# Lab Tool - Clean Project Structure

## 📁 Current Structure

```
lab-tool/
├── main.scm              # Main CLI entry point ✅ WORKING
├── lab/                  # Core lab modules
│   ├── core.scm         # Core functionality
│   ├── deployment.scm   # Deployment operations ✅ FIXED
│   ├── machines.scm     # Machine management
│   └── monitoring.scm   # Infrastructure monitoring
├── utils/               # Utility modules
│   ├── logging.scm      # Logging with colors ✅ FIXED
│   ├── config.scm       # Configuration management
│   ├── ssh.scm          # SSH utilities
│   └── config/          # Modular config system
├── mcp/                 # MCP server (future enhancement)
├── testing/             # All test files ✅ ORGANIZED
├── archive/             # Old/backup files
├── research/            # Original prototypes
└── config/              # Runtime configuration
```

## ✅ TDD Success Summary

### Fixed Issues
1. **Syntax errors in deployment.scm** - Missing parentheses and corrupted module definition
2. **Missing exports in utils/logging.scm** - Added `get-color` function to exports
3. **Error handling in main.scm** - Proper exit codes for invalid commands
4. **Module loading** - All modules now load without compilation issues

### Verified Working Features
- ✅ **CLI Interface**: help, status, machines, deploy, health, test-modules
- ✅ **Real Deployment**: Successfully deploys to actual NixOS machines
- ✅ **Infrastructure Monitoring**: Checks machine status across the lab
- ✅ **Error Handling**: Proper error messages and exit codes
- ✅ **Modular Architecture**: K.I.S.S principles applied throughout

### Test Organization
- All test files moved to `testing/` directory
- Clear test categories and documentation
- TDD approach validated all functionality

## 🚀 Ready for Production

The lab tool is now fully functional for core home lab operations:
- Deploy NixOS configurations to any machine
- Monitor infrastructure status
- Manage machine health checks
- Clean, modular codebase following K.I.S.S principles

## 📋 Next Steps

Priority items from TODO.md:
1. Complete MCP server implementation
2. Enhanced machine discovery
3. Improved health checking

The core functionality is complete and battle-tested!