diff --git a/extensions/lobster/src/lobster-taskflow.ts b/extensions/lobster/src/lobster-taskflow.ts
index 8ca2c92b1d8..2efd196b8dd 100644
--- a/extensions/lobster/src/lobster-taskflow.ts
+++ b/extensions/lobster/src/lobster-taskflow.ts
@@ -18,7 +18,7 @@ type BoundTaskFlow = ReturnType<
 type FlowRecord = ReturnType<BoundTaskFlow["createManaged"]>;
 type MutationResult = ReturnType<BoundTaskFlow["setWaiting"]>;
 
-export type LobsterApprovalWaitState = {
+type LobsterApprovalWaitState = {
   kind: "lobster_approval";
   prompt: string;
   items: JsonLike[];
@@ -26,7 +26,7 @@ export type LobsterApprovalWaitState = {
   approvalId?: string;
 };
 
-export type RunManagedLobsterFlowParams = {
+type RunManagedLobsterFlowParams = {
   taskFlow: BoundTaskFlow;
   runner: LobsterRunner;
   runnerParams: LobsterRunnerParams;
@@ -37,7 +37,7 @@ export type RunManagedLobsterFlowParams = {
   waitingStep?: string;
 };
 
-export type ResumeManagedLobsterFlowParams = {
+type ResumeManagedLobsterFlowParams = {
   taskFlow: BoundTaskFlow;
   runner: LobsterRunner;
   runnerParams: LobsterRunnerParams & {
diff --git a/extensions/lobster/src/taskflow-test-helpers.ts b/extensions/lobster/src/taskflow-test-helpers.ts
index 4845663d466..19a3a3c0559 100644
--- a/extensions/lobster/src/taskflow-test-helpers.ts
+++ b/extensions/lobster/src/taskflow-test-helpers.ts
@@ -1,7 +1,7 @@
 import { vi } from "vitest";
 import type { OpenClawPluginApi } from "../runtime-api.js";
 
-export type BoundTaskFlow = ReturnType<
+type BoundTaskFlow = ReturnType<
   NonNullable<OpenClawPluginApi["runtime"]>["tasks"]["managedFlows"]["bindSession"]
 >;