{
	"$schema": "http://json-schema.org/draft-07/schema#",
	"$id": "https://raw.githubusercontent.com/WordPress/secure-custom-fields/trunk/schemas/internal-properties.schema.json",
	"title": "SCF Internal Properties",
	"description": "Internal properties present in SCF entities. These properties are managed by the system and appear in GET/LIST/CREATE/UPDATE/IMPORT/DUPLICATE outputs, but are stripped during EXPORT.",
	"definitions": {
		"ID": {
			"type": "integer",
			"minimum": 1,
			"description": "WordPress post ID. Present in GET/LIST/CREATE/UPDATE/IMPORT/DUPLICATE outputs."
		},
		"_valid": {
			"type": [ "boolean", "integer" ],
			"description": "Validation cache flag. Indicates whether the entity passed validation. Can be boolean or integer (0/1)."
		},
		"local": {
			"type": "string",
			"enum": [ "json" ],
			"description": "Source indicator. Present only if entity is locally-defined (e.g., from local JSON files). Stripped during export."
		},
		"not_registered": {
			"type": "boolean",
			"description": "Flag indicating that this entity could not be registered because another one with the same key already exists. Present only when registration was skipped."
		},
		"prefix": {
			"type": "string",
			"description": "Internal prefix used for field naming during rendering."
		},
		"value": {
			"description": "Current field value. Type varies by field type."
		},
		"id": {
			"type": "string",
			"description": "HTML element ID attribute for the field input."
		},
		"class": {
			"type": "string",
			"description": "HTML element class attribute for the field input."
		},
		"_name": {
			"type": "string",
			"description": "Internal field name used during form processing."
		},
		"allow_in_bindings": {
			"type": "boolean",
			"description": "Whether the field value can be used in block bindings."
		},
		"fieldInternalProperties": {
			"type": "object",
			"description": "Internal properties for field entities",
			"properties": {
				"ID": { "$ref": "#/definitions/ID" },
				"_valid": { "$ref": "#/definitions/_valid" },
				"prefix": { "$ref": "#/definitions/prefix" },
				"value": { "$ref": "#/definitions/value" },
				"id": { "$ref": "#/definitions/id" },
				"class": { "$ref": "#/definitions/class" },
				"_name": { "$ref": "#/definitions/_name" },
				"allow_in_bindings": { "$ref": "#/definitions/allow_in_bindings" }
			}
		},
		"internalProperties": {
			"type": "object",
			"description": "Internal properties for internal post types (field groups, taxonomies, options pages)",
			"properties": {
				"ID": { "$ref": "#/definitions/ID" },
				"_valid": { "$ref": "#/definitions/_valid" },
				"local": { "$ref": "#/definitions/local" },
				"not_registered": { "$ref": "#/definitions/not_registered" }
			}
		}
	}
}