If you want to build AI agents using n8n, do this: Copy and paste...
Hunter Kallay@lazukars
16 views
Sep 03, 2025
~2 min read
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1
If you want to build AI agents using n8n, do this:
Copy and paste this prompt into ChatGPT and watch it build your agent from scratch.
Here’s the exact prompt I use ↓
Copy and paste this prompt into ChatGPT and watch it build your agent from scratch.
Here’s the exact prompt I use ↓
2
The system:
1. I open ChatGPT
2. Paste in 1 mega prompt
3. Describe what I want the agent to do
4. GPT returns:
• Architecture
• n8n nodes
• Triggers
• LLM integration
• Error handling
• Code snippets
5. I follow the steps in n8n.
Done.
1. I open ChatGPT
2. Paste in 1 mega prompt
3. Describe what I want the agent to do
4. GPT returns:
• Architecture
• n8n nodes
• Triggers
• LLM integration
• Error handling
• Code snippets
5. I follow the steps in n8n.
Done.
3
Here’s the actual mega prompt (steal it):
You are a senior automation architect and expert in building complex AI-powered agents inside n8n. You deeply understand workflows, triggers, external APIs, GPT integrations, custom JavaScript functions, and error handling.
Guide me step-by-step to build an AI-powered agent in n8n. The agent’s purpose is: {$AGENT_PURPOSE}
1. Start by helping me scope the agent’s goals and required inputs/outputs.
2. Design the high-level architecture of the agent workflow.
3. Recommend the necessary n8n nodes (built-in, HTTP, function, OpenAI, etc).
4. For each node, explain its configuration and purpose.
5. Provide guidance for any custom code (JavaScript functions, expressions, etc).
6. Help me set up retry logic, error handling, and fallback steps.
7. Show me how to store and reuse data across executions (e.g. with Memory, Databases, or Google Sheets).
8. If the agent needs external APIs or tools, walk me through connecting and authenticating them.
Be extremely clear and hands-on, like you're mentoring a junior automation engineer. Provide visual explanations where possible (e.g. bullet points, flow-like formatting), and always give copy-paste-ready node settings or code snippets.
End by suggesting ways to make the agent more powerful, like chaining workflows, adding webhooks, or connecting to vector databases, CRMs, or Slack.
You are a senior automation architect and expert in building complex AI-powered agents inside n8n. You deeply understand workflows, triggers, external APIs, GPT integrations, custom JavaScript functions, and error handling.
Guide me step-by-step to build an AI-powered agent in n8n. The agent’s purpose is: {$AGENT_PURPOSE}
1. Start by helping me scope the agent’s goals and required inputs/outputs.
2. Design the high-level architecture of the agent workflow.
3. Recommend the necessary n8n nodes (built-in, HTTP, function, OpenAI, etc).
4. For each node, explain its configuration and purpose.
5. Provide guidance for any custom code (JavaScript functions, expressions, etc).
6. Help me set up retry logic, error handling, and fallback steps.
7. Show me how to store and reuse data across executions (e.g. with Memory, Databases, or Google Sheets).
8. If the agent needs external APIs or tools, walk me through connecting and authenticating them.
Be extremely clear and hands-on, like you're mentoring a junior automation engineer. Provide visual explanations where possible (e.g. bullet points, flow-like formatting), and always give copy-paste-ready node settings or code snippets.
End by suggesting ways to make the agent more powerful, like chaining workflows, adding webhooks, or connecting to vector databases, CRMs, or Slack.
4
I used this to build:
✅ A Reddit → Claude → Telegram AI curator
✅ A lead qualifier that scores and routes inbound leads
✅ An auto-reply agent that summarizes emails + drafts responses
✅ A daily content reposter from Notion to Twitter
All powered by Claude + n8n.
No Zapier.
No LangChain.
No bloated agents.
✅ A Reddit → Claude → Telegram AI curator
✅ A lead qualifier that scores and routes inbound leads
✅ An auto-reply agent that summarizes emails + drafts responses
✅ A daily content reposter from Notion to Twitter
All powered by Claude + n8n.
No Zapier.
No LangChain.
No bloated agents.
2:06
5
Why it works:
→ GPT designs your agent like a senior engineer
→ n8n gives you total flexibility (logic, memory, APIs, webhooks)
→ Claude/ChatGPT does the reasoning + decisions
It’s the cleanest way to deploy real AI agents today.
→ GPT designs your agent like a senior engineer
→ n8n gives you total flexibility (logic, memory, APIs, webhooks)
→ Claude/ChatGPT does the reasoning + decisions
It’s the cleanest way to deploy real AI agents today.
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Forget waiting for agent tools to catch up.
Build your own.
With 1 prompt.
In ChatGPT + n8n.
Build your own.
With 1 prompt.
In ChatGPT + n8n.
7
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Hunter Kallay@lazukars
If you want to build AI agents using n8n, do this:
Copy and paste this prompt into ChatGPT and watch it build your agent from scratch.
Here’s the exact prompt I use ↓
Copy and paste this prompt into ChatGPT and watch it build your agent from scratch.
Here’s the exact prompt I use ↓