Cursor IDE 2.0 Complete Guide: AI-powered development with Composer, Debug Mode, Visual Editor, MCP, parallel agents. Learn TDD, refactoring, infrastructure-as-code patterns. 6-part comprehensive tutorial with 30+ recipes.

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Cursor IDE: Complete Technical Guide

Master Cursor IDE for maximum productivity
Target Audience: Senior developers, tech leads, engineering teams
Maintainer: Viachaslau Kudzinau (viachaslau_kudzinau@epam.com)
Last Updated: January 2026

🎯 What You'll Master

This comprehensive guide teaches you to leverage Cursor IDE for:

• ✅ Tab autocomplete - Fast, predictive code completion (320ms)
• ✅ Inline Edit (Cmd+K) - Surgical, focused changes
• ✅ Composer/Agent (Cmd+I) - Multi-file orchestration
• ✅ Rules - Always-on constraints and guardrails (.cursor/rules/*.md)
• ✅ Skills - Optional reusable workflows (.cursor/skills/)
• ✅ Hooks - Lifecycle control for autonomous iteration (.cursor/hooks.json)
• ✅ Debug Mode - Hypothesis-driven debugging
• ✅ Parallel Agents - Explore multiple solutions simultaneously
• ✅ Visual Editor - Real-time UI styling and design
• ✅ MCP Integration - Connect to external systems (Slack, GitHub, databases)
• ✅ Context7 - Live, version-specific library documentation (MCP tool)
• ✅ Multiple AI models - Cursor 4.5, GPT-5, Cursor 3, Cursor Composer
• ✅ Enterprise patterns - Team collaboration and deployment

🚀 Get Your First Win in 5 Minutes

1. Auto-Complete with Tab

// Just start typing and press Tab
function calculateMonthlyPayment(principal, rate, years) {
  // Tab suggests the entire implementation
}

2. Inline Edit with Cmd+K

Select a function
Press Cmd+K (Windows: Ctrl+K)
"Refactor this function to use async/await and add error handling"

3. Multi-File Feature with Composer

Press Cmd+I (Windows: Ctrl+I)
"@codebase Add authentication to the entire application"

4. Debug with Debug Mode

"This function returns undefined intermittently. Debug and fix it."
Agent instruments code, analyzes logs, proposes fix

📚 Guide Structure

[Part 1: Fundame