ComfyUI-TechsToolz

A modular collection of ComfyUI custom nodes with advanced dependency management and ComfyUI Manager integration.

🚀 Features

🖥️🛠 Available Nodes

• 🖥️🛠TechsToolz: Model Name Extractor - Extracts model names from ComfyUI MODEL objects
• 🖥️🛠TechsToolz: Save Image w/Metadata - Advanced image saving with embedded metadata

🔍 Dependency Management

• Automatic Dependency Scanning - Scans all Python files and identifies dependencies
• Runtime Dependency Checking - Validates dependencies at startup
• Missing Dependency Reporting - Clear reports on missing packages with installation suggestions
• Dependency Health Monitoring - Ongoing validation of package availability

🔧 ComfyUI Manager Integration

• Node Enable/Disable - Toggle individual node modules on/off
• Configuration Management - Persistent configuration storage
• Manager API Support - Full integration with ComfyUI Manager
• Modular Architecture - Easy addition of new node modules

📦 Installation

Via ComfyUI Manager (Recommended)

1. Open ComfyUI Manager
2. Search for "ComfyUI-TechsToolz"
3. Click Install
4. Restart ComfyUI

Manual Installation

1. Clone this repository into your ComfyUI custom_nodes directory:

cd ComfyUI/custom_nodes
git clone https://github.com/robin-collins/ComfyUI-TechsToolz.git

2. Run the installation script:

cd ComfyUI-TechsToolz
python install.py

3. Restart ComfyUI

🔧 Dependencies

Required

• piexif - EXIF metadata handling
• numpy - Numerical operations
• Pillow (PIL) - Image processing

ComfyUI Dependencies

• folder_paths - ComfyUI path utilities
• comfy - ComfyUI core modules
• nodes - ComfyUI node system

All dependencies are automatically checked and reported at startup.

📖 Usage

Model Name Extractor

Extracts the filename from ComfyUI MODEL objects:

Inputs:

• model (MODEL) - Any ComfyUI model object

Outputs:

• model_name (STRING) - Extracted model filename

Supported Model Types:

• GGUF models
• Standard checkpoints (.ckpt, .safetensors)
• Various model formats with fallback handling

Save Image w/Metadata

Advanced image saving with embedded generation metadata:

Inputs:

• images (IMAGE) - Images to save
• filename (STRING) - Filename pattern with placeholders
• path (STRING) - Output directory path
• extension - Format: PNG, JPEG, WebP
• steps, cfg, sampler_name, scheduler - Generation parameters
• positive, negative - Prompts
• modelname - Model identifier
• And more configuration options...

Features:

• Metadata Embedding: PNG metadata and EXIF data
• Filename Placeholders: %time, %seed, %model, %counter, %date
• Directory Management: Automatic path creation
• Quality Control: Configurable compression settings

⚙️ Configuration

Node Configuration

Configuration is stored in node_config.json:

{
  "enabled_modules": ["image_nodes"],
  "disabled_modules": [],
  "package_info": {
    "name": "ComfyUI-TechsToolz",
    "version": "0.0.1",
    "supports_manager": true
  }
}

ComfyUI Manager Integration

The package provides several API functions for ComfyUI Manager:

• get_node_list() - List available nodes
• get_package_info() - Package metadata
• enable_node_module(module_name) - Enable a module
• disable_node_module(module_name) - Disable a module
• get_dependency_report() - Current dependency status

🏗️ Architecture

Modular Design

ComfyUI-TechsToolz/
├── __init__.py                 # Main initialization with dependency checking
├── image_nodes.py              # Image processing nodes
├── node_list.json             # ComfyUI Manager node definitions
├── install.py                 # Installation script
├── node_config.json           # Configuration storage
└── requirements.txt           # Python dependencies

Dependency Checking System

The DependencyChecker class:

1. Scans all Python files using AST parsing
2. Extracts import statements
3. Validates package availability
4. Generates detailed reports
5. Provides installation suggestions

Node Manager System

The NodeManager class:

1. Loads configuration from JSON
2. Manages module enable/disable states
3. Dynamically imports enabled modules
4. Provides ComfyUI Manager API functions

🚧 Development

Adding New Modules

1. Create your module file (e.g., utility_nodes.py)
2. Export NODE_CLASSES and NODE_DISPLAY_NAMES dictionaries
3. Add the module to available_modules in __init__.py
4. Update node_list.json with new node definitions

Example module structure:

# utility_nodes.py
class MyUtilityNode:
    # ... node implementation ...

NODE_CLASSES = {
    "MyUtilityNode": MyUtilityNode,
}

NODE_DISPLAY_NAMES = {
    "MyUtilityNode": "🖥️🛠TechsToolz: My Utility Node",
}

Code Standards

• Type Hints: Full type annotation required
• Documentation: Comprehensive docstrings
• Error Handling: Graceful failure handling
• Logging: Structured logging throughout
• Testing: Pytest for unit tests

Tools

# Linting and formatting
ruff check --fix .
ruff format .

# Type checking
mypy .

# Testing
pytest

📊 Dependency Report Example

============================================================
ComfyUI-TechsToolz Dependency Report
============================================================
Python files scanned: 3
Total unique dependencies: 8
Available dependencies: 6
Missing dependencies: 2

✅ Available Dependencies:
------------------------------
  ✓ numpy
  ✓ piexif
  ✓ PIL
  ✓ folder_paths
  ✓ comfy
  ✓ json

❌ Missing Dependencies:
------------------------------
  ✗ some_package
  ✗ another_package

Installation suggestions:
pip install some_package another_package
============================================================

🤝 Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Update documentation
6. Submit a pull request

📄 License

GNU General Public License v3.0

🙏 Acknowledgments

• ComfyUI community for the excellent platform
• ComfyUI Manager for the integration framework
• All contributors and users of this project

📞 Support

• GitHub Issues: Report bugs or request features
• Discussions: Community support and questions

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