Erwin Amezcua Rios@erwin_amezcua_rios

The widespread adoption of AI coding assistants has created a massive paradox: teams generate code faster than ever, but the capacity to review it has not scaled. This introduces the "Verification Tax." Senior engineers—the most valuable resources on a team—have become bottlenecks, trapped spending hours manually auditing AI-generated pull requests. Traditional linters fail here because they only check syntax, not business context or architecture. PR Sentinel is an AI-powered Semantic Pull Request Auditor designed to eliminate this Verification Tax. Built natively on IBM Bob (watsonx.ai and the Granite model), it acts as an automated architectural gatekeeper integrated directly into the GitHub CI/CD workflow. Unlike standard tools, PR Sentinel leverages IBM Bob’s deep reasoning and full repository context. It reads and understands the project's Architecture Decision Records (ADRs). When a developer opens a PR, PR Sentinel analyzes the diff for semantic violations—such as detecting if a new API endpoint bypasses mandatory authentication middleware or violates modular design patterns. If a violation is detected, PR Sentinel doesn't just throw a generic error. It blocks the PR and posts a detailed markdown comment explaining why the code failed, referencing the specific ADR, and providing the exact, ready-to-commit code snippet to fix it. By automating architectural governance, PR Sentinel reduces manual review time by up to 50%, empowering teams to ship faster and freeing Senior Developers to focus on true innovation rather than auditing AI-generated boilerplate.

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