Add Tag To Subject
Attach a tag to a subject (resource, role, app instance, workflow, or guidance).
Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Body
---- Polymorphic tag attach ----
TagSubjectType is the kind of entity a tag is attached to. Mirrors the DB tag_subject_type enum and keys the polymorphic tag-subject RPCs that replace the per-subject tag-attach RPCs.
Deliberately distinct from AccessRelationshipSubjectType: the two overlap but diverge (tags add workflow/guidance; owners add team) and back separate DB enums. Unifying them would trade enum type-safety for runtime subset validation.
TAG_SUBJECT_TYPE_UNSPECIFIED, TAG_SUBJECT_TYPE_WORKFLOW, TAG_SUBJECT_TYPE_GUIDANCE, TAG_SUBJECT_TYPE_APP_INSTANCE, TAG_SUBJECT_TYPE_RESOURCE, TAG_SUBJECT_TYPE_ENTITLEMENT Response
Success
The subject's resulting tag set.

