https://letters.newtype.pro/p/two-tools-that-improve-agent-efficiencynewtypeen2026-08-03T12:27:52+00:00两个小工具，提升Agent效率https://letters.newtype.pro/p/why-i-made-newtype-ai-indexnewtypeen2026-08-02T02:30:00+00:00我做了个指数：newtype AI Index