CodeSampleX

Sample

@electron/windows-sign 1.2.2: sign

Verified sample for npm @electron/windows-sign 1.2.2: sign. The contract ran on node 22 · linux alpine/x64 · docker and passed.

sha256:b0c6b8e1e293233bf7b1f4140606b531864ada77e640910850877adb013dbee0

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 alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-27

Case

HOW
Goal
verify sign in pkg:npm/%40electron/windows-sign@1.2.2
Packages
Symbols
  • sign
Environment
node 22.23.2
Created
2026-08-27T20:33:30Z

Contract

  1. sign executes custom hookFunction asynchronously for each specified file path in files option
  2. sign recursively discovers Windows executable and installer files from appDirectory when files option is omitted
  3. sign discovers JavaScript files when signJavaScript option is enabled
  4. sign loads custom hook module from hookModulePath when hookFunction is not directly provided

Files

  • PROMPT.md
  • csx.json
  • index.js
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.cjs

Download the source artifact (tar.gz)

Source

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 sign in pkg:npm/%40electron/windows-sign@1.2.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40electron/windows-sign@1.2.2
Demonstrate these symbols/APIs:
  - sign

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:ee8610ec125ba238f393d16ae4e3eaa9f4935fb169355445371ebf8c05fa891c","constraints":{"executionContext":"node"},"contract":["sign executes custom hookFunction asynchronously for each specified file path in files option","sign recursively discovers Windows executable and installer files from appDirectory when files option is omitted","sign discovers JavaScript files when signJavaScript option is enabled","sign loads custom hook module from hookModulePath when hookFunction is not directly provided"],"goal":"verify sign in pkg:npm/%40electron/windows-sign@1.2.2","kind":"HOW","packages":["pkg:npm/%40electron/windows-sign@1.2.2"],"schemaVersion":1,"symbols":["sign"]},"contractCommand":["node","test/contract.cjs"],"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/%40electron/windows-sign@1.2.2"],"schemaVersion":1,"subject":"pkg:npm/%40electron/windows-sign@1.2.2","symbols":["sign"],"verifierAdapter":"node-typescript@1"}
index.js
'use strict';

const { sign } = require('@electron/windows-sign');

async function signFilesWithHook(files, hookFunction) {
  return await sign({
    files,
    hookFunction
  });
}

async function signDirectoryWithHook(appDirectory, hookFunction, options = {}) {
  return await sign({
    appDirectory,
    hookFunction,
    ...options
  });
}

module.exports = {
  sign,
  signFilesWithHook,
  signDirectoryWithHook
};
package-lock.json
{
  "name": "sample-electron-windows-sign",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-electron-windows-sign",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@electron/windows-sign": "1.2.2"
      }
    },
    "node_modules/@electron/windows-sign": {
      "version": "1.2.2",
      "resolved": "https://registry.npmjs.org/@electron/windows-sign/-/windows-sign-1.2.2.tgz",
      "integrity": "sha512-dfZeox66AvdPtb2lD8OsIIQh12Tp0GNCRUDfBHIKGpbmopZto2/A8nSpYYLoedPIHpqkeblZ/k8OV0Gy7PYuyQ==",
      "license": "BSD-2-Clause",
      "dependencies": {
        "cross-dirname": "^0.1.0",
        "debug": "^4.3.4",
        "fs-extra": "^11.1.1",
        "minimist": "^1.2.8",
        "postject": "^1.0.0-alpha.6"
      },
      "bin": {
        "electron-windows-sign": "bin/electron-windows-sign.js"
      },
      "engines": {
        "node": ">=14.14"
      }
    },
    "node_modules/commander": {
      "version": "9.5.0",
      "resolved": "https://registry.npmjs.org/commander/-/commander-9.5.0.tgz",
      "integrity": "sha512-KRs7WVDKg86PWiuAqhDrAQnTXZKraVcCc6vFdL14qrZ/DcWwuRo7VoiYXalXO7S5GKpqYiVEwCbgFDfxNHKJBQ==",
      "license": "MIT",
      "engines": {
        "node": "^12.20.0 || >=14"
      }
    },
    "node_modules/cross-dirname": {
      "version": "0.1.0",
      "resolved": "https://registry.npmjs.org/cross-dirname/-/cross-dirname-0.1.0.tgz",
      "integrity": "sha512-+R08/oI0nl3vfPcqftZRpytksBXDzOUveBq/NBVx0sUp1axwzPQrKinNx5yd5sxPu8j1wIy8AfnVQ+5eFdha6Q==",
      "license": "MIT"
    },
    "node_modules/debug": {
      "version": "4.4.3",
      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
      "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
      "license": "MIT",
      "dependencies": {
        "ms": "^2.1.3"
      },
      "engines": {
        "node": ">=6.0"
      },
      "peerDependenciesMeta": {
        "supports-color": {
          "optional": true
        }
      }
    },
    "node_modules/fs-extra": {
      "version": "11.4.0",
      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-11.4.0.tgz",
      "integrity": "sha512-EQsFzMUJkCKGr1ePqlYADkIUmHW1s3ZXr5Yqy6wbGrfUCphpl2maM/kyOIRA2HpP3AaFQTZXD4ldjek+nccddA==",
      "license": "MIT",
      "dependencies": {
        "graceful-fs": "^4.2.0",
        "jsonfile": "^6.0.1",
        "universalify": "^2.0.0"
      },
      "engines": {
        "node": ">=14.14"
      }
    },
    "node_modules/graceful-fs": {
      "version": "4.2.11",
      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.11.tgz",
      "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==",
      "license": "ISC"
    },
    "node_modules/jsonfile": {
      "version": "6.2.1",
      "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-6.2.1.tgz",
      "integrity": "sha512-zwOTdL3rFQ/lRdBnntKVOX6k5cKJwEc1HdilT71BWEu7J41gXIB2MRp+vxduPSwZJPWBxEzv4yH1wYLJGUHX4Q==",
      "license": "MIT",
      "dependencies": {
        "universalify": "^2.0.0"
      },
      "optionalDependencies": {
        "graceful-fs": "^4.1.6"
      }
    },
    "node_modules/minimist": {
      "version": "1.2.8",
      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
      "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
      "license": "MIT",
      "funding": {
        "url": "https://github.com/sponsors/ljharb"
      }
    },
    "node_modules/ms": {
      "version": "2.1.3",
      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
      "license": "MIT"
    },
    "node_modules/postject": {
      "version": "1.0.0-alpha.6",
      "resolved": "https://registry.npmjs.org/postject/-/postject-1.0.0-alpha.6.tgz",
      "integrity": "sha512-b9Eb8h2eVqNE8edvKdwqkrY6O7kAwmI8kcnBv1NScolYJbo59XUF0noFq+lxbC1yN20bmC0WBEbDC5H/7ASb0A==",
      "license": "MIT",
      "dependencies": {
        "commander": "^9.4.0"
      },
      "bin": {
        "postject": "dist/cli.js"
      },
      "engines": {
        "node": ">=14.0.0"
      }
    },
    "node_modules/universalify": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/universalify/-/universalify-2.0.1.tgz",
      "integrity": "sha512-gptHNQghINnc/vTGIk0SOFGFNXw7JVrlRUtConJRlvaw6DuX0wO5Jeko9sWrMBhh+PsYAZ7oXAiOnf/UKogyiw==",
      "license": "MIT",
      "engines": {
        "node": ">= 10.0.0"
      }
    }
  }
}
package.json
{
  "name": "sample-electron-windows-sign",
  "version": "1.0.0",
  "private": true,
  "description": "verify sign in pkg:npm/%40electron/windows-sign@1.2.2",
  "main": "index.js",
  "scripts": {
    "test": "node test/contract.cjs"
  },
  "dependencies": {
    "@electron/windows-sign": "1.2.2"
  },
  "license": "MIT-0"
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify sign in pkg:npm/%40electron/windows-sign@1.2.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40electron/windows-sign@1.2.2"
  ],
  "symbols": [
    "sign"
  ]
}
test/contract.cjs
'use strict';

const assert = require('assert');
const path = require('path');
const fs = require('fs');
const os = require('os');
const { sign, signFilesWithHook, signDirectoryWithHook } = require('../index.js');

async function run() {
  const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'csx-winsign-contract-'));

  try {
    // Contract assertion 1: sign executes custom hookFunction asynchronously for each specified file path in files option
    const file1 = path.join(tmpDir, 'bin1.exe');
    const file2 = path.join(tmpDir, 'bin2.dll');
    fs.writeFileSync(file1, 'binary 1 content');
    fs.writeFileSync(file2, 'binary 2 content');

    const signedFiles = [];
    await sign({
      files: [file1, file2],
      hookFunction: async (filePath) => {
        signedFiles.push(filePath);
      }
    });

    assert.strictEqual(signedFiles.length, 2, 'hookFunction should be called for each file');
    assert.strictEqual(signedFiles[0], file1, 'first file should match');
    assert.strictEqual(signedFiles[1], file2, 'second file should match');

    // Helper export test: signFilesWithHook
    const helperSigned = [];
    await signFilesWithHook([file1], async (f) => { helperSigned.push(f); });
    assert.strictEqual(helperSigned.length, 1);
    assert.strictEqual(helperSigned[0], file1);

    // Contract assertion 2: sign recursively discovers Windows executable and installer files from appDirectory when files option is omitted
    const subDir = path.join(tmpDir, 'nested');
    fs.mkdirSync(subDir, { recursive: true });
    const subExe = path.join(subDir, 'nested.msi');
    const txtFile = path.join(tmpDir, 'notes.txt');
    const jsFile = path.join(tmpDir, 'script.js');
    fs.writeFileSync(subExe, 'installer');
    fs.writeFileSync(txtFile, 'text');
    fs.writeFileSync(jsFile, 'console.log()');

    const discoveredFiles = [];
    await sign({
      appDirectory: tmpDir,
      hookFunction: async (filePath) => {
        discoveredFiles.push(filePath);
      }
    });

    assert(discoveredFiles.includes(file1), 'discovered files should include bin1.exe');
    assert(discoveredFiles.includes(file2), 'discovered files should include bin2.dll');
    assert(discoveredFiles.includes(subExe), 'discovered files should recursively include nested.msi');
    assert(!discoveredFiles.includes(txtFile), 'discovered files should not include notes.txt');
    assert(!discoveredFiles.includes(jsFile), 'discovered files should not include script.js without signJavaScript');

    // Helper export test: signDirectoryWithHook
    const helperDiscovered = [];
    await signDirectoryWithHook(subDir, async (f) => { helperDiscovered.push(f); });
    assert.strictEqual(helperDiscovered.length, 1);
    assert.strictEqual(helperDiscovered[0], subExe);

    // Contract assertion 3: sign discovers JavaScript files when signJavaScript option is enabled
    const jsDiscovered = [];
    await sign({
      appDirectory: tmpDir,
      signJavaScript: true,
      hookFunction: async (filePath) => {
        jsDiscovered.push(filePath);
      }
    });
    assert(jsDiscovered.includes(jsFile), 'discovered files should include script.js when signJavaScript is true');

    // Contract assertion 4: sign loads custom hook module from hookModulePath when hookFunction is not directly provided
    const hookModulePath = path.join(tmpDir, 'hook-loader.js');
    const markerPath = path.join(tmpDir, 'hook-executed.marker');
    fs.writeFileSync(hookModulePath, `
      module.exports = async function(filePath) {
        require('fs').writeFileSync(${JSON.stringify(markerPath)}, filePath);
      };
    `);

    await sign({
      files: [file1],
      hookModulePath: hookModulePath
    });
    assert(fs.existsSync(markerPath), 'hookModulePath hook should have been executed');
    assert.strictEqual(fs.readFileSync(markerPath, 'utf8'), file1);

    console.log('Contract tests passed successfully.');
    process.exit(0);
  } finally {
    try {
      if (fs.existsSync(tmpDir)) {
        fs.rmSync(tmpDir, { recursive: true, force: true });
      }
    } catch (e) {
      // Ignore cleanup error
    }
  }
}

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

Origin Seeder

anonymous