ruby/rbs
The type signature language for Ruby observed · 2026-10-20
Health v2 · maintenance only
97/100
- Activity 100
- Release rhythm 92
- Longevity 100
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 10.0
- age_days: 2781
- days_rel: 58
- days_push: 1
- n_releases_24m: 23
Adoption not part of the score
2183 stars · 259 forks observed · 2026-10-20
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
RBS is the type signature language for Ruby, letting developers describe class, module, method, and variable types in .rbs files. It ships as a gem with a CLI for validating, inspecting, and generating signature boilerplate from Ruby code.
Use cases
- add type signatures to a ruby codebase
- generate rbs boilerplate from existing ruby files
- check method signatures and class ancestors
- define types for ruby standard library and gems
- document ruby apis with type annotations
When to choose
- you want gradual typing for Ruby with a dedicated signature language
- you use tools like Steep or TypeProf that consume RBS signatures
- you need to type-annotate gems or the Ruby standard library
When to avoid
- you want inline type annotations rather than separate signature files
- you need a full static type checker (RBS describes types, it does not type-check programs itself)
- you work in a non-Ruby language
Facets
library · maturity active
type-system parser cli developer-tools programming-languages developer-tools parsers ruby cli cross-platform ruby type-signatures static-analysis gradual-typing
1 source
- readme: https://github.com/ruby/rbs · fetched 2026-10-20 · 9b978c9c4e6f
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ruby/rbs | main | 97 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem