Posted by Alumni from Substack
July 13, 2026
' Hey, Linas here! Welcome back to a ' weekly free edition ' of my daily newsletter. Each day, I focus on 3 stories that are making a difference in the financial technology space. Coupled with things worth watching & most important money movements, it's the only newsletter you need for all things when Finance meets Tech. How to Build an Agentic OS with Claude Fable 5 ' [The complete guide to building an autonomous AI agent operating system with Claude Fable 5 ' architecture, working code, cost control, security, and the economics of agentic labor] Attention Is the New Startup Infrastructure: The Founder's Playbook for Winning in the AI Age ' [Inside a16z's 'go-direct as a service' model ' and the exact moves founders need to turn attention into customers, hires, and capital] Claude Managed Agents Quietly Became the Most Important AI Infrastructure Bet of 2026 ' [Anthropic shipped autonomous, self-scheduling AI agents. AWS and Google copied the architecture within two weeks. The race... learn more