### Model Descriptor JSON Format

Source: https://github.com/lmstudio-ai/model-catalog/blob/main/README.md

A single JSON file describes a model, its authors, additional resources, and available model files. Version 0.0.1 captures model size, architecture, file format, and quantization format.

```json
{
  "modelName": "guanaco-7b",
  "version": "0.0.1",
  "authors": [
    "Tim Dettmers"
  ],
  "description": "Guanaco is a 7B parameter model based on Llama.",
  "sources": [
    {
      "name": "Hugging Face",
      "url": "https://huggingface.co/TheBloke/guanaco-7B-GGML"
    }
  ],
  "modelFiles": [
    {
      "name": "guanaco-7b.ggmlv3.q4_0.bin",
      "provider": "TheBloke",
      "size": "4.08 GB",
      "format": "ggml",
      "quantization": "q4_0"
    }
  ]
}
```

--------------------------------

### Catalog JSON Generation and Validation

Source: https://github.com/lmstudio-ai/model-catalog/blob/main/README.md

A Github action merges individual model JSON files into a single catalog.json. Another action validates these files against a JSON schema. The `validate.py` tool or `createCatalog.py` script can be used for local validation.

```python
import json
import os

def validate_model_file(filepath):
    with open(filepath, 'r') as f:
        model_data = json.load(f)
    # Add validation logic here based on the schema
    print(f"Validating {filepath}...")
    return True

def create_catalog(models_dir='models', output_file='catalog.json'):
    catalog = []
    for filename in os.listdir(models_dir):
        if filename.endswith('.json'):
            filepath = os.path.join(models_dir, filename)
            if validate_model_file(filepath):
                with open(filepath, 'r') as f:
                    catalog.append(json.load(f))
    with open(output_file, 'w') as f:
        json.dump(catalog, f, indent=2)
    print(f"Catalog created at {output_file}")

if __name__ == "__main__":
    # Example usage:
    # Create dummy model files for testing
    if not os.path.exists('models'):
        os.makedirs('models')
    with open('models/guanaco-7b.json', 'w') as f:
        json.dump({"modelName": "guanaco-7b"}, f)
    with open('models/samantha-1.1-llama-7b.json', 'w') as f:
        json.dump({"modelName": "samantha-1.1-llama-7b"}, f)

    create_catalog()

```

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