ericelliott/rtype
Intuitive structural type notation for JavaScript. observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
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: n/a
- age_days: 3987
- days_rel: n/a
- days_push: 2761
- n_releases_24m: 0
Adoption not part of the score
1120 stars · 38 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Rtype is a structural type notation for JavaScript with a TypeScript-inspired syntax, designed primarily for API documentation and embeddable as strings for runtime reflection. It is an RFC-stage developer preview with no significant tooling yet.
Use cases
- document JavaScript API function signatures with type notation
- embed type annotations in JS strings for runtime type checking
- write compiler-agnostic structural type interfaces
- describe function signatures in library docs
- prototype a lightweight alternative to TypeScript types
When to avoid
- you need static type checking or mature tooling
- you want production-grade type safety - use TypeScript or Flow instead
- you need a stable, actively maintained specification
Facets
library · maturity experimental
type-system documentation parser programming-languages documentation developer-tools cross-platform structural-typing type-notation rfc runtime-reflection api-documentation javascript nodejs
2 sources
- readme: https://github.com/ericelliott/rtype · fetched 2026-08-28 · b8b66aae98da
- registry_npm: https://registry.npmjs.org/rtype · fetched 2026-08-29 · e8ff2919ef1e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ericelliott/rtype | main | 32 |
For agents
markdown · JSON · MCP: product_card(name="ericelliott/rtype")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem