AgentsGrok 4.20 Beta Multi-Agent ArchitectureNextBigFuture·high signalXBlueskyLinkedInCopy linkxAI 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 patternElva Launches Against Postman With Flat Workspace Pricing and Specs Generated From Repo CommitsElva (surfaced via the Product Hunt daily leaderboard for 2026-09-14)Stack layer / Threat patternA Malicious Super-App Can Silently Own Every Mini-App Inside It, and Russia's MAX Demonstrates the Full SetarXiv 2609.11814Stack layer / Update threadCROSS-CATEGORY: Five Launches in 96 Hours Sold Self-Hosting and Air-Gapping as the Entire DifferentiatorCoder blog, GitHub API and Hacker News Show HN (five independent launches)Policy dependency / Stack layerTarfio Launches a Budget and Metering Layer That Sits Between Agents and Paid MCP ToolsTarfio via Hacker News Show HN (single source, private beta)Stack layer / Update threadSplitting a CTF Task Into Isolated Sub-Contexts Lets a Local gemma-4 Solve 18.52% of Challenges Standard Agent Loops FailarXiv 2609.12839Stack layer / Threat patternA critical unauthenticated RCE in the Bifrost MCP gateway: registering a stdio client runs a program on the boxNVDStack layer / ContrastBirdview, an MIT tool that maps repo architecture before an agent edits, reached 160 stars in its first 29 hoursGitHubStack layer / Update threadCline desktop 0.0.27 fixes sign-out that silently undid itself and per-model protocol routing that broke every OpenCode Go modelGitHub