Ask a human for help when the AI doesn't know the answer
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 10 nodes and runs when a chat message arrives (plus 1 other trigger). Along the way it connects OpenAI Chat Model and Slack.
How it runs
Trigger: When a chat message arrives (plus 1 other trigger).
- AI Agent: runs an AI agent, with model: OpenAI Chat Model; 1 tool (Not sure?); memory: Simple Memory
- Check if user has provided email (If): checks a condition and branches into true / false
- Message Slack for help (Slack): uses Slack
- Prompt the user to provide an email (Code): runs custom JavaScript code
- Confirm that we've messaged a human (Code): runs custom JavaScript code
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in AI Agent (v1.8): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) AI Agent (v1.8) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (9)
- Chat Trigger
@n8n/n8n-nodes-langchain.chatTrigger - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - Execute Workflow Trigger
n8n-nodes-base.executeWorkflowTrigger - If
n8n-nodes-base.if - Slack
n8n-nodes-base.slack - Code
n8n-nodes-base.code - Call n8n Workflow Tool
@n8n/n8n-nodes-langchain.toolWorkflow - AI Agent
@n8n/n8n-nodes-langchain.agent
From the author
This is a workflow that tries to answer user queries using the standard GPT-4 model. If it can't answer, it sends a message to Slack to ask for human help. It prompts the user to supply an email address. This workflow is used in Advanced AI examples | Ask a…