Maybe?

lib/galaxy/celery/tasks.py

@@ -77,7 +77,7 @@ def setup_data_table_manager(app):
 @lru_cache
 def cached_create_tool_from_representation(app: MinimalManagerApp, raw_tool_source: str):
     return create_tool_from_representation(
-        app=app, raw_tool_source=raw_tool_source, tool_dir="", tool_source_class="XmlToolSource"
+        app=app, raw_tool_source=raw_tool_source, tool_source_class="XmlToolSource"
     )
 
 

lib/galaxy/tools/__init__.py

@@ -1129,6 +1129,7 @@ def parse(self, tool_source: ToolSource, guid: Optional[str] = None, dynamic: bo
             version_cmd_interpreter = tool_source.parse_version_command_interpreter()
             if version_cmd_interpreter:
                 executable = self.version_string_cmd.split()[0]
+                assert self.tool_dir is not None
                 abs_executable = os.path.abspath(os.path.join(self.tool_dir, executable))
                 command_line = self.version_string_cmd.replace(executable, abs_executable, 1)
                 self.version_string_cmd = f"{version_cmd_interpreter} {command_line}"
@@ -1267,6 +1268,7 @@ def __parse_legacy_features(self, tool_source: ToolSource):
                     # map hook to function
                     self.hook_map[key] = value
             file_name = code_elem.get("file")
+            assert self.tool_dir is not None
             code_path = os.path.join(self.tool_dir, file_name)
             if self._allow_code_files:
                 with open(code_path) as f:
@@ -1349,6 +1351,7 @@ def tests(self):
     def _repository_dir(self):
         """If tool shed installed tool, the base directory of the repository installed."""
         if getattr(self, "tool_shed", None):
+            assert self.tool_dir is not None
             tool_dir = Path(self.tool_dir)
             for repo_dir in itertools.chain([tool_dir], tool_dir.parents):
                 if repo_dir.name == self.repository_name and repo_dir.parent.name == self.installed_changeset_revision: