CodeSampleX

Sample

temp 0.9.4: dir

Verified sample for npm temp 0.9.4: dir. The contract ran on node 22 · linux debian/x64 · docker and passed: temp.dir exports a string path for the default…

sha256:62d04df55b68fab3cd5a44a9757bf47466b34ee2ff0bea4cbc7922f6947c6b60

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
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…
2026-09-04

Case

HOW
Goal
verify temp.dir in pkg:npm/temp@0.9.4
Packages
Symbols
  • temp.dir
Environment
node 22.23.2
Created
2026-09-04T17:30:40Z

Contract

  1. temp.dir exports a string path for the default temporary directory
  2. temp.dir is an absolute directory path matching the resolved system temporary directory
  3. temp.dir points to an existing directory on the filesystem
  4. temp.path generates file paths located inside temp.dir by default
  5. temp.mkdirSync creates directories located inside temp.dir by default
  6. temp.path allows overriding the destination directory via affixes dir property instead of temp.dir

Files

  • .npmrc
  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.mjs

Download the source artifact (tar.gz)

Source

.npmrc
audit=false
fund=false
update-notifier=false
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 temp.dir in pkg:npm/temp@0.9.4
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/temp@0.9.4
Demonstrate these symbols/APIs:
  - temp.dir
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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:dbed36dee0e5462824ad00aa982f3823e3f384ae47ca43de7c148b9d19a777fd","constraints":{"executionContext":"node"},"contract":["temp.dir exports a string path for the default temporary directory","temp.dir is an absolute directory path matching the resolved system temporary directory","temp.dir points to an existing directory on the filesystem","temp.path generates file paths located inside temp.dir by default","temp.mkdirSync creates directories located inside temp.dir by default","temp.path allows overriding the destination directory via affixes dir property instead of temp.dir"],"goal":"verify temp.dir in pkg:npm/temp@0.9.4","kind":"HOW","packages":["pkg:npm/temp@0.9.4"],"schemaVersion":1,"symbols":["temp.dir"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/temp@0.9.4"],"schemaVersion":1,"subject":"pkg:npm/temp@0.9.4","symbols":["temp.dir"],"verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "sample-temp-dir",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-temp-dir",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "temp": "0.9.4"
      }
    },
    "node_modules/balanced-match": {
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
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      "license": "MIT"
    },
    "node_modules/brace-expansion": {
      "version": "1.1.18",
      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.18.tgz",
      "integrity": "sha512-Edep/X9fGqVNmzKBVsDYIOtD+z1tuezV70LBjdCst9Tqu76lsnvRiZ6oTic1n+/BIwX6QDGAO94PN4N2SADvtw==",
      "license": "MIT",
      "dependencies": {
        "balanced-match": "^1.0.0",
        "concat-map": "0.0.1"
      }
    },
    "node_modules/concat-map": {
      "version": "0.0.1",
      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
      "license": "MIT"
    },
    "node_modules/fs.realpath": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
      "integrity": "sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==",
      "license": "ISC"
    },
    "node_modules/glob": {
      "version": "7.2.3",
      "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz",
      "integrity": "sha512-nFR0zLpU2YCaRxwoCJvL6UvCH2JFyFVIvwTLsIf21AuHlMskA1hhTdk+LlYJtOlYt9v6dvszD2BGRqBL+iQK9Q==",
      "deprecated": "Old versions of glob are not supported, and contain widely publicized security vulnerabilities, which have been fixed in the current version. Please update. Support for old versions may be purchased (at exorbitant rates) by contacting i@izs.me",
      "license": "ISC",
      "dependencies": {
        "fs.realpath": "^1.0.0",
        "inflight": "^1.0.4",
        "inherits": "2",
        "minimatch": "^3.1.1",
        "once": "^1.3.0",
        "path-is-absolute": "^1.0.0"
      },
      "engines": {
        "node": "*"
      },
      "funding": {
        "url": "https://github.com/sponsors/isaacs"
      }
    },
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      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
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      "deprecated": "This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.",
      "license": "ISC",
      "dependencies": {
        "once": "^1.3.0",
        "wrappy": "1"
      }
    },
    "node_modules/inherits": {
      "version": "2.0.4",
      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
      "license": "ISC"
    },
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      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
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      "engines": {
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    },
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      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
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      "license": "MIT",
      "funding": {
        "url": "https://github.com/sponsors/ljharb"
      }
    },
    "node_modules/mkdirp": {
      "version": "0.5.6",
      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
      "license": "MIT",
      "dependencies": {
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      "bin": {
        "mkdirp": "bin/cmd.js"
      }
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      "dependencies": {
        "glob": "^7.1.3"
      },
      "bin": {
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      }
    },
    "node_modules/temp": {
      "version": "0.9.4",
      "resolved": "https://registry.npmjs.org/temp/-/temp-0.9.4.tgz",
      "integrity": "sha512-yYrrsWnrXMcdsnu/7YMYAofM1ktpL5By7vZhf15CrXijWWrEYZks5AXBudalfSWJLlnen/QUJUB5aoB0kqZUGA==",
      "license": "MIT",
      "dependencies": {
        "mkdirp": "^0.5.1",
        "rimraf": "~2.6.2"
      },
      "engines": {
        "node": ">=6.0.0"
      }
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      "license": "ISC"
    }
  }
}
package.json
{
  "name": "sample-temp-dir",
  "version": "1.0.0",
  "private": true,
  "description": "Clean-room code sample for temp.dir",
  "main": "src/index.js",
  "license": "MIT-0",
  "dependencies": {
    "temp": "0.9.4"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify temp.dir in pkg:npm/temp@0.9.4",
  "kind": "HOW",
  "packages": [
    "pkg:npm/temp@0.9.4"
  ],
  "symbols": [
    "temp.dir"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
src/index.js
const temp = require('temp');

/**
 * Returns the default temporary directory path configured in the temp module.
 *
 * @returns {string} The default temporary directory path.
 */
function getTempDir() {
  return temp.dir;
}

module.exports = {
  temp,
  dir: temp.dir,
  getTempDir
};
test/contract.mjs
import assert from 'node:assert/strict';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import { createRequire } from 'node:module';

const require = createRequire(import.meta.url);
const { temp, dir, getTempDir } = require('../src/index.js');

async function runTests() {
  // 1. temp.dir exports a string path for the default temporary directory
  assert.strictEqual(typeof temp.dir, 'string', 'temp.dir must be a string');
  assert.strictEqual(typeof dir, 'string', 'exported dir must be a string');
  assert.strictEqual(typeof getTempDir(), 'string', 'getTempDir() must return a string');
  assert.strictEqual(getTempDir(), temp.dir, 'getTempDir() must equal temp.dir');

  // 2. temp.dir is an absolute directory path matching the resolved system temporary directory
  assert.strictEqual(path.isAbsolute(temp.dir), true, 'temp.dir must be an absolute path');
  assert.strictEqual(temp.dir, path.resolve(os.tmpdir()), 'temp.dir must equal path.resolve(os.tmpdir())');

  // 3. temp.dir points to an existing directory on the filesystem
  assert.strictEqual(fs.existsSync(temp.dir), true, 'temp.dir must exist on filesystem');
  assert.strictEqual(fs.statSync(temp.dir).isDirectory(), true, 'temp.dir must be a directory');

  // 4. temp.path generates file paths located inside temp.dir by default
  const defaultPath = temp.path({ prefix: 'contract-test-' });
  assert.strictEqual(path.dirname(defaultPath), temp.dir, 'default generated path must reside directly inside temp.dir');
  assert.strictEqual(defaultPath.startsWith(temp.dir), true, 'generated path must start with temp.dir');

  // 5. temp.mkdirSync creates directories located inside temp.dir by default
  const createdDir = temp.mkdirSync('contract-dir-');
  assert.strictEqual(path.dirname(createdDir), temp.dir, 'created directory must reside directly inside temp.dir');
  assert.strictEqual(fs.existsSync(createdDir), true, 'created directory must exist on filesystem');
  assert.strictEqual(fs.statSync(createdDir).isDirectory(), true, 'created path must be a directory');
  try {
    fs.rmdirSync(createdDir);
  } catch {
    // Ignore cleanup error
  }

  // 6. temp.path allows overriding the destination directory via affixes dir property instead of temp.dir
  const customParent = fs.mkdtempSync(path.join(temp.dir, 'custom-contract-root-'));
  const overriddenPath = temp.path({ dir: customParent, prefix: 'sub-' });
  assert.strictEqual(path.dirname(overriddenPath), customParent, 'overridden path directory must match custom parent');
  assert.notStrictEqual(path.dirname(overriddenPath), temp.dir, 'overridden path directory must not be temp.dir');
  try {
    fs.rmdirSync(customParent);
  } catch {
    // Ignore cleanup error
  }

  console.log('All contract assertions for temp.dir passed successfully.');
}

runTests().catch((err) => {
  console.error('Contract test failed:', err);
  process.exit(1);
});

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