AgentsGrok 4.20 Beta Multi-Agent ArchitectureNextBigFuture·high signalxAI launches Grok 4.20 Beta with 4-agent collaboration system. Specialized agents process every query in parallel with 2M token context.SourceSource pageNextBigFuture↳ Follow the threadStack layer / Threat patternMalicious agent skills evade every scanner: HKUST's SkillCloak beats detectors 90%+ of the time, SkillDetonate catches 97%Help Net SecurityPolicy dependency / Stack layerAnthropic Restores Global Access to Fable 5 and Mythos 5, Launches Claude for Government BetaAnthropicStack layer / Update threadSpaceXAI Releases Grok 4.5, an 'Opus-Class' Model That Undercuts Frontier Pricing by 60%TechCrunchPolicy dependency / Stack layerIAPS warns on Kimi Claw: security and governance risks of Chinese-hosted 'always-on' AI agentsIAPSStack layer / ContrastGreenhouse CEO: Hiring Is Now in 'an AI Doom Loop' as Agents Flood Both Sides of the ATSHR DiveStack layer / Threat patternArmadin details full sandbox escape in Anthropic's Claude Cowork; Anthropic disputes, silently patchesSiliconANGLEStack layerSurvey: 65% of Working Engineers Now Run Two AI Coding Agents DailyAI Builder ClubStack layerGitLab Rebuilds Its Platform Around Agents — Adds 'APIs Optimized for Agents to Store and Retrieve Context'TechCrunch