zod 4.6.7: z.object, z.email, z.number

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify pkg:npm/zod@4.6.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/zod@4.6.7

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:000a417dc6365a5b13ed9b4961e62a2f90d7ae78977622af929fbc2ae7d941ca","contract":["parse valid object input with z.object schema and return the typed value","safeParse invalid object input and return issues with path, code, and message","throw ZodError when parse fails on invalid input"],"goal":"verify pkg:npm/zod@4.6.7","kind":"HOW","packages":["pkg:npm/zod@4.6.7"],"schemaVersion":1,"symbols":["z.object","z.email","z.number","safeParse","ZodError"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","runtime":"node","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/zod@4.6.7"],"schemaVersion":1,"subject":"pkg:npm/zod@4.6.7","symbols":["z.object","z.email","z.number","safeParse","ZodError"],"verifierAdapter":"node-typescript@1"}

{
  "name": "verify-zod",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "verify-zod",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "zod": "4.6.7"
      }
    },
    "node_modules/zod": {
      "version": "4.6.7",
      "resolved": "https://registry.npmjs.org/zod/-/zod-4.6.7.tgz",
      "integrity": "sha512-g8W2D2kU6a8untc053fX1uVBKzM7yqAxW/3zwk83+6RyF2+SKOuV+c0wBDhUwzV1PaGapmZH+rmcUzPf+3CGwg==",
      "license": "MIT",
      "funding": {
        "url": "https://github.com/sponsors/colinhacks"
      }
    }
  }
}

{
  "name": "verify-zod",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "zod": "4.6.7"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/zod@4.6.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/zod@4.6.7"
  ]
}

import { z } from "zod";

export const UserSchema = z.object({
  email: z.email(),
  age: z.number().int().min(0),
});

export function parseUser(input) {
  return UserSchema.parse(input);
}

export function validateUser(input) {
  const result = UserSchema.safeParse(input);
  if (result.success) {
    return { ok: true, data: result.data };
  }
  return { ok: false, issues: result.error.issues };
}

import assert from "node:assert/strict";
import { z } from "zod";
import { parseUser, validateUser } from "../src/index.mjs";

const validInput = { email: "user@example.com", age: 25 };
assert.deepEqual(parseUser(validInput), validInput);

const okResult = validateUser(validInput);
assert.equal(okResult.ok, true);
assert.deepEqual(okResult.data, validInput);

const badResult = validateUser({ email: "invalid-email", age: -5 });
assert.equal(badResult.ok, false);
assert.equal(badResult.issues.length, 2);
for (const issue of badResult.issues) {
  assert.ok(Array.isArray(issue.path));
  assert.equal(typeof issue.code, "string");
  assert.equal(typeof issue.message, "string");
}

assert.throws(
  () => parseUser({ email: 123, age: "nope" }),
  (err) => err instanceof z.ZodError && err.issues.length === 2,
);

console.log("contract passed");