diff --git a/.openclaw-sync/source.json b/.openclaw-sync/source.json
index 1c3f40670..4c6051444 100644
--- a/.openclaw-sync/source.json
+++ b/.openclaw-sync/source.json
@@ -1,5 +1,5 @@
 {
   "repository": "openclaw/openclaw",
-  "sha": "c89da2a60679a87ae8590f4cd9c590cfd08acc62",
-  "syncedAt": "2026-05-02T03:58:10.416Z"
+  "sha": "096b91cb3b5a9a58c85e555ad0a20992f6bc883b",
+  "syncedAt": "2026-05-02T03:58:15.834Z"
 }
diff --git a/docs/channels/slack.md b/docs/channels/slack.md
index 0949fb958..9ff573f4c 100644
--- a/docs/channels/slack.md
+++ b/docs/channels/slack.md
@@ -714,7 +714,7 @@ Notes:
     - `user:<id>` for DMs
     - `channel:<id>` for channels
 
-    Slack DMs are opened via Slack conversation APIs when sending to user targets.
+    Text/block-only Slack DMs can post directly to user IDs; file uploads and threaded sends open the DM via Slack conversation APIs first because those paths require a concrete conversation ID.
 
   </Accordion>
 </AccordionGroup>