Automation library · AI assistants

Ensure required data tables exist with Gemini

Started by an event in a connected app, and works across n8n data table. It puts Gemini behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 15 steps, 1 branch, 1 loop or waits: a working afternoon to understand properly.

MediumCalls a model: GeminiRetrieval

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15 stepsMedium: a working afternoon
1Branch: places the flow splits
1Loop or waits
1Service it connects to

The flow

Starts it 1Model 3Logic 2Service 9

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

  1. 1StartExecute Workflow triggerStarts it
  2. 2Simple MemoryMemory Buffer WindowModel
  3. 3Google Gemini Chat ModelLm Chat Google GeminiModel
  4. 4c1TableData Table ToolService
  5. 5c2TableData Table ToolService
  6. 6c3TableData Table ToolService
  7. 7c4TableData Table ToolService
  8. 8c5TableData Table ToolService
  9. 9c6TableData Table ToolService
  10. 10c7TableData Table ToolService
  11. 11c8TableData Table ToolService
  12. 12List data tablesData TableService
  13. 13AI AgentAgentModel
  14. 14Loop Over ItemsSplit In BatchesLogic
  15. 15MatchingTableFoundIfLogic

How it's built

Starts on
An event in a connected app
Steps
15, with 1 branch, 1 loop or waits
Size
Medium: a working afternoon
Connects to
n8n data table
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, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

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. 15 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 15 steps before you point it at anything that matters.