Meta
Explanation
@meta=key:value defines additional metadata entries beyond the built-in meta keys such as @date, @author, @version, @status, @record_id, or @review_date.
These values are stored in the same document metadata object and can be referenced via @@ref=meta:key. For built-in keys, the direct form such as @author:... or @status:... is recommended for clarity.
Examples
@meta=department:Platform Engineering
@meta=doc_type:RCA