backend/src/backend/scripts.py

@@ -424,9 +424,16 @@ async def create_script_record(
     workspace_id = context.workspace.workspace_id
     content_hash = hashlib.sha256(content).hexdigest()
     size_bytes = len(content)
-    if parent_ulid:
+    # Jupyter Contents API PUT does not create intermediate directories.
+    # Make sure the user's own subfolder exists at the Jupyter level before
+    # we try to write into it; on nested creates, also ensure the parent
+    # directory under it. ensure_directory is idempotent (GET-first pattern).
     try:
-            await runtime_client.ensure_directory(workspace_id, f"{user_id}/{parent_ulid}")
+        await runtime_client.ensure_directory(workspace_id, user_id)
+        if parent_ulid:
+            await runtime_client.ensure_directory(
+                workspace_id, f"{user_id}/{parent_ulid}"
+            )
     except RuntimeClientError as exc:
         raise HTTPException(
             status_code=exc.status_code,
@@ -826,9 +833,16 @@ async def create_workspace_directory(
     runtime_client = request.app.state.runtime_client
     workspace_id = context.workspace.workspace_id
 
-    if parent_ulid:
+    # Jupyter Contents API PUT does not create intermediate directories.
+    # Make sure the user's own subfolder exists at the Jupyter level before
+    # we try to write into it; on nested creates, also ensure the parent
+    # directory under it. ensure_directory is idempotent (GET-first pattern).
     try:
-            await runtime_client.ensure_directory(workspace_id, f"{user_id}/{parent_ulid}")
+        await runtime_client.ensure_directory(workspace_id, user_id)
+        if parent_ulid:
+            await runtime_client.ensure_directory(
+                workspace_id, f"{user_id}/{parent_ulid}"
+            )
     except RuntimeClientError as exc:
         raise HTTPException(
             status_code=exc.status_code,