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1. agent-threat-rules agent-threat-rules Public

   Open detection-rule standard for AI agent security threats — like Sigma, but for AI agents. 768 rules across 10 categories; merged into Microsoft AGT, Cisco AI Defense, MISP, OWASP A-S-R-H, FINOS &…

   TypeScript 332 42

2. ai-rmf-oscal-catalog ai-rmf-oscal-catalog Public

   Community-contributed OSCAL catalog for the NIST AI RMF (all four functions, 72 subcategories, v0.4) with worked-example profiles. CC0 1.0. Not endorsed by NIST.

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3. NeMo-Agent-Toolkit-atr NeMo-Agent-Toolkit-atr Public

   Agent Threat Rules (ATR) threat-detection plugin for the NVIDIA NeMo Agent Toolkit

   Python 1

4. claude-agent-sdk-atr claude-agent-sdk-atr Public

   Agent Threat Rules (ATR) PreToolUse hook for the Claude Agent SDK

   Python 1

5. atr-lemonade-guard atr-lemonade-guard Public

   Local OpenAI-compatible security proxy that runs the open ATR ruleset on agent traffic — vendor-neutral (AMD Lemonade, Ollama, NVIDIA, Intel). Reference implementation.

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6. openguardrails-detector-atr openguardrails-detector-atr Public

   OpenGuardrails (OGR) conformant detector backed by Agent Threat Rules (ATR)

   TypeScript