Keywords & Reserved Words

LODE has a small set of reserved words and constants used in schemas and the Vein binary format.

Schema Keywords

These are literal values that must appear in a .lode schema file:

Keyword	Context	Value	Description
`schema`	Top-level property	`"lode"`	Schema discriminator. Must be the literal string `"lode"`.
`version`	Top-level property	`number ≥ 1`	Schema major version.
`name`	Top-level property	`string`	Human-readable structure name.
`fields`	Top-level property	`array`	Ordered list of field definitions.
`id`	Field property	`1–255`	Numeric binary key.
`type`	Field property	Type string	Wire type identifier.
`required`	Field property	`boolean`	Whether the field must be present. Defaults to `true`.

These are the valid values for a field’s type property:

Keyword	Description
`string`	UTF-8 encoded text
`bool`	Boolean value (`true` / `false`)
`string[]`	Array of UTF-8 strings
`map<string,string>`	String-to-string key-value map

The following type strings are reserved for future use and will cause a validation error if used: