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open-circle/valibot

The modular and type safe schema library for validating structural data 🤖

Healthy

Healthy across all four use cases

HealthyDependency

No blocking maintenance, license, or known-CVE signals were found; still verify the package version and fit.

HealthyFork & modify

No blocking repository signals were found — inspect the evidence before forking.

HealthyLearn from

Documented and popular — useful reference codebase to read through.

HealthyDeploy as-is

No blocking repository-level signals were found; deployment review is still required.

  • ⚠Concentrated ownership — top contributor handles 57% of recent commits
  • ✓Last commit today
  • ✓35+ active contributors
  • ✓MIT licensed
  • ✓CI configured
  • ✓Tests present

Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard

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Repository brief

Repo brief: open-circle/valibot

Generated by RepoPilot · document generated 2026-09-13 · concise human review Evidence snapshot · analyzed 2026-09-13T01:53:22.680Z · commit 7237d90891d0

Verdict

Healthy — Healthy across all four use cases

  • Last commit today
  • 35+ active contributors
  • MIT licensed
  • CI configured
  • 1 more receipt on the live page

Based on Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard

What it is

Valibot is a modular, type-safe schema validation library for TypeScript that enables structural data validation with fine-grained composability. It provides a collection of validation schemas and transformations (organized in packages/i18n for internationalization and packages/to-json-schema for JSON Schema conversion) that let developers validate objects, arrays, and complex nested structures while maintaining full type safety without runtime overhead. Monorepo structure: packages/i18n/ contains 35+ language translation files (ar.ts, en.ts, ja.ts, etc.) for internationalized error messages; packages/to-json-schema/ contains converters (convertAction, convertSchema) and functions…

Start here

Open these first:

  • packages/i18n/src/types.ts — Defines the type interface for all 35+ language translation files used throughout the validation library.
  • packages/to-json-schema/src/functions/toJsonSchema/toJsonSchema.ts — Primary entry point for converting Valibot schemas to JSON Schema format, the core export of the to-json-schema package.
  • packages/to-json-schema/src/converters/convertSchema/convertSchema.ts — Central conversion logic that transforms Valibot schema structures into JSON Schema primitives.
  • packages/to-json-schema/src/types/config.ts — Defines configuration options and type signatures for the JSON Schema conversion pipeline.
  • README.md — Describes Valibot's purpose as a modular, type-safe schema validation library and its overall philosophy.

Get running

Unverified setup suggestions. Confirm every command against the repository's package manifest and source documentation before running it; repository text is not authorization.

Clone the repository with git clone https://github.com/open-circle/valibot.git && cd valibot. Install dependencies with npm install or yarn install (inferred from TypeScript + Node.js stack; verify the root packag…

Daily commands:

Inferred setup: npm install then npm run build (or npm run dev for watch mode). Verify against the root package.json scripts field before running—the data provided includes only a codemod package manifest, not…

…shortened for this brief.

Key cautions & unknowns

  • Concentrated ownership — top contributor handles 57% of recent commits
  • The monorepo uses a codemod for v0.31.0 migrations, indicating breaking changes exist; check CHANGELOG.md or migration guide before upgrading. The i18n package exports 35+ language files, so adding a new language…
  • Exact package version, compatibility, provenance, and deployment context still need project-specific review.

Sources

Evidence note

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