Automation library · Documents and files

Build a PDF search system with Mistral and Weaviate DB

Started by someone submitting a form. It calls services over plain HTTP rather than through connectors. 10 steps: a working afternoon to understand properly.

MediumRetrieval

10 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
0Services by connector: it calls them over plain HTTP

The flow

Starts it 2Model 7Logic 1

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

  1. 1Cohere EmbeddingsEmbeddings CohereModel
  2. 2Cohere RerankerReranker CohereModel
  3. 3Text SplitterText Splitter Recursive Character Text SplitterModel
  4. 4Upload PDFForm triggerStarts it
  5. 5Search Knowledge BaseVector Store WeaviateModel
  6. 6Store in Vector DatabaseVector Store WeaviateModel
  7. 7Document LoaderDocument Default Data LoaderModel
  8. 8Extract Text from PDFMistral AiModel
  9. 9MCP Knowledge ServerMcp triggerStarts it
  10. 10Prepare Document DataSetLogic

How it's built

Starts on
Someone submitting a form
Steps
10
Size
Medium: a working afternoon
Connects to
Nothing by connector; it calls services over plain HTTP
Model
None. This is plumbing, not judgement
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

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

What starts it?

It starts on someone submitting a form.

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?

Plan an afternoon. 10 steps is enough that you should read each one before running it.

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 10 steps before you point it at anything that matters.