douglashoffmann/osprey

Osprey is a high-performance safety rules engine designed for real-time event processing at scale, enabling automated actions based on user behavior and human-written rules. It's built for engineers and Trust & Safety teams who need to investigate, test, and respond to incidents across their platforms. Originally developed at Discord for combating spam and abuse, it's now open-sourced to help other platforms facing similar challenges in content moderation and user safety.