diff --git a/main.py b/main.py
index 273d069..ca7f860 100644
--- a/main.py
+++ b/main.py
@@ -1,104 +1,58 @@
-import os
 import asyncio
 from langchain_openai import ChatOpenAI
+from langchain_core.messages import HumanMessage
 from langchain.tools import tool
-from langchain.agents.middleware import HumanInTheLoopMiddleware
-from deepagents import create_deep_agent
-from deepagents.backends import CompositeBackend, LocalShellBackend, FilesystemBackend
+from langgraph.checkpoint.memory import MemorySaver
+from langgraph.graph import StateGraph
 from langgraph.types import Command
 
-# ---------- LLM ----------
-llm = ChatOpenAI(
-    model="openai/gpt-oss-20b:free",
-    base_url="https://openrouter.ai/api/v1",
-    api_key=os.getenv("OPENAI_API_KEY"),
-    temperature=0.0,
-)
+# LLM
+llm = ChatOpenAI(model="gpt-4o-mini", base_url="https://openrouter.ai/api/v1", api_key=os.getenv("OPENAI_API_KEY"), temperature=0.0)
 
-# ---------- Backend ----------
-backend = CompositeBackend([
-    LocalShellBackend(workspace_dir="./workspace"),
-    FilesystemBackend(),
-])
-
-# ---------- Tool ----------
+# Simple tool
 @tool
-def get_weather(city: str, date: str = "today") -> str:
-    """Return a mock weather report for the given city and date."""
-    return f"The weather in {city} on {date} is sunny with a high of 25°C."
+def get_weather(city: str, date: str) -> str:
+    return f"Погода в {city} на {date}: солнечно, 25°C"
 
-# ---------- Agent ----------
-agent = create_deep_agent(
+# Agent with middleware
+memory = MemorySaver()
+
+agent = create_agent(
     model=llm,
     tools=[get_weather],
-    backend=backend,
-    system_prompt="You are a helpful assistant.",
+    system_prompt='Ты полезный ассистент',
     middleware=[
         HumanInTheLoopMiddleware(
             interrupt_on={"get_weather": True},
             description_prefix="Подтвердите вызов инструмента",
         ),
     ],
+    checkpointer=memory,
 )
 
-# ---------- Helper to process interrupt ----------
-async def handle_interrupt(result, config):
-    interrupt = result["__interrupt__"][0].value
-    action_requests = interrupt["action_requests"]
-    review_configs = interrupt["review_configs"]
-    decisions = []
-    for idx, action in enumerate(action_requests):
-        name = action["name"]
-        args = action["args"]
-        description = action.get("description", "")
-        print(f"\n--- Подтверждение ---")
-        print(f"Инструмент: {name}")
-        print(f"Аргументы: {args}")
-        if description:
-            print(f"Описание: {description}")
-        # Determine allowed decisions
-        allowed = review_configs[idx].get("allowed_decisions", ["approve", "reject", "edit"])
-        while True:
-            choice = input(f"a = approve, r = reject{', e = edit' if 'edit' in allowed else ''}: ").strip().lower()
-            if choice == "a" and "approve" in allowed:
-                decisions.append({"type": "approve"})
-                break
-            if choice == "r" and "reject" in allowed:
-                msg = input("Сообщение для агента (причина отказа): ")
-                decisions.append({"type": "reject", "message": msg})
-                break
-            if choice == "e" and "edit" in allowed:
-                # Simple edit: ask for new args as JSON
-                import json
-                new_args = input("Введите отредактированные аргументы в формате JSON: ")
-                try:
-                    new_args_dict = json.loads(new_args)
-                    decisions.append({"type": "edit", "edited_action": {"name": name, "args": new_args_dict}})
-                    break
-                except json.JSONDecodeError:
-                    print("Неверный JSON, попробуйте снова.")
-            print("Неверный выбор, попробуйте снова.")
-    # Resume agent
-    return await agent.ainvoke(Command(resume={"decisions": decisions}), config)
-
-# ---------- Main loop ----------
 async def main():
-    config = {"configurable": {"thread_id": "session-1"}}
-    while True:
-        user_input = input("Вы: ")
-        if user_input.lower() in {"exit", "quit"}:
-            break
-        # Initial invoke
-        result = await agent.ainvoke(
-            {"messages": [{"role": "human", "content": user_input}]},
-            config,
-        )
-        # Process interrupts
-        while "__interrupt__" in result:
-            result = await handle_interrupt(result, config)
-        # Final answer
-        final_msg = result["messages"][-1].content
-        print(f"\nАгент: {final_msg}\n")
+    config = {"configurable": {"thread_id": "сессия-1"}}
+    result = await agent.ainvoke(
+        {"messages": [{"role": "human", "content": "Какая погода в Казани сегодня?"}]},
+        config=config,
+    )
+    # loop for interrupts
+    while "__interrupt__" in result:
+        interrupt = result["__interrupt__"][0].value
+        decisions = []
+        for req in interrupt["action_requests"]:
+            print(f"Инструмент: {req['name']}")
+            print(f"Аргументы: {req['args']}")
+            if "description" in req:
+                print(req["description"])
+            choice = input("a=approve, r=reject: ")
+            if choice.lower() == "a":
+                decisions.append({"type": "approve"})
+            else:
+                msg = input("Причина отказа: ")
+                decisions.append({"type": "reject", "message": msg})
+        result = await agent.ainvoke(Command(resume={"decisions": decisions}), config=config)
+    print("\nОтвет: ", result["messages"][-1]["content"])
 
 if __name__ == "__main__":
     asyncio.run(main())