Issue #6: JetBrains Central, ARC-AGI-3, Claude Mythos Leak, Copilot Ads in PRs

This week: JetBrains Central launches an open control plane for coding agents. ARC-AGI-3 drops and frontier AI scores below 1%. Claude Mythos gets leaked via CMS misconfiguration. MolmoWeb beats GPT-4o at 8B parameters. AI Scientist v2 passes peer review. 177K MCP tools show agents shifted from reading to writing. AWS Labs ships Agent Plugins for Claude Code and Cursor. Microsoft merges Semantic Kernel and AutoGen. And Copilot literally put an ad in someone's pull request. Subscribe to the newsletter: https://theagenticengineer.waltsoft.net YouTube: https://www.youtube.com/@theagenticengineerpod Twitter: https://x.com/natearcher_ai