diff --git a/library-standard/src/mas/library/standard/plugins/design_patterns/linear.py b/library-standard/src/mas/library/standard/plugins/design_patterns/linear.py
index 6f43087f..2aaa8381 100644
--- a/library-standard/src/mas/library/standard/plugins/design_patterns/linear.py
+++ b/library-standard/src/mas/library/standard/plugins/design_patterns/linear.py
@@ -18,7 +18,7 @@ class DeterministicLinearPlugin(_DeterministicBase):
     plugin_id = "deterministic_linear@v1"
     mode = "linear"
 
-    def evaluate_next(self, q: QProduct, run: RunLedger, *, config: KernelConfig) -> list[EgressSymbol]:
+    def evaluate_next(self, q: QProduct, run: RunLedger, config: KernelConfig) -> list[EgressSymbol]:
         st = self._state()
         if not st.participants:
             return self._no_participants(q)
diff --git a/runtime/src/mas/runtime/kernel/ingress_step.py b/runtime/src/mas/runtime/kernel/ingress_step.py
index 52398451..266e9c56 100644
--- a/runtime/src/mas/runtime/kernel/ingress_step.py
+++ b/runtime/src/mas/runtime/kernel/ingress_step.py
@@ -94,7 +94,7 @@ def commit_engine_io_return(
     q.dp = DpState.EVALUATING
     apply_control_valid(q)
     coord_after_ingress(q)
-    return evaluate(q, run, config)
+    return evaluate(q, run, config=config)
 
 
 def apply_engine_io_return(
@@ -203,6 +203,6 @@ def apply_engine_io_return(
         )
         q.inflight_kind = "NONE"
         q.dp = DpState.EVALUATING
-        return evaluate(q, run, config)
+        return evaluate(q, run, config=config)
 
     return commit_engine_io_return(q, run, event, config=config, evaluate=evaluate)
diff --git a/runtime/tests/test_parallel_tools.py b/runtime/tests/test_parallel_tools.py
index 7bbeab41..80d9933c 100644
--- a/runtime/tests/test_parallel_tools.py
+++ b/runtime/tests/test_parallel_tools.py
@@ -102,7 +102,7 @@ def test_schedule_parallel_tools_egress_siblings_share_one_parent() -> None:
             text="ok",
         )
         with runtime_binding(None, op):
-            apply_engine_io_return(q, run, event, config=config, evaluate=lambda *_: [])
+            apply_engine_io_return(q, run, event, config=config, evaluate=lambda *_, **__: [])
 
     ends = [
         e