The Collapse of Trust: Security Architecture for the Age of Autonomous AI Agents

113 detection rules across 9 threat categories. Dual benchmarks: PINT (99.6% precision, 61.4% recall, 76.0 F1, 850 samples) and SKILL.md (100% recall, 97% precision, 0.20% FP, 498 real-world samples). Ecosystem-wide scan of 96,096 AI agent skills across six registries discovered 751 active malware from three coordinated threat actors. Adopted by Cisco AI Defense (34 rules merged). OWASP Agentic Top 10: 10/10 coverage. RFC-001 quality standard published. ATR provides for AI agent skills what Sigma provides for SIEM logs and YARA provides for malware files.