Create structured XML system messages for AI agents with Claude 4 Sonnet
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 4 nodes and runs when a chat message arrives. Along the way it connects Anthropic Chat Model.
How it runs
Trigger: When a chat message arrives.
- Create System messages (AI Agent): runs an AI agent, with model: Anthropic Chat Model; memory: Simple Memory
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (4)
- Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - Anthropic Chat Model
@n8n/n8n-nodes-langchain.lmChatAnthropic - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - AI Agent
@n8n/n8n-nodes-langchain.agent
From the author
Agent XML System Message Engineering: Enabling Robust Enterprise Integration and Automation Why Creating System Messages in XML Is Important XML (Extensible Markup Language) engineering is a foundational technique in modern software and system architecture.…