Skip to content

fix: use Zod 4 native toJSONSchema for schema conversion #56

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jpr5 merged 1 commit into from
May 15, 2026
Merged

fix: use Zod 4 native toJSONSchema for schema conversion #56

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 10 additions & 2 deletions src/webview/hook-preview/form/schema/standard-schema.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@ import type { FormSchema } from "./types";

interface StandardSchemaLike {
"~standard"?: { vendor?: string; version?: number };
/** Zod 4+ exposes a native toJSONSchema() method on schema objects. */
toJSONSchema?: () => Record<string, unknown>;
}

export function standardSchemaToFormSchema(schema: unknown): FormSchema {
Expand All @@ -12,8 +14,14 @@ export function standardSchemaToFormSchema(schema: unknown): FormSchema {

if (vendor === "zod") {
try {
const json = zodToJsonSchema(
schema as Parameters<typeof zodToJsonSchema>[0],
// Zod 4+ has a native toJSONSchema(); prefer it over zod-to-json-schema
// which doesn't fully support Zod 4's internal schema representation.
const json = (
typeof s?.toJSONSchema === "function"
? s.toJSONSchema()
: zodToJsonSchema(
schema as Parameters<typeof zodToJsonSchema>[0],
)
) as JSONSchemaNode;
return jsonSchemaToFormSchema(json);
} catch (err) {
Expand Down