Why Is My Notion Create Database Page Node Triggering Duplicate Calls and Using Incorrect AI Parameters?

Below is a summary of the reported issue:

What’s Happening

• Multiple Invocations:
  For each input item retrieved from your Notion database, the tool node responsible for creating a new database page is being called twice. As a result, every valid item appears to trigger duplicate calls.

• $fromAI Parameter Issue:
  The $fromAI() parameter intended to generate dynamic values is seemingly only evaluating against the first input item. Even when processing multiple distinct input items, the AI function appears to generate the same set of parameters (from the initial context) repeatedly. Consequently, if you have two different items as input, you end up with four identical entries created in Notion.

Context

• You are using Notion's “Create Database Page” node set up as a Tools Agent alongside several AI agents (React, Tools, OpenAI Functions).
• The workflow is designed to iterate over items from a Notion Database Page and then use AI-generated parameters (using $fromAI()) for creating new Notion entries.
• The problem is reproducible with n8n version 1.66 running in Docker with SQLite.

Possible Considerations

• Iteration Mode:
  Verify how items are being processed. If multiple input items are batched together, the AI agent (or the associated tool node) could be handling the batch in a way that causes duplicated calls. Consider whether you require setting the node to process each item independently.

• $fromAI() Context:
  The $fromAI() function uses hints (like the key, description, etc.) to pick up the right value from the context. If the workflow only provides the needed context for the very first item, then subsequent items might not have their own distinct context, resulting in duplication of the parameters.

• Workflow Structure:
  It might help to review if any workflow logic (or ordering of nodes) might be causing the reprocessing of the same item multiple times or if there is an unintended loop.

Next Steps

1. Isolate the Issue:
   Create a simplified version of your workflow with just the input, a basic AI agent node using $fromAI(), and the Notion Create Database Page node. This can help confirm whether the double invocation and duplicate context issues persist.

2. Review Iteration Settings:
   Check if any node settings or execution options are causing each input item to be processed more than once. Ensure that each item gives its unique context to the $fromAI() function.

3. Check Documentation Updates:
   Since $fromAI() is tightly coupled with how the AI agent provides context to tool parameters, reviewing the latest n8n documentation on $fromAI() might shed light on any nuances or recent improvements that could affect your workflow.

Hopefully, these pointers help you troubleshoot why each input item is triggering duplicate calls and why $fromAI() appears to reuse the initial input’s parameters.