Update src/prompts.py

src/prompts.py

@@ -569,19 +569,6 @@ def build_query_understanding_prompt(
     Returns:
         Formatted query understanding prompt string.
     """
-    if history:
-        history_lines = []
-        for msg in history:
-            role = msg.get("role", "user").capitalize()
-            content = msg.get("content", "")
-            # Truncate long assistant responses to save tokens
-            if role == "Assistant" and len(content) > 200:
-                content = content[:200] + "..."
-            history_lines.append(f"{role}: {content}")
-        history_str = "\n".join(history_lines)
-    else:
-        history_str = "(No prior conversation)"
-
     if sql_schema_summary:
         sql_routing_block = _SQL_ROUTING_INSTRUCTIONS.format(
             schema_text=sql_schema_summary
@@ -600,7 +587,6 @@ def build_query_understanding_prompt(
 
     return QUERY_UNDERSTANDING_PROMPT_TEMPLATE.format(
         domain=domain,
-        history=history_str,
         query=query,
         sql_routing_block=sql_routing_block,
         kb_overview_block=kb_overview_block,