diff --git a/.github/workflows/schedule.yml b/.github/workflows/schedule.yml
index 905c811..4a03029 100644
--- a/.github/workflows/schedule.yml
+++ b/.github/workflows/schedule.yml
@@ -32,6 +32,8 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r requirements.txt
       - name: Run unit tests
+        env:
+          USER_DATA: "[]"
         run: python -m unittest discover -s tests -v
       - name: Test Douyin accessibility
         run: |
diff --git a/DouYinSparkFlow/core/tasks.py b/DouYinSparkFlow/core/tasks.py
index d310a38..bf19271 100644
--- a/DouYinSparkFlow/core/tasks.py
+++ b/DouYinSparkFlow/core/tasks.py
@@ -20,8 +20,6 @@ from utils.config import get_config, get_userData, normalize_unique_id, save_use
 from utils.logger import setup_logger
 
 
-config = get_config()
-user_data = get_userData()
 logger = setup_logger(level=logging.DEBUG)
 debug_artifacts_dir = Path("logs/debug_artifacts")
 debug_artifacts_dir.mkdir(parents=True, exist_ok=True)
diff --git a/DouYinSparkFlow/tests/test_config_contract.py b/DouYinSparkFlow/tests/test_config_contract.py
index 42cad1e..0b2361c 100644
--- a/DouYinSparkFlow/tests/test_config_contract.py
+++ b/DouYinSparkFlow/tests/test_config_contract.py
@@ -1,5 +1,7 @@
 import json
 import os
+import subprocess
+import sys
 import tempfile
 import unittest
 from pathlib import Path
@@ -27,6 +29,21 @@ class ConfigContractTests(unittest.TestCase):
             self.assertFalse(loaded["useProtocolSender"])
             self.assertTrue(loaded["persistentBrowserProfiles"]["enabled"])
 
+    def test_tasks_import_does_not_require_runtime_user_data(self):
+        source_root = Path(__file__).resolve().parents[1]
+        env = os.environ.copy()
+        env["GITHUB_ACTIONS"] = "true"
+        env.pop("USER_DATA", None)
+        result = subprocess.run(
+            [sys.executable, "-c", "import core.tasks"],
+            cwd=source_root,
+            env=env,
+            capture_output=True,
+            text=True,
+            timeout=30,
+        )
+        self.assertEqual(0, result.returncode, result.stderr)
+
     def test_profile_root_environment_override_wins(self):
         with patch.dict(os.environ, {"SPARKFLOW_BROWSER_PROFILE_ROOT": "/tmp/sparkflow-profiles"}):
             normalized = tasks._normalize_persistent_profile_config(config_module.DEFAULT_CONFIG)
diff --git a/DouYinSparkFlow/tests/test_deployment_contract.py b/DouYinSparkFlow/tests/test_deployment_contract.py
index 7531cca..25e327b 100644
--- a/DouYinSparkFlow/tests/test_deployment_contract.py
+++ b/DouYinSparkFlow/tests/test_deployment_contract.py
@@ -15,6 +15,7 @@ class DeploymentContractTests(unittest.TestCase):
         self.assertIn("working-directory: DouYinSparkFlow", text)
         self.assertIn("SPARKFLOW_BROWSER_PROFILE_ROOT", text)
         self.assertIn("SPARKFLOW_MANUAL_RUN", text)
+        self.assertIn('USER_DATA: "[]"', text)
         self.assertIn("path: DouYinSparkFlow/logs/", text)
 
     def test_github_actions_are_pinned_to_commit_shas(self):