ruby-json-schema/json-schema

{
    "$schema" : "http://json-schema.org/draft-01/hyper-schema#",
    "id" : "http://json-schema.org/draft-01/schema#",
    "type" : "object",
    
    "properties" : {
        "type" : {
            "type" : ["string", "array"],
            "items" : {
                "type" : ["string", {"$ref" : "#"}]
            },
            "optional" : true,
            "default" : "any"
        },
        
        "properties" : {
            "type" : "object",
            "additionalProperties" : {"$ref" : "#"},
            "optional" : true,
            "default" : {}
        },
        
        "items" : {
            "type" : [{"$ref" : "#"}, "array"],
            "items" : {"$ref" : "#"},
            "optional" : true,
            "default" : {}
        },
        
        "optional" : {
            "type" : "boolean",
            "optional" : true,
            "default" : false
        },
        
        "additionalProperties" : {
            "type" : [{"$ref" : "#"}, "boolean"],
            "optional" : true,
            "default" : {}
        },
        
        "requires" : {
            "type" : ["string", {"$ref" : "#"}],
            "optional" : true
        },
        
        "minimum" : {
            "type" : "number",
            "optional" : true
        },
        
        "maximum" : {
            "type" : "number",
            "optional" : true
        },
        
        "minimumCanEqual" : {
            "type" : "boolean",
            "optional" : true,
            "requires" : "minimum",
            "default" : true
        },
        
        "maximumCanEqual" : {
            "type" : "boolean",
            "optional" : true,
            "requires" : "maximum",
            "default" : true
        },
        
        "minItems" : {
            "type" : "integer",
            "optional" : true,
            "minimum" : 0,
            "default" : 0
        },
        
        "maxItems" : {
            "type" : "integer",
            "optional" : true,
            "minimum" : 0
        },
        
        "pattern" : {
            "type" : "string",
            "optional" : true,
            "format" : "regex"
        },
        
        "minLength" : {
            "type" : "integer",
            "optional" : true,
            "minimum" : 0,
            "default" : 0
        },
        
        "maxLength" : {
            "type" : "integer",
            "optional" : true
        },
        
        "enum" : {
            "type" : "array",
            "optional" : true,
            "minItems" : 1
        },
        
        "title" : {
            "type" : "string",
            "optional" : true
        },
        
        "description" : {
            "type" : "string",
            "optional" : true
        },
        
        "format" : {
            "type" : "string",
            "optional" : true
        },
        
        "contentEncoding" : {
            "type" : "string",
            "optional" : true
        },
        
        "default" : {
            "type" : "any",
            "optional" : true
        },
        
        "maxDecimal" : {
            "type" : "integer",
            "optional" : true,
            "minimum" : 0
        },
        
        "disallow" : {
            "type" : ["string", "array"],
            "items" : {"type" : "string"},
            "optional" : true
        },
        
        "extends" : {
            "type" : [{"$ref" : "#"}, "array"],
            "items" : {"$ref" : "#"},
            "optional" : true,
            "default" : {}
        }
    },
    
    "optional" : true,
    "default" : {}
}