Ross ROSS = Recommend OSS · open-source software intelligence for agents

facebook/starlark-rust

A Rust implementation of the Starlark language observed · 2026-10-14

github.com/facebook/starlark-rust · Rust · Apache-2.0 (permissive) observed · 2026-10-14

Health v2 · maintenance only

81/100

  • Activity 99
  • Release rhythm 47
  • Longevity 100
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: 534
  • age_days: 2143
  • days_rel: 141
  • days_push: 7
  • n_releases_24m: 2

Full methodology

Adoption not part of the score

1034 stars · 116 forks observed · 2026-10-14

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Rust implementation of the Starlark language, a deterministic Python3-inspired configuration language used by build systems like Bazel and Buck2. It provides a library with garbage-collected values, Rust interoperability, a linter, LSP and DAP support.

Use cases

  • embed a Starlark interpreter in a Rust application
  • evaluate Starlark build configuration files
  • lint Starlark code for issues
  • build a custom configuration language for my tool
  • add IDE support for Starlark via LSP
  • debug Starlark scripts with DAP

When to choose

  • you need to evaluate Starlark from Rust
  • you're building tooling around Bazel or Buck2 build files
  • you want a deterministic, sandboxed configuration language embedded in Rust

When to avoid

  • you need a general-purpose scripting language
  • you require a stable API across releases
  • you're working in a non-Rust codebase (consider starlark-go or the Java implementation)

Facets

library · maturity active

interpreter programming-language linter parser programming-languages developer-tools compilers rust cross-platform starlark bazel build-configuration lsp debug-adapter-protocol

1 source

Member repositories

RepositoryRoleHealth v2
facebook/starlark-rustmain81

For agents

markdown · JSON · MCP: product_card(name="facebook/starlark-rust")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem