Automation library · Data collection

AI study assistant with RAG and Drive

Started by someone opening a chat with it, and works across Google Drive, Postgres and Supabase vectors. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 17 steps, 1 loop or waits: a working afternoon to understand properly.

MediumCalls a model: GeminiRetrieval

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17 stepsMedium: a working afternoon
0Branches: places the flow splits
1Loop or waits
3Services it connects to

The flow

Starts it 2Model 10Logic 2Service 3

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

  1. 1Embeddings Google GeminiEmbeddings Google GeminiModel
  2. 2Postgres Chat MemoryMemory Postgres ChatModel
  3. 3CalculatorTool CalculatorModel
  4. 4When chat message receivedChat triggerStarts it
  5. 5Google Gemini Chat ModelLm Chat Google GeminiModel
  6. 6Folder all file to vectorTool WorkflowModel
  7. 7Embeddings Google Gemini4Embeddings Google GeminiModel
  8. 8Default Data Loader2Document Default Data LoaderModel
  9. 9When Executed by Another WorkflowExecute Workflow triggerStarts it
  10. 10Supabase Vector StoreVector Store SupabaseModel
  11. 11Study AgentAgentModel
  12. 12Insert into Supabase VectorstoreVector Store SupabaseModel
  13. 13Code in JavaScriptCodeLogic
  14. 14Loop Over ItemsSplit In BatchesLogic
  15. 15Execute a SQL queryPostgresService
  16. 16Download FileGoogle DriveService
  17. 17Search files and foldersGoogle DriveService

How it's built

Starts on
Someone opening a chat with it
Steps
17, 1 loop or waits
Size
Medium: a working afternoon
Connects to
Google Drive, Postgres, Supabase vectors
Model
Gemini
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own Google Drive, Postgres and Supabase vectors accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone opening a chat with it.

Does it use AI?

Yes. It calls Gemini. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 17 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 17 steps before you point it at anything that matters.