Cursor: The AI-Native Editor That’s Changing How Developers Code

What Is Cursor?

Cursor is an AI-native code editor – and it’s been causing a serious stir in the developer community over the past year or two. While tools like Copilot and Claude Code add AI to existing editors, Cursor takes a different approach: it built the whole editor around AI from the ground up.

It’s based on VS Code, so if you’re already a VS Code user, it will feel immediately familiar. But under the hood, Cursor integrates AI at a much deeper level – with features that feel genuinely futuristic compared to a simple autocomplete plugin.

Getting Set Up

1. Head to cursor.com and download the app for macOS, Windows, or Linux.
2. Install it just like any other application.
3. On first launch, you’ll be prompted to import your VS Code settings and extensions – say yes if you want to preserve your existing setup.
4. Create a Cursor account or sign in. There’s a free tier (with usage limits) and a Pro plan for heavier use.

Cursor ships with access to multiple AI models – Claude, GPT-4o, and others – so you’re not locked into one provider. The model you’re on affects the quality of the suggestions you get.

The Core Features That Make Cursor Different

Tab Completion (Not Just Autocomplete)

Cursor’s Tab completion goes further than standard autocomplete. It predicts what you’re going to do next based on the changes you’ve already made. If you rename a variable in one place, Tab can suggest updating every other reference. If you add a parameter to a function, it might suggest updating the call sites too.

Just keep pressing Tab as you work and Cursor will carry the thread of changes through your file intelligently.

Cmd+K / Ctrl+K: Inline Edit

This is one of Cursor’s most popular features. Press Ctrl+K (or Cmd+K on Mac) anywhere in your code and a small input bar appears. Type what you want – “add error handling”, “convert this to TypeScript”, “make this function async” – and Cursor rewrites your selected code in place. The change appears as a diff and you accept or reject it.

No sidebar needed, no switching context – it’s remarkably fast once you get used to it.

Cmd+L / Ctrl+L: The Chat Panel

This opens the main chat interface. It works like Claude.ai or Copilot Chat, but it’s much more context-aware of your codebase. You can reference files with @filename, reference symbols with @SymbolName, reference documentation with @docs, or even reference websites with @web.

For example:

How does the authentication flow work in @src/auth/ and what would I need to change to add OAuth support?

Composer / Agent Mode

Cursor’s Agent mode (sometimes called Composer) is its most powerful feature. It’s similar to Claude Code – you describe a task and Cursor goes off and does it across multiple files, running commands as needed. The difference is it’s all happening inside the editor with a visual interface rather than a terminal.

To use it, press Ctrl+Shift+I / Cmd+Shift+I, describe what you want to build, and watch Cursor plan out and execute the changes.

The .cursorrules File

One of the first things you should do in any Cursor project is create a .cursorrules file in your project root. This is a plain text file where you tell Cursor how to behave in this project. Examples:

You are helping build a Next.js 14 app using TypeScript and Tailwind CSS.
Always use the App Router, not the Pages Router.
Use named exports, not default exports.
Prefer server components unless client interactivity is needed.
Always include error boundaries.
Run `npm run typecheck` after making changes.

Cursor reads this file automatically and applies these rules to every AI interaction in the project. This is the single biggest thing you can do to improve Cursor’s output quality for your specific codebase.

Practical Workflow Ideas

The “plan then build” workflow: Open Agent mode, describe the feature in detail, and ask Cursor to first give you a plan before making any changes. Review the plan, adjust it if needed, then tell it to proceed. This catches misunderstandings early.

The “Tab surfing” workflow: Make your first change manually, then just keep pressing Tab. Cursor will often carry your intent through a cascade of related changes. It’s surprisingly good at following the thread.

The “@ everything” workflow: When asking a question in chat, be generous with @ references. @file the relevant code, @web a documentation page, @docs a library. The more context Cursor has, the better the answer.

The “review before commit” workflow: Before committing, open chat and ask Cursor to review your staged changes. It can catch bugs, inconsistencies, or places where you forgot to update tests.

Tips for Beginners

• Learn the three main shortcuts: Tab for inline completion, Ctrl/Cmd+K for inline edit, Ctrl/Cmd+L for chat. That’s the core of using Cursor.
• Create a .cursorrules file immediately – even a few lines of context makes a noticeable difference to quality.
• Don’t skip the diff review – when Agent mode makes changes, always scroll through the diffs before accepting.
• Start with small projects to learn – the power of Cursor becomes apparent on real projects, but it can feel overwhelming at first. A personal project or side project is a great place to get comfortable.

Tips for Advanced Users

• Use notepads (Cursor’s persistent notes feature) to maintain context across sessions – good for long-running projects where you want to track architectural decisions.
• Cursor supports custom model configurations – you can point it at a local model via Ollama if privacy or cost is a concern.
• The @web reference lets Cursor fetch live documentation. This is invaluable for working with frameworks that update frequently.
• You can use Cursor in SSH remote environments – point it at a remote server and it’ll edit files there directly.

Cursor vs VS Code + Copilot vs Claude Code: Which Should You Use?

The honest answer is that all three have their place, and many developers use more than one. A rough guide:

• Claude.ai / Claude Desktop – best for learning, planning, and conversations about code outside of a specific codebase.
• Claude Code – best for autonomous, terminal-based changes across a codebase, especially if you script or automate development tasks.
• Copilot in VS Code – best if you want a low-friction AI layer on top of your existing VS Code setup, with great inline completion.
• Cursor – best if you want the most capable, AI-first editor experience available right now, and you’re willing to make it your primary editor.

Wrapping Up the Series

That’s a wrap on our AI code writing series! We’ve gone from the simplest starting point – Claude.ai in a browser tab – through to full AI-native editors like Cursor. The landscape is moving incredibly fast, but the fundamentals are consistent: give the AI context, review what it produces, iterate, and don’t accept output blindly.

Whether you’re a complete beginner writing your first function with Claude.ai or an experienced developer running Claude Code in your CI pipeline, there’s never been a better time to add AI to your development workflow. Start where you’re comfortable, and experiment from there.