diff --git a/lib/galaxy/managers/libraries.py b/lib/galaxy/managers/libraries.py
index 85f4758380c..583a9c1109e 100644
--- a/lib/galaxy/managers/libraries.py
+++ b/lib/galaxy/managers/libraries.py
@@ -255,9 +255,7 @@ class LibraryManager:
         allowed_library_add_ids = prefetched_ids.get("allowed_library_add_ids", None) if prefetched_ids else None
         allowed_library_modify_ids = prefetched_ids.get("allowed_library_modify_ids", None) if prefetched_ids else None
         allowed_library_manage_ids = prefetched_ids.get("allowed_library_manage_ids", None) if prefetched_ids else None
-        library_dict = library.to_dict(
-            view="element", value_mapper={"id": trans.security.encode_id, "root_folder_id": trans.security.encode_id}
-        )
+        library_dict = library.to_dict(view="element")
         library_dict["public"] = False if (restricted_library_ids and library.id in restricted_library_ids) else True
         library_dict["create_time_pretty"] = pretty_print_time_interval(library.create_time, precise=True)
         if not trans.user_is_admin:
diff --git a/lib/galaxy/model/__init__.py b/lib/galaxy/model/__init__.py
index 39b2aedd152..26e7773e137 100644
--- a/lib/galaxy/model/__init__.py
+++ b/lib/galaxy/model/__init__.py
@@ -5249,8 +5249,6 @@ class Library(Base, Dictifiable, HasName, Serializable):
         We prepend an F to folders.
         """
         rval = super().to_dict(view=view, value_mapper=value_mapper)
-        if "root_folder_id" in rval:
-            rval["root_folder_id"] = f"F{str(rval['root_folder_id'])}"
         return rval
 
     def get_active_folders(self, folder, folders=None):
diff --git a/lib/galaxy/schema/fields.py b/lib/galaxy/schema/fields.py
index 0e833c0c1dd..40eec4f2b12 100644
--- a/lib/galaxy/schema/fields.py
+++ b/lib/galaxy/schema/fields.py
@@ -104,7 +104,7 @@ class EncodedLibraryFolderDatabaseIdField(str, BaseDatabaseIdField):
             raise TypeError("String required")
         if not v.startswith("F"):
             raise TypeError("Invalid library folder ID. Folder IDs must start with an 'F'")
-        cls.ensure_valid(v)
+        cls.ensure_valid(v[1:])
         return cls(v)
 
     @classmethod
diff --git a/lib/galaxy/schema/schema.py b/lib/galaxy/schema/schema.py
index e172da9d230..7466e187f6b 100644
--- a/lib/galaxy/schema/schema.py
+++ b/lib/galaxy/schema/schema.py
@@ -2407,7 +2407,7 @@ class LibraryLegacySummary(Model):
         title="Description",
         description="A short text describing the contents of the Library.",
     )
-    root_folder_id: LibraryFolderDatabaseIdField = Field(
+    root_folder_id: EncodedLibraryFolderDatabaseIdField = Field(
         ...,
         title="Root Folder ID",
         description="Encoded ID of the Library's base folder.",
diff --git a/lib/galaxy/webapps/galaxy/services/libraries.py b/lib/galaxy/webapps/galaxy/services/libraries.py
index 36d903362a7..938898f8508 100644
--- a/lib/galaxy/webapps/galaxy/services/libraries.py
+++ b/lib/galaxy/webapps/galaxy/services/libraries.py
@@ -74,13 +74,12 @@ class LibrariesService(ServiceBase, ConsumesModelStores):
         for library in query:
             library_dict = self.library_manager.get_library_dict(trans, library, prefetched_ids)
             libraries.append(LibrarySummary(**library_dict))
-        return LibrarySummaryList.construct(__root__=libraries)
+        return LibrarySummaryList(__root__=libraries)
 
     def show(self, trans, id: DecodedDatabaseIdField) -> LibrarySummary:
         """Returns detailed information about a library."""
         library = self.library_manager.get(trans, id)
-        library_dict = self.library_manager.get_library_dict(trans, library)
-        return LibrarySummary.construct(**library_dict)
+        return self._to_summary(trans, library)
 
     def create(self, trans, payload: CreateLibraryPayload) -> LibrarySummary:
         """Creates a new library.
@@ -328,11 +327,9 @@ class LibrariesService(ServiceBase, ConsumesModelStores):
         trans.sa_session.refresh(library)
         # Copy the permissions to the root folder
         trans.app.security_agent.copy_library_permissions(trans, library, library.root_folder)
-        item = library.to_dict(
-            view="element", value_mapper={"id": trans.security.encode_id, "root_folder_id": trans.security.encode_id}
-        )
-        return LibraryLegacySummary.construct(**item)
+        item = library.to_dict(view="element")
+        return LibraryLegacySummary(**item)
 
     def _to_summary(self, trans, library) -> LibrarySummary:
         library_dict = self.library_manager.get_library_dict(trans, library)
-        return LibrarySummary.construct(**library_dict)
+        return LibrarySummary(**library_dict)
diff --git a/lib/galaxy_test/api/test_libraries.py b/lib/galaxy_test/api/test_libraries.py
index 9fb218ee338..816efff4cad 100644
--- a/lib/galaxy_test/api/test_libraries.py
+++ b/lib/galaxy_test/api/test_libraries.py
@@ -47,6 +47,12 @@ class TestLibrariesApi(ApiTestCase):
         ld = self.library_populator.get_library_contents_with_path(library_summary["id"], "/my cool name")
         assert ld
 
+    @requires_new_library
+    def test_index(self):
+        self.library_populator.new_library("TestIndexLibraries")
+        libraries = self.library_populator.get_libraries()
+        assert len(libraries) > 0
+
     @requires_new_library
     def test_delete(self):
         library = self.library_populator.new_library("DeleteTestLibrary")