From 4d7d3c345716607f4aaf428434990e3702161906 Mon Sep 17 00:00:00 2001
From: kauabh <56749351+kauabh@users.noreply.github.com>
Date: Thu, 29 Jan 2026 15:17:54 +0530
Subject: [PATCH 1/2] Update user_content initialization to None

Change user_content initialization from empty string to None for better clarity.
Added condition to skip evaluation when user input is None, as this is required for Evaluation
---
 src/google/adk/evaluation/evaluation_generator.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/google/adk/evaluation/evaluation_generator.py b/src/google/adk/evaluation/evaluation_generator.py
index 3656cec68c..acf0f33619 100644
--- a/src/google/adk/evaluation/evaluation_generator.py
+++ b/src/google/adk/evaluation/evaluation_generator.py
@@ -277,7 +277,7 @@ def convert_events_to_eval_invocations(
     invocations = []
     for invocation_id, events in events_by_invocation_id.items():
       final_response = None
-      user_content = ""
+      user_content = None
       invocation_timestamp = 0
       app_details = None
       if (
@@ -306,6 +306,11 @@ def convert_events_to_eval_invocations(
               if p.function_call or p.function_response or p.text:
                 events_to_add.append(event)
                 break
+                
+      if user_content is None:
+        # We skip because an evaluation case without user input 
+        # is generally not useful for testing/grading.
+        continue
 
       invocation_events = [
           InvocationEvent(author=e.author, content=e.content)

From d85d3f82f6ff73f9a3e3ed3df6afa3c7c4da27ce Mon Sep 17 00:00:00 2001
From: kauabh <56749351+kauabh@users.noreply.github.com>
Date: Thu, 29 Jan 2026 15:30:51 +0530
Subject: [PATCH 2/2] Update src/google/adk/evaluation/evaluation_generator.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
---
 src/google/adk/evaluation/evaluation_generator.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/google/adk/evaluation/evaluation_generator.py b/src/google/adk/evaluation/evaluation_generator.py
index acf0f33619..6dfee13068 100644
--- a/src/google/adk/evaluation/evaluation_generator.py
+++ b/src/google/adk/evaluation/evaluation_generator.py
@@ -306,7 +306,6 @@ def convert_events_to_eval_invocations(
               if p.function_call or p.function_response or p.text:
                 events_to_add.append(event)
                 break
-                
       if user_content is None:
         # We skip because an evaluation case without user input 
         # is generally not useful for testing/grading.