Update app.py

app.py

@@ -57,9 +57,9 @@ def respond(
 
     # 🔒 Force deterministic behavior
     generation_kwargs = {
-        "max_tokens": int(max_tokens),
-        "temperature": 0.2,   # fixed LOW temperature
-        "top_p": 0.8,
+        "max_tokens": 1024,
+        "temperature": 0.15,   # fixed LOW temperature
+        "top_p": 0.9,
         "stream": True,
     }
 
@@ -80,9 +80,18 @@ def respond(
 chatbot = gr.ChatInterface(
     respond,
     additional_inputs=[
-        gr.Textbox(value="You are a senior coding assistant.", label="System message"),
-        gr.Slider(1, 2048, value=512, step=1, label="Max new tokens"),
-        gr.Slider(0.1, 1.0, value=0.95, step=0.05, label="Top-p"),
+        gr.Textbox(
+            value=(
+                "You are a senior-level SQL debugging expert with deep mastery of PostgreSQL and Amazon Redshift. "
+                "You specialize in diagnosing complex query issues such as fan-out joins, incorrect aggregations, "
+                "CTE misusage, window function errors, and performance bottlenecks. "
+                "You always reason step-by-step, identify root causes, and propose production-safe fixes. "
+                "When relevant, you explain execution behavior in Redshift (distribution styles, sort keys, "
+                "query planning implications). You also provide optimized rewrites of queries and clearly "
+                "highlight the difference between the broken and fixed versions."
+            ),
+            label="System message",
+        ),
     ],
 )