AI-powered code review with linting, red-marked corrections in Google Sheets & Slack
$20/month : Unlimited workflows
2500 executions/month
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Advanced Code Review Automation (AI + Lint + Slack)
Who’s it for
For software engineers, QA teams, and tech leads who want to automate intelligent code reviews with both AI-driven suggestions and rule-based linting — all managed in Google Sheets with instant Slack summaries.
How it works
This workflow performs a two-layer review system:
- Lint Check: Runs a lightweight static analysis to find common issues (e.g., use of
var,console.log, unbalanced braces). - AI Review: Sends valid code to Gemini AI, which provides human-like review feedback with severity classification (
Critical,Major,Minor) and visual highlights (red/orange tags). - Formatter: Combines lint and AI results, calculating an overall score (0–10).
- Aggregator: Summarizes results for quick comparison.
- Google Sheets Writer: Appends results to your review log.
- Slack Notification: Posts a concise summary (e.g., number of issues and average score) to your team’s channel.
How to set up
- Connect Google Sheets and Slack credentials in n8n.
- Replace placeholders (
<YOUR_SPREADSHEET_ID>,<YOUR_SHEET_GID_OR_NAME>,<YOUR_SLACK_CHANNEL_ID>). - Adjust the AI review prompt or lint rules as needed.
- Activate the workflow — reviews will start automatically whenever new code is added to the sheet.
Requirements
- Google Sheets and Slack integrations enabled
- A configured AI node (Gemini, OpenAI, or compatible)
- Proper permissions to write to your target Google Sheet
How to customize
- Add more linting rules (naming conventions, spacing, forbidden APIs)
- Extend the AI prompt for project-specific guidelines
- Customize the Slack message formatting
- Export analytics to a dashboard (e.g., Notion or Data Studio)
Why it’s valuable
This workflow brings realistic, team-oriented AI-assisted code review to n8n — combining the speed of automated linting with the nuance of human-style feedback. It saves time, improves code quality, and keeps your team’s review history transparent and centralized.