nyaomaru/is-kit

Build small guards. Compose them. A lightweight, zero-dependency toolkit for building reusable TypeScript type guards that compose, refine, and preserve natural narrowing. Runtime-safe 🛡️, composable 🧩, and ergonomic ✨.

1 best points · 1 comments · 1 Hacker News post · 167 GitHub stars · View on GitHub

Hacker News discussions

• Show HN: Is-Kit – Lightweight TypeScript Guard and Validator Toolkit (1 points, 1 comments, by nyaomaru, 2025-10-05)