Validate final registered sequence identities

sequence_identity.go

@@ -25,8 +25,8 @@ func SequenceAnyMappingKey() SequenceSelectorSegment {
 }
 
 // SequenceIdentity records the identity fields used for strict sequence
-// composition and identified-record parent lookup. It does not add final-result
-// identity validation; that check remains the application's responsibility.
+// composition, identified-record parent lookup, and final typed-result
+// validation during loading.
 type SequenceIdentity struct {
 	exactPath      bool
 	path           Path
@@ -34,9 +34,9 @@ type SequenceIdentity struct {
 	identityFields []string
 }
 
-// SequenceIdentityAt registers identity fields at an exact mapping path. The
-// path and fields are copied; invalid paths and empty field sets are reported
-// during load validation.
+// SequenceIdentityAt registers an exact mapping path for strict-composition,
+// inheritance, and final typed-result identity checks. The path and fields are
+// copied; invalid paths and empty field sets are reported during load validation.
 func SequenceIdentityAt(path Path, fields ...string) SequenceIdentity {
 	return SequenceIdentity{
 		exactPath:      true,
@@ -46,8 +46,9 @@ func SequenceIdentityAt(path Path, fields ...string) SequenceIdentity {
 }
 
 // SequenceIdentityMatching registers identity fields at destinations matched by
-// selector. Literal and wildcard selector segments are copied. Empty field sets
-// are reported during load validation.
+// selector for strict composition, inheritance, and final typed-result checks.
+// Literal and wildcard selector segments are copied. Empty field sets are
+// reported during load validation.
 func SequenceIdentityMatching(selector SequenceSelector, fields ...string) SequenceIdentity {
 	return SequenceIdentity{
 		selector:       append(SequenceSelector(nil), selector...),