diff --git a/src/google/adk/flows/llm_flows/_code_execution.py b/src/google/adk/flows/llm_flows/_code_execution.py
index bfa84db69d..05fc00cdfc 100644
--- a/src/google/adk/flows/llm_flows/_code_execution.py
+++ b/src/google/adk/flows/llm_flows/_code_execution.py
@@ -76,6 +76,14 @@ class DataFileUtil:
 _DATA_FILE_HELPER_LIB = '''
 import pandas as pd
 
+def crop(s: str, max_chars: int = 64) -> str:
+    """Crops a string to max_chars characters."""
+    if len(s) <= max_chars:
+        return s
+    if max_chars >= 3:
+        return s[:max_chars - 3] + '...'
+    return s[:max_chars]
+
 def explore_df(df: pd.DataFrame) -> None:
   """Prints some information about a pandas DataFrame."""