diff --git a/agent/__init__.py b/agent/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/agent/config.py b/agent/config.py
new file mode 100644
index 0000000..ffabac9
--- /dev/null
+++ b/agent/config.py
@@ -0,0 +1,11 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    anthropic_api_key: str
+    model: str = "claude-sonnet-4-5-20250929"
+    safedir: str = "./workspace"
+    max_tokens: int = 500
+
+    class Config:
+        env_file = ".env"
diff --git a/agent/loop.py b/agent/loop.py
new file mode 100644
index 0000000..b685cc5
--- /dev/null
+++ b/agent/loop.py
@@ -0,0 +1,23 @@
+import asyncio
+
+from anthropic import AsyncAnthropic
+
+from agent.config import Settings
+
+settings = Settings()
+
+client = AsyncAnthropic(api_key=settings.anthropic_api_key)
+
+
+async def run_turn(user_message: str) -> str:
+    message = await client.messages.create(
+        model=settings.model,
+        max_tokens=settings.max_tokens,
+        messages=[
+            {
+                "role": "user",
+                "content": user_message,
+            }
+        ],
+    )
+    return message
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..b3b5f92
--- /dev/null
+++ b/main.py
@@ -0,0 +1,18 @@
+import asyncio
+
+from agent.loop import run_turn
+
+
+async def run_tui():
+    user_message = "what is the answer to life the universe and everythings?"
+    message = await run_turn(user_message)
+    print(message.content)
+
+
+def main():
+    print("Hello from mycode!")
+    asyncio.run(run_tui())
+
+
+if __name__ == "__main__":
+    main()