ReasonGate - Explainable security gate blocking LLM prompt injection

Show HN: ReasonGate- An explainable gate that blocks LLM prompt injection

ReasonGate is an open-source security layer designed to protect LLM applications from prompt injection attacks by providing auditable, explainable decisions for every block. Unlike black-box filters, it inspects user prompts, retrieved context, and model outputs to detect direct and indirect injections, including sophisticated obfuscation techniques. Built with zero dependencies for the core, it runs air-gapped and integrates seamlessly with any model or RAG pipeline. Developers can immediately test its effectiveness via a live demo or install it to prevent data breaches and unauthorized actions before they occur.

"A block you cannot explain is a block you cannot ship."