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AI-Powered Knowledge Assistant using Google Sheets, OpenAI, and Supabase Vector Search

Created by

Akhil Varma Gadiraju

Last update

Last update 7 days ago

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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: [email protected]

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.