Build small guards. Compose them. Lightweight, zero-dependency TypeScript type guards for runtime validation and natural narrowing. Runtime-safe 🛡️, composable 🧩, and ergonomic ✨.
Latest release v1.14.1 · 5 Sept 2026
1 file for Codex and OpenCode: is-kit AGENTS.md — 2,345 tokens loaded in every session.
AGENTS.md A 2,345 tok These files are nyaomaru/is-kit's own configuration — they tell Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.