From f3ae8127daa48743bcfa5426b710f8e6a74e1c36 Mon Sep 17 00:00:00 2001
From: kumarabhirup <hey@kumareth.com>
Date: Sat, 21 Feb 2026 12:32:10 -0800
Subject: [PATCH] web: filter leaked NO_REPLY tokens in chat message display

---
 apps/web/app/components/chat-message.tsx | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/apps/web/app/components/chat-message.tsx b/apps/web/app/components/chat-message.tsx
index b97a7158a27..e97999e91dd 100644
--- a/apps/web/app/components/chat-message.tsx
+++ b/apps/web/app/components/chat-message.tsx
@@ -31,6 +31,18 @@ const ReportCard = dynamic(
 	},
 );
 
+/* ─── Silent-reply leak filter ─── */
+
+const _SILENT_TOKEN = "NO_REPLY";
+
+function isLeakedSilentToken(text: string): boolean {
+	const t = text.trim();
+	if (!t) {return false;}
+	if (new RegExp(`^${_SILENT_TOKEN}\\W*$`).test(t)) {return true;}
+	if (_SILENT_TOKEN.startsWith(t) && t.length >= 2 && t.length < _SILENT_TOKEN.length) {return true;}
+	return false;
+}
+
 /* ─── Part grouping ─── */
 
 type MessageSegment =
@@ -77,8 +89,9 @@ function groupParts(parts: UIMessage["parts"]): MessageSegment[] {
 
 	for (const part of parts) {
 		if (part.type === "text") {
-			flush(true);
 			const text = (part as { type: "text"; text: string }).text;
+			if (isLeakedSilentToken(text)) { continue; }
+			flush(true);
 			if (hasReportBlocks(text)) {
 				segments.push(
 					...(splitReportBlocks(text) as MessageSegment[]),