{
  "version": "1.0",
  "patterns": [
    {
      "hex": "FFD8FF",
      "type": "image",
      "mime": "image/jpeg",
      "description": "JPEG image",
      "confidence": 1.0,
      "offset": 0
    },
    {
      "hex": "INVALID_HEX_VALUE",
      "type": "broken", 
      "mime": "invalid/type",
      "description": "This should fail",
      "confidence": 1.0,
      "offset": 0
    },
    {
      "missing_hex": "value",
      "type": "text",
      "description": "Missing hex field"
    }
  ]
}