CodeSampleX

Sample

cliui 8.0.1

Verified sample for npm cliui 8.0.1. The contract ran on node 22 · linux alpine/x64 · docker and passed: cliui initializes a layout instance with custom…

sha256:ee13b0e662819c6de774b5d2f3ff8d9242f3ec338d0a66232090a759e686b843

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…
2026-08-23

Case

HOW
Goal
verify pkg:npm/cliui@8.0.1
Packages
Environment
node 22.23.2
Created
2026-08-23T08:21:11Z

Contract

  1. cliui initializes a layout instance with custom options such as width
  2. div arranges multiple column objects into formatted text according to column widths
  3. div handles column alignment such as right-aligned columns
  4. div supports padding options for column spacing
  5. resetOutput clears the buffer so subsequent toString calls return an empty string
  6. formatColumns renders multiple rows with structured column layouts

Files

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

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 pkg:npm/cliui@8.0.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/cliui@8.0.1

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:f4be0599d1be12ed4f8eff577e82933989673aea8a52a9470718e362762aa26c","contract":["cliui initializes a layout instance with custom options such as width","div arranges multiple column objects into formatted text according to column widths","div handles column alignment such as right-aligned columns","div supports padding options for column spacing","resetOutput clears the buffer so subsequent toString calls return an empty string","formatColumns renders multiple rows with structured column layouts"],"goal":"verify pkg:npm/cliui@8.0.1","kind":"HOW","packages":["pkg:npm/cliui@8.0.1"],"schemaVersion":1},"contractCommand":["node","test/contract.js"],"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/cliui@8.0.1"],"schemaVersion":1,"subject":"pkg:npm/cliui@8.0.1","verifierAdapter":"node-typescript@1"}
package-lock.json
{
  "name": "sample-cliui",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-cliui",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "cliui": "8.0.1"
      }
    },
    "node_modules/ansi-regex": {
      "version": "5.0.1",
      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
      "license": "MIT",
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/ansi-styles": {
      "version": "4.3.0",
      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
      "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
      "license": "MIT",
      "dependencies": {
        "color-convert": "^2.0.1"
      },
      "engines": {
        "node": ">=8"
      },
      "funding": {
        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
      }
    },
    "node_modules/cliui": {
      "version": "8.0.1",
      "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
      "integrity": "sha512-BSeNnyus75C4//NQ9gQt1/csTXyo/8Sb+afLAkzAptFuMsod9HFokGNudZpi/oQV73hnVK+sR+5PVRMd+Dr7YQ==",
      "license": "ISC",
      "dependencies": {
        "string-width": "^4.2.0",
        "strip-ansi": "^6.0.1",
        "wrap-ansi": "^7.0.0"
      },
      "engines": {
        "node": ">=12"
      }
    },
    "node_modules/color-convert": {
      "version": "2.0.1",
      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
      "license": "MIT",
      "dependencies": {
        "color-name": "~1.1.4"
      },
      "engines": {
        "node": ">=7.0.0"
      }
    },
    "node_modules/color-name": {
      "version": "1.1.4",
      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
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      "license": "MIT"
    },
    "node_modules/is-fullwidth-code-point": {
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      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
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      "license": "MIT",
      "engines": {
        "node": ">=8"
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    },
    "node_modules/string-width": {
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      "license": "MIT",
      "dependencies": {
        "emoji-regex": "^8.0.0",
        "is-fullwidth-code-point": "^3.0.0",
        "strip-ansi": "^6.0.1"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/strip-ansi": {
      "version": "6.0.1",
      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
      "license": "MIT",
      "dependencies": {
        "ansi-regex": "^5.0.1"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/wrap-ansi": {
      "version": "7.0.0",
      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
      "license": "MIT",
      "dependencies": {
        "ansi-styles": "^4.0.0",
        "string-width": "^4.1.0",
        "strip-ansi": "^6.0.0"
      },
      "engines": {
        "node": ">=10"
      },
      "funding": {
        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
      }
    }
  }
}
package.json
{
  "name": "sample-cliui",
  "version": "1.0.0",
  "private": true,
  "description": "verify pkg:npm/cliui@8.0.1",
  "main": "src/index.js",
  "scripts": {
    "test": "node test/contract.js"
  },
  "dependencies": {
    "cliui": "8.0.1"
  },
  "license": "MIT-0"
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/cliui@8.0.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/cliui@8.0.1"
  ]
}
src/index.js
const cliui = require('cliui');

function createUI(options) {
  return cliui(options);
}

function formatColumns(rows, options) {
  const ui = cliui(options);
  for (const row of rows) {
    if (Array.isArray(row)) {
      ui.div(...row);
    } else {
      ui.div(row);
    }
  }
  return ui.toString();
}

module.exports = {
  cliui,
  createUI,
  formatColumns
};
test/contract.js
const assert = require('node:assert');
const cliui = require('cliui');
const { createUI, formatColumns } = require('../src/index.js');

// 1. cliui initializes a layout instance with custom options such as width
const ui1 = createUI({ width: 60 });
assert.strictEqual(ui1.width, 60, 'UI width should match the configured option');

// 2. div arranges multiple column objects into formatted text according to column widths
ui1.div(
  { text: 'colA', width: 20 },
  { text: 'colB', width: 20 }
);
const out1 = ui1.toString();
assert.strictEqual(out1, 'colA                colB', 'Columns should be positioned according to specified width');

// 3. div handles column alignment such as right-aligned columns
const ui2 = createUI({ width: 40 });
ui2.div(
  { text: 'Left', width: 20 },
  { text: 'Right', width: 20, align: 'right' }
);
const out2 = ui2.toString();
assert.strictEqual(out2, 'Left                               Right', 'Right alignment should pad content appropriately');

// 4. div supports padding options for column spacing
const ui3 = createUI({ width: 40 });
ui3.div(
  { text: 'Item', width: 10, padding: [0, 2, 0, 2] },
  { text: 'Val', width: 10 }
);
const out3 = ui3.toString();
assert.strictEqual(out3, '  Item    Val', 'Padding should add leading and trailing spaces around column text');

// 5. resetOutput clears the buffer so subsequent toString calls return an empty string
ui3.resetOutput();
assert.strictEqual(ui3.toString(), '', 'Buffer should be empty after resetOutput');

// 6. formatColumns helper correctly renders multiple rows
const multiRowOutput = formatColumns([
  [{ text: 'Header1', width: 15 }, { text: 'Header2', width: 15 }],
  [{ text: 'Row1', width: 15 }, { text: 'Row2', width: 15 }]
], { width: 30 });
assert.strictEqual(
  multiRowOutput,
  'Header1        Header2\nRow1           Row2',
  'formatColumns should format multiple rows of column layouts'
);

console.log('Contract tests passed successfully.');
process.exit(0);

Origin Seeder

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