diff --git a/ariadne/services/cluster_state_relationships.py b/ariadne/services/cluster_state_relationships.py
index 0edb5bc..e36fd84 100644
--- a/ariadne/services/cluster_state_relationships.py
+++ b/ariadne/services/cluster_state_relationships.py
@@ -38,12 +38,7 @@ def _pvc_top(entries: list[dict[str, Any]]) -> list[dict[str, Any]]:
     return output
 
 
-def _namespace_context(
-    namespace_pods: list[dict[str, Any]],
-    namespace_nodes: list[dict[str, Any]],
-    namespace_capacity: list[dict[str, Any]],
-    namespace_baseline: dict[str, dict[str, dict[str, float]]],
-) -> list[dict[str, Any]]:
+def _namespace_context(namespace_pods: list[dict[str, Any]], namespace_nodes: list[dict[str, Any]], namespace_capacity: list[dict[str, Any]], namespace_baseline: dict[str, dict[str, dict[str, float]]]) -> list[dict[str, Any]]:
     node_map = {entry.get("namespace"): entry for entry in namespace_nodes if isinstance(entry, dict)}
     cap_map = {entry.get("namespace"): entry for entry in namespace_capacity if isinstance(entry, dict)}
     output: list[dict[str, Any]] = []
@@ -152,11 +147,7 @@ def _node_workload_map(workloads: list[dict[str, Any]]) -> dict[str, dict[str, i
     return mapping
 
 
-def _node_workloads_top(
-    workload_map: dict[str, dict[str, int]],
-    limit_nodes: int = _NODE_WORKLOAD_LIMIT,
-    limit_workloads: int = _NODE_WORKLOAD_TOP,
-) -> list[dict[str, Any]]:
+def _node_workloads_top(workload_map: dict[str, dict[str, int]], limit_nodes: int = _NODE_WORKLOAD_LIMIT, limit_workloads: int = _NODE_WORKLOAD_TOP) -> list[dict[str, Any]]:
     output: list[dict[str, Any]] = []
     for node, workloads in workload_map.items():
         if not isinstance(node, str) or not node or not isinstance(workloads, dict):
@@ -240,11 +231,7 @@ def _build_lexicon() -> dict[str, Any]:
     return {"terms": terms, "aliases": aliases}
 
 
-def _top_named_entries(
-    entries: list[dict[str, Any]],
-    name_key: str,
-    limit: int,
-) -> list[dict[str, Any]]:
+def _top_named_entries(entries: list[dict[str, Any]], name_key: str, limit: int) -> list[dict[str, Any]]:
     output: list[dict[str, Any]] = []
     for entry in entries or []:
         if not isinstance(entry, dict):
@@ -295,10 +282,7 @@ def _cross_node_metric_top(metrics: dict[str, Any], node_context: list[dict[str,
     return output
 
 
-def _cross_namespace_metric_top(
-    metrics: dict[str, Any],
-    namespace_context: list[dict[str, Any]],
-) -> list[dict[str, Any]]:
+def _cross_namespace_metric_top(metrics: dict[str, Any], namespace_context: list[dict[str, Any]]) -> list[dict[str, Any]]:
     top = metrics.get("namespace_top") if isinstance(metrics.get("namespace_top"), dict) else {}
     namespace_map = {
         entry.get("namespace"): entry
@@ -331,12 +315,7 @@ def _cross_namespace_metric_top(
     return output
 
 
-def _build_cross_stats(
-    metrics: dict[str, Any],
-    node_context: list[dict[str, Any]],
-    namespace_context: list[dict[str, Any]],
-    workloads: list[dict[str, Any]],
-) -> dict[str, Any]:
+def _build_cross_stats(metrics: dict[str, Any], node_context: list[dict[str, Any]], namespace_context: list[dict[str, Any]], workloads: list[dict[str, Any]]) -> dict[str, Any]:
     return {
         "node_metric_top": _cross_node_metric_top(metrics, node_context),
         "namespace_metric_top": _cross_namespace_metric_top(metrics, namespace_context),
@@ -345,12 +324,7 @@ def _build_cross_stats(
     }
 
 
-def _node_context(
-    node_details: list[dict[str, Any]],
-    node_load: list[dict[str, Any]],
-    node_baseline: dict[str, dict[str, dict[str, float]]],
-    node_workloads: dict[str, dict[str, int]],
-) -> list[dict[str, Any]]:
+def _node_context(node_details: list[dict[str, Any]], node_load: list[dict[str, Any]], node_baseline: dict[str, dict[str, dict[str, float]]], node_workloads: dict[str, dict[str, int]]) -> list[dict[str, Any]]:
     load_map = {entry.get("node"): entry for entry in node_load if isinstance(entry, dict)}
     output: list[dict[str, Any]] = []
     for entry in node_details:
diff --git a/tests/unit/services/test_cluster_state_context_domains.py b/tests/unit/services/test_cluster_state_context_domains.py
index 4c93f14..327d139 100644
--- a/tests/unit/services/test_cluster_state_context_domains.py
+++ b/tests/unit/services/test_cluster_state_context_domains.py
@@ -62,6 +62,66 @@ def test_relationship_context_and_cross_stats() -> None:
     assert relationships._reason_top({"OOMKilled": 2})[0]["reason"] == "OOMKilled"
 
 
+def test_relationship_edge_filters_and_baseline_helpers(monkeypatch) -> None:
+    assert relationships._vector_to_named([None, {"metric": {}, "value": 1}], "node", "node") == []
+    assert relationships._vector_to_named(
+        [{"metric": {"node": "titan-1"}, "value": 2}, {"metric": {"node": "titan-2"}, "value": 1}],
+        "node",
+        "node",
+    )[0]["node"] == "titan-1"
+    assert relationships._pvc_top([{"metric": {}}, {"metric": {"namespace": "apps", "persistentvolumeclaim": "data"}, "value": 90}]) == [
+        {"namespace": "apps", "pvc": "data", "used_percent": 90}
+    ]
+
+    namespace_context = relationships._namespace_context(
+        [None, {"namespace": ""}, {"namespace": "apps", "pods_total": 1}],
+        [{"namespace": "apps", "nodes": "bad"}],
+        [{"namespace": "apps", "cpu_usage": "bad", "mem_usage": 2.0}],
+        "bad",
+    )
+    assert namespace_context[0]["namespace"] == "apps"
+    assert relationships._namespace_nodes_top([None, namespace_context[0]], 2)[0]["namespace"] == "apps"
+
+    workloads = [
+        None,
+        {"namespace": "apps", "nodes": {"titan-1": 1}},
+        {"namespace": "apps", "workload": "api", "nodes": "bad"},
+        {"namespace": "apps", "workload": "api", "nodes": {"": 1, "titan-1": "2", "titan-2": "bad", "titan-3": 0}},
+        {"workload": "solo", "nodes": {"titan-2": 1}},
+    ]
+    node_workloads = relationships._node_workload_map(workloads)
+    assert node_workloads == {"titan-1": {"apps/api": 2}, "titan-2": {"solo": 1}}
+    assert relationships._node_workloads_top({"": {}, "titan-1": "bad", "titan-2": {"solo": 1}}, limit_nodes=2)[0]["node"] == "titan-2"
+    assert relationships._workload_index([{"workload": "api", "pods_total": 1, "nodes": "bad"}])[0]["nodes_top"] == []
+
+    assert relationships._events_summary("bad") == {}
+    events = {"warnings_total": 2, "warnings_by_namespace": {"apps": 2, "db": 1}, "warnings_recent": [1, 2]}
+    assert relationships._events_summary(events)["top_namespace"] == {"namespace": "apps", "count": 2}
+
+    assert relationships._top_named_entries([None, {"node": ""}, {"node": "n1", "value": "bad"}, {"node": "n2", "value": "2"}], "node", 3) == [
+        {"name": "n2", "value": 2.0},
+        {"name": "n1", "value": 0.0},
+    ]
+    monkeypatch.setattr(relationships, "_top_named_entries", lambda *_args: [{"name": ""}])
+    assert relationships._cross_node_metric_top({"node_usage": {"cpu": [{}]}}, []) == []
+    assert relationships._cross_namespace_metric_top({"namespace_top": {"cpu": [{}]}}, []) == []
+
+    node_context = relationships._node_context(
+        [None, {"name": ""}, {"name": "titan-1", "pressure": ["DiskPressure"]}],
+        [{"node": "titan-1", "cpu": "bad", "load_index": 1.0}],
+        "bad",
+        "bad",
+    )
+    assert node_context[0]["node"] == "titan-1"
+    assert relationships._baseline_delta("bad", {"avg": 1}) is None
+    assert relationships._baseline_delta(1, {"avg": 0}) is None
+    assert relationships._delta_severity(50) == "warning"
+    assert relationships._delta_severity(5) == "info"
+    assert relationships._delta_entry_label({"namespace": "apps"}) == ("namespace", "apps")
+    assert relationships._delta_top([None, {"namespace": "apps", "baseline_delta": {"cpu": 5}}], "cpu")[0]["namespace"] == "apps"
+    assert relationships._reason_top({"": 1, "OOMKilled": "bad", "BackOff": 2}) == [{"reason": "BackOff", "count": 2}]
+
+
 def test_health_anomaly_signal_profile_and_attention_domains() -> None:
     metrics = {
         "nodes_total": 2,