Answer architecture round 1: a module's reads sits on its index entry or, for a source without an index, in the load that walks it, the note names default modules, the shipped modules are listed by name, datafiles drops its unused base, and item 195 files the builtins' second parse

data_test.go

@@ -63,7 +63,7 @@ func TestShippedDataCategories(t *testing.T) {
 	}
 }
 
-// TestShippedMiscCategories covers the locale-neutral data/misc folder: a proper
+// TestShippedMiscCategories covers the locale-neutral misc module: a proper
 // v4 UUID (version/variant nibbles fixed), a MAC address, and credit-card numbers
 // whose trailing {luhn()} check passes.
 func TestShippedMiscCategories(t *testing.T) {
@@ -467,8 +467,8 @@ func TestShippedTableCellsAreTrimmed(t *testing.T) {
 	}
 }
 
-// TestShippedNamespacedTree loads the whole data/ tree (not a single locale) and
-// reaches each locale through its folder segment: data/sv_SE/person -> sv_SE.person.
+// TestShippedNamespacedTree loads every shipped module and reaches each locale through its
+// folder segment: data/sv_SE/sv_SE/person.json -> sv_SE.person.
 func TestShippedNamespacedTree(t *testing.T) {
 	f := shipped(t, WithSeed(1))
 	for _, path := range []string{"sv_SE.person", "en_US.person", "sv_SE.address.locality"} {