DEI - Detect Everything Immediately

A high-performance static analysis tool for detecting god classes, god methods, and architectural issues in your codebase.

Features

• 🚀 Fast parallel analysis using Rayon's work-stealing scheduler
• 🔍 Multi-language support (Rust, C#, with more coming)
• 📊 Architecture metrics including coupling analysis and circular dependency detection
• 🎯 Configurable thresholds for lines, methods, and complexity
• 💾 JSON output for CI/CD integration
• 🎨 Beautiful terminal output with progress indicators

Installation

cargo install dei

Quick Start

Analyze a file or directory:

dei check src/

Check with custom thresholds:

dei check src/ --max-lines 200 --max-methods 15 --max-complexity 40

Output as JSON for CI integration:

dei check src/ --format json

Analyze architecture quality:

dei arch src/

What it Detects

God Classes

Classes that do too much - violating single responsibility principle:

• Too many lines of code
• Too many methods
• High cyclomatic complexity

God Methods

Methods that are too complex:

• Too many lines
• Too high cyclomatic complexity
• Too many parameters

Architecture Issues

• High coupling between components
• Circular dependencies
• Poor maintainability metrics

Supported Languages

• ✅ Rust
• ✅ C#
• 🔜 Python
• 🔜 JavaScript/TypeScript
• 🔜 Java
• 🔜 Go

Configuration

Default thresholds:

• Max class lines: 300
• Max methods per class: 20
• Max class complexity: 50
• Max method lines: 50
• Max method complexity: 10
• Max parameters: 5

Exit Codes

• 0 - No issues detected
• 1 - God classes or methods found

Performance

DEI is built for speed:

• Arena allocation for zero-copy AST traversal
• Lock-free concurrent data structures (DashMap)
• Rayon's work-stealing parallelism
• Efficient tree-sitter parsing

License

MIT License - see LICENSE file for details

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.