fix(codex-transport): preserve request override headers for xai responses

agent/transports/codex.py

@@ -143,7 +143,18 @@ class ResponsesApiTransport(ProviderTransport):
             kwargs["max_output_tokens"] = max_tokens
 
         if is_xai_responses and session_id:
-            kwargs["extra_headers"] = {"x-grok-conv-id": session_id}
+            existing_extra_headers = kwargs.get("extra_headers")
+            merged_extra_headers: Dict[str, str] = {}
+            if isinstance(existing_extra_headers, dict):
+                merged_extra_headers.update(
+                    {
+                        str(key): str(value)
+                        for key, value in existing_extra_headers.items()
+                        if key and value is not None
+                    }
+                )
+            merged_extra_headers["x-grok-conv-id"] = session_id
+            kwargs["extra_headers"] = merged_extra_headers
 
         return kwargs
 

scripts/release.py

@@ -621,6 +621,7 @@ AUTHOR_MAP = {
     "2114364329@qq.com": "cuyua9",
     "2557058999@qq.com": "Disaster-Terminator",
     "cine.dreamer.one@gmail.com": "LeonSGP43",
+    "zyprothh@gmail.com": "Zyproth",
     "leozeli@qq.com": "leozeli",
     "linlehao@cuhk.edu.cn": "LehaoLin",
     "liutong@isacas.ac.cn": "I3eg1nner",

tests/agent/transports/test_codex_transport.py

@@ -126,6 +126,20 @@ class TestCodexBuildKwargs:
         )
         assert kw.get("extra_headers", {}).get("x-grok-conv-id") == "conv-123"
 
+    def test_xai_headers_preserve_request_override_headers(self, transport):
+        messages = [{"role": "user", "content": "Hi"}]
+        kw = transport.build_kwargs(
+            model="grok-3", messages=messages, tools=[],
+            session_id="conv-123",
+            is_xai_responses=True,
+            request_overrides={"extra_headers": {"X-Test": "1", "X-Trace": "abc"}},
+        )
+        assert kw.get("extra_headers") == {
+            "X-Test": "1",
+            "X-Trace": "abc",
+            "x-grok-conv-id": "conv-123",
+        }
+
     def test_minimal_effort_clamped(self, transport):
         messages = [{"role": "user", "content": "Hi"}]
         kw = transport.build_kwargs(