diff --git a/lib/galaxy/tool_util/toolbox/__init__.py b/lib/galaxy/tool_util/toolbox/__init__.py
index 5d220663c01..34c2070b09f 100644
--- a/lib/galaxy/tool_util/toolbox/__init__.py
+++ b/lib/galaxy/tool_util/toolbox/__init__.py
@@ -1,6 +1,9 @@
 """API for this module containing functionality related to the toolbox."""
 
-from .base import AbstractToolBox
+from .base import (
+    AbstractToolBox,
+    AbstractToolTagManager,
+)
 from .panel import (
     panel_item_types,
     ToolSection,
@@ -9,6 +12,7 @@ from .panel import (
 
 __all__ = (
     "AbstractToolBox",
+    "AbstractToolTagManager",
     "panel_item_types",
     "ToolSection",
     "ToolSectionLabel",
diff --git a/lib/galaxy/tool_util/toolbox/base.py b/lib/galaxy/tool_util/toolbox/base.py
index a27e230a145..af818e13630 100644
--- a/lib/galaxy/tool_util/toolbox/base.py
+++ b/lib/galaxy/tool_util/toolbox/base.py
@@ -24,11 +24,6 @@ from galaxy.exceptions import (
     ObjectNotFound,
     RequestParameterInvalidException,
 )
-from galaxy.tool_util.deps import (
-    build_dependency_manager,
-    NullDependencyManager,
-)
-from galaxy.tool_util.loader_directory import looks_like_a_tool
 from galaxy.util import (
     etree,
     ExecutionTimer,
@@ -52,7 +47,6 @@ from .parser import (
     ensure_tool_conf_item,
     get_toolbox_parser,
 )
-from .tags import tool_tag_manager
 from .views.edam import (
     EdamPanelMode,
     EdamToolPanelView,
@@ -177,7 +171,7 @@ class AbstractToolBox(Dictifiable, ManagesIntegratedToolPanelMixin):
         self._tool_watcher = self.app.watchers.tool_watcher
         self._tool_config_watcher = self.app.watchers.tool_config_watcher
         self._filter_factory = FilterFactory(self)
-        self._tool_tag_manager = tool_tag_manager(app)
+        self._tool_tag_manager = self.tool_tag_manager()
         self._init_tools_from_configs(config_filenames)
 
         if self.app.name == "galaxy" and self._integrated_tool_panel_config_has_contents: