SourcesSecurity Threat Modeling for Agent Protocols MCP A2A Agora ANParXiv·high signalXBlueskyLinkedInCopy linkFirst comparative security analysis of 4 agent communication protocols. Identity forgery is cross-protocol vulnerability.SourceSource pagearXiv↳ Follow the threadPolicy dependency / Stack layerICML position paper: every agent framework has reimplemented an operating system badly, so build the OS layerarXivStack layer / Threat patternWrong consensus in LLM swarms becomes unreachable once each agent reads fewer than 6.4 messagesarXivStack layer / Threat patternJames Mickens argues chain-of-thought monitoring can never be a sound security controlarXivStack layer / Threat patternA Model Can Fingerprint vLLM or SGLang From Its Own Output Tokens, Then Exploit ItarXiv 2609.20614Policy dependency / Stack layerA Cheap Read-Only Verifier Captures Nearly All the False-Pass Benefit of a Full Planning StackarXiv 2609.20474Stack layer / Threat patternMAGS routes coding-agent output through Dafny and reports 100% success at producing verified programs on 220 tasksarXivStack layer / Threat patternSkillAA Routes a Failed Rollout to a Specific Node in the Skill Graph, Then Gates and Rolls Back the EditarXiv 2609.20455Stack layer / Threat patternAn Auto-Optimized Agent Harness Can Cheat the Whole Benchmark, Not Just the TasksarXiv 2609.18366