Hacker News discussion: A stricter TypeScript for a world where AI writes most of the code

A GitHub proposal called TypeScript-Ultra-Strict presents a working MVP for a stricter TypeScript variant intended for projects where AI writes much of the code. It removes null, undefined, classes, var, and direct throwing in favor of Option and Result types, plain objects, macros for pattern matching, and a boundary layer that wraps existing DOM and npm APIs. Files use a proposed .tsus extension and can coexist with regular .ts files, while tooling includes a CLI, editor plugin, bundler adapters, JSON diagnostics, and framework examples. The repository reports 29 passing example projects across Node-style tooling and integrations including Next.js, Astro, Cloudflare Workers, and Bun. The author emphasizes that it is a thought experiment and working MVP—not a production tool—with no semantic type-checking, exhaustiveness checking, published packages, or stability commitment. Hacker News discussion of the proposal had 1 point and no comments at the time of the source report.