std-env 4.2.0: detectProvider, isCI, isNode

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/std-env@4.2.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/std-env@4.2.0
Demonstrate these symbols/APIs:
  - detectProvider
  - isCI
  - isNode
  - platform
  - provider

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.

{"case":{"caseId":"case:sha256:da2c6e30f702427a1f0ec409d47444bfec88ac136572436a7c235b759ad7d47f","contract":["isNode evaluates to true under Node.js","platform reflects process.platform string","provider evaluates to a string and providerInfo contains name and boolean ci","detectProvider returns provider info object with name and ci fields","isCI evaluates to boolean indicating whether running in CI environment"],"goal":"verify pkg:npm/std-env@4.2.0","kind":"HOW","packages":["pkg:npm/std-env@4.2.0"],"schemaVersion":1,"symbols":["detectProvider","isCI","isNode","platform","provider"]},"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/std-env@4.2.0"],"schemaVersion":1,"subject":"pkg:npm/std-env@4.2.0","symbols":["detectProvider","isCI","isNode","platform","provider"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-std-env",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-std-env",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "std-env": "4.2.0"
      }
    },
    "node_modules/std-env": {
      "version": "4.2.0",
      "resolved": "https://registry.npmjs.org/std-env/-/std-env-4.2.0.tgz",
      "integrity": "sha512-oCUKSupKTHX53EyjDtuZQ64pjLJ6yYCtpmEw0goYxtjG9KpbRe8KAsl2tBUGU9DyMcJ0RwJ8GqJAFzMXcXW1Rw==",
      "license": "MIT"
    }
  }
}

{
  "name": "sample-std-env",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "std-env": "4.2.0"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/std-env@4.2.0",
  "kind": "HOW",
  "packages": [
    "pkg:npm/std-env@4.2.0"
  ],
  "symbols": [
    "detectProvider",
    "isCI",
    "isNode",
    "platform",
    "provider"
  ]
}

import assert from 'node:assert/strict';
import {
  isNode,
  platform,
  provider,
  providerInfo,
  detectProvider,
  isCI,
} from 'std-env';

// isNode contract
assert.strictEqual(isNode, true, 'isNode evaluates to true in Node.js');

// platform contract
assert.strictEqual(typeof platform, 'string', 'platform is a string');
assert.strictEqual(platform, process.platform, 'platform reflects process.platform');

// provider contract
assert.strictEqual(typeof provider, 'string', 'provider evaluates to a string');
assert.strictEqual(typeof providerInfo, 'object', 'providerInfo is an object');
assert.strictEqual(providerInfo.name, provider, 'providerInfo.name matches provider');
assert.strictEqual(typeof providerInfo.ci, 'boolean', 'providerInfo.ci is a boolean');

// detectProvider contract
assert.strictEqual(typeof detectProvider, 'function', 'detectProvider is a callable function');
const detected = detectProvider();
assert.strictEqual(typeof detected, 'object', 'detectProvider() returns an object');
assert.strictEqual(typeof detected.name, 'string', 'detectProvider().name is a string');
assert.strictEqual(typeof detected.ci, 'boolean', 'detectProvider().ci is a boolean');

// isCI contract
assert.strictEqual(typeof isCI, 'boolean', 'isCI is a boolean flag');
assert.strictEqual(
  isCI,
  Boolean(process.env.CI) || (detected.ci !== false && detected.name !== ''),
  'isCI matches CI environment detection'
);