Automation library · Research and reporting

Predict restaurant food waste with Gemini and Google Sheets

Started by a clock, and works across Gmail and Google Sheets. It hands the judgement calls to Gemini. 12 steps: a working afternoon to understand properly.

MediumCalls a model: Gemini

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12 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 6Logic 2Service 3

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

  1. 1Daily TriggerSchedule triggerStarts it
  2. 2Chat ModelLm Chat Google GeminiModel
  3. 3MindTool ThinkModel
  4. 4Chat Model for Query Lm Chat Google GeminiModel
  5. 5Mind For ThinkTool ThinkModel
  6. 6Fetch Historical Sales DataGoogle SheetsService
  7. 7AI Forecast Generator AgentModel
  8. 8Create Email Summary AgentModel
  9. 9Format Data for AI ForecastingCodeLogic
  10. 10Clean & Structure AI OutputCodeLogic
  11. 11Send Email Forecast Report GmailService
  12. 12Log Forecast to Google SheetsGoogle SheetsService

How it's built

Starts on
A clock
Steps
12
Size
Medium: a working afternoon
Connects to
Gmail, Google Sheets
Model
Gemini

Questions

What does it need to run?

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

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 12 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 12 steps before you point it at anything that matters.