diff --git a/extensions/line/src/bot-message-context.ts b/extensions/line/src/bot-message-context.ts
index 5514bea428b..db921706c12 100644
--- a/extensions/line/src/bot-message-context.ts
+++ b/extensions/line/src/bot-message-context.ts
@@ -42,7 +42,7 @@ interface BuildLineMessageContextParams {
   historyLimit?: number;
 }
 
-export type LineSourceInfo = {
+type LineSourceInfo = {
   userId?: string;
   groupId?: string;
   roomId?: string;
@@ -576,6 +576,6 @@ export async function buildLinePostbackContext(params: {
   };
 }
 
-export type LineMessageContext = NonNullable<Awaited<ReturnType<typeof buildLineMessageContext>>>;
-export type LinePostbackContext = NonNullable<Awaited<ReturnType<typeof buildLinePostbackContext>>>;
+type LineMessageContext = NonNullable<Awaited<ReturnType<typeof buildLineMessageContext>>>;
+type LinePostbackContext = NonNullable<Awaited<ReturnType<typeof buildLinePostbackContext>>>;
 export type LineInboundContext = LineMessageContext | LinePostbackContext;
diff --git a/extensions/line/src/bot.ts b/extensions/line/src/bot.ts
index 34c050e2238..4d25cfdad52 100644
--- a/extensions/line/src/bot.ts
+++ b/extensions/line/src/bot.ts
@@ -12,7 +12,7 @@ import { createLineWebhookReplayCache, handleLineWebhookEvents } from "./bot-han
 import type { LineInboundContext } from "./bot-message-context.js";
 import type { ResolvedLineAccount } from "./types.js";
 
-export interface LineBotOptions {
+interface LineBotOptions {
   channelAccessToken: string;
   channelSecret: string;
   accountId?: string;
@@ -22,7 +22,7 @@ export interface LineBotOptions {
   onMessage?: (ctx: LineInboundContext) => Promise<void>;
 }
 
-export interface LineBot {
+interface LineBot {
   handleWebhook: (body: webhook.CallbackRequest) => Promise<void>;
   account: ResolvedLineAccount;
 }
diff --git a/extensions/line/src/channel-shared.ts b/extensions/line/src/channel-shared.ts
index 887c785ddd1..9e14fd01311 100644
--- a/extensions/line/src/channel-shared.ts
+++ b/extensions/line/src/channel-shared.ts
@@ -1,10 +1,10 @@
 import { describeWebhookAccountSnapshot } from "openclaw/plugin-sdk/account-helpers";
-import { hasLineCredentials, parseLineAllowFromId } from "./account-helpers.js";
+import { hasLineCredentials } from "./account-helpers.js";
 import { type ChannelPlugin, type ResolvedLineAccount } from "./channel-api.js";
 import { lineConfigAdapter } from "./config-adapter.js";
 import { LineChannelConfigSchema } from "./config-schema.js";
 
-export const lineChannelMeta = {
+const lineChannelMeta = {
   id: "line",
   label: "LINE",
   selectionLabel: "LINE (Messaging API)",
@@ -46,5 +46,3 @@ export const lineChannelPluginCommon = {
   ChannelPlugin<ResolvedLineAccount>,
   "meta" | "capabilities" | "reload" | "configSchema" | "config"
 >;
-
-export { parseLineAllowFromId };
diff --git a/extensions/line/src/config-adapter.ts b/extensions/line/src/config-adapter.ts
index 17c9a74c497..d86b96bbf13 100644
--- a/extensions/line/src/config-adapter.ts
+++ b/extensions/line/src/config-adapter.ts
@@ -6,7 +6,7 @@ import {
   type ResolvedLineAccount,
 } from "./channel-api.js";
 
-export function normalizeLineAllowFrom(entry: string): string {
+function normalizeLineAllowFrom(entry: string): string {
   return entry.replace(/^line:(?:user:)?/i, "");
 }
 
diff --git a/extensions/line/src/outbound-media.ts b/extensions/line/src/outbound-media.ts
index 480db862b6d..b18f63b9dc0 100644
--- a/extensions/line/src/outbound-media.ts
+++ b/extensions/line/src/outbound-media.ts
@@ -1,7 +1,7 @@
 import { resolvePinnedHostnameWithPolicy, type SsrFPolicy } from "openclaw/plugin-sdk/ssrf-runtime";
 import { normalizeLowercaseStringOrEmpty } from "openclaw/plugin-sdk/text-runtime";
 
-export type LineOutboundMediaKind = "image" | "video" | "audio";
+type LineOutboundMediaKind = "image" | "video" | "audio";
 
 export type LineOutboundMediaResolved = {
   mediaUrl: string;
diff --git a/extensions/line/src/reply-chunks.ts b/extensions/line/src/reply-chunks.ts
index 264317f2dee..fbd8d87a2bf 100644
--- a/extensions/line/src/reply-chunks.ts
+++ b/extensions/line/src/reply-chunks.ts
@@ -1,7 +1,7 @@
 import type { messagingApi } from "@line/bot-sdk";
 import type { OpenClawConfig } from "openclaw/plugin-sdk/config-types";
 
-export type LineReplyMessage = messagingApi.TextMessage;
+type LineReplyMessage = messagingApi.TextMessage;
 
 export type SendLineReplyChunksParams = {
   to: string;
diff --git a/extensions/line/src/runtime.ts b/extensions/line/src/runtime.ts
index 3c165ebd201..9ab7e119c90 100644
--- a/extensions/line/src/runtime.ts
+++ b/extensions/line/src/runtime.ts
@@ -15,7 +15,7 @@ type LineChannelRuntime = {
   sendMessageLine?: typeof import("./send.js").sendMessageLine;
 };
 
-export type LineRuntime = PluginRuntime & {
+type LineRuntime = PluginRuntime & {
   channel: PluginRuntime["channel"] & {
     line?: LineChannelRuntime;
   };
diff --git a/extensions/line/src/types.ts b/extensions/line/src/types.ts
index 72dacf57501..399359c3f21 100644
--- a/extensions/line/src/types.ts
+++ b/extensions/line/src/types.ts
@@ -2,7 +2,7 @@ import type { BaseProbeResult } from "openclaw/plugin-sdk/channel-contract";
 
 export type LineTokenSource = "config" | "env" | "file" | "none";
 
-export interface LineThreadBindingsConfig {
+interface LineThreadBindingsConfig {
   enabled?: boolean;
   idleHours?: number;
   maxAgeHours?: number;
@@ -67,7 +67,7 @@ export type LineProbeResult = BaseProbeResult<string> & {
   };
 };
 
-export type LineFlexMessagePayload = {
+type LineFlexMessagePayload = {
   altText: string;
   contents: unknown;
 };