Skip to main content

Mastering Long Codebases with Cursor

Introduction​

Managing large codebases can be challenging, but Cursor provides powerful tools to help you navigate and understand complex projects. This guide will show you how to effectively work with large codebases using Cursor.

Project Setup​

Creating a Project Structure​

  1. Create a .notes directory in your project root
  2. Add essential documentation files:
    • project_overview.md: High-level project description
    • task_list.md: Current tasks and their status
    • directory_structure.md: Project layout documentation

Setting Up Rules​

Create a .cursorrules file in your project root:

{
    "rules": {
        "context_initialization": {
            "description": "Starting point for each interaction",
            "steps": [
                "Read project documentation first",
                "Check existing code before modifications"
            ]
        },
        "safety_requirements": [
            "Maintain type safety",
            "Preserve error handling",
            "Document new code"
        ]
    }
}

Managing Project Documentation​

Project Overview​

Your project_overview.md should include:

  • Project goals and objectives
  • Architecture overview
  • Key technologies used
  • Important dependencies

Task Management​

Keep your task_list.md updated with:

  • Current tasks in progress
  • Completed tasks
  • Future planned work
  • Priority levels

Best Practices​

  1. Consistent Documentation

    • Keep documentation up to date
    • Use clear, consistent formatting
    • Include relevant code examples

  2. Code Organization

    • Use meaningful file and folder names
    • Group related functionality together
    • Maintain clear separation of concerns

  3. Version Control

    • Make regular commits
    • Write descriptive commit messages
    • Use branches for features/fixes

Working with AI Assistants​

  1. Context Setting

    • Reference specific files using @ mentions
    • Provide clear, focused questions
    • Include relevant code snippets

  2. Code Reviews

    • Ask AI to review code changes
    • Request suggestions for improvements
    • Validate security considerations

Common Challenges and Solutions​

  • Use Cursor's search features
  • Create bookmarks for important files
  • Maintain an index of key components

Performance Optimization​

  • Keep project well-organized
  • Remove unnecessary files
  • Use appropriate ignore files

Tips for Success​

  1. Regular Maintenance

    • Update documentation frequently
    • Remove obsolete code
    • Keep dependencies current

  2. Team Collaboration

    • Share knowledge effectively
    • Maintain coding standards
    • Document important decisions

Conclusion​

Managing large codebases becomes more manageable with proper organization and tools. Using Cursor's features effectively, combined with good documentation practices, helps maintain project clarity and efficiency.