Nomad changes

docs/snippets/python/mcp/mcp_langchain_integration.md

@@ -0,0 +1,36 @@
+```python title="Python"
+from langchain.agents import initialize_agent, AgentType
+from langchain.tools import Tool
+from langchain_openai import ChatOpenAI
+import subprocess
+import json
+
+mcp_process = subprocess.Popen(
+    ["kreuzberg", "mcp"],
+    stdin=subprocess.PIPE,
+    stdout=subprocess.PIPE,
+    stderr=subprocess.PIPE,
+)
+
+def extract_file(path: str) -> str:
+    request: dict = {
+        "method": "tools/call",
+        "params": {
+            "name": "extract_file",
+            "arguments": {"path": path, "async": True},
+        },
+    }
+    mcp_process.stdin.write(json.dumps(request).encode() + b"\n")
+    mcp_process.stdin.flush()
+    response = mcp_process.stdout.readline()
+    return json.loads(response)["result"]["content"]
+
+tools: list[Tool] = [
+    Tool(name="extract_document", func=extract_file, description="Extract")
+]
+
+llm = ChatOpenAI(temperature=0)
+agent = initialize_agent(
+    tools, llm, agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION
+)
+```