What is Cursor AI Editor?

Cursor is an AI-powered code editor built on VS Code with Claude 4.5 Sonnet integration. It features Tab completion for 30-50% faster coding, Cmd+K for surgical edits, AI Chat (Cmd+L) for questions and debugging, and Composer for multi-file editing.

How do I use Tab completion in Cursor?

Tab completion in Cursor predicts 1-15 lines of code. Start typing a function name or code pattern, and press Tab to accept the AI suggestion. Use Cmd+→ to accept word-by-word, and Alt+[ or Alt+] to cycle through alternatives.

What is Cmd+K in Cursor?

Cmd+K (Ctrl+K on Windows/Linux) is Cursor's inline editing feature. Select code, press Cmd+K, describe your change in plain English (like 'add error handling' or 'convert to TypeScript'), and Cursor makes the edit instantly.

How do @ symbols work in Cursor?

@ symbols provide context to Cursor's AI: @Files references specific files, @Folders references directories, @Codebase searches your entire project, @Docs queries official documentation, and @Web searches the internet. They dramatically improve AI accuracy.

What are Cursor Rules?

Cursor Rules are custom instructions in a .cursorrules file that tell the AI how to generate code for your project. They enforce coding standards, preferred libraries, file organization, and team conventions automatically.

Start

18 min

Advanced

4.8

What You'll Learn

Advanced AI Techniques

Learn sophisticated prompt engineering, context management, and AI workflow optimization.

Debugging Mastery

Master AI-assisted debugging, error analysis, and complex problem-solving techniques.

Workflow Optimization

Optimize your development workflow with advanced Cursor features and integrations.

Custom Configurations

Configure Cursor for your specific needs, team requirements, and development environment.

Best Practices

Follow industry best practices for AI-assisted development and team collaboration.

Prerequisites

Before starting these advanced tutorials, make sure you're comfortable with:

Basic Cursor interface and navigation
Using the chat panel and AI edit mode
File management and project organization
Basic code generation and editing
Your chosen programming language and framework