diff --git a/apps/x/apps/renderer/src/components/chat-sidebar.tsx b/apps/x/apps/renderer/src/components/chat-sidebar.tsx
index 593adeb7..7b3cfd12 100644
--- a/apps/x/apps/renderer/src/components/chat-sidebar.tsx
+++ b/apps/x/apps/renderer/src/components/chat-sidebar.tsx
@@ -1,4 +1,4 @@
-import { useCallback, useRef, useState } from 'react'
+import { useCallback, useEffect, useRef, useState } from 'react'
 import { ArrowUp, PanelRightClose, Plus } from 'lucide-react'
 import type { LanguageModelUsage, ToolUIPart } from 'ai'
 import { Button } from '@/components/ui/button'
@@ -152,6 +152,11 @@ export function ChatSidebar({
     document.addEventListener('mouseup', handleMouseUp)
   }, [width])
 
+  // Auto-focus input when sidebar opens
+  useEffect(() => {
+    inputRef.current?.focus()
+  }, [])
+
   const hasConversation = conversation.length > 0 || currentAssistantMessage || currentReasoning
   const canSubmit = Boolean(message.trim()) && !isProcessing