{
    "$schema": "https://meta.json-schema.tools/",
    "title": "OpenRPC Specification Extension",
    "description": "A standard way to define OpenRPC Specification Extensions. This makes it easier to provide support for Specification Extensions in other tools.",
    "type": "object",
    "required": [
        "name",
        "schema",
        "openrpcExtension",
        "version"
    ],
    "properties": {
        "openrpcExtension": {
            "title": "openrpcExtensionVersion",
            "description": "**REQUIRED**. This string MUST be the semantic version number of the Specification that the document uses.",
            "type": "string",
            "enum": [
                "0.0.0-development"
            ]
        },
        "name": {
            "title": "specificationExtensionName",
            "description": "**REQUIRED** Name of the Specification Extension. MUST start with `x-`",
            "type": "string",
            "pattern": "^x-",
            "examples": [
                "x-foobarbaz"
            ]
        },
        "version": {
            "title": "specificationExtensionVersion",
            "description": "**REQUIRED**. The version of the Extension (which is distinct from the `openrpcExtension` version and implementation version).",
            "type": "string",
            "examples": [
                "0.0.1"
            ]
        },
        "required": {
            "title": "specificationExtensionRequired",
            "type": "boolean",
            "description": "wether or not this specification extension is required or not"
        },
        "restricted": {
            "title": "restrictedObjects",
            "description": "A list of object names to restrict the usage of the specification extension to.",
            "type": "array",
            "items": {
                "title": "restrictedObject",
                "description": "restricted object",
                "type": "string"
            }
        },
        "description": {
            "title": "specificationExtensionDescription",
            "type": "string",
            "description": "Markdown description describing the specification extension."
        },
        "summary": {
            "title": "specificationExtensionSummary",
            "type": "string",
            "description": "A short summary of what the specification extension is."
        },
        "schema": {
            "$ref": "https://meta.json-schema.tools"
        },
        "externalDocumentation": {
            "title": "specificationExtensionExternalDocumentationObject",
            "type": "object",
            "additionalProperties": false,
            "description": "Information about specification extension external documentation.",
            "required": [
                "url"
            ],
            "properties": {
                "description": {
                    "title": "specificationExtensionexternalDocumentationObjectDescription",
                    "description": "external documentation description.",
                    "type": "string"
                },
                "url": {
                    "title": "specificationExtensionexternalDocumentationObjectUrl",
                    "description": "external documentation description.",
                    "type": "string",
                    "format": "uri"
                }
            }
        }
    }
}