AI Code Coverage

A VS Code extension for analyzing the ratio of AI-generated code to human-written code in your projects.

🌟 Features

🔍 Intelligent Analysis

• AI Code Detection: Uses multiple patterns to identify AI-generated code
• Real-time Analysis: Automatically analyzes AI code ratio when files are saved
• Confidence Assessment: Provides confidence scores for each analysis result

📊 Visualization

• Status Bar Indicator: Real-time display of current file's AI code ratio
• Tree View Panel: Hierarchical AI code coverage display for project files
• Detailed Reports: Generate beautiful HTML report pages

⚙️ Configuration Options

• Auto Analysis: Enable/disable automatic analysis on file save
• Status Bar Display: Control AI ratio display in status bar
• Exclude Patterns: Customize files and folders to exclude

🚀 Quick Start

Usage

Method 1: Command Palette

1. Press Ctrl+Shift+P (Windows/Linux) or Cmd+Shift+P (Mac)
2. Type "AI Code" to see available commands
3. Select the appropriate analysis command

Method 2: Sidebar

1. Find the "AI Code Coverage" panel in the Explorer
2. Click the refresh button to start analysis

Method 3: Status Bar

1. Click the AI ratio indicator on the right side of the status bar
2. Quickly analyze the current file

📋 Available Commands

• Analyze Project for AI Code Coverage: Analyze AI code ratio for the entire project
• Analyze Current File: Analyze AI code ratio for the currently open file
• Show AI Code Report: Generate detailed analysis report
• Refresh Analysis: Clear cache and re-analyze

🎯 AI Code Detection Principles

This extension identifies AI-generated code through the following patterns:

Comment Patterns

• Comments containing keywords like "Generated by", "AI generated", "Copilot"
• Standard auto-generated comment formats

Code Structure Patterns

• Highly regular function naming patterns
• Excessive nesting of arrow functions
• Unusually complex ternary expressions

Naming Patterns

• Overly long variable names (20+ characters)
• Overly descriptive function names
• Repetitive temporary variable naming patterns

Complexity Patterns

• Overly detailed type annotations
• Very detailed try-catch blocks

Human Code Characteristics

• TODO, FIXME, HACK, NOTE comments
• console.log debug statements
• debugger breakpoints

📊 Understanding Analysis Results

AI Ratio Explanation

• 80%+: 🔴 High AI ratio - Likely mostly AI-generated
• 40-80%: 🟡 Medium ratio - Mixed AI and human code
• <40%: 🟢 Low AI ratio - Primarily human-written

Confidence Level Explanation

• High Confidence (70%+): Clear AI or human characteristics detected
• Medium Confidence (40-70%): Some characteristics present but not obvious
• Low Confidence (<40%): Unclear characteristics, based on code complexity estimation

⚙️ Configuration Options

Search for "AI Code Coverage" in VS Code settings or edit settings.json directly:

{
  "aiCodeCoverage.enableStatusBar": true,
  "aiCodeCoverage.autoAnalyze": true,
  "aiCodeCoverage.excludePatterns": [
    "**/test/**",
    "**/tests/**",
    "**/*.test.*",
    "**/*.spec.*"
  ]
}

🚀 Automatic Ignore Rules

The plugin automatically reads and applies .gitignore file rules from the project root, no manual configuration needed:

• ✅ Automatically ignores node_modules/, dist/, .git/, etc.
• ✅ Follows project's .gitignore configuration
• ✅ Only analyzes actual source code files
• ⚙️ Additional exclude rules can be added via excludePatterns

🎨 User Interface

Status Bar Indicator

• 🤖 High AI ratio (80%+)
• ⚙️ Medium ratio (50-80%)
• 👤 Low AI ratio (20-50%)
• ✏️ Mostly human (<20%)

Tree View

• 📊 Project overview statistics
• 📁 Folder hierarchy display
• 📄 File detailed information
• 🎯 Confidence and pattern count

🔧 Developer Information

Supported File Types

• TypeScript (.ts, .tsx)
• JavaScript (.js, .jsx)
• Python (.py)
• Java (.java)
• C/C++ (.c, .cpp)
• C# (.cs)
• PHP (.php)
• Ruby (.rb)
• Go (.go)
• Rust (.rs)

Note: The AI code detection results provided by this extension are for reference only and should not be used as the final judgment of code quality or ownership.