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`z.json()` projects a self-referential `$defs/__schema0` entry. Twenty
tool input schemas and 123 output schemas carried it, and clients or
model APIs that reject recursive JSON Schemas refuse the whole tool
list. Every JSON value satisfies `{}`, so the shared JSON value schema
now advertises that. Runtime parsing still admits only JSON values.
Refs #919
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: N0zoM1z0 <1705004398@qq.com>
38 lines
1.1 KiB
TypeScript
38 lines
1.1 KiB
TypeScript
import { Ajv2020 } from "ajv/dist/2020.js";
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import { expect, it } from "vitest";
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import { z } from "zod";
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import { jsonObjectSchema, jsonValueSchema } from "./jsonValue.js";
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const values = [
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"text",
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0,
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false,
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null,
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[],
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{},
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{ nested: [{ deeper: [1, "two", null, { three: true }] }] },
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];
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it("projects JSON values without recursive definitions", () => {
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for (const io of ["input", "output"] as const) {
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const schema = z.toJSONSchema(
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z.object({ value: jsonValueSchema, map: jsonObjectSchema }),
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{ io },
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);
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expect(JSON.stringify(schema)).not.toContain("$ref");
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expect(schema).not.toHaveProperty("$defs");
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const validate = new Ajv2020({ strict: false }).compile(schema);
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for (const value of values)
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expect(validate({ value, map: { value } })).toBe(true);
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expect(validate({ value: 1, map: [] })).toBe(false);
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}
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});
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it("still parses only JSON values at runtime", () => {
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for (const value of values)
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expect(jsonValueSchema.safeParse(value).success).toBe(true);
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for (const value of [undefined, Number.NaN, Infinity, () => 0, [undefined]])
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expect(jsonValueSchema.safeParse(value).success).toBe(false);
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});
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