diff --git a/rdagent/components/coder/data_science/workflow/eval_tests/submission_check.txt b/rdagent/components/coder/data_science/workflow/eval_tests/submission_check.txt
index b0c9608d..ba9cf4a5 100644
--- a/rdagent/components/coder/data_science/workflow/eval_tests/submission_check.txt
+++ b/rdagent/components/coder/data_science/workflow/eval_tests/submission_check.txt
@@ -1,9 +1,24 @@
 from pathlib import Path
 import pandas as pd
 
+
+"""
+find . | grep -i sample | grep -i submission | grep -v sample_submission.csv | grep -v zip_files  | grep -v 'sample/'
+./denoising-dirty-documents/sampleSubmission.csv
+./the-icml-2013-whale-challenge-right-whale-redux/sampleSubmission.csv
+./text-normalization-challenge-russian-language/ru_sample_submission_2.csv.zip
+./text-normalization-challenge-russian-language/ru_sample_submission_2.csv
+./random-acts-of-pizza/sampleSubmission.csv
+./text-normalization-challenge-english-language/en_sample_submission_2.csv.zip
+./text-normalization-challenge-english-language/en_sample_submission_2.csv
+./detecting-insults-in-social-commentary/sample_submission_null.csv
+"""
+
 # Find sample submission file dynamically
 input_dir = Path("/kaggle/input")
-sample_submission_files = list(input_dir.glob("*sample_submission*.csv"))
+# Look for common variations of sample submission filenames
+sample_submission_files = list(input_dir.glob("*sample_submission*.csv")) + \
+                         list(input_dir.glob("*sampleSubmission*.csv"))
 
 if not sample_submission_files:
     print("Error: No sample submission file found in /kaggle/input/")
diff --git a/rdagent/utils/env.py b/rdagent/utils/env.py
index 1d157e73..e529767f 100644
--- a/rdagent/utils/env.py
+++ b/rdagent/utils/env.py
@@ -46,6 +46,7 @@ class Env(Generic[ASpecificBaseModel]):
     """
 
     conf: ASpecificBaseModel  # different env have different conf.
+    # last_exit_code:  # TODO: get the more concrete information about the exit code.
 
     def __init__(self, conf: ASpecificBaseModel):
         self.conf = conf