Update src/index.ts

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: Timeless0911

src/index.ts

@@ -150,7 +150,7 @@ async function getTools(
   // Filter extraTools based on templateName
   const filteredExtraTools = extraTools?.filter((tool) => {
     const when = tool.when ?? (() => true);
-    return !templateName || when(templateName);
+    return templateName ? when(templateName) : true;
   });
 
   if (parsedTools !== null) {