AI-Powered Automated GitHub Code Review
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This n8n workflow revolutionizes your code review process by automating initial feedback using AI. Triggered by new GitHub Pull Requests, it fetches code changes, leverages gpt-4o-mini to generate expert inline comments, and posts them directly back to your PR, significantly accelerating development cycles.
About This Workflow
Streamline your software development with this robust n8n workflow designed for AI-driven code review. Automatically kickstarting upon a new GitHub Pull Request, the system intelligently extracts code diffs and constructs a tailored prompt for an advanced AI model. Acting as a "senior iOS developer," gpt-4o-mini analyzes changes, identifies potential issues, and suggests improvements with precise, inline comments. This not only lightens the load on human reviewers but also provides immediate, consistent feedback, enforcing best practices and catching common errors earlier in the development lifecycle. Enhance code quality and accelerate delivery with intelligent, automated assistance.
Key Features
- Automated GitHub PR Trigger: Instantly initiates code review upon new pull request creation or updates.
- Intelligent Diff Extraction: Dynamically fetches and processes code changes (diffs) from GitHub PRs.
- AI-Powered Code Analysis: Utilizes OpenAI's
gpt-4o-minito act as a senior developer, providing expert review and inline comments. - Customizable AI Prompts: Generates detailed, contextual prompts to guide the AI for highly relevant feedback.
- Direct GitHub Integration: Posts AI-generated review comments and applies custom labels (e.g., "ReviewedByAI") directly to your PRs.
- Optional Best Practices Reference: Can integrate with Google Sheets to allow the AI to consult a knowledge base of coding best practices (implied by Google Sheets node connection).
How To Use
- Configure GitHub Trigger: Connect your GitHub account (OAuth2) and specify the repository(s) you want to monitor for
pull_requestevents. - Set up HTTP Request for Diffs: This node is pre-configured to fetch diffs; ensure your GitHub credentials for the trigger are correctly set up to allow API access.
- Customize Code Node (Optional): Review the JavaScript in "Create target Prompt from PR Diffs". You can modify the AI persona (e.g., "senior Java developer"), adjust prompt instructions, or refine diff formatting if needed.
- Connect OpenAI Chat Model: Provide your OpenAI API Key credentials. The model
gpt-4o-miniis pre-selected, but you can change it if you have access to other models. - Configure GitHub Robot: Connect your GitHub API credentials (OAuth2) to allow the workflow to post comments and add labels to pull requests. This node is set to create a "review" comment.
- Configure Add Label to PR: Ensure the GitHub OAuth2 credentials are set up. You can customize the label name (currently "ReviewedByAI") if desired.
- Integrate Google Sheets (Optional): If you want the AI to reference specific best practices, connect your Google Sheets account and specify the Document ID and Sheet Name containing your coding guidelines. This node is intended as a tool for the OpenAI model.
- Activate Workflow: Once all credentials are set and configurations verified, activate the workflow to start automating your code reviews.
Apps Used
Workflow JSON
{
"id": "e215fe2b-8ffb-4f07-8917-fe411b0b1108",
"name": "AI-Powered Automated GitHub Code Review",
"nodes": 20,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: e215fe2b-8ffb...
About the Author
SaaS_Connector
Integration Guru
Connecting CRM, Notion, and Slack to automate your life.
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