diff --git a/internal/channel/adapters/telegram/stream.go b/internal/channel/adapters/telegram/stream.go
index d278fdff..19d3674b 100644
--- a/internal/channel/adapters/telegram/stream.go
+++ b/internal/channel/adapters/telegram/stream.go
@@ -401,10 +401,11 @@ func (s *telegramOutboundStream) pushFinal(ctx context.Context, event channel.St
 
 	msg := event.Final.Message
 	finalText := bufText
-	if finalText == "" && !s.isPrivateChat {
-		finalText = strings.TrimSpace(msg.PlainText())
+	if authoritative := strings.TrimSpace(msg.PlainText()); authoritative != "" {
+		if !s.isPrivateChat || bufText != "" {
+			finalText = authoritative
+		}
 	}
-
 	// Convert markdown to Telegram HTML for the final message.
 	formatted, pm := formatTelegramOutput(finalText, msg.Format)
 	if pm != "" {
diff --git a/internal/conversation/flow/assistant_output.go b/internal/conversation/flow/assistant_output.go
index 2f011174..ed18ef18 100644
--- a/internal/conversation/flow/assistant_output.go
+++ b/internal/conversation/flow/assistant_output.go
@@ -16,6 +16,10 @@ func ExtractAssistantOutputs(messages []conversation.ModelMessage) []conversatio
 		if msg.Role != "assistant" {
 			continue
 		}
+		// skip tool call tips content.
+		if hasToolCallContent(msg) {
+			continue
+		}
 		content := strings.TrimSpace(msg.TextContent())
 		parts := filterContentParts(msg.ContentParts())
 		if content == "" && len(parts) == 0 {
@@ -26,12 +30,28 @@ func ExtractAssistantOutputs(messages []conversation.ModelMessage) []conversatio
 	return outputs
 }
 
+func hasToolCallContent(msg conversation.ModelMessage) bool {
+	if len(msg.ToolCalls) > 0 {
+		return true
+	}
+	for _, p := range msg.ContentParts() {
+		if p.Type == "tool-call" {
+			return true
+		}
+	}
+	return false
+}
+
 func filterContentParts(parts []conversation.ContentPart) []conversation.ContentPart {
 	if len(parts) == 0 {
 		return nil
 	}
 	filtered := make([]conversation.ContentPart, 0, len(parts))
 	for _, p := range parts {
+		// Ignore Reasoning parts
+		if p.Type == "reasoning" {
+			continue
+		}
 		if p.HasValue() {
 			filtered = append(filtered, p)
 		}
diff --git a/internal/conversation/types.go b/internal/conversation/types.go
index cf1cdf41..ce05005c 100644
--- a/internal/conversation/types.go
+++ b/internal/conversation/types.go
@@ -115,6 +115,10 @@ func (m ModelMessage) TextContent() string {
 	if err := json.Unmarshal(m.Content, &parts); err == nil {
 		texts := make([]string, 0, len(parts))
 		for _, p := range parts {
+			// Ignore Reasoning parts
+			if p.Type == "reasoning" {
+				continue
+			}
 			if strings.TrimSpace(p.Text) != "" {
 				texts = append(texts, p.Text)
 			}