Enha: extract first valid recipient from knownto

bot.go

@@ -1305,15 +1305,17 @@ func init() {
 	go chatWatcher(ctx)
 }
 
-// triggerPrivateMessageResponses checks if a message was sent privately to specific characters
-// and triggers those non-user characters to respond
-func triggerPrivateMessageResponses(msg *models.RoleMsg) {
+func getValidKnowToRecipient(msg *models.RoleMsg) (string, bool) {
 	if cfg == nil || !cfg.CharSpecificContextEnabled {
-		return
+		return "", false
 	}
-	userCharacter := cfg.UserRole
-	if cfg.WriteNextMsgAs != "" {
-		userCharacter = cfg.WriteNextMsgAs
+	// case where all roles are in the tag => public message
+	cr := listChatRoles()
+	slices.Sort(cr)
+	slices.Sort(msg.KnownTo)
+	if slices.Equal(cr, msg.KnownTo) {
+		logger.Info("got msg with tag mentioning every role")
+		return "", false
 	}
 	// Check each character in the KnownTo list
 	for _, recipient := range msg.KnownTo {
@@ -1323,20 +1325,31 @@ func triggerPrivateMessageResponses(msg *models.RoleMsg) {
 		}
 		// Skip if this is the user character (user handles their own turn)
 		// If user is in KnownTo, stop processing - it's the user's turn
-		if recipient == cfg.UserRole || recipient == userCharacter {
-			return // user in known_to => user's turn
+		if recipient == cfg.UserRole || recipient == cfg.WriteNextMsgAs {
+			return "", false
 		}
-		// Trigger the recipient character to respond
-		triggerMsg := recipient + ":\n"
-		// Send empty message so LLM continues naturally from the conversation
-		crr := &models.ChatRoundReq{
-			UserMsg: triggerMsg,
-			Role:    recipient,
-			Resume:  true,
-		}
-		fmt.Fprintf(textView, "\n[-:-:b](%d) ", len(chatBody.Messages))
-		fmt.Fprint(textView, roleToIcon(recipient))
-		fmt.Fprint(textView, "[-:-:-]\n")
-		chatRoundChan <- crr
+		return recipient, true
 	}
+	return "", false
+}
+
+// triggerPrivateMessageResponses checks if a message was sent privately to specific characters
+// and triggers those non-user characters to respond
+func triggerPrivateMessageResponses(msg *models.RoleMsg) {
+	recipient, ok := getValidKnowToRecipient(msg)
+	if !ok || recipient == "" {
+		return
+	}
+	// Trigger the recipient character to respond
+	triggerMsg := recipient + ":\n"
+	// Send empty message so LLM continues naturally from the conversation
+	crr := &models.ChatRoundReq{
+		UserMsg: triggerMsg,
+		Role:    recipient,
+		Resume:  true,
+	}
+	fmt.Fprintf(textView, "\n[-:-:b](%d) ", len(chatBody.Messages))
+	fmt.Fprint(textView, roleToIcon(recipient))
+	fmt.Fprint(textView, "[-:-:-]\n")
+	chatRoundChan <- crr
 }