fix(telegram): preserve inbound quote context and avoid QUOTE_TEXT_INVALID

src/telegram/bot.test.ts

@@ -967,6 +967,42 @@ describe("createTelegramBot", () => {
     expect(payload.ReplyToSender).toBe("unknown sender");
   });
 
+  it("uses external_reply quote text for partial replies", async () => {
+    onSpy.mockReset();
+    sendMessageSpy.mockReset();
+    const replySpy = replyModule.__replySpy as unknown as ReturnType<typeof vi.fn>;
+    replySpy.mockReset();
+
+    createTelegramBot({ token: "tok" });
+    const handler = getOnHandler("message") as (ctx: Record<string, unknown>) => Promise<void>;
+
+    await handler({
+      message: {
+        chat: { id: 7, type: "private" },
+        text: "Sure, see below",
+        date: 1736380800,
+        external_reply: {
+          message_id: 9002,
+          text: "Can you summarize this?",
+          from: { first_name: "Ada" },
+          quote: {
+            text: "summarize this",
+          },
+        },
+      },
+      me: { username: "openclaw_bot" },
+      getFile: async () => ({ download: async () => new Uint8Array() }),
+    });
+
+    expect(replySpy).toHaveBeenCalledTimes(1);
+    const payload = replySpy.mock.calls[0][0];
+    expect(payload.Body).toContain("[Quoting Ada id:9002]");
+    expect(payload.Body).toContain('"summarize this"');
+    expect(payload.ReplyToId).toBe("9002");
+    expect(payload.ReplyToBody).toBe("summarize this");
+    expect(payload.ReplyToSender).toBe("Ada");
+  });
+
   it("sends replies without native reply threading", async () => {
     onSpy.mockReset();
     sendMessageSpy.mockReset();

src/telegram/bot/delivery.test.ts

@@ -194,7 +194,7 @@ describe("deliverReplies", () => {
     );
   });
 
-  it("uses reply_parameters when quote text is provided", async () => {
+  it("uses reply_to_message_id when quote text is provided", async () => {
     const runtime = { error: vi.fn(), log: vi.fn() };
     const sendMessage = vi.fn().mockResolvedValue({
       message_id: 10,
@@ -217,10 +217,14 @@ describe("deliverReplies", () => {
       "123",
       expect.any(String),
       expect.objectContaining({
-        reply_parameters: {
-          message_id: 500,
-          quote: "quoted text",
-        },
+        reply_to_message_id: 500,
+      }),
+    );
+    expect(sendMessage).toHaveBeenCalledWith(
+      "123",
+      expect.any(String),
+      expect.not.objectContaining({
+        reply_parameters: expect.anything(),
       }),
     );
   });

src/telegram/bot/delivery.ts

@@ -484,16 +484,8 @@ function buildTelegramSendParams(opts?: {
 }): Record<string, unknown> {
   const threadParams = buildTelegramThreadParams(opts?.thread);
   const params: Record<string, unknown> = {};
-  const quoteText = opts?.replyQuoteText?.trim();
   if (opts?.replyToMessageId) {
-    if (quoteText) {
-      params.reply_parameters = {
-        message_id: Math.trunc(opts.replyToMessageId),
-        quote: quoteText,
-      };
-    } else {
-      params.reply_to_message_id = opts.replyToMessageId;
-    }
+    params.reply_to_message_id = opts.replyToMessageId;
   }
   if (threadParams) {
     params.message_thread_id = threadParams.message_thread_id;

src/telegram/bot/helpers.ts

@@ -226,31 +226,33 @@ export type TelegramReplyTarget = {
 
 export function describeReplyTarget(msg: Message): TelegramReplyTarget | null {
   const reply = msg.reply_to_message;
-  const quote = msg.quote;
+  const externalReply = msg.external_reply;
+  const quoteText = msg.quote?.text ?? reply?.quote?.text ?? externalReply?.quote?.text;
   let body = "";
   let kind: TelegramReplyTarget["kind"] = "reply";
 
-  if (quote?.text) {
-    body = quote.text.trim();
+  if (typeof quoteText === "string") {
+    body = quoteText.trim();
     if (body) {
       kind = "quote";
     }
   }
 
-  if (!body && reply) {
-    const replyBody = (reply.text ?? reply.caption ?? "").trim();
+  const replyLike = reply ?? externalReply;
+  if (!body && replyLike) {
+    const replyBody = (replyLike.text ?? replyLike.caption ?? "").trim();
     body = replyBody;
     if (!body) {
-      if (reply.photo) {
+      if (replyLike.photo) {
         body = "<media:image>";
-      } else if (reply.video) {
+      } else if (replyLike.video) {
         body = "<media:video>";
-      } else if (reply.audio || reply.voice) {
+      } else if (replyLike.audio || replyLike.voice) {
         body = "<media:audio>";
-      } else if (reply.document) {
+      } else if (replyLike.document) {
         body = "<media:document>";
       } else {
-        const locationData = extractTelegramLocation(reply);
+        const locationData = extractTelegramLocation(replyLike);
         if (locationData) {
           body = formatLocationText(locationData);
         }
@@ -260,11 +262,11 @@ export function describeReplyTarget(msg: Message): TelegramReplyTarget | null {
   if (!body) {
     return null;
   }
-  const sender = reply ? buildSenderName(reply) : undefined;
+  const sender = replyLike ? buildSenderName(replyLike) : undefined;
   const senderLabel = sender ?? "unknown sender";
 
   return {
-    id: reply?.message_id ? String(reply.message_id) : undefined,
+    id: replyLike?.message_id ? String(replyLike.message_id) : undefined,
     sender: senderLabel,
     body,
     kind,