Valibot toJsonSchema v1.5

[fabian-hiller]

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Project	Deployment	Preview	Comments	Updated (UTC)
valibot	Ready	Preview	Comment	Dec 12, 2025 2:57am

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commit: df48dd9

[Copilot]

Pull request overview

This PR adds support for JSON Schema draft-2020-12 alongside the existing draft-07 support, removes the dependency on @types/json-schema, and improves record schema conversion by adding propertyNames support for key validation constraints.

Key Changes

• Replaced external JSONSchema7 type with a custom JsonSchema type that supports both draft-07 and draft-2020-12
• Added a target configuration option to specify which JSON Schema draft version to use (defaults to 'draft-07')
• Enhanced record schema conversion to include propertyNames for key validation, removing the previous restriction on pipes in record keys

Reviewed changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Updated lockfile to reflect removal of @types/json-schema dependency
packages/to-json-schema/package.json	Removed @types/json-schema from devDependencies
packages/to-json-schema/src/types/schema.ts	Added custom JsonSchema interface supporting both draft-07 and draft-2020-12 with deprecated JSONSchema7 alias
packages/to-json-schema/src/types/index.ts	New index file exporting type definitions
packages/to-json-schema/src/types/config.ts	Updated all type references from JSONSchema7 to JsonSchema and added target option
packages/to-json-schema/src/index.ts	Updated exports to use new types structure instead of external json-schema package
packages/to-json-schema/src/vitest/createContext.ts	Updated import path for types
packages/to-json-schema/src/utils/handleError.ts	Updated import path for types
packages/to-json-schema/src/functions/toJsonSchema/toJsonSchema.ts	Updated type references and added logic to set appropriate $schema based on target
packages/to-json-schema/src/functions/toJsonSchemaDefs/toJsonSchemaDefs.ts	Updated type references from JSONSchema7 to JsonSchema
packages/to-json-schema/src/converters/convertSchema/convertSchema.ts	Added conditional logic for tuple conversion based on target (prefixItems vs items array), and added propertyNames support for record schemas
packages/to-json-schema/src/converters/convertAction/convertAction.ts	Updated type references from JSONSchema7 to JsonSchema
packages/to-json-schema/src/converters/convertSchema/convertSchema.test.ts	Updated tests to expect propertyNames in record schema output and removed obsolete pipe-in-key error tests
packages/to-json-schema/CHANGELOG.md	Added changelog entry for v1.5 with new features

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

Comments suppressed due to low confidence (1)

packages/to-json-schema/src/types/config.ts:102

• The documentation for the target option should explain the differences between draft-07 and draft-2020-12. For example, it should mention that draft-2020-12 uses prefixItems for tuple schemas whereas draft-07 uses an array for items.

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[Copilot]

Pull request overview

Copilot reviewed 14 out of 15 changed files in this pull request and generated 1 comment.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

Comments suppressed due to low confidence (1)

packages/to-json-schema/src/types/config.ts:101

• The documentation comment is slightly misleading. It states "The target JSON Schema draft version" but openapi-3.0 is not a JSON Schema draft version—it's the OpenAPI 3.0 Schema Object format. Consider updating to: "The target schema format. Supports JSON Schema draft versions and OpenAPI Schema Object format. Defaults to 'draft-07'."

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[Copilot]

Pull request overview

Copilot reviewed 21 out of 22 changed files in this pull request and generated 4 comments.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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