The Complete Cursor Guide — 10x Your Development Productivity with AI
A thorough guide to the AI code editor Cursor. From installation to AI features, MCP integration, and practical development techniques.
Cursor is a next-generation code editor with AI deeply integrated throughout. Built on VS Code, it lets you naturally generate, modify, and understand code with AI assistance. This guide covers everything from basics to advanced usage.
Installation & Setup
Download the installer from Cursor's official site (cursor.com) and run it. Migration from VS Code is straightforward — it can automatically import your extensions and settings. Create an account on first launch and choose the free plan or Pro ($20/month). The free plan includes 200 AI completions per month.
Basic AI Features
Cmd+K (Ctrl+K) opens inline AI editing. Select code and type instructions like "add error handling to this function" and AI modifies the code. Cmd+L (Ctrl+L) opens the chat panel for asking questions about your code. Tab completion works automatically, predicting and suggesting the next code you should write.
Composer Mode
Composer mode (Cmd+Shift+I) is Cursor's most powerful feature. It understands your entire project context and proposes changes across multiple files at once. Instructions like "add authentication" or "convert this API from REST to GraphQL" trigger the creation and modification of all necessary files. Changes are shown in diff format so you can review before accepting.
MCP Integration
Cursor supports MCP (Model Context Protocol) for external service integration. You can load database schemas to auto-generate CRUD code, reference API docs to create type definitions, or generate components from Figma designs — streamlining your entire development workflow with AI. Configuration is as simple as adding an MCP server URL in Cursor's settings.
5 Practical Techniques
For code review, select a diff and ask "What are the issues with this code?" For automated test writing, select a function and say "Write unit tests for this function." For refactoring, instruct "Extract this logic into a custom hook" and it handles proper file splitting. For documentation, select code and say "Add JSDoc comments." For debugging, paste an error message into the chat and get cause analysis and fix suggestions.
Summary
Cursor is an essential tool for developers in the AI era. Even just Tab completion and Cmd+K can significantly boost productivity, while Composer mode and MCP integration push it even further. Start with the free plan and see for yourself.