updated chart agent factory

Author: Kanchan-Microsoft

src/api/agents/chart_agent_factory.py

@@ -22,22 +22,19 @@ async def create_agent(cls, config):
         Returns:
             dict: A dictionary containing the created 'agent' and its associated 'client'.
         """
-        instructions = '''You are an assistant that generates valid Chart.js v4.4.4 compatible JSON.
-        Your goal is to produce a JSON object that includes:
-        - `type` (chart type: bar, line, pie, etc.)
-        - `data` (with `labels` and `datasets`)
-        - `options` (to enhance rendering and clarity)
-        Important Rules:
-        - Combine both the user's query and the provided tabular/textual data to choose the best chart type.
-        - Only generate a chart if the data contains numbers.
-        - If no numbers are found, return:
-        {"error": "Chart cannot be generated due to lack of numerical data."}
-        - Do NOT include any explanations, markdown formatting, or tooltips — just clean JSON.
-        - Remove all trailing commas.
-        - Ensure the JSON can be parsed using `json.loads()` in Python.
-        - Ensure axis ticks are readable (adjust `ticks.padding`, `maxWidth`, etc.).
-        - Avoid bars being too narrow or cropped by setting reasonable `barPercentage` and `categoryPercentage`.
-        '''
+        instructions = """You are an assistant that helps generate valid chart data to be shown using chart.js with version 4.4.4 compatible.
+        Include chart type and chart options.
+        Pick the best chart type for given data.
+        Do not generate a chart unless the input contains some numbers. Otherwise return a message that Chart cannot be generated.
+        Only return a valid JSON output and nothing else.
+        Verify that the generated JSON can be parsed using json.loads.
+        Do not include tooltip callbacks in JSON.
+        Always make sure that the generated json can be rendered in chart.js.
+        Always remove any extra trailing commas.
+        Verify and refine that JSON should not have any syntax errors like extra closing brackets.
+        Ensure Y-axis labels are fully visible by increasing **ticks.padding**, **ticks.maxWidth**, or enabling word wrapping where necessary.
+        Ensure bars and data points are evenly spaced and not squished or cropped at **100%** resolution by maintaining appropriate **barPercentage** and **categoryPercentage** values."""
+            
 
         project_client = AIProjectClient(
             endpoint=config.ai_project_endpoint,

src/api/services/chat_service.py

@@ -91,7 +91,10 @@ async def process_rag_response(self, rag_response, query):
         Uses the ChartAgent directly (agentic call) to extract chart data for Chart.js.
         """
         try:
-            combined_input = f"{query}\n{rag_response}"
+            user_prompt = f"""Generate chart data for -
+            {query}
+            {rag_response}
+            """
 
             agent_info = await ChartAgentFactory.get_agent()
             agent = agent_info["agent"]
@@ -102,7 +105,7 @@ async def process_rag_response(self, rag_response, query):
             client.agents.messages.create(
                 thread_id=thread.id,
                 role=MessageRole.USER,
-                content=combined_input
+                content=user_prompt
             )
 
             run = client.agents.runs.create_and_process(