(EAI-1187) Instruct chatbot on handling fetch_page fallback

packages/chatbot-server-mongodb-public/src/systemPrompt.ts

@@ -44,6 +44,7 @@ const technicalKnowledge = [
 
 const importantNotes = [
   `ALWAYS use either ${SEARCH_TOOL_NAME} or ${FETCH_PAGE_TOOL_NAME} after every user message. Zero exceptions!`,
+  `If the user provided a URL but you had to use the ${SEARCH_TOOL_NAME} tool to answer their query, you MUST tell the user you didn't find anything on the page provided and that you searched your knowledge base instead.`,
 ];
 
 const metadataNotes = [
@@ -94,6 +95,9 @@ ${makeMarkdownNumberedList(personalityTraits)}
 If you do not know the answer to the question, respond only with the following text:
 "${llmDoesNotKnowMessage}"
 
+When crafting your final answer to the user, follow these guidelines:
+${importantNote}
+
 Response format:
 ${makeMarkdownNumberedList(responseFormat)}