Update app.py

app.py

@@ -60,6 +60,7 @@ biogpt_llm = BioGPTLLM()
 def make_agents():
     diagnostician = Agent(
         role="Medical Diagnostician",
+        backstory="You are a medical expert specializing in diagnosing patients based on symptoms.",
         goal="Produce a differential diagnosis list for the patient.",
         llm=biogpt_llm,
         verbose=False,
@@ -67,6 +68,7 @@ def make_agents():
     )
     treatment_planner = Agent(
         role="Treatment Planner",
+        backstory="You are a medical expert specializing in suggesting treatments for patients.",
         goal="Recommend evidence-based treatment for the patient.",
         llm=biogpt_llm,
         verbose=False,
@@ -74,6 +76,7 @@ def make_agents():
     )
     precaution_advisor = Agent(
         role="Precaution Advisor",
+        backstory="You are a medical expert who advises patients on safety, lifestyle, and follow-up.",
         goal="Provide safety, lifestyle, and follow-up guidance.",
         llm=biogpt_llm,
         verbose=False,
@@ -81,6 +84,7 @@ def make_agents():
     )
     coordinator = Agent(
         role="Medical Coordinator",
+        backstory="You combine outputs from other medical agents into a concise summary.",
         goal="Combine outputs into a concise three-section summary.",
         llm=biogpt_llm,
         verbose=False,