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Linguistic Firewall: Geometry as Defense in Multi-Agent Systems Routing
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linguistic-firewall-geometry-as-defense-in-multi-agent-systems-routing-1a9dac49·1 events·first seen 3d agoAliases: Linguistic Firewall: Geometry as Defense in Multi-Agent Systems Routing
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ANTAP: Geometry-based routing defense against malicious agents in multi-agent systems
Researchers introduce ANTAP (Automatic Non-Textual Agent Picker), a routing architecture for multi-agent LLM systems that replaces text-based agent self-descriptions with empirical capability testing and algebraic projection in a shared semantic space. The approach creates a 'linguistic firewall' that makes metadata-based injection attacks inexpressible at inference time. Against description-based injection attacks, ANTAP achieves near-zero attack success rate compared to 67.3%+ for baseline routers, and reduces embedding-based attack success by 20%.