From 05b64bdde9d44dbffc83963de9004f5026aabd18 Mon Sep 17 00:00:00 2001
From: mikemikimike <13286568797@163.com>
Date: Sun, 13 Sep 2026 20:38:39 +0800
Subject: [PATCH] fix(router): satisfy type discipline budget

---
 litellm/router_strategy/adaptive_router/adaptive_router.py | 3 ++-
 litellm/router_strategy/quality_router/quality_router.py   | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/litellm/router_strategy/adaptive_router/adaptive_router.py b/litellm/router_strategy/adaptive_router/adaptive_router.py
index 90938706cbc..fee6f2d9d50 100644
--- a/litellm/router_strategy/adaptive_router/adaptive_router.py
+++ b/litellm/router_strategy/adaptive_router/adaptive_router.py
@@ -224,12 +224,13 @@ class AdaptiveRouter:
         baseline = resolve_baseline(self.litellm_router_instance, self.config.available_models)
         if baseline is None:
             return {}  # mutable-ok: immutable empty result for unresolved baseline
-        return {
+        fields: Final[StandardLoggingRoutingDecision] = {
             "savings_baseline_model": baseline.model,
             **(
                 {"savings_baseline_deployment_id": baseline.deployment_id} if baseline.deployment_id is not None else {}
             ),
         }
+        return fields
 
     # ---- Pick model ------------------------------------------------------
 
diff --git a/litellm/router_strategy/quality_router/quality_router.py b/litellm/router_strategy/quality_router/quality_router.py
index 5e28c5a7c15..02cb1a58af1 100644
--- a/litellm/router_strategy/quality_router/quality_router.py
+++ b/litellm/router_strategy/quality_router/quality_router.py
@@ -326,12 +326,13 @@ class QualityRouter(CustomLogger):
         baseline = resolve_baseline(self.litellm_router_instance, self.config.available_models)
         if baseline is None:
             return {}  # mutable-ok: immutable empty result for unresolved baseline
-        return {
+        fields: Final[StandardLoggingRoutingDecision] = {
             "savings_baseline_model": baseline.model,
             **(
                 {"savings_baseline_deployment_id": baseline.deployment_id} if baseline.deployment_id is not None else {}
             ),
         }
+        return fields
 
     async def async_pre_routing_hook(
         self,
@@ -468,7 +469,7 @@ class QualityRouter(CustomLogger):
             cause="quality_tier",
             tier=str(int(quality_tier)),
             score=score,
-            signals=list(signals),
+            signals=list(signals),  # mutable-ok: routing decision metadata uses a JSON list
             conversation_continuing=conversation_continuing,
         )
         quality_routing_decision.update(savings_fields)