diff --git a/expected_workflows/flow_hybrid_expected.py b/expected_workflows/flow_hybrid_expected.py
index a926278..6c97837 100644
--- a/expected_workflows/flow_hybrid_expected.py
+++ b/expected_workflows/flow_hybrid_expected.py
@@ -88,7 +88,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
@@ -153,7 +153,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
@@ -218,7 +218,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
diff --git a/expected_workflows/flow_parallel_expected.py b/expected_workflows/flow_parallel_expected.py
index eee0ad6..6f737cb 100644
--- a/expected_workflows/flow_parallel_expected.py
+++ b/expected_workflows/flow_parallel_expected.py
@@ -88,7 +88,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
@@ -152,7 +152,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
@@ -216,7 +216,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
diff --git a/expected_workflows/flow_sequential_expected.py b/expected_workflows/flow_sequential_expected.py
index a9649bf..8612cd2 100644
--- a/expected_workflows/flow_sequential_expected.py
+++ b/expected_workflows/flow_sequential_expected.py
@@ -88,7 +88,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
@@ -153,7 +153,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output
@@ -218,7 +218,7 @@ class test_repo_test_branch_1234567890:
                     block_error = {
                         "code": type(e).__name__,
                         "description": str(e),
-                        "details": {}
+                        "details": {"cause": str(getattr(e, "cause", "No additional details"))}
                     }
                     workflow_output["status"] = "failed"
                 # Collect block output