Automated GitHub PR Code Review with AI

September 11, 2025

Aladuddin Aladin

This workflow automates the code review process for GitHub pull requests using AI. Whenever a PR is opened or updated, the workflow fetches the file diffs, generates a detailed review prompt, and passes it to an AI model for analysis. The AI provides inline feedback comments directly on the PR. Optionally, it can also apply a ReviewedByAI label and reference team best practices stored in Google Sheets for more opinionated reviews.

✨ Features

  • GitHub PR Trigger → Detects new or updated pull requests in real time.
  • PR Diffs Fetching → Retrieves changed files and their code diffs using GitHub API.
  • AI-Powered Code Review → Uses OpenAI (or another model) to analyze changes and provide inline comments.
  • Custom Review Prompt → Builds a structured prompt for detailed, file-by-file review.
  • GitHub Comment Poster → Posts AI feedback as PR comments automatically.
  • Optional Labeling → Adds a “ReviewedByAI” label to PRs after review.
  • Team Best Practices Integration → Connects with Google Sheets (or other sources) to enforce internal coding guidelines.

About the author

Alauddin Aladin is an AI Automation expert helping businesses streamline operations, boost productivity, and scale effortlessly using tools like Make.com and n8n. With over a decade of experience in digital systems and automation strategy, Alauddin empowers entrepreneurs to save time and grow smarter through intelligent workflows and AI-driven solutions.

Leave a Comment