NeuroGuard: AI-Native Code Security Using Gemma 4's Glass-Box Thinking Mode

Submitted to the Build With Gemma 4 track of the Dev.to Google Gemma 4 Challenge. TL;DR: I built neuroguard — a CLI that uses Gemma 4's ThinkingConfig(include_thoughts=True) API to stream the model's full cognitive trace in a split-pane terminal UI while it finds security vulnerabilities and produces a SAST-verified secure rewrite. Install: pip install neuroguard-ai. Full source: github.com/tyy130/neuroguard-ai. The Problem I Kept Running Into security Studies find the majority...