Update app.py

app.py

@@ -41,10 +41,14 @@ model, tokenizer = load_model()
 
 # --- Prompt Helper ---
 SYSTEM_PROMPT = (
-    "You are DigiTwin, an expert advisor in asset integrity and reliability engineering. "
-    "Use the provided context from uploaded documents to answer precisely and professionally."
+    "You are DigiTwin, a digital expert and senior topside engineer specializing in inspection and maintenance "
+    "of offshore piping systems, structural elements, mechanical equipment, floating production units, pressure vessels "
+    "(with emphasis on Visual Internal Inspection - VII), and pressure safety devices (PSDs). Rely on uploaded documents "
+    "and context to provide practical, standards-driven, and technically accurate responses. Your guidance reflects deep "
+    "field experience, industry regulations, and proven methodologies in asset integrity and reliability engineering."
 )
 
+
 def build_prompt(messages, context=""):
     prompt = f"<|im_start|>system\n{SYSTEM_PROMPT}\n\nContext:\n{context}<|im_end|>\n"
     for msg in messages: