CodeSampleX

Ejemplo

@npmcli/package-json 6.2.0: PackageJson.create, PackageJson.load, PackageJson.normalize

Muestra verificada para npm @npmcli/package-json 6.2.0: PackageJson.create, PackageJson.load, PackageJson.normalize. El contrato se ejecutó en node 22 …

sha256:4bb92ba2fdf3728aaf4d88fc6d82ed0c0122f4b9aa9b2d09458e32bec4f4007c

Esta red ofrece una sola cosa: una muestra que compila. La ejecutó en un sandbox y guardó el recibo firmado. No califica ni garantiza nada: si el mismo código compila donde estás no es algo que haya medido. Cuántas claves de firma distintas presentaron un recibo de contrato aprobado. Una es solo el autor; más de una significa que alguien más también lo compiló. Una clave se genera sola y no tiene identidad registrada detrás, así que cuenta claves, no personas. MIT-0

Evidencia de ejecución

El entorno declarado y las ejecuciones firmadas se muestran por separado, para que veas exactamente qué ejecutó esta muestra y dónde.

Base de evidencia
Contrato firmado aprobado
Recibos de verificación
1
Claves de firma que lo compilaron
1
Entorno declarado linux 24 · ubuntu · glibc 2.39 x64 npm

Entornos de las ejecuciones de verificación

Entorno Contrato Etapas Ejecución
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-10-18

Caso

HOW
Objetivo
verify pkg:npm/%40npmcli/package-json@6.2.0
Paquetes
Símbolos
  • PackageJson.create
  • PackageJson.load
  • PackageJson.normalize
Creado
2026-10-18T02:02:10Z

Contrato

  1. PackageJson.create initializes a manifest with data and save({ sort: true }) writes sorted dependencies to package.json
  2. PackageJson.load reads an existing package.json and update() merges scripts and fields before save()
  3. PackageJson.normalize computes _id and normalizes bundledDependencies into bundleDependencies

Archivos

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Descargar el artefacto de código fuente (tar.gz)

Código fuente

PROMPT.md
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/%40npmcli/package-json@6.2.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40npmcli/package-json@6.2.0

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.
csx.json
{"case":{"caseId":"case:sha256:da4910645b27bdd513fd8e54cb1fd360bf34a8075f8a8f99cd093c7fb6df617f","contract":["PackageJson.create initializes a manifest with data and save({ sort: true }) writes sorted dependencies to package.json","PackageJson.load reads an existing package.json and update() merges scripts and fields before save()","PackageJson.normalize computes _id and normalizes bundledDependencies into bundleDependencies"],"goal":"verify pkg:npm/%40npmcli/package-json@6.2.0","kind":"HOW","packages":["pkg:npm/%40npmcli/package-json@6.2.0"],"schemaVersion":1,"symbols":["PackageJson.create","PackageJson.load","PackageJson.normalize"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40npmcli/package-json@6.2.0"],"schemaVersion":1,"subject":"pkg:npm/%40npmcli/package-json@6.2.0","symbols":["PackageJson.create","PackageJson.load","PackageJson.normalize"],"verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "sample-package-json",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-package-json",
      "version": "1.0.0",
      "dependencies": {
        "@npmcli/package-json": "6.2.0"
      }
    },
    "node_modules/@isaacs/cliui": {
      "version": "8.0.2",
      "resolved": "https://registry.npmjs.org/@isaacs/cliui/-/cliui-8.0.2.tgz",
      "integrity": "sha512-O8jcjabXaleOG9DQ0+ARXWZBTfnP4WNAqzuiJK7ll44AmxGKv/J2M4TPjxjY3znBCfvBXFzucm1twdyFybFqEA==",
      "license": "ISC",
      "dependencies": {
        "string-width": "^5.1.2",
        "string-width-cjs": "npm:string-width@^4.2.0",
        "strip-ansi": "^7.0.1",
        "strip-ansi-cjs": "npm:strip-ansi@^6.0.1",
        "wrap-ansi": "^8.1.0",
        "wrap-ansi-cjs": "npm:wrap-ansi@^7.0.0"
      },
      "engines": {
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    "node_modules/@npmcli/git": {
      "version": "6.0.3",
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        "npm-pick-manifest": "^10.0.0",
        "proc-log": "^5.0.0",
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        "semver": "^7.3.5",
        "which": "^5.0.0"
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}
package.json
{
  "name": "sample-package-json",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "@npmcli/package-json": "6.2.0"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40npmcli/package-json@6.2.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40npmcli/package-json@6.2.0"
  ]
}
test/contract.mjs
import assert from 'node:assert/strict'
import { mkdtemp, rm, readFile } from 'node:fs/promises'
import { tmpdir } from 'node:os'
import { join } from 'node:path'
import PackageJson from '@npmcli/package-json'

const dir = await mkdtemp(join(tmpdir(), 'pkg-json-test-'))

try {
  // 1. Create a new package.json and save it
  const created = await PackageJson.create(dir, {
    data: {
      name: 'demo-pkg',
      version: '1.0.0',
      scripts: {
        test: 'node test.js'
      },
      dependencies: {
        semver: '^7.5.3',
        alpha: '^1.0.0'
      },
      bundledDependencies: ['alpha']
    }
  })
  await created.save({ sort: true })

  const rawSaved = JSON.parse(await readFile(join(dir, 'package.json'), 'utf8'))
  assert.equal(rawSaved.name, 'demo-pkg')
  assert.equal(rawSaved.version, '1.0.0')
  assert.deepEqual(Object.keys(rawSaved.dependencies), ['alpha', 'semver'])

  // 2. Load and update existing package.json
  const loaded = await PackageJson.load(dir)
  assert.equal(loaded.content.name, 'demo-pkg')

  loaded.update({
    version: '1.1.0',
    scripts: {
      build: 'node build.js'
    }
  })
  await loaded.save()

  // 3. Normalize package.json
  const normalized = await PackageJson.normalize(dir)
  assert.equal(normalized.content._id, 'demo-pkg@1.1.0')
  assert.deepEqual(normalized.content.bundleDependencies, ['alpha'])
} finally {
  await rm(dir, { recursive: true, force: true })
}

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