# Premium Knowledge Base & RAG Pipeline (Document Brain): n8n workflow

> Started by another system calling it, and works across Postgres. 5 steps: small enough to read in one sitting and change without fear.

Source: https://millionrounds.com/workflow/premium-knowledge-base-and-rag-pipeline-document-brain (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [CRM](https://millionrounds.com/workflows?category=CRM#library)

# Premium Knowledge Base & RAG Pipeline (Document Brain)

Started by another system calling it, and works across Postgres. 5 steps: small enough to read in one sitting and change without fear.

Small

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fpremium-knowledge-base-and-rag-pipeline-document-brain)

**5 steps** Small: readable in one sitting

**0** Branches: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 1 Logic 1 Service 3

The steps in the order they run, from what starts it.

- 1 **Doc Ingestion** Webhook *Starts it*
- 2 **Text Extraction** Extract From File *Service*
- 3 **AI Logic: Chunking** Code *Logic*
- 4 **Generate Embeddings** Http Request *Service*
- 5 **Save to Vector Store** Postgres *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 5
- **Size:** Small: readable in one sitting
- **Connects to:** Postgres
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account, plus your own Postgres account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Not long. At 5 steps it can be read in one sitting and changed without fear.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 5 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fpremium-knowledge-base-and-rag-pipeline-document-brain)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Postgres](https://millionrounds.com/workflows?service=Postgres#library)

## Workflows like it

Also crm, with the same services where possible, closest in size first.

- [**Zoho CRM contact sync to Slack and PostgreSQL** 5 steps · Postgres, Slack](https://millionrounds.com/workflow/zoho-crm-contact-sync-to-slack-and-postgresql)
- [**ETL pipeline for text processing with MongoDB and Postgres** 9 steps · MongoDB, Postgres](https://millionrounds.com/workflow/etl-pipeline-for-text-processing-with-mongodb-and-postgres)
- [**Resilient AI Opportunity Scoring Engine with Salesforce** 9 steps · calls a model · Postgres, Salesforce](https://millionrounds.com/workflow/resilient-ai-opportunity-scoring-engine-with-salesforce)
- [**Territory mapper: maps CRM data** 14 steps · calls a model · Postgres](https://millionrounds.com/workflow/territory-mapper-maps-crm-data)
- [**Score customer churn risk and trigger CS follow-ups** 16 steps · ClickUp, Gmail](https://millionrounds.com/workflow/score-customer-churn-risk-and-trigger-cs-follow-ups)
- [**Analyze customer feedback and send AI-written replies** 31 steps · calls a model · Email, Google Sheets](https://millionrounds.com/workflow/analyze-customer-feedback-and-send-ai-written-replies)