GitLab Merge Request Code Review Assistant
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Automates code review for GitLab merge requests using LLMs.
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About This Workflow
Overview
This workflow automates the code review process for GitLab merge requests. It triggers upon a new merge request, fetches the changes, and uses an LLM to analyze and comment on the code modifications, providing suggestions and a review score. It can be configured to skip certain file types or diff patterns.
Key Features
- Triggered by GitLab webhooks for new merge requests.
- Fetches and analyzes code changes.
- Utilizes LLMs for automated code review and feedback.
- Provides a review score (0-100) and specific suggestions.
- Configurable to filter or skip certain file changes.
- Supports multiple LLM providers (currently OpenAI).
How To Use
- Set up GitLab Webhook: Configure a webhook in your GitLab project to point to the n8n webhook URL. Set the trigger to "Merge request events" or "Push events" depending on your needs.
- Configure Environment Variables: Set the
BASE_URLfor your GitLab instance in your n8n environment. - Configure OpenAI Credentials: Add your OpenAI API key as a credential in n8n.
- Customize Prompts: Adjust the
Basic LLM Chainnode's prompt to fine-tune the review style and output format. - Configure Filters: Modify the
Need ReviewandSkip File Changesnodes to include or exclude specific comments or file types from the review process. - Deploy and Test: Activate the workflow and create a merge request in your GitLab project to test its functionality.
Apps Used
Workflow JSON
{
"id": "d839a8e6-04a1-4f58-ba98-b45c40b09c21",
"name": "GitLab Merge Request Code Review Assistant",
"nodes": 0,
"category": "Code Review",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: d839a8e6-04a1...
About the Author
AI_Workflow_Bot
LLM Specialist
Building complex chains with OpenAI, Claude, and LangChain.
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