diff --git a/package.json b/package.json
index 0d56cce..e14a92b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "telegram-codex-bot",
-  "version": "0.1.12",
+  "version": "0.1.13",
   "description": "Telegram bot powered by the local Codex CLI — zero-dependency, pm2-managed, with a built-in PM2 web viewer",
   "license": "MIT",
   "type": "commonjs",
diff --git a/src/bot.js b/src/bot.js
index 64653a8..8fdd7ed 100644
--- a/src/bot.js
+++ b/src/bot.js
@@ -210,13 +210,19 @@ function startBot(config) {
     return null;
   }
 
-  function buildPrompt(message, content) {
+  // 使用者引用／回覆的文字（圈選引用優先，其次是被回覆的整則訊息）
+  function quotedTextOf(message) {
+    return message.quote?.text || message.reply_to_message?.text || message.reply_to_message?.caption || '';
+  }
+
+  function buildPrompt(message, content, { includeOwnReply = false } = {}) {
     const from = message.from || {};
     const name = [from.first_name, from.last_name].filter(Boolean).join(' ') || '未知使用者';
     const sender = from.username ? `${name}（@${from.username}）` : name;
     const parts = [OUTBOX_RULE];
     const replied = message.reply_to_message;
-    if (replied && replied.from?.id !== botId && (replied.text || replied.caption)) {
+    // 回覆我自己的訊息通常已在會話記憶裡，不重複貼；但使用者沒打字只回覆時例外（那就是輸入本身）
+    if (replied && (includeOwnReply || replied.from?.id !== botId) && (replied.text || replied.caption)) {
       parts.push(`【被回覆的訊息】\n${replied.text || replied.caption}`);
     }
     if (message.quote?.text) {
@@ -291,7 +297,9 @@ function startBot(config) {
       await t.sendMessage(chatId, statusText(chatId), { replyTo: message.message_id });
       return;
     }
-    if (!content && !photo) {
+    // 只有「引用／回覆 + tag 我」沒打字：直接把引用內容當作這次的輸入
+    const quotedOnly = !content && !photo && !!quotedTextOf(message);
+    if (!content && !photo && !quotedOnly) {
       await t.sendMessage(chatId, HELP_TEXT, { replyTo: message.message_id });
       return;
     }
@@ -324,7 +332,10 @@ function startBot(config) {
         images.push(dest);
       }
 
-      const prompt = buildPrompt(message, content || '（使用者只傳了圖片，請描述並依上下文處理）');
+      const fallback = quotedOnly
+        ? '（使用者沒有輸入文字，只引用了上面的內容並 tag 我：請直接把引用內容當作這次的輸入來處理）'
+        : '（使用者只傳了圖片，請描述並依上下文處理）';
+      const prompt = buildPrompt(message, content || fallback, { includeOwnReply: quotedOnly });
       const existing = sessionKey ? sessions.get(sessionKey) : null;
       const turnStart = Date.now();