diff --git a/examples/create-react-agent.ipynb b/examples/create-react-agent.ipynb
index d9ccff1c0..e591c7d40 100644
--- a/examples/create-react-agent.ipynb
+++ b/examples/create-react-agent.ipynb
@@ -34,7 +34,7 @@
    "metadata": {},
    "outputs": [
     {
-     "name": "stdin",
+     "name": "stdout",
      "output_type": "stream",
      "text": [
       "OPENAI_API_KEY:  ········\n"
@@ -100,7 +100,6 @@
     "from langchain_core.tools import tool\n",
     "from langchain_openai import ChatOpenAI\n",
     "\n",
-    "\n",
     "model = ChatOpenAI(model=\"gpt-4o\", temperature=0)\n",
     "\n",
     "\n",
@@ -114,6 +113,7 @@
     "    else:\n",
     "        raise AssertionError(\"Unknown city\")\n",
     "\n",
+    "\n",
     "tools = [get_weather]"
    ]
   },
@@ -133,6 +133,7 @@
    "outputs": [],
    "source": [
     "from langgraph.prebuilt import create_react_agent\n",
+    "\n",
     "graph = create_react_agent(model, tools=tools)"
    ]
   },
@@ -154,7 +155,7 @@
     }
    ],
    "source": [
-    "from IPython.display import display, Image\n",
+    "from IPython.display import Image, display\n",
     "\n",
     "display(Image(graph.get_graph().draw_mermaid_png()))"
    ]
@@ -183,16 +184,6 @@
     "Let's run the app with an input that needs a tool call"
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": 7,
-   "id": "46aa3f8f-067d-4178-99f8-806071ea78dd",
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "from langchain_core.tools import Tool"
-   ]
-  },
   {
    "cell_type": "code",
    "execution_count": 8,
@@ -353,16 +344,21 @@
    ],
    "source": [
     "from langchain_core.prompts import ChatPromptTemplate\n",
-    "prompt = ChatPromptTemplate.from_messages([\n",
-    "    (\"system\", \"You are a helpful bot named Fred.\"),\n",
-    "    (\"user\", \"My name is Joe\"),\n",
-    "    (\"placeholder\", \"{messages}\"),\n",
-    "])\n",
+    "\n",
+    "prompt = ChatPromptTemplate.from_messages(\n",
+    "    [\n",
+    "        (\"system\", \"You are a helpful bot named Fred.\"),\n",
+    "        (\"user\", \"My name is Joe\"),\n",
+    "        (\"placeholder\", \"{messages}\"),\n",
+    "    ]\n",
+    ")\n",
+    "\n",
     "\n",
     "def modify_messages(messages: list):\n",
     "    # You can do more complex modifications here\n",
     "    return prompt.invoke({\"messages\": messages})\n",
     "\n",
+    "\n",
     "graph = create_react_agent(model, tools, messages_modifier=modify_messages)\n",
     "\n",
     "inputs = {\"messages\": [(\"user\", \"What's my name? And what's the weather in SF?\")]}\n",
@@ -416,6 +412,7 @@
    ],
    "source": [
     "from langgraph.checkpoint import MemorySaver\n",
+    "\n",
     "graph = create_react_agent(model, tools, checkpointer=MemorySaver())\n",
     "\n",
     "config = {\"configurable\": {\"thread_id\": \"1\"}}\n",
@@ -524,7 +521,11 @@
    ],
    "source": [
     "inputs = {\"messages\": [(\"user\", \"What's it known for?\")]}\n",
-    "print_stream(graph.stream(inputs, config={\"configurable\": {\"thread_id\": 2}}, stream_mode=\"values\"))"
+    "print_stream(\n",
+    "    graph.stream(\n",
+    "        inputs, config={\"configurable\": {\"thread_id\": 2}}, stream_mode=\"values\"\n",
+    "    )\n",
+    ")"
    ]
   },
   {