From 1443dfb070dd8756c813e292eec0fec39669f0b4 Mon Sep 17 00:00:00 2001
From: Om Chauhan <omchauhan64408@gmail.com>
Date: Tue, 7 Apr 2026 10:12:39 +0530
Subject: [PATCH] added changelog

---
 changelog/4248.added.md                      | 1 +
 src/pipecat/adapters/schemas/tools_schema.py | 2 +-
 tests/test_function_calling_adapters.py      | 4 ++--
 3 files changed, 4 insertions(+), 3 deletions(-)
 create mode 100644 changelog/4248.added.md

diff --git a/changelog/4248.added.md b/changelog/4248.added.md
new file mode 100644
index 000000000..72a127c2f
--- /dev/null
+++ b/changelog/4248.added.md
@@ -0,0 +1 @@
+- Added `AdapterType.OPENAI` to `ToolsSchema`, enabling custom OpenAI-specific tools (e.g. `tool_search`) in Chat Completions,Responses, and Realtime adapters.
diff --git a/src/pipecat/adapters/schemas/tools_schema.py b/src/pipecat/adapters/schemas/tools_schema.py
index 4ccf2fb81..1c1ba0dd3 100644
--- a/src/pipecat/adapters/schemas/tools_schema.py
+++ b/src/pipecat/adapters/schemas/tools_schema.py
@@ -22,7 +22,7 @@ class AdapterType(Enum):
 
     Parameters:
         GEMINI: Google Gemini adapter.
-        OPENAI: OpenAI adapter (Chat Completions and Responses API).
+        OPENAI: OpenAI adapter (Chat Completions, Responses, and Realtime API).
     """
 
     GEMINI = "gemini"
diff --git a/tests/test_function_calling_adapters.py b/tests/test_function_calling_adapters.py
index 306cde69e..67df0c7e9 100644
--- a/tests/test_function_calling_adapters.py
+++ b/tests/test_function_calling_adapters.py
@@ -299,10 +299,10 @@ class TestFunctionAdapters(unittest.TestCase):
 
     def test_openai_adapter_ignores_other_adapter_custom_tools(self):
         """Test that OpenAI adapter ignores custom tools for other adapters."""
+        expected = OpenAILLMAdapter().to_provider_tools_format(self.tools_def)
         tools_def = self.tools_def
         tools_def.custom_tools = {AdapterType.GEMINI: [{"google_search": {}}]}
-        result = OpenAILLMAdapter().to_provider_tools_format(tools_def)
-        assert len(result) == 1
+        assert OpenAILLMAdapter().to_provider_tools_format(tools_def) == expected
 
     def test_bedrock_adapter(self):
         """Test AWS Bedrock adapter format transformation."""