Agent in Dify access Knowledge Base directly

[nam]

Hi everyone,

I’m experimenting with Dify and noticed that the Agent node is designed to call tools only, but it cannot directly access the Knowledge Base / vector DB.

I want the AI to be able to self-reason (self-ask) in order to:

1. Break down a user question into smaller sub-questions.

2. Query the Knowledge Base to retrieve accurate information.

3. Aggregate the results and provide a final answer to the user.

Does anyone have experience implementing this kind of workflow in Dify when the KB is not a tool?

Thanks!

[kurokobo]

@nam
Hi, the simplest way I know is:

1. Create a workflow that performs only knowledge retrieval and returns the result.
2. Publish it as a “Workflow as Tool”.
3. Add the published tool to the agent node.

This way, agents can use the knowledge retrieval feature as a tool.

Hope this helps