Automate GitHub like a pro: Build your own bot with TypeScript and Serverless

Maintaining a repo is more than just writing code.

You label issues, respond to PRs… and somehow keep track of all the // TODO comments scattered across the codebase.

I got tired of juggling all this manually. So I built a bot.

🤖 Meet AutoMaintainer-bot

It’s a lightweight GitHub App built with Probot and deployed serverlessly on GCF. Here's what it does:

• 🏷️ Automatically labels issues based on their content
• 💬 Welcomes new contributors when they open their first issue
• 📌 Scans code for // TODO: and creates issues for them
• 📦 Runs entirely serverless — zero infrastructure needed

And yes, it works across multiple repositories.

🛠️ Tech stack

• TypeScript for clean, typed logic
• Probot to handle GitHub events with ease
• Google Cloud run function for instant serverless deployment
• GitHub App with custom permissions
• Optional: YAML config to tweak behavior per repo

💡 Why this matters

• Automating boring tasks = more time to build
• Improves contributor experience
• Encourages TODO discipline
• Serverless = no ops burden

🔗 Open-source project

You can find the full bot code here:
👉 https://github.com/Alwil17/automaintainer-bot