Terraform Review Agent for Smarter PR Reviews

Built a Terraform Review Agent for Smarter PR Reviews

I recently built a small project that I’m genuinely excited about:
A Terraform Review Agent that reviews Terraform pull requests and converts the usual wall of CI/CD logs into a cleaner and more readable PR summary.

The goal was simple:
Make Terraform reviews faster, easier to understand, and more actionable.

What the agent currently does:

• Runs security scans using tfsec and checkov
• Shows infrastructure cost impact using Infracost
• Checks Terraform formatting and linting
• Uses LangGraph to coordinate the review workflow
• Posts a single sticky PR comment with the most important findings

The interesting part for me was combining traditional DevOps tooling with an AI-assisted review workflow.

Instead of digging through multiple CI logs and tool outputs, the PR gets a cleaner summary of:

• What changed
• What matters
• What might need attention before merge

A lot of Terraform reviews today are technically correct but still difficult to quickly understand at scale.
This project was an attempt to improve that developer experience a bit.

One thing I especially enjoyed while building it was orchestrating multiple tools into a single review pipeline instead of treating them as separate CI steps.

Tech Stack:
Terraform | GitHub Actions | tfsec | Checkov | Infracost | LangGraph | Python

Links:
Repo: Github Link
Project breakdown: Website Link

Curious:
Would you use something like this in your Terraform PR workflow?

Post by : Georgios Spanos