@tailwindcss/oxide-linux-x64-gnu 4.3.3

force = true

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/%40tailwindcss/oxide-linux-x64-gnu@4.3.3
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40tailwindcss/oxide-linux-x64-gnu@4.3.3

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:sha256:36a503e169f57ab7f605089c17cbafc7b787011e20873cc903fad98ded3716e2","contract":["assert package resolution resolves @tailwindcss/oxide-linux-x64-gnu to tailwindcss-oxide.linux-x64-gnu.node","assert package manifest specifies os linux, cpu x64, libc glibc, and node \u003e= 20","assert binary header contains 64-bit little-endian ELF magic and EM_X86_64 architecture code 62","assert module exports Scanner class","assert Scanner scanFiles extracts utility candidate tokens from source content","assert Scanner getCandidatesWithPositions returns candidate tokens with byte offsets"],"goal":"verify pkg:npm/%40tailwindcss/oxide-linux-x64-gnu@4.3.3","kind":"HOW","packages":["pkg:npm/%40tailwindcss/oxide-linux-x64-gnu@4.3.3"],"schemaVersion":1},"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","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40tailwindcss/oxide-linux-x64-gnu@4.3.3"],"schemaVersion":1,"subject":"pkg:npm/%40tailwindcss/oxide-linux-x64-gnu@4.3.3","verifierAdapter":"node-typescript@1"}

{
  "name": "sample-oxide-linux-x64-gnu",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-oxide-linux-x64-gnu",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@tailwindcss/oxide-linux-x64-gnu": "4.3.3"
      }
    },
    "node_modules/@tailwindcss/oxide-linux-x64-gnu": {
      "version": "4.3.3",
      "resolved": "https://registry.npmjs.org/@tailwindcss/oxide-linux-x64-gnu/-/oxide-linux-x64-gnu-4.3.3.tgz",
      "integrity": "sha512-tx7us1muwOKAKWao2v/GaafFeQboE6aj88vC6ziN2NCGcRm8gWUhwjzg+YdVB1e4boAtdtma4L43onunI6NS4w==",
      "cpu": [
        "x64"
      ],
      "license": "MIT",
      "os": [
        "linux"
      ],
      "engines": {
        "node": ">= 20"
      }
    }
  }
}

{
  "name": "sample-oxide-linux-x64-gnu",
  "version": "1.0.0",
  "private": true,
  "license": "MIT-0",
  "dependencies": {
    "@tailwindcss/oxide-linux-x64-gnu": "4.3.3"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40tailwindcss/oxide-linux-x64-gnu@4.3.3",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40tailwindcss/oxide-linux-x64-gnu@4.3.3"
  ]
}

const assert = require("node:assert");
const fs = require("node:fs");
const path = require("node:path");

// 1. Assert package resolution resolves @tailwindcss/oxide-linux-x64-gnu to tailwindcss-oxide.linux-x64-gnu.node
const resolved = require.resolve("@tailwindcss/oxide-linux-x64-gnu");
assert(
  resolved.endsWith("tailwindcss-oxide.linux-x64-gnu.node"),
  "package main resolves to tailwindcss-oxide.linux-x64-gnu.node"
);

// 2. Assert package manifest specifies os linux, cpu x64, libc glibc, and node >= 20
const pkgDir = path.dirname(resolved);
const pkgJson = JSON.parse(
  fs.readFileSync(path.join(pkgDir, "package.json"), "utf8")
);
assert.strictEqual(pkgJson.name, "@tailwindcss/oxide-linux-x64-gnu");
assert.strictEqual(pkgJson.version, "4.3.3");
assert.deepStrictEqual(pkgJson.os, ["linux"]);
assert.deepStrictEqual(pkgJson.cpu, ["x64"]);
assert.deepStrictEqual(pkgJson.libc, ["glibc"]);
assert.strictEqual(pkgJson.main, "tailwindcss-oxide.linux-x64-gnu.node");
assert.strictEqual(pkgJson.engines.node, ">= 20");

// 3. Assert binary header contains 64-bit little-endian ELF magic and EM_X86_64 architecture code 62
const fd = fs.openSync(resolved, "r");
const header = Buffer.alloc(20);
fs.readSync(fd, header, 0, 20, 0);
fs.closeSync(fd);

// ELF Magic: 0x7f, "E", "L", "F"
assert.strictEqual(header[0], 0x7f, "ELF magic byte 0");
assert.strictEqual(header[1], 0x45, "ELF magic byte 1 ('E')");
assert.strictEqual(header[2], 0x4c, "ELF magic byte 2 ('L')");
assert.strictEqual(header[3], 0x46, "ELF magic byte 3 ('F')");

// ELF Class: 2 = 64-bit
assert.strictEqual(header[4], 2, "ELF class is 64-bit (ELFCLASS64)");

// ELF Data: 1 = Little-endian
assert.strictEqual(header[5], 1, "ELF data encoding is 2's complement, little endian");

// ELF Machine: 62 = EM_X86_64
const eMachine = header.readUInt16LE(18);
assert.strictEqual(eMachine, 62, "ELF machine is EM_X86_64");

// 4. Assert module exports Scanner class
const { Scanner } = require("@tailwindcss/oxide-linux-x64-gnu");
assert.strictEqual(typeof Scanner, "function", "Scanner is exported as a class / constructor");

// 5. Assert Scanner scanFiles extracts utility candidate tokens from source content
const scanner = new Scanner({ sources: [] });
const candidates = scanner.scanFiles([
  {
    content: '<button class="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded"></button>',
    extension: "html",
  },
]);
assert(Array.isArray(candidates), "candidates is an array");
assert(candidates.includes("bg-blue-500"), "contains bg-blue-500");
assert(candidates.includes("hover:bg-blue-700"), "contains hover:bg-blue-700");
assert(candidates.includes("text-white"), "contains text-white");
assert(candidates.includes("font-bold"), "contains font-bold");
assert(candidates.includes("py-2"), "contains py-2");
assert(candidates.includes("px-4"), "contains px-4");
assert(candidates.includes("rounded"), "contains rounded");

// 6. Assert Scanner getCandidatesWithPositions returns candidate tokens with byte offsets
const positions = scanner.getCandidatesWithPositions({
  content: '<div class="flex items-center"></div>',
  extension: "html",
});
assert(Array.isArray(positions), "positions is an array");
const flexItem = positions.find((p) => p.candidate === "flex");
assert(flexItem !== undefined, "found candidate flex with position");
assert.strictEqual(typeof flexItem.position, "number", "position is a number");