fix: improve Tamil/Malayalam bilingual prompt reliability in ask and image analysis routes

app.py

@@ -218,16 +218,16 @@ def ask_question():
 
     try:
         # Construct prompt
+        weather_section = f"\n\n[Weather Context]: {weather_context.strip()}" if weather_context.strip() else ""
         full_prompt = (
             "You are AgroGPT, an expert agriculture assistant. "
             "Answer the following question clearly and concisely in plain text. "
-            "Provide the main answer in English, then add a section header 'Malayalam Summary:' with the translation in native Malayalam (മലയാളം) script, "
-            "then a section header 'Tamil Summary:' with the translation in native Tamil (தமிழ்) script. "
-            "Use double line breaks between these sections. "
-            "CRITICAL: Do not use Latin/English alphabets for Malayalam or Tamil. "
-            "Do not use markdown formatting or asterisks (*).\n\n"
-            f"{weather_context}\n"
-            f"Question: {question}\nAnswer:"
+            "Structure your response EXACTLY as follows:\n"
+            "1. Provide a helpful answer in English.\n"
+            "2. Then write the header 'Malayalam Summary:' followed by the FULL answer translated into native Malayalam script (മലയാളം). Do NOT use English/Latin letters for Malayalam.\n"
+            "3. Then write the header 'Tamil Summary:' followed by the FULL answer translated into native Tamil script (தமிழ்). Do NOT use English/Latin letters for Tamil.\n"
+            "Use double line breaks between each section. Do NOT use markdown, asterisks, or bullet points.\n\n"
+            f"Question: {question}{weather_section}\n\nAnswer:"
         )
         
         print(f"Asking Ollama: {question}", flush=True)

model.py

@@ -123,15 +123,11 @@ def analyze_image_for_disease(image_path: str) -> str:
             f"You are an expert plant pathologist. An image analysis system has detected "
             f"'{disease_name}' with {confidence*100:.1f}% confidence. "
             f"{'Note: This was a simulated detection based on color analysis.' if is_simulated else ''}\n\n"
-            f"Provide detailed advice for the farmer including:\n"
-            f"1. Confirmation of symptoms typically associated with this condition.\n"
-            f"2. Recommended treatments (organic and chemical).\n"
-            f"3. Preventive measures.\n"
-            f"4. A brief summary in Malayalam (മലയാളം) AND Tamil (தமிழ்) if possible.\n\n"
-            f"Priority for summary: 1. English, 2. Malayalam (native script), 3. Tamil (native script).\n"
-            f"Layout Instructions: Provide the advice in English first, then add a header 'Malayalam Summary:' followed by the Malayalam text, then 'Tamil Summary:' followed by the Tamil text. Use double line breaks between sections.\n"
-            f"CRITICAL: Use native UTF-8 characters for Malayalam and Tamil. Do NOT transliterate into English alphabets.\n"
-            f"Note: Use plain text only. Do not use markdown formatting, bolding, or any asterisks (*).\n"
+            f"Provide detailed advice for the farmer. Structure your response EXACTLY as follows:\n"
+            f"1. English Section: Describe the symptoms, then recommended treatments (organic and chemical), then preventive measures.\n"
+            f"2. Write the header 'Malayalam Summary:' followed by a FULL translation of the above advice in native Malayalam script (മലയാളം). Do NOT use English/Latin letters for Malayalam.\n"
+            f"3. Write the header 'Tamil Summary:' followed by a FULL translation of the above advice in native Tamil script (தமிழ்). Do NOT use English/Latin letters for Tamil.\n\n"
+            f"Use double line breaks between sections. Do NOT use markdown formatting, bolding, or any asterisks (*).\n"
             f"Keep the tone helpful and professional."
         )