diff --git a/src/engines/json/attributes.js b/src/engines/json/attributes.js
index ee9b490..34174ec 100644
--- a/src/engines/json/attributes.js
+++ b/src/engines/json/attributes.js
@@ -2,278 +2,4 @@
  * Attributes
  * --------------------
  */
-Validation.prototype.attributes = {
-
-  /**
-   * Required
-   */
-  required: function requiredConstructor() {
-
-    return function required(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (attributeValue && isUndefined(propertyValue)) {
-        return callback(true);
-      } else {
-        return callback();
-      }
-    };
-
-  },
-
-  /**
-   * Type
-   */
-  type: function typeConstructor() {
-    
-    var types = {
-      'string': isString,
-      'number': isNumber,
-      'function': isFunction,
-      'boolean': isBoolean,
-      'object': isObject,
-      'array': isArray,
-      'integer': isInteger,
-      'int': isInteger,
-      'null': isNull,
-      'any': returnTrue
-    };
-
-    return function type(property, propertyValue, attributeValue, propertyAttributes, callback) {
-
-      /**
-       * {
-       *   type: ['string', 'number']
-       * }
-       */
-      if (isArray(attributeValue)) {
-
-        var noError = attributeValue.some(function(type) {
-          return types[type](propertyValue);
-        });
-
-        return (noError) ? callback() : callback(true);
-
-      /**
-       * {
-       *   type: 'string'
-       * }
-       */
-      } else {
-        if (!hasProperty(type, attributeValue)) {
-          return callback('Type ‘' + type + '’ is not supported.');
-        }
-        return types[attributeValue](propertyValue) ? callback() : callback(true);
-      }
-
-    };
-
-  },
-
-  /**
-   * Format
-   */
-  format: function formatConstructor() {
-
-    /**
-     * Formats
-     */
-    var formats = {
-      'alpha': function(input) {
-        return (typeof input === 'string' && input.match(/^[a-zA-Z]+$/));
-      },
-      'alphanumeric': function(input) {
-        return (typeof input === 'string' && /^[a-zA-Z0-9]+$/.test(input)) || typeof input === 'number';
-      },
-      'ipv4': function(input) {
-        return typeof input === 'string' && input.match(/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/);
-      },
-      'ipv6': function(input) {
-        return typeof input === 'string' && input.match(/(?:(?:[a-f\d]{1,4}:)*(?:[a-f\d]{1,4}|\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})|(?:(?:[a-f\d]{1,4}:)*[a-f\d]{1,4})?::(?:(?:[a-f\d]{1,4}:)*(?:[a-f\d]{1,4}|\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}))?)/);
-      },
-      'ip': function(input) {
-        return formats.ipv4(input) || formats.ipv6;
-      },
-      'email': function(input) {
-        return typeof input === 'string' && input.match(/^(?:[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+\.)*[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+@(?:(?:(?:[a-zA-Z0-9](?:[a-zA-Z0-9\-](?!\.)){0,61}[a-zA-Z0-9]?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9\-](?!$)){0,61}[a-zA-Z0-9]?)|(?:\[(?:(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\.){3}(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\]))$/);
-      },
-      'url': function(input) {
-        return typeof input === 'string' && input.match(/^(?:(?:ht|f)tp(?:s?)\:\/\/|~\/|\/)?(?:\w+:\w+@)?((?:(?:[-\w\d{1-3}]+\.)+(?:com|org|cat|coop|int|pro|tel|xxx|net|gov|mil|biz|info|mobi|name|aero|jobs|edu|co\.uk|ac\.uk|it|fr|tv|museum|asia|local|travel|[a-z]{2})?)|((\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)(\.(\b25[0-5]\b|\b[2][0-4][0-9]\b|\b[0-1]?[0-9]?[0-9]\b)){3}))(?::[\d]{1,5})?(?:(?:(?:\/(?:[-\w~!$+|.,=]|%[a-f\d]{2})+)+|\/)+|\?|#)?(?:(?:\?(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=?(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)(?:&(?:[-\w~!$+|.,*:]|%[a-f\d{2}])+=?(?:[-\w~!$+|.,*:=]|%[a-f\d]{2})*)*)*(?:#(?:[-\w~!$ |\/.,*:;=]|%[a-f\d]{2})*)?$/);
-      },
-      'date': function(input) {
-        return Object.prototype.toString.call(input) === '[object Date]';
-      },
-      'decimal': function(input) {
-        return /^[0-9]+(\.[0-9]{1,2})?$/.test(input);
-      },
-      'int': function(input) {
-        return /^-?[0-9]+$/.test(input);
-      },
-      'percentage': function(input) {
-        return (typeof input == 'string' && input.match(/^-?[0-9]{0,2}(\.[0-9]{1,2})?$|^-?(100)(\.[0]{1,2})?$/)) || (input >= -100 && input <= 100);
-      },
-      'port': function(input) {
-        return /\:\d+/.test(input);
-      },
-      'regex': function(input) {
-        return input && input.test && input.exec;
-      },
-      'unsignedInt': function(input) {
-        return /^[0-9]+$/.test(input);
-      }
-    };
-
-    return function(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      return (formats[attributeValue](propertyValue)) ? callback() : callback(true);
-    };
-
-  },
-
-  /**
-   * MinLength
-   */
-  minLength: function minLengthConstructor() {
-    return function minLength(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isString(propertyValue) && propertyValue.length >= attributeValue) {
-        return callback();
-      } else {
-        return callback(true);
-      }
-    };
-  },
-
-  /**
-   * MaxLength
-   */
-  maxLength: function maxLengthConstructor() {
-    return function maxLength(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isString(propertyValue) && propertyValue.length <= attributeValue) {
-        return callback();
-      } else {
-        return callback(true);
-      }
-    };
-  },
-
-  /**
-   * Length
-   */
-  length: function lengthConstructor() {
-    return function length(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isString(propertyValue) && propertyValue.length === attributeValue) {
-        return callback();
-      } else {
-        return callback(true);
-      }
-    };
-  },
-
-  /**
-   * Enum
-   */
-  enum: function enumConstructor() {
-    return function enum(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      return (attributeValue.indexOf(propertyValue) === -1) ? callback(true) : callback();
-    };
-  },
-
-  /**
-   * Except
-   */
-  except: function exceptConstructor() {
-    return function except(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      return (attributeValue.indexOf(propertyValue) !== -1) ? callback(true) : callback();
-    };
-  },
-
-  /**
-   * Minimum
-   */
-  minimum: function minimumConstructor() {
-    return function minimum(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isNumber(propertyValue)) {
-        var condition = (propertyAttributes.exclusiveMinimum) ? propertyValue > attributeValue : propertyValue >= attributeValue;
-        return (condition) ? callback() : callback(true);
-      } else {
-        return callback(true);
-      }
-    };
-  },
-
-  /**
-   * Maximum
-   */
-  maximum: function maximumConstructor() {
-    return function maximum(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isNumber(propertyValue)) {
-        var condition = (propertyAttributes.exclusiveMaximum) ? propertyValue < attributeValue : propertyValue <= attributeValue;
-        return (condition) ? callback() : callback(true);
-      } else {
-        return callback(true);
-      }
-    };
-  },
-
-  /**
-   * Pattern
-   */
-  pattern: function patternConstructor() {
-    return function pattern(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isString(propertyValue) && !propertyValue.match(attributeValue)) {
-        return callback(true);
-      } else {
-        return callback();
-      }
-    };
-  },
-
-  /**
-   * MinItems
-   */
-  minItems: function minItemsConstructor() {
-    return function minItems(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isArray(propertyValue) && propertyValue.length >= attributeValue) {
-        return callback();
-      } else {
-        return callback(true);
-      }
-    };
-  },
-
-  /**
-   * MaxItems
-   */
-  maxItems: function maxItemsConstructor() {
-    return function maxItems(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isArray(propertyValue) && propertyValue.length <= attributeValue) {
-        return callback();
-      } else {
-        return callback(true);
-      }
-    };
-  },
-
-  /**
-   * UniqueItems
-   */
-  uniqueItems: function uniqueItemsConstructor() {
-    return function uniqueItems(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      return each(propertyValue, function(index, value, callback) {
-        return (propertyValue.indexOf(value) < index) ? callback(true) : callback();
-      }, callback);
-    };
-  },
-
-  /**
-   * DivisibleBy
-   */
-  divisibleBy: function divisibleByConstructor() {
-    return function divisibleBy(property, propertyValue, attributeValue, propertyAttributes, callback) {
-      if (isNumber(propertyValue) && (propertyValue % attributeValue === 0)) {
-        return callback();
-      } else {
-        return callback(true);
-      }
-    };
-  }
-
-};
-
+Validation.prototype.attributes = {};
\ No newline at end of file