diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 095343f..0b632e4 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -82,6 +82,14 @@ repos:
       - id: markdownlint
   - repo: local
     hooks:
+      - id: parsetest
+        name: "Generate AirOS Fixtures"
+        entry: script/run-in-env.sh python script/generate_ha_fixture.py
+        language: script
+        types: [python]
+        # Run when Python changes (to refresh against code changes) and when userdata JSON changes
+        files: ^(airos|tests|script)/.+\.py$|^fixtures/userdata/.+\.json$
+        pass_filenames: false
       - id: pytest
         name: "pytest"
         entry: script/run-in-env.sh pytest
diff --git a/airos/airos8.py b/airos/airos8.py
index 6afbd8e..18beeae 100644
--- a/airos/airos8.py
+++ b/airos/airos8.py
@@ -193,7 +193,8 @@ async def login(self) -> bool:
             _LOGGER.info("Login task was cancelled")
             raise
 
-    def derived_data(self, response: dict[str, Any]) -> dict[str, Any]:
+    @staticmethod
+    def derived_data(response: dict[str, Any]) -> dict[str, Any]:
         """Add derived data to the device response."""
         derived: dict[str, Any] = {
             "station": False,
diff --git a/script/generate_ha_fixture.py b/script/generate_ha_fixture.py
index 60276de..74efc5a 100644
--- a/script/generate_ha_fixture.py
+++ b/script/generate_ha_fixture.py
@@ -45,7 +45,7 @@ def generate_airos_fixtures() -> None:
                 with open(base_fixture_path, encoding="utf-8") as source:
                     source_data = json.loads(source.read())
 
-                derived_data = AirOS.derived_data(None, source_data)  # type: ignore[arg-type]
+                derived_data = AirOS.derived_data(source_data)
                 new_data = AirOSData.from_dict(derived_data)
 
                 with open(new_fixture_path, "w", encoding="utf-8") as new:
diff --git a/script/mashumaro-step-debug.py b/script/mashumaro-step-debug.py
index 33f816e..8f201be 100644
--- a/script/mashumaro-step-debug.py
+++ b/script/mashumaro-step-debug.py
@@ -12,6 +12,7 @@
 if _project_root_dir not in sys.path:
     sys.path.append(_project_root_dir)
 
+from airos.airos8 import AirOS  # noqa: E402
 from airos.data import AirOS8Data, Interface, Remote, Station, Wireless  # noqa: E402
 
 logging.basicConfig(level=logging.DEBUG, stream=sys.stdout)
@@ -71,14 +72,17 @@ def main() -> None:
             interface_obj = Interface.from_dict(interface_data)  # noqa: F841
             _LOGGER.info("         Success! Interface is valid.")
 
+        _LOGGER.info("Deriving AirOS8Data from object...")
+        derived_data = AirOS.derived_data(data)
+
         _LOGGER.info("Attempting to deserialize full AirOS8Data object...")
-        airos_data_obj = AirOS8Data.from_dict(data)  # noqa: F841
+        airos_data_obj = AirOS8Data.from_dict(derived_data)  # noqa: F841
         _LOGGER.info("Success! Full AirOS8Data object is valid.")
 
-    except Exception as e:
+    except Exception:
         _LOGGER.info("\n------------------")
         _LOGGER.info("CRITICAL ERROR FOUND!")
-        _LOGGER.info("The program failed at: %s", e)
+        _LOGGER.exception("The program failed")
         _LOGGER.info("------------------\n")