What are your favorite n8n AI agent cheat sheets?

It's been a while and I wanted to introduce my experience with AI agents.

After building with n8n I wanted to share some cheat sheets :

1. Pin Data During Testing

Cheat Sheet: Right-click → Pin Data

When to use:

Imagine you are building a workflow where your AI agent gets information either from an API or scrapes articles from a blog, then summarizes them using an LLM. During testing, you don’t want to hammer the website 20 times or burn through API calls every time you tweak a node. Instead you want to pin the nodes.

Why? Because that way you:

Only make 1 external request.

Can test the downstream AI Agent node (e.g., OpenAI) over and over without stressing over costs

Save time by avoiding unnecessary fetches.

💡 Why This Works

One of the most underrated benefits of pinning nodes is cost efficiency, especially when you’re working with OpenAI or other APIs.

You can learn more at: https://medium.com/@mariannanakou93/n8n-ai-agent-cheat-sheets-how-to-build-smart-workflows-5e97c4ef0afd

What are your tips when building ?