diff --git a/src/google/adk/cli/adk_web_server.py b/src/google/adk/cli/adk_web_server.py
index b97932d042..0dc63140c8 100644
--- a/src/google/adk/cli/adk_web_server.py
+++ b/src/google/adk/cli/adk_web_server.py
@@ -1636,6 +1636,9 @@ async def run_agent_live(
         modalities: List[Literal["TEXT", "AUDIO"]] = Query(
             default=["AUDIO"]
         ),  # Only allows "TEXT" or "AUDIO"
+        proactive_audio: bool = Query(default=False),
+        affective_dialog: bool = Query(default=False),
+        session_resumption: bool = Query(default=False),
     ) -> None:
       await websocket.accept()
 
@@ -1652,7 +1655,18 @@ async def run_agent_live(
 
       async def forward_events():
         runner = await self.get_runner_async(app_name)
-        run_config = RunConfig(response_modalities=modalities)
+        run_config = RunConfig(
+            response_modalities=modalities,
+            proactivity=(
+                types.ProactivityConfig(proactive_audio=proactive_audio)
+                if proactive_audio
+                else None
+            ),
+            enable_affective_dialog=affective_dialog or None,
+            session_resumption=(
+                types.SessionResumptionConfig() if session_resumption else None
+            ),
+        )
         async with Aclosing(
             runner.run_live(
                 session=session,
diff --git a/tests/unittests/cli/test_fast_api.py b/tests/unittests/cli/test_fast_api.py
index 0c69605349..8f186dbdd0 100755
--- a/tests/unittests/cli/test_fast_api.py
+++ b/tests/unittests/cli/test_fast_api.py
@@ -113,7 +113,12 @@ def _event_state_delta(state_delta: dict[str, Any]):
 
 
 # Define mocked async generator functions for the Runner
-async def dummy_run_live(self, session, live_request_queue):
+async def dummy_run_live(
+    self,
+    session,
+    live_request_queue,
+    run_config: Optional[RunConfig] = None,
+):
   yield _event_1()
   await asyncio.sleep(0)
 
@@ -1411,5 +1416,48 @@ def test_builder_save_rejects_traversal(builder_test_client, tmp_path):
   assert not (tmp_path / "app" / "tmp" / "escape.yaml").exists()
 
 
+def test_run_live_accepts_new_config_options(test_app, test_session_info):
+  """Test that /run_live endpoint accepts proactive_audio, affective_dialog, and session_resumption query parameters."""
+  # First, create a session to use
+  session_url = (
+      f"/apps/{test_session_info['app_name']}/users/"
+      f"{test_session_info['user_id']}/sessions/{test_session_info['session_id']}"
+  )
+  test_app.post(session_url, json={"state": {}})
+
+  # The actual websocket test would require more elaborate setup.
+  # Here we verify that the endpoint accepts the new query parameters
+  # by checking FastAPI's route signature.
+  from fastapi import Query as FastApiQuery
+
+  # Find the /run_live route
+  run_live_route = None
+  for route in test_app.app.routes:
+    if hasattr(route, "path") and route.path == "/run_live":
+      run_live_route = route
+      break
+
+  assert run_live_route is not None, "/run_live route not found"
+
+  # Check that the endpoint function signature includes the new parameters
+  import inspect
+
+  endpoint_fn = run_live_route.endpoint
+  sig = inspect.signature(endpoint_fn)
+  params = sig.parameters
+
+  # Verify the new parameters exist
+  assert "proactive_audio" in params, "proactive_audio parameter not found"
+  assert "affective_dialog" in params, "affective_dialog parameter not found"
+  assert (
+      "session_resumption" in params
+  ), "session_resumption parameter not found"
+
+  # Verify they have default values of False
+  assert params["proactive_audio"].default.default is False
+  assert params["affective_dialog"].default.default is False
+  assert params["session_resumption"].default.default is False
+
+
 if __name__ == "__main__":
   pytest.main(["-xvs", __file__])