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Description
AI-Powered GitHub Commit Reviewer
Overview
Workflow Name: AI-Powered GitHub Commit Reviewer
Author: Akhil
Purpose: This n8n workflow triggers on a GitHub push event, fetches commit diffs, formats them into HTML, runs an AI-powered code review using Groq LLM, and sends a detailed review via email.
How It Works (Step-by-Step)
1. GitHub Trigger
- Node Type:
n8n-nodes-base.githubTrigger - Purpose: Initiates the workflow on GitHub push events.
- Repo: akhilv77/relevance
- Output: JSON with commit and repo details.
2. Parser
- Node Type:
n8n-nodes-base.set - Purpose: Extracts key info (repo ID, name, commit SHA, file changes).
3. HTTP Request
- Node Type:
n8n-nodes-base.httpRequest - Purpose: Fetches commit diff details using GitHub API.
- Auth: GitHub OAuth2 API.
4. Code (HTML Formatter)
- Node Type:
n8n-nodes-base.code - Purpose: Formats commit info and diffs into styled HTML.
- Output: HTML report of commit details.
5. Groq Chat Model
- Node Type:
@n8n/n8n-nodes-langchain.lmChatGroq - Purpose: Provides the AI model (llama-3.1-8b-instant).
6. Simple Memory
- Node Type:
@n8n/n8n-nodes-langchain.memoryBufferWindow - Purpose: Maintains memory context for AI agent.
7. AI Agent
- Node Type:
@n8n/n8n-nodes-langchain.agent - Purpose: Executes AI-based code review.
- Prompt: Reviews for bugs, style, grammar, and security. Outputs styled HTML.
8. Output Parser
- Node Type:
n8n-nodes-base.code - Purpose: Combines commit HTML with AI review into one HTML block.
9. Gmail
- Node Type:
n8n-nodes-base.gmail - Purpose: Sends review report via email.
- Recipient: akhilgadiraju@gmail.com
10. End Workflow
- Node Type:
n8n-nodes-base.noOp - Purpose: Marks the end.
Customization Tips
- GitHub Trigger: Change repo/owner or trigger events.
- HTTP Request: Modify endpoint to get specific data.
- AI Agent: Update the prompt to focus on different review aspects.
- Groq Model: Swap for other supported LLMs if needed.
- Memory: Use dynamic session key for per-commit reviews.
- Email: Change recipient or email styling.
Error Handling
Use Error Trigger nodes to handle failures in:
- GitHub API requests
- LLM generation
- Email delivery
Use Cases
- Instant AI-powered feedback on code pushes.
- Pre-human review suggestions.
- Security and standards enforcement.
- Developer onboarding assistance.
Required Credentials
| Credential | Used By | Notes |
|---|---|---|
GitHub API (ID PSygiwMjdjFDImYb) | GitHub Trigger | PAT with repo and admin:repo_hook |
| GitHub OAuth2 API | HTTP Request | OAuth2 token with repo scope |
Groq - Akhil (ID HJl5cdJzjhf727zW) | Groq Chat Model | API Key from GroqCloud |
Gmail OAuth2 - Akhil (ID wqFUFuFpF5eRAp4E) | Gmail | Gmail OAuth2 for sending email |
Final Note
Made with ❤️ using n8n by Akhil.
🔗 Nodes Used
Github Trigger, HTTP Request, Gmail, AI Agent, Simple Memory, Groq Chat Model
📥 Import
Download workflow.json and import into n8n:
Workflow menu → Import from File