Automation library · Content

Review GitHub pull requests with Gemini

Started by another system calling it, and works across Google Sheets and Slack. It hands the judgement calls to Gemini. 10 steps: a working afternoon to understand properly.

MediumCalls a model: Gemini

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

The flow

Starts it 1Model 2Logic 3Service 4

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

  1. 1GitHub PR webhookWebhookStarts it
  2. 2Google Gemini AILm Chat Google GeminiModel
  3. 3Parse PR dataCodeLogic
  4. 4Code reviewChain LlmModel
  5. 5Get PR diffHttp RequestService
  6. 6Format reviewCodeLogic
  7. 7Analyze diffCodeLogic
  8. 8Post GitHub reviewHttp RequestService
  9. 9Log to SheetsGoogle SheetsService
  10. 10Notify teamSlackService

How it's built

Starts on
Another system calling it
Steps
10
Size
Medium: a working afternoon
Connects to
Google Sheets, Slack
Model
Gemini

Questions

What does it need to run?

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

What starts it?

It starts on another system calling it.

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. 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.