diff --git a/vault_sync_daemon.py b/vault_sync_daemon.py
index ad1e120..0595726 100644
--- a/vault_sync_daemon.py
+++ b/vault_sync_daemon.py
@@ -167,11 +167,24 @@ def _under_data_exempt(rel_path):
 
 def handle_vault_created(path):
     """
-    A new AREA/CATEGORY/ID-shaped folder appeared in /vault (e.g. created
-    via Obsidian, not the `vault` CLI) with no /data counterpart yet.
-    Mirror it: create the matching empty folder in /data. This is the
-    forward-create leg that was missing — only move/delete were wired up
-    originally, so a brand-new folder (like "R.6 Test") never propagated.
+    A new folder appeared in /vault (e.g. created via Obsidian, not the
+    `vault` CLI). Mirror it: create the matching empty folder in /data.
+    This is the forward-create leg that was missing — only move/delete
+    were wired up originally, so a brand-new folder (like "R.6 Test")
+    never propagated.
+
+    Full 1:1 structural mirror, NOT limited to JD-shaped (AREA/CATEGORY/ID)
+    names (confirmed with Ryan 2026-09-19): once inside an ID's territory
+    Ryan organizes arbitrary sub-structure (e.g. dated trip folders under
+    an ID like "F.21.21 All short trips"), and expects /data to match that
+    structure too, not just the JD skeleton. The only safety gate is that
+    the /data PARENT must already exist — this naturally still excludes
+    "0 System area" (which has no /data root at all, by design) and any
+    other genuinely orphaned branch, without needing a name-shape check.
+    Reverse (/data -> /vault) intentionally keeps its stricter JD-shape-only
+    gate (see handle_data_created) — /data is the hand-sorted blob side
+    with far more incidental subfolders, so stubbing a /vault note for
+    every one of those would be noise; there's no such asymmetry forward.
     """
     if not os.path.isdir(path):
         return
@@ -180,9 +193,8 @@ def handle_vault_created(path):
     if not _debounced("vault_created", path):
         return
     rel = os.path.relpath(path, VAULT)
-    base = os.path.basename(path)
-    if not (ID_RE.match(base) or CAT_RE.match(base) or vl.AREA_RE.match(base)):
-        return  # not a JD-shaped folder — ignore (e.g. "Documents" subfolder)
+    if rel.split(os.sep)[0] == vl.SYSTEM_META:
+        return  # "0 System area" never mirrors to /data, by design
     data_path = os.path.join(DATA, rel)
     if os.path.isdir(data_path):
         return  # already mirrored (duplicate event or pre-existing)