# KDL Schema Specification ## Example ```kdl document description="KDL Schema KDL schema in KDL" schema-url="https://github.com/zkat/kdl" { node "document" { prop "schema-url" type="url" prop "description" type="string" children id="node-children" { node "node" id="node" { value description="name of the node" type="string" prop "description" type="string" prop "id" type="string" prop "ref" type="string" children { node "prop" description="node property key/value pair" { prop "id" type="string" prop "ref" type="string" value description="property key" type="string" prop "type" type="string" prop "description" type="string" } node "value" description="one or more direct node values" { prop "id" type="string" prop "ref" type="string" prop "description" type="string" prop "type" type="string" } node "children" { prop "id" type="string" prop "ref" type="string" prop "description" type="string" children ref="node-children" } } } } } } ```