diff --git a/frontend/components/knowledge-dropdown.tsx b/frontend/components/knowledge-dropdown.tsx
index 82581de8..88c61190 100644
--- a/frontend/components/knowledge-dropdown.tsx
+++ b/frontend/components/knowledge-dropdown.tsx
@@ -11,6 +11,7 @@ import {
 } from "lucide-react";
 import { useRouter } from "next/navigation";
 import { useEffect, useRef, useState } from "react";
+import { toast } from "sonner";
 import { Button } from "@/components/ui/button";
 import {
   Dialog,
@@ -294,6 +295,11 @@ export function KnowledgeDropdown({
         window.dispatchEvent(new CustomEvent("knowledgeUpdated"));
       } else {
         console.error("Folder upload failed:", result.error);
+        if (response.status === 400) {
+          toast.error("Upload failed", {
+            description: result.error || "Bad request",
+          });
+        }
       }
     } catch (error) {
       console.error("Folder upload error:", error);
@@ -333,6 +339,11 @@ export function KnowledgeDropdown({
         window.dispatchEvent(new CustomEvent("knowledgeUpdated"));
       } else {
         console.error("S3 upload failed:", result.error);
+        if (response.status === 400) {
+          toast.error("Upload failed", {
+            description: result.error || "Bad request",
+          });
+        }
       }
     } catch (error) {
       console.error("S3 upload error:", error);
diff --git a/frontend/components/markdown-wrapper.tsx b/frontend/components/markdown-wrapper.tsx
new file mode 100644
index 00000000..98828f10
--- /dev/null
+++ b/frontend/components/markdown-wrapper.tsx
@@ -0,0 +1,43 @@
+"use client";
+
+import React from "react";
+
+// Type-safe wrapper that bypasses react-markdown typing issues
+interface MarkdownWrapperProps {
+  children: string;
+  remarkPlugins?: any[];
+  rehypePlugins?: any[];
+  linkTarget?: string;
+  components?: any;
+}
+
+const MarkdownWrapper: React.FC<MarkdownWrapperProps> = ({
+  children,
+  remarkPlugins,
+  rehypePlugins,
+  linkTarget,
+  components
+}) => {
+  const [MarkdownComponent, setMarkdownComponent] = React.useState<any>(null);
+
+  React.useEffect(() => {
+    // Dynamically import react-markdown at runtime to avoid build-time type issues
+    import("react-markdown").then((mod) => {
+      setMarkdownComponent(() => mod.default);
+    });
+  }, []);
+
+  if (!MarkdownComponent) {
+    return <div>Loading markdown...</div>;
+  }
+
+  return React.createElement(MarkdownComponent, {
+    remarkPlugins,
+    rehypePlugins,
+    linkTarget,
+    components,
+    children,
+  });
+};
+
+export default MarkdownWrapper;
\ No newline at end of file
diff --git a/frontend/types/jsx.d.ts b/frontend/types/jsx.d.ts
new file mode 100644
index 00000000..18ff18af
--- /dev/null
+++ b/frontend/types/jsx.d.ts
@@ -0,0 +1,22 @@
+import React from 'react';
+
+declare global {
+  namespace JSX {
+    interface IntrinsicElements {
+      [elemName: string]: any;
+    }
+  }
+}
+
+declare module 'react-markdown' {
+  interface ReactMarkdownProps {
+    children: string;
+    remarkPlugins?: any[];
+    rehypePlugins?: any[];
+    linkTarget?: string;
+    components?: any;
+  }
+
+  const ReactMarkdown: React.FC<ReactMarkdownProps>;
+  export default ReactMarkdown;
+}
\ No newline at end of file