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Large Language ModelsOpen-Source AI

Developer creates open-source runtime security system to protect LLM-powered agents from injection attacks, tool abuse, and data exfiltration in production environments.

Hacker News · April 16, 2026

Developer creates open-source runtime security system to protect LLM-powered agents from injection attacks, tool abuse, and data exfiltration in production environments.

AI Summary

  • •System acts as a control plane around LLM pipelines, detecting and blocking prompt injections including obfuscation attempts in real time
  • •Enforces structured tool calls with policy validation and prevents unauthorized data leakage of PII and sensitive information
  • •Architecture includes gateway layer, context inspection, Open Policy Agent for policies, runtime enforcement with sandboxing, and Apache Kafka/Flink streaming pipeline
  • •Addresses critical gap in production LLM systems where models have tool access and decision-making capabilities but lack dedicated security controls
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