# GitLab merge request review & risk analysis with Claude: n8n workflow

> Started by an event in a connected app, and works across Gmail. It hands the judgement calls to Claude.

Source: https://millionrounds.com/workflow/gitlab-merge-request-review-and-risk-analysis-with-claude (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Research and reporting](https://millionrounds.com/workflows?category=Research+and+reporting#library)

# GitLab merge request review & risk analysis with Claude

Started by an event in a connected app, and works across Gmail. It hands the judgement calls to Claude. 14 steps, 1 branch: a working afternoon to understand properly.

Medium Calls a model: Claude

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fgitlab-merge-request-review-and-risk-analysis-with-claude)

**14 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 3 Model 5 Logic 3 Service 3

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

- 1 **Structured Output Parser** Output Parser Structured *Model*
- 2 **Anthropic Chat Model** Lm Chat Anthropic *Model*
- 3 **Anthropic Chat Model1** Lm Chat Anthropic *Model*
- 4 **GitLab Trigger** Gitlab trigger *Starts it*
- 5 **GitLab Trigger1** Gitlab trigger *Starts it*
- 6 **GitLab Trigger2** Gitlab trigger *Starts it*
- 7 **Auto-fixing Output Parser** Output Parser Autofixing *Model*
- 8 **AI Agent** Agent *Model*
- 9 **Merge** Merge *Logic*
- 10 **Distribution List Generator** Code *Logic*
- 11 **Comment Back on MR** Http Request *Service*
- 12 **Extract Diff** Http Request *Service*
- 13 **Send to DL (Email Notification)** Gmail *Service*
- 14 **If Some Change** If *Logic*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 14, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail
- **Model:** Claude

## Questions

What does it need to run?

An n8n account, plus your own Gmail account, and a key for Claude. 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 Claude. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 14 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 14 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fgitlab-merge-request-review-and-risk-analysis-with-claude)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)

## Workflows like it

Also research and reporting, with the same services where possible, closest in size first.

- [**AI email assistant: Prioritize Gmail with Slack** 14 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/ai-email-assistant-prioritize-gmail-with-slack)
- [**Analyze Reddit competitor sentiment with Bright Data** 14 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/analyze-reddit-competitor-sentiment-with-bright-data)
- [**Analyze daily stock news sentiment with Gemini** 14 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/analyze-daily-stock-news-sentiment-with-gemini)
- [**Collect reviews, analyze sentiment, and generate reports** 14 steps · calls a model · Airtable, Gmail](https://millionrounds.com/workflow/collect-reviews-analyze-sentiment-and-generate-reports)
- [**Email drafting & news research assistant with OpenAI and Gmail** 14 steps · calls a model · Gmail](https://millionrounds.com/workflow/email-drafting-and-news-research-assistant-with-openai-and-g)
- [**Generate book summaries with OpenAI and Google APIs** 14 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/generate-book-summaries-with-openai-and-google-apis)