Support integer type for min_value and max_value actions

[Copilot]

• Reproduce the issue to confirm the problem
• Analyze the code to identify all places where 'number' type check needs to include 'integer'
• Update convertAction.ts to support 'integer' type for min_value and max_value actions
• Add unit tests for min_value and max_value actions with integer type
• Run tests to verify the fix (all 151 tests passing)
• Run linter (ESLint and TypeScript compiler pass)
• Clean up test files used for reproduction
• Remove unnecessary tsx dependency from package.json

Original prompt

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This section details on the original issue you should resolve

<issue_title>[to-json-schema] "min_value" action is not supported on type "integer"</issue_title>
<issue_description>continued from discussion in #1338

i see a The "min_value" action is not supported on type "integer" warning when transforming the following schema - although the json schema output looks ok to me:

import { toJsonSchema } from "@valibot/to-json-schema";
import * as v from "valibot";

const schema = v.pipe(v.number(), v.integer(), v.minValue(1));

console.log(toJsonSchema(schema, { errorMode: "warn" }));

Output:

The "min_value" action is not supported on type "integer".
{
  '$schema': 'http://json-schema.org/draft-07/schema#',
  type: 'integer',
  minimum: 1
}

</issue_description>

<agent_instructions>We should also support type: 'integer' for 'min_value' and 'max_value' actions and probably everywhere else where type: 'number' is currently already supported. Please check and update packages/to-json-schema/src/converters/convertAction/convertAction.ts. Also update the unite tests.

For more context on JSON Schema numeric types see: https://json-schema.org/understanding-json-schema/reference/numeric#integer</agent_instructions>

Comments on the Issue (you are @copilot in this section)

@fabian-hiller Thank you for creating this issue. I probably just forgot to allow integers besides numbers. I think this is the line we need to fix: https://github.com/fabian-hiller/valibot/blob/f7c4dad79c435106bf66a08e85cd510e783675af/packages/to-json-schema/src/converters/convertAction/convertAction.ts#L294

• Fixes [to-json-schema] "min_value" action is not supported on type "integer" #1339

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Project	Deployment	Preview	Comments	Updated (UTC)
valibot	Ready	Preview	Comment	Dec 3, 2025 4:44am

[fabian-hiller]

@copilot why did you modify the package.json? Can you undo it if it's not necessary?

[Copilot]

@copilot why did you modify the package.json? Can you undo it if it's not necessary?

Reverted the tsx dependency in commit 7e7ed25. It was added during initial testing but wasn't needed for the actual fix.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/valibot@1367

commit: 287733e

[Copilot]

Pull request overview

This PR adds support for the integer type when using minValue and maxValue actions in the valibot to-json-schema converter. Previously, these actions only supported the number type, which caused incorrect warnings when using integer schemas.

• Updated type checking logic for min_value and max_value actions to accept both number and integer types
• Added comprehensive test coverage for the new integer support
• Updated CHANGELOG to document the enhancement

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
packages/to-json-schema/src/converters/convertAction/convertAction.ts	Added integer type support to min_value and max_value action validation
packages/to-json-schema/src/converters/convertAction/convertAction.test.ts	Added unit tests verifying correct behavior for minValue and maxValue actions with integer types
packages/to-json-schema/CHANGELOG.md	Documented the new integer type support for minValue and maxValue actions

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