(Trained with Unsloth)

chat_template.jinja

@@ -18,16 +18,17 @@
 {%- for forward_message in messages %}
     {%- set index = (messages|length - 1) - loop.index0 %}
     {%- set message = messages[index] %}
+    {%- set current_content = message.content if message.content is not none else '' %}
     {%- set tool_start = '<tool_response>' %}
     {%- set tool_start_length = tool_start|length %}
-    {%- set start_of_message = message.content[:tool_start_length] %}
+    {%- set start_of_message = current_content[:tool_start_length] %}
     {%- set tool_end = '</tool_response>' %}
     {%- set tool_end_length = tool_end|length %}
-    {%- set start_pos = (message.content|length) - tool_end_length %}
+    {%- set start_pos = (current_content|length) - tool_end_length %}
     {%- if start_pos < 0 %}
         {%- set start_pos = 0 %}
     {%- endif %}
-    {%- set end_of_message = message.content[start_pos:] %}
+    {%- set end_of_message = current_content[start_pos:] %}
     {%- if ns.multi_step_tool and message.role == "user" and not(start_of_message == tool_start and end_of_message == tool_end) %}
         {%- set ns.multi_step_tool = false %}
         {%- set ns.last_query_index = index %}