diff --git a/neps/api.py b/neps/api.py
index d035a5b5..e1579624 100644
--- a/neps/api.py
+++ b/neps/api.py
@@ -98,8 +98,11 @@ def write_loss_and_config(file_handle, loss_, config_id_, config_):
 def run(
     run_pipeline: Callable,
     root_directory: str | Path,
-    pipeline_space: dict[str, Parameter | CS.ConfigurationSpace] | str | Path |
-                    CS.ConfigurationSpace | None = None,
+    pipeline_space: dict[str, Parameter | CS.ConfigurationSpace]
+    | str
+    | Path
+    | CS.ConfigurationSpace
+    | None = None,
     overwrite_working_directory: bool = False,
     post_run_summary: bool = False,
     development_stage_id=None,
@@ -277,13 +280,18 @@ def run(
         pre_load_hooks=pre_load_hooks,
     )
 
-    if post_run_summary:
+    if post_run_summary and development_stage_id:
+        optimization_dir = Path(root_directory) / f"dev_{development_stage_id}"
+        post_run_csv(optimization_dir, logger)
+    elif post_run_summary:
         post_run_csv(root_directory, logger)
 
 
 def _run_args(
     searcher_info: dict,
     pipeline_space: dict[str, Parameter | CS.ConfigurationSpace]
+    | str
+    | Path
     | CS.ConfigurationSpace
     | None = None,
     max_cost_total: int | float | None = None,