Fix: Ensure response is generated when no tools are used

app/actions.tsx

@@ -139,7 +139,7 @@ async function submit(formData?: FormData, skip?: boolean) {
     // If not using a tool, this model generates the answer
     while (
       useSpecificAPI
-        ? toolOutputs.length === 0 && answer.length === 0
+        ? answer.length === 0
         : answer.length === 0 && !errorOccurred
     ) {
       // Search the web and generate the answer

lib/agents/researcher.tsx

@@ -43,6 +43,7 @@ Tool Usage Guide:
     - "What are some parks in San Francisco?"
   When you use 'geospatialQueryTool', you don't need to describe how the map will change; simply provide your textual answer based on the query, and trust the map will update appropriately.
 
+When tools are not needed, provide direct, helpful answers based on your knowledge.
 Always aim to directly address the user's question. If using information from a tool (like web search), cite the source URL.
 Match the language of your response to the user's language.`;