diff --git a/packages/core/src/store.ts b/packages/core/src/store.ts
index 6215ae902b..8b3067fd01 100644
--- a/packages/core/src/store.ts
+++ b/packages/core/src/store.ts
@@ -1221,6 +1221,7 @@ interface MoveTaskInternalOptions {
   movePolicyPreflight?: {
     fromColumn: string;
     toColumn: string;
+    workflowSignature: string;
   };
 }
 
@@ -6387,6 +6388,7 @@ export class TaskStore extends EventEmitter<TaskStoreEvents> {
     if (task.column === toColumn) return undefined;
 
     const workflowIr = this.resolveTaskWorkflowIrSync(id);
+    const workflowSignature = serializeWorkflowIr(workflowIr);
     const bypassGuards = this.resolveWorkflowBypassGuards(moveSource, options);
     const fromColumn = task.column;
     if (this.shouldSkipWorkflowMovePolicies({ fromColumn, toColumn, moveSource, bypassGuards, options })) {
@@ -6409,7 +6411,7 @@ export class TaskStore extends EventEmitter<TaskStoreEvents> {
       source: options?.workflowMoveSource ?? moveSource,
       metadata: options?.workflowMoveMetadata,
     });
-    return { fromColumn, toColumn };
+    return { fromColumn, toColumn, workflowSignature };
   }
 
   private async evaluateWorkflowMovePolicies(input: WorkflowMovePolicyInput): Promise<void> {
@@ -6615,7 +6617,8 @@ export class TaskStore extends EventEmitter<TaskStoreEvents> {
       if (!skipWorkflowMovePolicies) {
         if (
           internal.movePolicyPreflight?.fromColumn !== fromColumn ||
-          internal.movePolicyPreflight?.toColumn !== toColumn
+          internal.movePolicyPreflight?.toColumn !== toColumn ||
+          internal.movePolicyPreflight?.workflowSignature !== serializeWorkflowIr(workflowIr)
         ) {
           throw new TransitionRejectionError(
             makeTransitionRejection(
diff --git a/packages/engine/src/__tests__/workflow-node-handler-extensions.test.ts b/packages/engine/src/__tests__/workflow-node-handler-extensions.test.ts
index b2c0784460..2e30cc56de 100644
--- a/packages/engine/src/__tests__/workflow-node-handler-extensions.test.ts
+++ b/packages/engine/src/__tests__/workflow-node-handler-extensions.test.ts
@@ -76,7 +76,7 @@ describe("workflow node-handler extensions", () => {
       schemaVersion: WORKFLOW_EXTENSION_SCHEMA_VERSION,
       fallback: "failClosed",
       handle: vi.fn().mockResolvedValue({
-        outcome: "outcome:custom-route",
+        outcome: "outcome:ignored-route",
         value: "needs-human",
       }),
     });
@@ -93,7 +93,7 @@ describe("workflow node-handler extensions", () => {
       edges: [
         { from: "start", to: "decide" },
         { from: "decide", to: "human", condition: "outcome:needs-human" },
-        { from: "decide", to: "default", condition: "outcome:custom-route" },
+        { from: "decide", to: "default", condition: "outcome:ignored-route" },
       ],
     };
     const prompt = vi.fn(async () => ({ outcome: "success" as const }));