diff --git a/litellm/integrations/prometheus.py b/litellm/integrations/prometheus.py
index fa4e6f10695..a08388b4ca1 100644
--- a/litellm/integrations/prometheus.py
+++ b/litellm/integrations/prometheus.py
@@ -683,7 +683,9 @@ class PrometheusLogger(CustomLogger):
             # A wildcard group only sets a default label filter - it should
             # never narrow down which metrics get created. Only groups that
             # name real metrics feed into enabled_metrics, same as before.
-            if parsed_config.metrics != [PROMETHEUS_METRICS_WILDCARD]:
+            if parsed_config.metrics != [
+                PROMETHEUS_METRICS_WILDCARD
+            ]:  # mutable-ok: single-item literal used only for equality comparison, never mutated
                 self.enabled_metrics.update(parsed_config.metrics)
 
         # Validate all configurations
@@ -720,12 +722,14 @@ class PrometheusLogger(CustomLogger):
                     )
 
                 if config.include_labels:
-                    all_valid_labels = {
+                    all_valid_labels = {  # mutable-ok: local set built once per validation call, not mutated after construction
                         label
                         for metric_name in get_args(DEFINED_PROMETHEUS_METRICS)
                         for label in PrometheusMetricLabels.get_labels(metric_name)
                     }
-                    unknown_labels = [label for label in config.include_labels if label not in all_valid_labels]
+                    unknown_labels = [
+                        label for label in config.include_labels if label not in all_valid_labels
+                    ]  # mutable-ok: local list built once, not mutated after construction
                     if unknown_labels:
                         label_errors.append(
                             LabelValidationError(
@@ -782,10 +786,16 @@ class PrometheusLogger(CustomLogger):
         """Build label filters from validated configurations"""
         from typing import get_args
 
-        label_filters: dict[str, list[str]] = {}
+        label_filters: dict[
+            str, list[str]
+        ] = {}  # mutable-ok: accumulator dict returned to the caller, required by the existing return type
 
-        wildcard_configs = [c for c in parsed_configs if c.metrics == [PROMETHEUS_METRICS_WILDCARD]]
-        named_configs = [c for c in parsed_configs if c.metrics != [PROMETHEUS_METRICS_WILDCARD]]
+        wildcard_configs = [
+            c for c in parsed_configs if c.metrics == [PROMETHEUS_METRICS_WILDCARD]
+        ]  # mutable-ok: accumulator dict returned to the caller, required by the existing return type
+        named_configs = [
+            c for c in parsed_configs if c.metrics != [PROMETHEUS_METRICS_WILDCARD]
+        ]  # mutable-ok: accumulator dict returned to the caller, required by the existing return type
 
         for config in wildcard_configs:
             if not config.include_labels:
diff --git a/litellm/types/integrations/prometheus.py b/litellm/types/integrations/prometheus.py
index d36cbfe347b..760294b0f62 100644
--- a/litellm/types/integrations/prometheus.py
+++ b/litellm/types/integrations/prometheus.py
@@ -789,7 +789,9 @@ class PrometheusMetricLabels:
         # Default to no labels instead of raising, so anything that legitimately
         # iterates over every defined metric name (e.g. a wildcard config group)
         # doesn't blow up on a metric like this.
-        default_labels = getattr(PrometheusMetricLabels, label_name, [])
+        default_labels = getattr(
+            PrometheusMetricLabels, label_name, []
+        )  # mutable-ok: empty-list default for getattr fallback, never mutated
         custom_labels = []
 
         # Add custom metadata labels