diff --git a/agent.py b/agent.py
new file mode 100644
index 0000000..7900644
--- /dev/null
+++ b/agent.py
@@ -0,0 +1,28 @@
+from langchain.agents import create_agent
+from langchain_ollama import ChatOllama
+
+from tools import search_local_kb, web_search
+
+OLLAMA_BASE_URL = "http://127.0.0.1:11434"
+LLM_MODEL = "llama3"
+
+SYSTEM_PROMPT = """
+You are a RAG assistant that must choose the best source before answering.
+
+Rules:
+- Use search_local_kb for questions about local notes, internal documents, course materials, or any topic that may already exist in the local knowledge base.
+- Use web_search for current events, recent news, live facts, or questions that clearly require the internet.
+- Do not call both tools unless the first one clearly failed to provide enough information.
+- Every final answer must end with a separate line in the exact format: "Источник: chromadb" or "Источник: tavily".
+- Answer in Russian.
+"""
+
+agent = create_agent(
+    model=ChatOllama(
+        model=LLM_MODEL,
+        base_url=OLLAMA_BASE_URL,
+        temperature=0,
+    ),
+    tools=[search_local_kb, web_search],
+    system_prompt=SYSTEM_PROMPT,
+)