@modoki/engine / index / REF_FIELDS_BY_TRAIT
Variable: REF_FIELDS_BY_TRAIT
constREF_FIELDS_BY_TRAIT:Record<string,string[]>
Asset-reference fields, keyed by the trait they live on. A value in one of these fields must be a GUID or an external URL — never a project-internal asset path (/games/x/foo.mesh.json). This is the single source of truth; editor/scene/serialize.ts imports it for its save-time guard.