From c571628d891f0d038115de05af8207ca25b916f9 Mon Sep 17 00:00:00 2001
From: Maik <maik@subshell.com>
Date: Mon, 26 Jan 2026 17:11:49 +0000
Subject: [PATCH] fix(mattermost): ensure replies create threads in channels
 (except DMs)

---
 extensions/mattermost/src/mattermost/monitor.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions/mattermost/src/mattermost/monitor.ts b/extensions/mattermost/src/mattermost/monitor.ts
index 96c5971a5..7ee16f755 100644
--- a/extensions/mattermost/src/mattermost/monitor.ts
+++ b/extensions/mattermost/src/mattermost/monitor.ts
@@ -516,7 +516,7 @@ export async function monitorMattermostProvider(opts: MonitorMattermostOpts = {}
     });
 
     const baseSessionKey = route.sessionKey;
-    const threadRootId = post.root_id?.trim() || undefined;
+    const threadRootId = post.root_id?.trim() || (kind !== "dm" ? post.id : undefined);
     const threadKeys = resolveThreadSessionKeys({
       baseSessionKey,
       threadId: threadRootId,