some more for standard lib

src/wf_mcp/broker/service/builtins.py

@@ -18,7 +18,10 @@ from wf_authoring import (
     last_item_or_none,
     length,
     node,
+    pick_path,
     pick_key,
+    project_fields,
+    rename_fields,
     runtime_error,
     truthy,
 )
@@ -43,6 +46,9 @@ AUTHORING_STD_SPECS: tuple[NodeSpec[Any, Any], ...] = (
     default_if_none,
     constant,
     pick_key,
+    pick_path,
+    project_fields,
+    rename_fields,
     truthy,
     runtime_error,
     first_item,