Do not edit files until you explain what should be shared, what should remain distinct, and which callers would change.
21. Replace prop drilling with a suitable pattern
Trace how [value or action] passes through [components]. Assess whether context or another existing project pattern is appropriate; do not introduce a new state library. First explain trade-offs and scope. If the change is justified, implement it without changing unrelated state.
22. Simplify a complex conditional render
Refactor the conditional rendering in [component] for readability. Preserve every existing state and its behavior. Before editing, list the cases the current code handles; after editing, explain how each case maps to the new structure.
23. Migrate a component to the project’s current pattern
Compare [component] with the project’s current pattern for [hooks, styling, or data fetching], using [example file] as a reference. Migrate only the outdated part, keep behavior and external props stable, and note any differences that should not be copied.
Quality, accessibility, and verification prompts
24. Add focused tests for user behavior
Add tests for [component or feature] that cover these user-visible cases: [cases]. Follow the existing test setup and query elements by accessible role or label where practical. Do not test implementation details unless the project’s established pattern requires them.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
25. Review keyboard and screen-reader access
Audit [component or page] for keyboard operation and accessible names, roles, and state. Do not edit files yet. List concrete issues with file locations and propose the smallest changes; distinguish confirmed problems from items that need manual assistive-technology testing.
26. Check a change for edge cases
Review the implementation of [feature] against these edge cases: [empty input, missing data, slow response, repeated action, or others]. Do not edit files. Identify only cases the current code fails to handle and explain how each can be reproduced.
27. Review a diff for regressions
Review my current diff for React-specific bugs, unintended behavior changes, and missing tests. Do not edit files. Prioritize findings by severity, include file and line references, and omit stylistic preferences unless they violate a project rule.
28. Run the right verification commands
Inspect the project scripts and the files changed for [feature]. Identify the appropriate lint, type-check, and test commands; then run the relevant ones. Do not fix unrelated failures. Report the exact commands and results, and distinguish existing failures from regressions if the evidence allows.
29. Explain a performance concern before optimizing
Investigate whether [component or interaction] has a performance issue, using the code and any profiling data I provide: [details]. Do not make speculative memoization changes. Explain the likely bottleneck, what evidence supports it, and the smallest change worth testing.
30. Prepare a change for handoff
Review the changes for [feature] and prepare a concise handoff: files changed, behavior added or altered, verification run and results, and known limitations. Do not claim a command passed unless you ran it, and do not make additional edits.
Make recurring instructions reusable
If you find yourself repeating a project convention—such as how React components are tested or which styling system to use—consider putting that stable instruction in a focused project rule. Keep task-specific goals, current errors, and one-off constraints in the prompt. Cursor’s rules guidance recommends concrete, reusable instructions scoped to the codebase or relevant files, rather than a large set of generic directions applied everywhere.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
