Tech Workers, Agent Improvements, and Anthropic's Claude Code Origin Story

Three things worth your attention today: Lenny's tech worker sentiment survey shows a workforce splitting in two along AI capability lines, LangChain published a genuinely useful framework for how to actually improve agent performance using data mining, and Anthropic told the inside story of how Claude Code went from an internal CLI to a shipping product. Connecting thread: the gap between teams who know how to improve AI systems and teams who don't is widening fast.