soutaro/steep
Static type checker for Ruby observed · 2026-08-28
Health v2 · maintenance only
79/100
- Activity 99
- Release rhythm 40
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 9
- age_days: 3446
- days_rel: 533
- days_push: 7
- n_releases_24m: 10
Adoption not part of the score
1488 stars · 118 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Steep is a static type checker for Ruby based on gradual typing, using RBS signature files and inline annotations. It is distributed as a Ruby gem with a CLI and Steepfile configuration.
Use cases
- statically type check a ruby codebase
- add gradual typing to ruby project with rbs signatures
- catch type errors in ruby before runtime
- verify ruby method signatures against implementations
- set up type checking in ci for ruby
When to choose
- you want static type checking for Ruby with explicit RBS type declarations
- your team is willing to maintain .rbs signature files
- you want gradual typing where untyped code is skipped rather than rejected
When to avoid
- you want automatic type inference without writing signatures
- you prefer inline-only typing like Sorbet's RBI/RBS annotations workflow
- your Ruby version is older than 2.6
Facets
cli-tool · maturity active
type-system linter cli programming-languages developer-tools testing ruby cli cross-platform ruby rbs static-analysis gradual-typing typechecker
1 source
- readme: https://github.com/soutaro/steep · fetched 2026-08-28 · acd08839ec40
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| soutaro/steep | main | 79 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem