diff --git a/extensions/qqbot/src/bridge/commands/framework-context-adapter.ts b/extensions/qqbot/src/bridge/commands/framework-context-adapter.ts
index 18b87fa07f7..437c72cc3f4 100644
--- a/extensions/qqbot/src/bridge/commands/framework-context-adapter.ts
+++ b/extensions/qqbot/src/bridge/commands/framework-context-adapter.ts
@@ -27,7 +27,7 @@ const DEFAULT_QUEUE_SNAPSHOT = {
   senderPending: 0,
 } as const;
 
-export interface BuildFrameworkSlashContextInput {
+interface BuildFrameworkSlashContextInput {
   ctx: PluginCommandContext;
   account: ResolvedQQBotAccount;
   from: QQBotFromParseResult;
diff --git a/extensions/qqbot/src/bridge/commands/result-dispatcher.ts b/extensions/qqbot/src/bridge/commands/result-dispatcher.ts
index 0cdca024f21..495d7f2eb16 100644
--- a/extensions/qqbot/src/bridge/commands/result-dispatcher.ts
+++ b/extensions/qqbot/src/bridge/commands/result-dispatcher.ts
@@ -19,11 +19,11 @@ import type { QQBotFromParseResult } from "./from-parser.js";
 
 const UNEXPECTED_RESULT_TEXT = "⚠️ 命令返回了意外结果。";
 
-export interface FrameworkSlashReply {
+interface FrameworkSlashReply {
   text: string;
 }
 
-export interface DispatchFrameworkSlashResultInput {
+interface DispatchFrameworkSlashResultInput {
   result: SlashCommandResult;
   account: ResolvedQQBotAccount;
   from: QQBotFromParseResult;
diff --git a/extensions/qqbot/src/bridge/logger.ts b/extensions/qqbot/src/bridge/logger.ts
index dbf40e3cdd1..e86b56c8bad 100644
--- a/extensions/qqbot/src/bridge/logger.ts
+++ b/extensions/qqbot/src/bridge/logger.ts
@@ -5,7 +5,7 @@
  * engine's `debugLog` so that all logs flow through the OpenClaw log system.
  */
 
-export interface BridgeLogger {
+interface BridgeLogger {
   info: (msg: string) => void;
   error: (msg: string) => void;
   warn?: (msg: string) => void;
diff --git a/extensions/qqbot/src/engine/access/access-control.ts b/extensions/qqbot/src/engine/access/access-control.ts
index dad805e54c4..f5dc9d6fce5 100644
--- a/extensions/qqbot/src/engine/access/access-control.ts
+++ b/extensions/qqbot/src/engine/access/access-control.ts
@@ -23,7 +23,7 @@ import {
   type QQBotGroupPolicy,
 } from "./types.js";
 
-export interface QQBotAccessInput extends EffectivePolicyInput {
+interface QQBotAccessInput extends EffectivePolicyInput {
   /** Whether the inbound originated in a group (or guild) chat. */
   isGroup: boolean;
   /** The raw inbound sender id as provided by the QQ event. */
diff --git a/extensions/qqbot/src/engine/api/api-client.ts b/extensions/qqbot/src/engine/api/api-client.ts
index 54854c12c45..89a4b7f3808 100644
--- a/extensions/qqbot/src/engine/api/api-client.ts
+++ b/extensions/qqbot/src/engine/api/api-client.ts
@@ -16,7 +16,7 @@ const DEFAULT_BASE_URL = "https://api.sgroup.qq.com";
 const DEFAULT_TIMEOUT_MS = 30_000;
 const FILE_UPLOAD_TIMEOUT_MS = 120_000;
 
-export interface RequestOptions {
+interface RequestOptions {
   /** Request timeout override in milliseconds. */
   timeoutMs?: number;
   /** Body keys to redact in debug logs (e.g. `['file_data']`). */
diff --git a/extensions/qqbot/src/engine/api/media-chunked.ts b/extensions/qqbot/src/engine/api/media-chunked.ts
index 1708d573f33..ee5aeebc484 100644
--- a/extensions/qqbot/src/engine/api/media-chunked.ts
+++ b/extensions/qqbot/src/engine/api/media-chunked.ts
@@ -84,7 +84,7 @@ export class UploadDailyLimitExceededError extends Error {
 }
 
 /** Chunked-upload progress callback payload. */
-export interface ChunkedUploadProgress {
+interface ChunkedUploadProgress {
   completedParts: number;
   totalParts: number;
   uploadedBytes: number;
@@ -92,7 +92,7 @@ export interface ChunkedUploadProgress {
 }
 
 /** Per-call options for {@link ChunkedMediaApi.uploadChunked}. */
-export interface UploadChunkedOptions {
+interface UploadChunkedOptions {
   scope: ChatScope;
   targetId: string;
   fileType: MediaFileType;
@@ -110,7 +110,7 @@ export interface UploadChunkedOptions {
 }
 
 /** Configuration for the {@link ChunkedMediaApi} constructor. */
-export interface ChunkedMediaApiConfig {
+interface ChunkedMediaApiConfig {
   logger?: EngineLogger;
   /** Upload cache adapter (optional; omit to disable caching). */
   uploadCache?: UploadCacheAdapter;
diff --git a/extensions/qqbot/src/engine/api/media.ts b/extensions/qqbot/src/engine/api/media.ts
index 6905dbaffb7..93534aa5c67 100644
--- a/extensions/qqbot/src/engine/api/media.ts
+++ b/extensions/qqbot/src/engine/api/media.ts
@@ -42,7 +42,7 @@ export interface UploadCacheAdapter {
 /** File name sanitizer — injected to avoid importing platform-specific utils. */
 export type SanitizeFileNameFn = (name: string) => string;
 
-export interface MediaApiConfig {
+interface MediaApiConfig {
   logger?: EngineLogger;
   /** Upload cache adapter (optional, omit to disable caching). */
   uploadCache?: UploadCacheAdapter;
diff --git a/extensions/qqbot/src/engine/api/messages.ts b/extensions/qqbot/src/engine/api/messages.ts
index 36a5cee9e3e..407b67d5c2c 100644
--- a/extensions/qqbot/src/engine/api/messages.ts
+++ b/extensions/qqbot/src/engine/api/messages.ts
@@ -28,7 +28,7 @@ import {
 } from "./routes.js";
 import { TokenManager } from "./token.js";
 
-export interface MessageApiConfig {
+interface MessageApiConfig {
   /** Whether the QQ Bot has markdown permission. */
   markdownSupport: boolean;
   /** Logger for diagnostics. */
diff --git a/extensions/qqbot/src/engine/api/retry.ts b/extensions/qqbot/src/engine/api/retry.ts
index 623ac3d2327..cc159a75f72 100644
--- a/extensions/qqbot/src/engine/api/retry.ts
+++ b/extensions/qqbot/src/engine/api/retry.ts
@@ -14,7 +14,7 @@ import type { EngineLogger } from "../types.js";
 import { formatErrorMessage } from "../utils/format.js";
 
 /** Standard retry policy with exponential or fixed backoff. */
-export interface RetryPolicy {
+interface RetryPolicy {
   /** Maximum retry attempts (excluding the initial attempt). */
   maxRetries: number;
   /** Base delay in milliseconds. */
@@ -36,7 +36,7 @@ export interface RetryPolicy {
  * the standard retry loop into a tight fixed-interval loop bounded
  * only by the total timeout.
  */
-export interface PersistentRetryPolicy {
+interface PersistentRetryPolicy {
   /** Total timeout in milliseconds for the persistent retry loop. */
   timeoutMs: number;
   /** Fixed interval between retries in milliseconds. */
diff --git a/extensions/qqbot/src/engine/api/token.ts b/extensions/qqbot/src/engine/api/token.ts
index 468cda3d46e..c4b9d57179e 100644
--- a/extensions/qqbot/src/engine/api/token.ts
+++ b/extensions/qqbot/src/engine/api/token.ts
@@ -17,7 +17,7 @@ interface CachedToken {
   appId: string;
 }
 
-export interface BackgroundRefreshOptions {
+interface BackgroundRefreshOptions {
   refreshAheadMs?: number;
   randomOffsetMs?: number;
   minRefreshIntervalMs?: number;
diff --git a/extensions/qqbot/src/engine/config/credentials.ts b/extensions/qqbot/src/engine/config/credentials.ts
index 5320c9d4617..ba99de10bd4 100644
--- a/extensions/qqbot/src/engine/config/credentials.ts
+++ b/extensions/qqbot/src/engine/config/credentials.ts
@@ -12,7 +12,7 @@ import { DEFAULT_ACCOUNT_ID } from "./resolve.js";
 
 // ---- Logout: clear all credential fields for an account ----
 
-export interface ClearCredentialsResult {
+interface ClearCredentialsResult {
   nextCfg: Record<string, unknown>;
   cleared: boolean;
   changed: boolean;
diff --git a/extensions/qqbot/src/engine/config/group.ts b/extensions/qqbot/src/engine/config/group.ts
index 26e2f091625..5b67515cf4b 100644
--- a/extensions/qqbot/src/engine/config/group.ts
+++ b/extensions/qqbot/src/engine/config/group.ts
@@ -24,10 +24,10 @@ import { resolveAccountBase } from "./resolve.js";
  *                 back to its built-in restricted palette.
  * - `none`:       deny all tools.
  */
-export type GroupToolPolicy = "full" | "restricted" | "none";
+type GroupToolPolicy = "full" | "restricted" | "none";
 
 /** Per-group configuration — everything that may be overridden per group. */
-export interface GroupConfig {
+interface GroupConfig {
   /** Whether the bot requires @mention to respond. Defaults to true. */
   requireMention: boolean;
   /**
@@ -225,7 +225,7 @@ export function resolveGroupName(
  * (which depend on `agentId`, not on the group itself) and a
  * pre-computed display name for logging.
  */
-export interface GroupSettings {
+interface GroupSettings {
   /** Merged group config (specific > wildcard > defaults). */
   config: GroupConfig;
   /** Display name — `config.name` or the first 8 chars of the openid. */
diff --git a/extensions/qqbot/src/engine/config/resolve.ts b/extensions/qqbot/src/engine/config/resolve.ts
index 15db5865e95..d061cdeb633 100644
--- a/extensions/qqbot/src/engine/config/resolve.ts
+++ b/extensions/qqbot/src/engine/config/resolve.ts
@@ -41,7 +41,7 @@ interface QQBotChannelConfig {
  *
  * The outer config.ts layer extends this with clientSecret / secretSource.
  */
-export interface ResolvedAccountBase {
+interface ResolvedAccountBase {
   accountId: string;
   name?: string;
   enabled: boolean;
@@ -171,7 +171,7 @@ export function resolveAccountBase(
 
 // ---- Account config apply ----
 
-export interface ApplyAccountInput {
+interface ApplyAccountInput {
   appId?: string;
   clientSecret?: string;
   clientSecretFile?: string;
@@ -239,7 +239,7 @@ export function applyAccountConfig(
 // ---- Account status helpers ----
 
 /** Resolved account shape expected by isAccountConfigured / describeAccount. */
-export interface AccountSnapshot {
+interface AccountSnapshot {
   accountId: string;
   name?: string;
   enabled: boolean;
diff --git a/extensions/qqbot/src/engine/config/setup-logic.ts b/extensions/qqbot/src/engine/config/setup-logic.ts
index 44a03254ca2..7206c4cb0f1 100644
--- a/extensions/qqbot/src/engine/config/setup-logic.ts
+++ b/extensions/qqbot/src/engine/config/setup-logic.ts
@@ -10,7 +10,7 @@ import { applyAccountConfig } from "./resolve.js";
 import { DEFAULT_ACCOUNT_ID } from "./resolve.js";
 
 /** Parse an inline "appId:clientSecret" token string. */
-export function parseInlineToken(token: string): { appId: string; clientSecret: string } | null {
+function parseInlineToken(token: string): { appId: string; clientSecret: string } | null {
   const colonIdx = token.indexOf(":");
   if (colonIdx <= 0 || colonIdx === token.length - 1) {
     return null;
@@ -25,7 +25,7 @@ export function parseInlineToken(token: string): { appId: string; clientSecret:
   return { appId, clientSecret };
 }
 
-export interface SetupInput {
+interface SetupInput {
   token?: string;
   tokenFile?: string;
   useEnv?: boolean;