cuelang/cue
CUE has moved to https://github.com/cue-lang/cue observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 0
- Release rhythm 8
- Longevity 100
Flags: archived
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: 2774
- days_rel: n/a
- days_push: 1876
- n_releases_24m: 0
Adoption not part of the score
3056 stars · 168 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
CUE is an open-source data validation language and inference engine, rooted in logic programming, that merges types and values into a single lattice hierarchy. It ships with the `cue` CLI and Go APIs for validating, generating, and unifying configuration and data in formats like JSON, YAML, Protobuf, and OpenAPI. Note: this repository (cuelang/cue) is a legacy mirror; development has moved to cue-lang/cue.
Use cases
- validate json and yaml files against a schema
- reduce boilerplate in large-scale configuration files
- generate openapi or protobuf definitions from a single schema
- unify configuration values from multiple sources
- write policies and constraints for kubernetes-style configs
- template and export configuration as yaml or json
- script data transformations without writing a custom tool
When to choose
- you need powerful, composable data validation across JSON/YAML/CUE files
- you manage large configuration estates with repetition and policy requirements
- you want a single source of truth generating multiple schema formats
- you want incremental adoption - validate existing files without changing other tooling
When to avoid
- you need a general-purpose programming language - CUE is deliberately not one
- your team is unwilling to learn a new constraint-based language
- you only need simple one-off JSON schema validation with existing mature tools
- you require long-term support from this specific legacy repository rather than cue-lang/cue
Facets
cli-tool · maturity active
configuration-management data-science templating cli parser programming-languages developer-tools windows go cli cross-platform cue-language data-validation schema unification json-yaml openapi protobuf logic-programming moved-repo code-generation configuration data-engineering devops linux macos docker
10 sources
- readme: https://github.com/cuelang/cue · fetched 2026-08-28 · b49c841017d7
- homepage: https://cuelang.org · fetched 2026-08-29 · aeaf25911f08
- site_page: https://cuelang.org/docs · fetched 2026-08-29 · 8eab7a42df00
- site_page: https://cuelang.org/docs/introduction/installation · fetched 2026-08-29 · bc5d05c491cf
- site_page: https://cuelang.org/docs/introduction · fetched 2026-08-29 · 033a0de989fc
- site_page: https://cuelang.org/docs/tour · fetched 2026-08-29 · 0ab50ead8ceb
- site_page: https://cuelang.org/docs/concept/how-cue-enables-data-validation · fetched 2026-08-29 · 08674ebfe924
- site_page: https://cuelang.org/docs/concept/how-cue-enables-configuration · fetched 2026-08-29 · 9cb23837c593
- site_page: https://cuelang.org/docs/concept/how-cue-enables-boilerplate-removal · fetched 2026-08-29 · 18d215abe06a
- site_page: https://cuelang.org/docs/reference/command/cue-help-cmd · fetched 2026-08-29 · 8ab8acbc0987
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| cuelang/cue | main | 10 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem