Hi @Martser and @Remy ,
For the "UC Files" type of knowledge source you want to point to a volume with these file types: TXT, PDF, MD, PPT/PPTX, DOC/DOCX. I assume you were pointing to a location with other files or assets?
In general the free trial only supports DELTA_SYNC for vector search (automatically syncs with a source Delta Table, automatically and incrementally updating the index as the underlying data in the Delta Table changes). I don't believe that is mentioned specifically in documentation, but you can find other limitations here: https://docs.databricks.com/aws/en/getting-started/express-setup
If you need full functionality I would suggest contacting a team member if you don't already have a contact.
As for the other questions:
1) Is it possible to input the schema in a format with input and output?
What type of use case do you have? The information extraction and custom agent have some flexibility around this, but the knowledge assistant uses a standard chat interface. The product is still in Beta though so there may be changes in the future.
2) In the free trial, when I create a vector search index and utilize it as a knowledge source, I get the following error.
Maximum number of vector search endpoints per workspace exceeded quota of 1
Using Agent Bricks with vector search currently includes creating a new vector search endpoint, even if you are pointing to an existing vector search index (i.e., you cannot reuse the existing endpoint with your new agent). This is causing you to exceed the quota of 1 endpoint. You may find other relevant details around functionality and pricing here: https://www.databricks.com/product/pricing/beta-products
I would try deleting your existing vector search index and let Agent Bricks create one for you with the "UC Files" type for knowledge source.
I hope that helps, but let me know if you have further questions. If this solves the issue, please use the "Accept as Solution" button to let us know!
- James
