diff --git a/agentops/instrumentation/providers/openai/attributes/response.py b/agentops/instrumentation/providers/openai/attributes/response.py
index 195eb5bdb..9cf8f4b80 100644
--- a/agentops/instrumentation/providers/openai/attributes/response.py
+++ b/agentops/instrumentation/providers/openai/attributes/response.py
@@ -503,7 +503,7 @@ def get_response_tool_web_search_attributes(tool: "WebSearchTool", index: int) -
     if hasattr(tool, "search_context_size"):
         parameters["search_context_size"] = tool.search_context_size
 
-    if hasattr(tool, "user_location"):
+    if hasattr(tool, "user_location") and tool.user_location is not None:
         parameters["user_location"] = tool.user_location.__dict__
 
     tool_data = tool.__dict__
@@ -521,13 +521,13 @@ def get_response_tool_file_search_attributes(tool: "FileSearchTool", index: int)
     if hasattr(tool, "vector_store_ids"):
         parameters["vector_store_ids"] = tool.vector_store_ids
 
-    if hasattr(tool, "filters"):
+    if hasattr(tool, "filters") and tool.filters is not None:
         parameters["filters"] = tool.filters.__dict__
 
     if hasattr(tool, "max_num_results"):
         parameters["max_num_results"] = tool.max_num_results
 
-    if hasattr(tool, "ranking_options"):
+    if hasattr(tool, "ranking_options") and tool.ranking_options is not None:
         parameters["ranking_options"] = tool.ranking_options.__dict__
 
     tool_data = tool.__dict__
diff --git a/tests/unit/instrumentation/providers/openai/test_response_issue_1285.py b/tests/unit/instrumentation/providers/openai/test_response_issue_1285.py
new file mode 100644
index 000000000..b4b514649
--- /dev/null
+++ b/tests/unit/instrumentation/providers/openai/test_response_issue_1285.py
@@ -0,0 +1,94 @@
+"""
+Regression test for issue #1285:
+'NoneType' object has no attribute '__dict__' in get_response_tool_web/file_search_attributes
+
+When OpenAI Agents SDK tools have optional fields (user_location, filters, ranking_options)
+set to None, hasattr() returns True but .__dict__ access crashes.
+"""
+
+import pytest
+from unittest.mock import MagicMock
+
+from agentops.instrumentation.providers.openai.attributes.response import (
+    get_response_tool_web_search_attributes,
+    get_response_tool_file_search_attributes,
+)
+
+
+class MockUserLocation:
+    """Mock user_location object with a __dict__ attribute."""
+    def __init__(self):
+        self.type = "approximate"
+        self.country = "US"
+
+
+class MockRankingOptions:
+    """Mock ranking_options object with a __dict__ attribute."""
+    def __init__(self):
+        self.score_threshold = 0.5
+
+
+class MockFilters:
+    """Mock filters object with a __dict__ attribute."""
+    def __init__(self):
+        self.type = "and"
+        self.filters = []
+
+
+class TestIssue1285:
+    """Test that None optional fields don't crash attribute extraction."""
+
+    def test_web_search_tool_with_none_user_location(self):
+        """user_location=None should not cause AttributeError."""
+        tool = MagicMock()
+        tool.search_context_size = 1024
+        tool.user_location = None  # This is the bug: hasattr returns True, but .__dict__ crashes
+
+        # Should not raise AttributeError
+        result = get_response_tool_web_search_attributes(tool, index=0)
+        assert isinstance(result, dict)
+
+    def test_web_search_tool_with_valid_user_location(self):
+        """user_location with a real object should still work."""
+        tool = MagicMock()
+        tool.search_context_size = 1024
+        tool.user_location = MockUserLocation()
+        tool.user_location.__dict__ = {"type": "approximate", "country": "US"}
+
+        result = get_response_tool_web_search_attributes(tool, index=0)
+        assert isinstance(result, dict)
+
+    def test_file_search_tool_with_none_filters(self):
+        """filters=None should not cause AttributeError."""
+        tool = MagicMock()
+        tool.vector_store_ids = ["vs_123"]
+        tool.filters = None  # Bug: hasattr returns True, .__dict__ crashes
+        tool.max_num_results = 5
+        tool.ranking_options = None  # Bug: same issue
+
+        result = get_response_tool_file_search_attributes(tool, index=0)
+        assert isinstance(result, dict)
+
+    def test_file_search_tool_with_none_ranking_options(self):
+        """ranking_options=None should not cause AttributeError."""
+        tool = MagicMock()
+        tool.vector_store_ids = ["vs_123"]
+        tool.filters = MockFilters()
+        tool.max_num_results = 5
+        tool.ranking_options = None
+
+        result = get_response_tool_file_search_attributes(tool, index=0)
+        assert isinstance(result, dict)
+
+    def test_file_search_tool_with_valid_fields(self):
+        """All valid fields should still work correctly."""
+        tool = MagicMock()
+        tool.vector_store_ids = ["vs_123"]
+        tool.filters = MockFilters()
+        tool.filters.__dict__ = {"type": "and", "filters": []}
+        tool.max_num_results = 5
+        tool.ranking_options = MockRankingOptions()
+        tool.ranking_options.__dict__ = {"score_threshold": 0.5}
+
+        result = get_response_tool_file_search_attributes(tool, index=0)
+        assert isinstance(result, dict)