Automation library · Scheduling

Run a personal LINE assistant with Gemini and Gmail

Started by an event in a connected app, and works across Gmail, Google Calendar, Google Sheets and Google Tasks. It puts Gemini and OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 16 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: Gemini, OpenAIRetrieval

Download free
16 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
4Services it connects to

The flow

Starts it 1Model 4Logic 1Service 10

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

  1. 1Line Messaging TriggerLine Messaging triggerStarts it
  2. 2Google Gemini Chat ModelLm Chat Google GeminiModel
  3. 3Create an event in Google CalendarGoogle Calendar ToolService
  4. 4Send a message in GmailGmail ToolService
  5. 5Append row in sheet in Google SheetsGoogle Sheets ToolService
  6. 6Create a task in Google TasksGoogle Tasks ToolService
  7. 7Get many tasks in Google TasksGoogle Tasks ToolService
  8. 8Simple MemoryMemory Buffer WindowModel
  9. 9Get many messages in GmailGmail ToolService
  10. 10Delete a task in Google TasksGoogle Tasks ToolService
  11. 11Create a task in Google Tasks1Google Tasks ToolService
  12. 12IfIfLogic
  13. 13AI AgentAgentModel
  14. 14HTTP RequestHttp RequestService
  15. 15Line MessagingLine MessagingService
  16. 16Transcribe a recordingOpen AiModel

How it's built

Starts on
An event in a connected app
Steps
16, with 1 branch
Size
Medium: a working afternoon
Connects to
Gmail, Google Calendar, Google Sheets, Google Tasks
Model
Gemini, OpenAI
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 Gmail, Google Calendar, Google Sheets and Google Tasks accounts, and a key for Gemini and OpenAI. 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 and OpenAI. 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. 16 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 16 steps before you point it at anything that matters.