diff --git a/.openclaw-sync/source.json b/.openclaw-sync/source.json
index df4cfb166..c5692890c 100644
--- a/.openclaw-sync/source.json
+++ b/.openclaw-sync/source.json
@@ -1,5 +1,5 @@
 {
   "repository": "openclaw/openclaw",
-  "sha": "599ae7fed849b91fc01b79c247f3d6878cfec1c5",
-  "syncedAt": "2026-04-25T18:48:24.281Z"
+  "sha": "e9d9726f2d8f51847b3944db0935bd00b7b2130a",
+  "syncedAt": "2026-04-25T18:55:34.412Z"
 }
diff --git a/docs/reference/transcript-hygiene.md b/docs/reference/transcript-hygiene.md
index cc4b3ba75..d5b4c242e 100644
--- a/docs/reference/transcript-hygiene.md
+++ b/docs/reference/transcript-hygiene.md
@@ -133,6 +133,9 @@ external end-user instructions.
 
 - Tool result pairing repair and synthetic tool results.
 - Turn validation (merge consecutive user turns to satisfy strict alternation).
+- Older thinking-only assistant turns that must be stripped are replaced with
+  non-empty omitted-reasoning text so provider adapters do not drop the replay
+  turn.
 
 **Amazon Bedrock (Converse API)**
 
@@ -140,6 +143,8 @@ external end-user instructions.
   before replay. Bedrock Converse rejects assistant messages with `content: []`, so
   persisted assistant turns with `stopReason: "error"` and empty content are also
   repaired on disk before load.
+- Older thinking-only assistant turns that must be stripped are replaced with
+  non-empty omitted-reasoning text so the Converse replay keeps strict turn shape.
 - Replay filters OpenClaw delivery-mirror and gateway-injected assistant turns.
 - Image sanitization applies through the global rule.