CodeSampleX

Ejemplo

cacache 19.0.1: rm

Muestra verificada para npm cacache 19.0.1: rm. El contrato se ejecutó en node 22 · linux debian/x64 · docker y pasó: cacache.rm and cacache.rm.entry remove…

sha256:4b7a2167a5b34883242762902a3c10ab817f596221f3b7d5ec2bcb3c96f589f9

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…		 2026-10-17

Caso

HOW
Objetivo
verify cacache.rm in pkg:npm/cacache@19.0.1
Paquetes
Símbolos
  • cacache.rm
Creado
2026-10-17T13:17:04Z

Contrato

  1. cacache.rm and cacache.rm.entry remove a key from the index while leaving its content blob intact until removed
  2. cacache.rm.content deletes the stored content blob identified by its sha512 integrity digest
  3. cacache.rm.all clears all index and content directories from the cache

Archivos

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • 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 cacache.rm in pkg:npm/cacache@19.0.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/cacache@19.0.1
Demonstrate these symbols/APIs:
  - cacache.rm

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:sha256:901c454bbbb1b05f91392e8835c55ade86eddaf2caf992c8e6c2718907b54398","contract":["cacache.rm and cacache.rm.entry remove a key from the index while leaving its content blob intact until removed","cacache.rm.content deletes the stored content blob identified by its sha512 integrity digest","cacache.rm.all clears all index and content directories from the cache"],"goal":"verify cacache.rm in pkg:npm/cacache@19.0.1","kind":"HOW","packages":["pkg:npm/cacache@19.0.1"],"schemaVersion":1,"symbols":["cacache.rm"]},"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/cacache@19.0.1"],"schemaVersion":1,"subject":"pkg:npm/cacache@19.0.1","symbols":["cacache.rm"],"verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "cacache-rm-sample",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "cacache-rm-sample",
      "version": "1.0.0",
      "dependencies": {
        "cacache": "19.0.1"
      }
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      "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"
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package.json
{
  "name": "cacache-rm-sample",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "cacache": "19.0.1"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify cacache.rm in pkg:npm/cacache@19.0.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/cacache@19.0.1"
  ],
  "symbols": [
    "cacache.rm"
  ]
}
src/index.mjs
import cacache from 'cacache';

export async function verifyCacacheRemoval(cacheDir) {
  const keyAlpha = 'item-alpha';
  const keyBeta = 'item-beta';
  const keyGamma = 'item-gamma';

  const integrityAlpha = await cacache.put(cacheDir, keyAlpha, Buffer.from('alpha-payload', 'utf8'));
  const integrityBeta = await cacache.put(cacheDir, keyBeta, Buffer.from('beta-payload', 'utf8'));
  const integrityGamma = await cacache.put(cacheDir, keyGamma, Buffer.from('gamma-payload', 'utf8'));

  // Remove index entry via cacache.rm(cache, key) directly (alias of cacache.rm.entry)
  await cacache.rm(cacheDir, keyAlpha);
  const alphaInfoAfterRm = await cacache.get.info(cacheDir, keyAlpha);
  const alphaContentStillPresent = await cacache.get.hasContent(cacheDir, integrityAlpha);

  // Remove content blob via cacache.rm.content(cache, integrity)
  await cacache.rm.content(cacheDir, integrityAlpha);
  const alphaContentAfterRmContent = await cacache.get.hasContent(cacheDir, integrityAlpha);

  // Remove index entry via cacache.rm.entry(cache, key)
  await cacache.rm.entry(cacheDir, keyBeta);
  const betaInfoAfterEntryRm = await cacache.get.info(cacheDir, keyBeta);

  // Remove all remaining index and content directories via cacache.rm.all(cache)
  await cacache.rm.all(cacheDir);
  const listingAfterRmAll = await cacache.ls(cacheDir);
  const gammaContentAfterRmAll = await cacache.get.hasContent(cacheDir, integrityGamma);

  return {
    alphaInfoAfterRm,
    alphaContentStillPresent: Boolean(alphaContentStillPresent),
    alphaContentAfterRmContent,
    betaInfoAfterEntryRm,
    remainingKeysAfterRmAll: Object.keys(listingAfterRmAll),
    gammaContentAfterRmAll
  };
}
test/contract.mjs
import assert from 'node:assert/strict';
import { rm } from 'node:fs/promises';
import { verifyCacacheRemoval } from '../src/index.mjs';

const cacheDir = './.cache-rm-test';

await rm(cacheDir, { recursive: true, force: true });
try {
  const result = await verifyCacacheRemoval(cacheDir);

  assert.equal(result.alphaInfoAfterRm, null);
  assert.equal(result.alphaContentStillPresent, true);
  assert.equal(result.alphaContentAfterRmContent, false);
  assert.equal(result.betaInfoAfterEntryRm, null);
  assert.deepEqual(result.remainingKeysAfterRmAll, []);
  assert.equal(result.gammaContentAfterRmAll, false);
} finally {
  await rm(cacheDir, { recursive: true, force: true });
}

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