test(telegram): cover General topic typing fallback

CHANGELOG.md

@@ -12,6 +12,7 @@
 
 ### Fixes
 - Auto-reply: inline `/status` now honors allowlists (authorized stripped + replied inline; unauthorized leaves text for the agent) to match command gating tests.
+- Telegram: show typing indicator in General forum topics. (#779) — thanks @azade-c.
 
 ## 2026.1.11
 

src/telegram/bot.test.ts

@@ -1676,6 +1676,49 @@ describe("createTelegramBot", () => {
     });
   });
 
+  it("falls back to General topic thread id for typing in forums", async () => {
+    onSpy.mockReset();
+    sendChatActionSpy.mockReset();
+    const replySpy = replyModule.__replySpy as unknown as ReturnType<
+      typeof vi.fn
+    >;
+    replySpy.mockReset();
+
+    loadConfig.mockReturnValue({
+      telegram: {
+        groupPolicy: "open",
+        groups: { "*": { requireMention: false } },
+      },
+    });
+
+    createTelegramBot({ token: "tok" });
+    const handler = getOnHandler("message") as (
+      ctx: Record<string, unknown>,
+    ) => Promise<void>;
+
+    await handler({
+      message: {
+        chat: {
+          id: -1001234567890,
+          type: "supergroup",
+          title: "Forum Group",
+          is_forum: true,
+        },
+        from: { id: 12345, username: "testuser" },
+        text: "hello",
+        date: 1736380800,
+        message_id: 42,
+      },
+      me: { username: "clawdbot_bot" },
+      getFile: async () => ({ download: async () => new Uint8Array() }),
+    });
+
+    expect(replySpy).toHaveBeenCalledTimes(1);
+    expect(sendChatActionSpy).toHaveBeenCalledWith(-1001234567890, "typing", {
+      message_thread_id: 1,
+    });
+  });
+
   it("applies topic skill filters and system prompts", async () => {
     onSpy.mockReset();
     const replySpy = replyModule.__replySpy as unknown as ReturnType<

src/telegram/bot.ts

@@ -1,11 +1,4 @@
 // @ts-nocheck
-/**
- * Telegram uses message_thread_id=1 internally for the General topic in forum supergroups.
- * User-created topics have IDs based on message_id (typically millions+), so no collision risk.
- * See: https://core.telegram.org/bots/api#sendchataction
- */
-const TELEGRAM_GENERAL_TOPIC_ID = 1;
-
 import { sequentialize } from "@grammyjs/runner";
 import { apiThrottler } from "@grammyjs/transformer-throttler";
 import type { ApiClientOptions, Message } from "grammy";
@@ -79,6 +72,8 @@ import {
 } from "./pairing-store.js";
 import { resolveTelegramVoiceSend } from "./voice.js";
 
+const TELEGRAM_GENERAL_TOPIC_ID = 1;
+
 const PARSE_ERR_RE =
   /can't parse entities|parse entities|find end of the entity/i;