Building email assistent agent with access to docs

Hi all,

I’m going to build an email AI agent for a client which is going to create draft emails for him. I’m going for a router agent + sub-agents workflow and using a text classifier node to segment into different emails.

The client has some PDF files containing (for example) pricing information, now I want the agent node (in this example an agent which handles new inquiries) to be able to use these files in generating a response.

What’s the best approach to give these types of agents access to files (in essence a knowledge bank)?