AI agent does not use its tools and therefore does not save in Airtable (which worked before)

Hi there
I am looking to create an automation for my podcast using the RSS feed and creating and posting social media content based on it, while always saving all content pieces in an Airtable as my database.
It used to work but since I tried to increase the amount of postings I get either an error and/or the AI Agent doesn’t use the Airtable tool to save the texts.

Describe the problem/error/question

The workflow is not running anymore since increasing the amount of content pieces (text only) that get created and saved to Airtable.

What is the error message (if any)?

I either get:
Problem in node ‘AI Agent’
Received tool input did not match expected schema.

or I dont get an error but the AI Agent is not using ‘Save to Airtable’ tool and thus, the rest is not working anymore (which I disconnected to find the error)

Please share your workflow

Please find my workflow in the frist reply.

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Information on your n8n setup

  • n8n version: Running version [email protected]
  • Database (default: SQLite): Airtable connection
  • Running n8n via (Docker, npm, n8n cloud, desktop app): Cloud - Starter Plan
  • Operating system: MacOs

here is the Workflow: