How can I force AI-Agent to call tools serially, and not in parallel?

Questions
2

To force serial execution of AI Agent tools, you can:

1. Use the **Execute Once** option in the tool node’s settings to process one item at a time ([docs.n8n.io]( Looping | n8n Docs ))

2. Alternatively, implement a callback pattern where the main workflow waits for each tool call to complete before proceeding ([community.n8n.io]( Issue with parallel pattern when using AI Agent tool call ))

For Data Tables access specifically, consider adding a small delay between operations or implementing a queue system.