diff --git a/workflows/sense-generator/index.ts b/workflows/sense-generator/index.ts
index 18926dc..f3fce38 100644
--- a/workflows/sense-generator/index.ts
+++ b/workflows/sense-generator/index.ts
@@ -1,15 +1,10 @@
 import type { WorkflowDefinition } from "@uncaged/nerve-core";
-import { END } from "@uncaged/nerve-core";
 import { buildPlannerRole } from "./roles/planner/index.js";
 import { buildCoderRole } from "./roles/coder/index.js";
 import { buildTesterRole } from "./roles/tester/index.js";
-
+import { moderator } from "./moderator.js";
 import type { SenseMeta } from "./roles/types.js";
 
-function countRole(steps: { role: string }[], name: string): number {
-  return steps.filter((s) => s.role === name).length;
-}
-
 const workflow: WorkflowDefinition<SenseMeta> = {
   name: "sense-generator",
   roles: {
@@ -17,17 +12,7 @@ const workflow: WorkflowDefinition<SenseMeta> = {
     coder: await buildCoderRole(),
     tester: await buildTesterRole(),
   },
-  moderator(context) {
-    if (context.steps.length === 0) return "planner";
-    const last = context.steps[context.steps.length - 1];
-    if (last.role === "planner") return "coder";
-    if (last.role === "coder") return "tester";
-    if (last.role === "tester") {
-      if (last.meta.passed) return END;
-      return countRole(context.steps, "tester") < 3 ? "coder" : END;
-    }
-    return END;
-  },
+  moderator,
 };
 
 export default workflow;
diff --git a/workflows/sense-generator/moderator.ts b/workflows/sense-generator/moderator.ts
new file mode 100644
index 0000000..abc3b3c
--- /dev/null
+++ b/workflows/sense-generator/moderator.ts
@@ -0,0 +1,19 @@
+import { END } from "@uncaged/nerve-core";
+import type { Moderator } from "@uncaged/nerve-core";
+import type { SenseMeta } from "./roles/types.js";
+
+function countRole(steps: { role: string }[], name: string): number {
+  return steps.filter((s) => s.role === name).length;
+}
+
+export const moderator: Moderator<SenseMeta> = (context) => {
+  if (context.steps.length === 0) return "planner";
+  const last = context.steps[context.steps.length - 1];
+  if (last.role === "planner") return "coder";
+  if (last.role === "coder") return "tester";
+  if (last.role === "tester") {
+    if (last.meta.passed) return END;
+    return countRole(context.steps, "tester") < 3 ? "coder" : END;
+  }
+  return END;
+};