evincarofautumn/kitten
A statically typed concatenative systems programming language. observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5370
- days_rel: n/a
- days_push: 1242
- n_releases_24m: 0
Adoption not part of the score
1168 stars · 41 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Kitten is a statically typed, stack-based concatenative programming language with Hindley-Milner type inference and an effect/permission system for controlling side effects. This repository contains its Haskell implementation, including an interactive REPL, an interpreter, and a work-in-progress native-code compiler.
Use cases
- learn concatenative programming
- try a statically typed stack-based language
- experiment with effect types and permissions
- write low-level code with a high-level feel
- explore type inference in a Forth-like language
- run an interactive REPL for a concatenative language
When to choose
- you want to explore or learn concatenative/stack-based programming with static types
- you need a research language with effect tracking and deterministic resource management
- you want to contribute to or study a compiler written in Haskell
When to avoid
- you need a stable, production-ready language with guaranteed syntax and libraries
- you require a complete native compiler toolchain today
- you need extensive documentation, ecosystem, or community support
Facets
cli-tool · maturity experimental
compiler interpreter programming-language type-system cli programming-languages compilers developer-tools windows cli cross-platform concatenative stack-based static-typing effect-types haskell forth-inspired systems-programming command-line linux macos
4 sources
- readme: https://github.com/evincarofautumn/kitten · fetched 2026-08-28 · 70a52305aaa7
- homepage: http://kittenlang.org/ · fetched 2026-08-29 · 03d1a17515d0
- site_page: https://kittenlang.org/documentation · fetched 2026-08-29 · b5b79778f0cc
- site_page: https://kittenlang.org/faq · fetched 2026-08-29 · f3d2a6786646
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| evincarofautumn/kitten | main | 32 |
For agents
markdown · JSON · MCP: product_card(name="evincarofautumn/kitten")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem