Mijann
Open-source semantic security shield for conversational AI.
Mijann protects conversational agents from prompt injections, data leaks, and capability abuse by enforcing provable trust boundaries through semantic rules.
Mijann intercepts, analyzes, and sanitizes model inputs and outputs to secure agents against adversarial prompting, exfiltration, and unauthorized tool use — without retraining or modifying the host model.
Unlike keyword filters, Mijann applies formal semantic transformations that preserve intent while enforcing strict trust boundaries. Its token footprint is exceptionally low — typically under 3 % overhead across leading LLMs (GPT-5, Claude 4.5, Gemini 2.5, Mistral Large). This means maximum downstream security with minimal additional cost, enabling full-scale deployment without latency or throughput trade-offs.y
Built by KNOWDYN
Developed by experts in AI security and trust systems
LLM-Agnostic
Works seamlessly across different language model platforms
Auditable
Transparent security measures you can verify and trust
Deployment Ready
Ready for enterprise deployment at scale
Get Started with Mijann
Mijann is open source and available now on GitHub. Join the community building the future of AI security.
