Create langchain_manager.py

Author: webxos

vial/langchain_manager.py

@@ -0,0 +1,22 @@
+from langchain.agents import AgentExecutor
+from langchain.prompts import PromptTemplate
+from langchain_community.llms import NanoGPT
+import logging
+
+logger = logging.getLogger(__name__)
+
+def create_langchain_agent():
+    try:
+        prompt_template = PromptTemplate(
+            input_variables=["input"],
+            template="Process the following command for the Vial MCP: {input}"
+        )
+        llm = NanoGPT(model_name="nano-gpt", api_key="mock-api-key")
+        agent = AgentExecutor.from_llm_and_tools(llm=llm, tools=[])
+        logger.info("LangChain agent created")
+        return agent
+    except Exception as e:
+        logger.error(f"LangChain agent creation error: {str(e)}")
+        with open("errorlog.md", "a") as f:
+            f.write(f"- **[2025-08-10T20:23:00Z]** LangChain agent creation error: {str(e)}\n")
+        raise