diff --git a/.openclaw-sync/source.json b/.openclaw-sync/source.json
index 94a279592..5936dbcb2 100644
--- a/.openclaw-sync/source.json
+++ b/.openclaw-sync/source.json
@@ -1,5 +1,5 @@
 {
   "repository": "openclaw/openclaw",
-  "sha": "757aee4cdd5d91b1f6564b5e2044a412466cd784",
-  "syncedAt": "2026-04-25T04:15:41.975Z"
+  "sha": "2f39e6df5991a7bdc1458614e72124ed4282e042",
+  "syncedAt": "2026-04-25T04:40:03.979Z"
 }
diff --git a/docs/tools/subagents.md b/docs/tools/subagents.md
index 236488356..5de2bcc36 100644
--- a/docs/tools/subagents.md
+++ b/docs/tools/subagents.md
@@ -214,6 +214,11 @@ Operational guidance:
 - Start child work once and wait for completion events instead of building poll
   loops around `sessions_list`, `sessions_history`, `/subagents list`, or
   `exec` sleep commands.
+- `sessions_list` and `/subagents list` keep child-session relationships focused
+  on live work: live children remain attached, ended children stay visible for a
+  short recent window, and stale store-only child links are ignored after their
+  freshness window. This prevents old `spawnedBy` / `parentSessionKey` metadata
+  from resurrecting ghost children after restart.
 - If a child completion event arrives after you already sent the final answer,
   the correct follow-up is the exact silent token `NO_REPLY` / `no_reply`.