diff --git a/extensions/telegram/src/auto-topic-label-config.ts b/extensions/telegram/src/auto-topic-label-config.ts
new file mode 100644
index 00000000000..0049aa75a30
--- /dev/null
+++ b/extensions/telegram/src/auto-topic-label-config.ts
@@ -0,0 +1,24 @@
+import type {
+  TelegramAccountConfig,
+  TelegramDirectConfig,
+} from "openclaw/plugin-sdk/config-runtime";
+
+export const AUTO_TOPIC_LABEL_DEFAULT_PROMPT =
+  "Generate a very short topic label (2-4 words, max 25 chars) for a chat conversation based on the user's first message below. No emoji. Use the same language as the message. Be concise and descriptive. Return ONLY the topic name, nothing else.";
+
+export function resolveAutoTopicLabelConfig(
+  directConfig?: TelegramDirectConfig["autoTopicLabel"],
+  accountConfig?: TelegramAccountConfig["autoTopicLabel"],
+): { enabled: true; prompt: string } | null {
+  const config = directConfig ?? accountConfig;
+  if (config === undefined || config === true) {
+    return { enabled: true, prompt: AUTO_TOPIC_LABEL_DEFAULT_PROMPT };
+  }
+  if (config === false || config.enabled === false) {
+    return null;
+  }
+  return {
+    enabled: true,
+    prompt: config.prompt?.trim() || AUTO_TOPIC_LABEL_DEFAULT_PROMPT,
+  };
+}
diff --git a/extensions/telegram/src/auto-topic-label.test.ts b/extensions/telegram/src/auto-topic-label.test.ts
index 0ff80793dbd..b5ecaf4a7c7 100644
--- a/extensions/telegram/src/auto-topic-label.test.ts
+++ b/extensions/telegram/src/auto-topic-label.test.ts
@@ -8,9 +8,9 @@ vi.mock("openclaw/plugin-sdk/reply-runtime", () => ({
 
 import {
   AUTO_TOPIC_LABEL_DEFAULT_PROMPT,
-  generateTelegramTopicLabel,
   resolveAutoTopicLabelConfig,
-} from "./auto-topic-label.js";
+} from "./auto-topic-label-config.js";
+import { generateTelegramTopicLabel } from "./auto-topic-label.js";
 
 describe("resolveAutoTopicLabelConfig", () => {
   it("returns enabled with default prompt when configs are undefined", () => {
diff --git a/extensions/telegram/src/auto-topic-label.ts b/extensions/telegram/src/auto-topic-label.ts
index 004509b2b47..22095ebf5d0 100644
--- a/extensions/telegram/src/auto-topic-label.ts
+++ b/extensions/telegram/src/auto-topic-label.ts
@@ -1,29 +1,9 @@
-import type {
-  OpenClawConfig,
-  TelegramAccountConfig,
-  TelegramDirectConfig,
-} from "openclaw/plugin-sdk/config-runtime";
+import type { OpenClawConfig } from "openclaw/plugin-sdk/config-runtime";
 import { generateConversationLabel } from "openclaw/plugin-sdk/reply-runtime";
-
-export const AUTO_TOPIC_LABEL_DEFAULT_PROMPT =
-  "Generate a very short topic label (2-4 words, max 25 chars) for a chat conversation based on the user's first message below. No emoji. Use the same language as the message. Be concise and descriptive. Return ONLY the topic name, nothing else.";
-
-export function resolveAutoTopicLabelConfig(
-  directConfig?: TelegramDirectConfig["autoTopicLabel"],
-  accountConfig?: TelegramAccountConfig["autoTopicLabel"],
-): { enabled: true; prompt: string } | null {
-  const config = directConfig ?? accountConfig;
-  if (config === undefined || config === true) {
-    return { enabled: true, prompt: AUTO_TOPIC_LABEL_DEFAULT_PROMPT };
-  }
-  if (config === false || config.enabled === false) {
-    return null;
-  }
-  return {
-    enabled: true,
-    prompt: config.prompt?.trim() || AUTO_TOPIC_LABEL_DEFAULT_PROMPT,
-  };
-}
+export {
+  AUTO_TOPIC_LABEL_DEFAULT_PROMPT,
+  resolveAutoTopicLabelConfig,
+} from "./auto-topic-label-config.js";
 
 export async function generateTelegramTopicLabel(params: {
   userMessage: string;
diff --git a/extensions/telegram/src/bot-message-dispatch.test.ts b/extensions/telegram/src/bot-message-dispatch.test.ts
index 5010550823d..8277db0a7d6 100644
--- a/extensions/telegram/src/bot-message-dispatch.test.ts
+++ b/extensions/telegram/src/bot-message-dispatch.test.ts
@@ -5,7 +5,7 @@ import { resolveMarkdownTableMode as resolveMarkdownTableModeRuntime } from "../
 import { resolveSessionStoreEntry as resolveSessionStoreEntryRuntime } from "../../../src/config/sessions/store.js";
 import type { OpenClawConfig } from "../../../src/config/types.openclaw.js";
 import { getAgentScopedMediaLocalRoots as getAgentScopedMediaLocalRootsRuntime } from "../../../src/media/local-roots.js";
-import { resolveAutoTopicLabelConfig as resolveAutoTopicLabelConfigRuntime } from "./auto-topic-label.js";
+import { resolveAutoTopicLabelConfig as resolveAutoTopicLabelConfigRuntime } from "./auto-topic-label-config.js";
 import type { TelegramBotDeps } from "./bot-deps.js";
 import {
   createSequencedTestDraftStream,
diff --git a/extensions/telegram/src/bot.create-telegram-bot.test-harness.ts b/extensions/telegram/src/bot.create-telegram-bot.test-harness.ts
index 613e53bd176..6b7d803bc9c 100644
--- a/extensions/telegram/src/bot.create-telegram-bot.test-harness.ts
+++ b/extensions/telegram/src/bot.create-telegram-bot.test-harness.ts
@@ -1,10 +1,5 @@
 import type { OpenClawConfig } from "openclaw/plugin-sdk/config-runtime";
-import {
-  createReplyDispatcher,
-  resetInboundDedupe,
-  type GetReplyOptions,
-  type MsgContext,
-} from "openclaw/plugin-sdk/reply-runtime";
+import type { GetReplyOptions, MsgContext } from "openclaw/plugin-sdk/reply-runtime";
 import type { MockFn } from "openclaw/plugin-sdk/testing";
 import { beforeEach, vi } from "vitest";
 import type { TelegramBotDeps } from "./bot-deps.js";
@@ -31,12 +26,6 @@ type ReplyPayloadLike = {
   replyToId?: string;
 };
 
-const _EMPTY_REPLY_COUNTS: DispatchReplyWithBufferedBlockDispatcherResult["counts"] = {
-  block: 0,
-  final: 0,
-  tool: 0,
-};
-
 const { sessionStorePath } = vi.hoisted(() => ({
   sessionStorePath: `/tmp/openclaw-telegram-${process.pid}-${process.env.VITEST_POOL_ID ?? "0"}.json`,
 }));
@@ -133,29 +122,22 @@ async function dispatchHarnessReplies(
   const reply = await runReply(params);
   const payloads: ReplyPayloadLike[] =
     reply === undefined ? [] : Array.isArray(reply) ? reply : [reply];
-  const dispatcher = createReplyDispatcher({
-    deliver: async (payload, info) => {
-      await params.dispatcherOptions.deliver?.(payload, info);
-    },
-    responsePrefix: params.dispatcherOptions.responsePrefix,
-    responsePrefixContextProvider: params.dispatcherOptions.responsePrefixContextProvider,
-    responsePrefixContext: params.dispatcherOptions.responsePrefixContext,
-    onHeartbeatStrip: params.dispatcherOptions.onHeartbeatStrip,
-    onSkip: (payload, info) => {
-      params.dispatcherOptions.onSkip?.(payload, info);
-    },
-    onError: (err, info) => {
-      params.dispatcherOptions.onError?.(err, info);
-    },
-  });
   let finalCount = 0;
   for (const payload of payloads) {
-    if (dispatcher.sendFinalReply(payload)) {
+    const text =
+      typeof payload.text === "string" &&
+      params.dispatcherOptions.responsePrefix &&
+      !payload.text.startsWith(params.dispatcherOptions.responsePrefix)
+        ? `${params.dispatcherOptions.responsePrefix} ${payload.text}`
+        : payload.text;
+    const finalPayload = text === payload.text ? payload : { ...payload, text };
+    try {
+      await params.dispatcherOptions.deliver?.(finalPayload, { kind: "final" });
       finalCount += 1;
+    } catch (err) {
+      params.dispatcherOptions.onError?.(err, { kind: "final" });
     }
   }
-  dispatcher.markComplete();
-  await dispatcher.waitForIdle();
   return {
     queuedFinal: finalCount > 0,
     counts: {
@@ -472,7 +454,6 @@ export function makeForumGroupMessageCtx(params?: {
 }
 
 beforeEach(() => {
-  resetInboundDedupe();
   loadConfig.mockReset();
   loadConfig.mockReturnValue(DEFAULT_TELEGRAM_TEST_CONFIG);
   sessionStoreEntries.value = {};
diff --git a/extensions/telegram/src/bot.create-telegram-bot.test.ts b/extensions/telegram/src/bot.create-telegram-bot.test.ts
index fceb0da8546..afa2ef3401f 100644
--- a/extensions/telegram/src/bot.create-telegram-bot.test.ts
+++ b/extensions/telegram/src/bot.create-telegram-bot.test.ts
@@ -1,5 +1,4 @@
 import type { GetReplyOptions, MsgContext } from "openclaw/plugin-sdk/reply-runtime";
-import { withEnvAsync } from "openclaw/plugin-sdk/testing";
 import { afterAll, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
 import { escapeRegExp, formatEnvelopeTimestamp } from "../../../test/helpers/envelope-timestamp.js";
 const harness = await import("./bot.create-telegram-bot.test-harness.js");
@@ -124,6 +123,29 @@ function mockTelegramConfigWrites() {
   return vi.spyOn(configRuntime, "writeConfigFile").mockResolvedValue(undefined);
 }
 
+async function withEnvAsync(env: Record<string, string | undefined>, fn: () => Promise<void>) {
+  const previous = new Map<string, string | undefined>();
+  for (const [key, value] of Object.entries(env)) {
+    previous.set(key, process.env[key]);
+    if (value === undefined) {
+      delete process.env[key];
+    } else {
+      process.env[key] = value;
+    }
+  }
+  try {
+    await fn();
+  } finally {
+    for (const [key, value] of previous) {
+      if (value === undefined) {
+        delete process.env[key];
+      } else {
+        process.env[key] = value;
+      }
+    }
+  }
+}
+
 describe("createTelegramBot", () => {
   beforeAll(() => {
     process.env.TZ = "UTC";