Decision Guardian – Surface architectural decisions in Pull Requests

Summary: Decision Guardian automatically detects and displays relevant architectural decisions and compliance rules within Pull Requests using a zero-configuration GitHub Action. It integrates Architecture Decision Records (ADRs) directly into PR comments, providing context exactly when needed without leaving the repository.

What it does

It scans modified protected files in Pull Requests and posts automatic comments with architectural choices based on ADRs. Setup involves creating decision files and adding a GitHub Action.

Who it's for

Developers and teams seeking to embed architectural context and compliance information into their code review process.

Why it matters

It prevents institutional amnesia by reducing repeated architecture questions and accelerates onboarding through timely, relevant decision context.