From 418e8ca5e8db8bd8a0e916d6579aec3279cd2395 Mon Sep 17 00:00:00 2001
From: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Sun, 23 Aug 2026 00:00:21 +0000
Subject: [PATCH] fix(bedrock): build response field paths as an immutable
 sequence to satisfy the type discipline gate

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---
 litellm/llms/bedrock/chat/converse_transformation.py           | 2 +-
 litellm/types/llms/bedrock.py                                  | 3 ++-
 .../llms/bedrock/chat/test_converse_transformation.py          | 2 +-
 type-discipline-budget.json                                    | 2 +-
 4 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/litellm/llms/bedrock/chat/converse_transformation.py b/litellm/llms/bedrock/chat/converse_transformation.py
index 52366da8c35..767677cbcbf 100644
--- a/litellm/llms/bedrock/chat/converse_transformation.py
+++ b/litellm/llms/bedrock/chat/converse_transformation.py
@@ -1618,7 +1618,7 @@ class AmazonConverseConfig(BaseConfig):
         if additional_request_params:
             data["additionalModelRequestFields"] = additional_request_params
             if "thinking" in additional_request_params:
-                data["additionalModelResponseFieldPaths"] = ["/usage/output_tokens_details"]
+                data["additionalModelResponseFieldPaths"] = ("/usage/output_tokens_details",)
         if system_content_blocks:
             data["system"] = system_content_blocks
 
diff --git a/litellm/types/llms/bedrock.py b/litellm/types/llms/bedrock.py
index 5665aa3277a..6ae2e31fe60 100644
--- a/litellm/types/llms/bedrock.py
+++ b/litellm/types/llms/bedrock.py
@@ -1,4 +1,5 @@
 import json
+from collections.abc import Sequence
 from enum import Enum
 from typing import TYPE_CHECKING, Any, Final, Literal
 
@@ -396,7 +397,7 @@ class OutputConfigBlock(TypedDict, total=False):
 
 class CommonRequestObject(TypedDict, total=False):  # common request object across sync + async flows
     additionalModelRequestFields: dict
-    additionalModelResponseFieldPaths: list[str]
+    additionalModelResponseFieldPaths: Sequence[str]
     inferenceConfig: InferenceConfig
     system: list[SystemContentBlock]
     toolConfig: ToolConfigBlock
diff --git a/tests/test_litellm/llms/bedrock/chat/test_converse_transformation.py b/tests/test_litellm/llms/bedrock/chat/test_converse_transformation.py
index b648b6322f7..4d2c077b548 100644
--- a/tests/test_litellm/llms/bedrock/chat/test_converse_transformation.py
+++ b/tests/test_litellm/llms/bedrock/chat/test_converse_transformation.py
@@ -401,7 +401,7 @@ def test_thinking_request_adds_output_tokens_details_response_path():
         headers={},
     )
 
-    assert result["additionalModelResponseFieldPaths"] == ["/usage/output_tokens_details"]
+    assert result["additionalModelResponseFieldPaths"] == ("/usage/output_tokens_details",)
 
 
 def test_request_without_thinking_omits_response_field_paths():
diff --git a/type-discipline-budget.json b/type-discipline-budget.json
index 627811a7f1d..05098546325 100644
--- a/type-discipline-budget.json
+++ b/type-discipline-budget.json
@@ -1,6 +1,6 @@
 {
   "LIT001": {
-    "limit": 22805
+    "limit": 22804
   },
   "LIT002": {
     "limit": 26873