Automation library · AI assistants

Automate GitHub PR linting with Gemini

Started by another system calling it. It calls services over plain HTTP rather than through connectors. It hands the judgement calls to Gemini. 20 steps: a working afternoon to understand properly.

MediumCalls a model: Gemini

Download free
20 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
0Services by connector: it calls them over plain HTTP

The flow

Starts it 2Model 2Logic 3Service 13

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

  1. 1Listen for Trigger from Github WorkflowWebhookStarts it
  2. 2Create GitHub BlobHttp Request ToolService
  3. 3Create GitHub TreeHttp Request ToolService
  4. 4Create GitHub CommitHttp Request ToolService
  5. 5Create Pull RequestHttp Request ToolService
  6. 6Create BranchHttp Request ToolService
  7. 7Get BranchHttp Request ToolService
  8. 8Google Gemini Chat ModelLm Chat Google GeminiModel
  9. 9Set Common FieldsCodeLogic
  10. 10AI AgentAgentModel
  11. 11Get PR GitHub BranchHttp RequestService
  12. 12Respond to WebhookRespond To WebhookStarts it
  13. 13Get Latest Main Branch Commit SHAHttp RequestService
  14. 14Get Latest Main Branch Tree HashHttp RequestService
  15. 15Get PR FilesHttp RequestService
  16. 16Get File ContentsHttp RequestService
  17. 17Convert Base64 to Text FileConvert To FileService
  18. 18Extract from FileExtract From FileService
  19. 19Create Code/FilePath ObjectSetLogic
  20. 20Collect All Files ChangedAggregateLogic

How it's built

Starts on
Another system calling it
Steps
20
Size
Medium: a working afternoon
Connects to
Nothing by connector; it calls services over plain HTTP
Model
Gemini

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 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. 20 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 20 steps before you point it at anything that matters.