CodeSampleX

Sample

@babel/plugin-transform-modules-amd 7.29.7

Verified sample for npm @babel/plugin-transform-modules-amd 7.29.7. The contract ran on node 22 · linux alpine/x64 · docker and passed.

sha256:ba253ba420280c872265e909f7f6af0db01e9a38a74f4f39840544b2eadbb5b4

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/%40babel/plugin-transform-modules-amd@7.29.7
Packages
Environment
node 22.23.2
Created
2026-08-23T18:19:43Z

Contract

  1. plugin exports a default Babel plugin declaration function
  2. plugin default factory returns a plugin object with name transform-modules-amd and pre/visitor properties
  3. plugin transforms ES module named and default exports into AMD define wrapper with _exports object
  4. plugin transforms ES module imports and re-exports into AMD dependency list and interop helpers
  5. plugin supports custom moduleId option to emit named AMD define call
  6. plugin supports noInterop option to bypass default export interop wrapper
  7. transformed AMD module executes correctly in an AMD loader runtime environment

Files

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

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/%40babel/plugin-transform-modules-amd@7.29.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/plugin-transform-modules-amd@7.29.7
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:sha256:1cce4cef999d58d8af1623e71efcb7a7002d6d65ffa167985b654601fed126fa","constraints":{"executionContext":"node"},"contract":["plugin exports a default Babel plugin declaration function","plugin default factory returns a plugin object with name transform-modules-amd and pre/visitor properties","plugin transforms ES module named and default exports into AMD define wrapper with _exports object","plugin transforms ES module imports and re-exports into AMD dependency list and interop helpers","plugin supports custom moduleId option to emit named AMD define call","plugin supports noInterop option to bypass default export interop wrapper","transformed AMD module executes correctly in an AMD loader runtime environment"],"goal":"verify pkg:npm/%40babel/plugin-transform-modules-amd@7.29.7","kind":"HOW","packages":["pkg:npm/%40babel/plugin-transform-modules-amd@7.29.7"],"schemaVersion":1},"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/%40babel/plugin-transform-modules-amd@7.29.7"],"schemaVersion":1,"subject":"pkg:npm/%40babel/plugin-transform-modules-amd@7.29.7","verifierAdapter":"node-typescript@1"}
index.js
import * as babel from '@babel/core';
import transformModulesAmdPlugin from '@babel/plugin-transform-modules-amd';

/**
 * Transform ES module code to AMD define format using @babel/plugin-transform-modules-amd
 * @param {string} code - ES module source code
 * @param {object} [options={}] - Plugin options (e.g. moduleId, noInterop)
 * @returns {string} - Transformed AMD code
 */
export function transformToAmd(code, options = {}) {
  const plugin = transformModulesAmdPlugin.default || transformModulesAmdPlugin;
  const result = babel.transformSync(code, {
    plugins: [[plugin, options]],
    configFile: false,
    babelrc: false
  });
  return result ? result.code : '';
}

export default transformToAmd;
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package.json
{
  "name": "sample-babel-plugin-transform-modules-amd",
  "version": "1.0.0",
  "description": "Verify @babel/plugin-transform-modules-amd for ES module to AMD transformation",
  "main": "index.js",
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "license": "MIT-0",
  "dependencies": {
    "@babel/core": "7.26.10",
    "@babel/plugin-transform-modules-amd": "7.29.7"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40babel/plugin-transform-modules-amd@7.29.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/plugin-transform-modules-amd@7.29.7"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
test/contract.mjs
import assert from 'node:assert/strict';
import * as babel from '@babel/core';
import rawPlugin from '@babel/plugin-transform-modules-amd';
import { transformToAmd } from '../index.js';

// 1. plugin exports a default Babel plugin declaration function
const plugin = rawPlugin.default || rawPlugin;
assert.equal(typeof plugin, 'function', 'plugin must export a function');

// 2. plugin default factory returns a plugin object with name transform-modules-amd and pre/visitor properties
const mockApi = {
  assertVersion: () => true,
  assumption: () => false,
  traverse: babel.traverse,
  types: babel.types,
  template: babel.template
};
const pluginObj = plugin(mockApi, {});
assert.equal(typeof pluginObj, 'object', 'plugin factory must return an object');
assert.equal(pluginObj.name, 'transform-modules-amd', 'plugin name must be transform-modules-amd');
assert.equal(typeof pluginObj.pre, 'function', 'plugin must define pre hook');
assert.ok(pluginObj.visitor && pluginObj.visitor.Program, 'plugin must declare Program visitor');

// Helper to execute AMD code in a minimal runtime environment
function runAmd(code, deps = {}) {
  let exported = {};
  let definedId = null;
  let definedDeps = [];
  function define(...args) {
    let factory = args[args.length - 1];
    let idx = 0;
    if (typeof args[0] === 'string') {
      definedId = args[0];
      idx = 1;
    }
    if (Array.isArray(args[idx])) {
      definedDeps = args[idx];
    }
    const resolved = definedDeps.map(depName => {
      if (depName === 'exports') return exported;
      if (depName === 'require') return (reqName) => deps[reqName];
      return deps[depName];
    });
    const res = factory(...resolved);
    if (res !== undefined) {
      exported = res;
    }
  }
  const fn = new Function('define', code);
  fn(define);
  return { exported, id: definedId, deps: definedDeps };
}

// 3. plugin transforms ES module named and default exports into AMD define wrapper with _exports object
const codeExports = 'export const answer = 42; export default function square(n) { return n * n; }';
const resExports = transformToAmd(codeExports);
assert.ok(resExports.includes('define(["exports"],'), 'must produce define with exports dependency');
assert.ok(resExports.includes('_exports.answer = 42'), 'must assign named export to _exports.answer');
assert.ok(resExports.includes('_exports.default = square'), 'must assign default export to _exports.default');

// 4. plugin transforms ES module imports and re-exports into AMD dependency list and interop helpers
const codeImports = 'import dep from "my-dep"; export const val = dep;';
const resImports = transformToAmd(codeImports);
assert.ok(resImports.includes('define(["exports", "my-dep"],'), 'must list my-dep in AMD dependencies');
assert.ok(resImports.includes('_interopRequireDefault'), 'must include interop helper for default import');

const codeReexport = 'export { helper } from "external-dep";';
const resReexport = transformToAmd(codeReexport);
assert.ok(resReexport.includes('define(["exports", "external-dep"],'), 'must list external-dep in AMD dependencies');
assert.ok(resReexport.includes('_externalDep.helper'), 'must forward re-exported symbol');

// 5. plugin supports custom moduleId option to emit named AMD define call
const codeModuleId = 'export const val = 100;';
const resModuleId = transformToAmd(codeModuleId, { moduleId: 'my-custom-module' });
assert.ok(resModuleId.includes('define("my-custom-module", ["exports"],'), 'must emit named define with moduleId');

// 6. plugin supports noInterop option to bypass default export interop wrapper
const codeNoInterop = 'import dep from "dep"; export const val = dep;';
const resNoInterop = transformToAmd(codeNoInterop, { noInterop: true });
assert.ok(!resNoInterop.includes('_interopRequireDefault'), 'must not emit _interopRequireDefault when noInterop is true');
assert.ok(resNoInterop.includes('_exports.val = _dep.default'), 'must access .default directly on dependency');

// 7. transformed AMD module executes correctly in an AMD loader runtime environment
const mathModuleCode = 'import { multiplier } from "config"; export const result = 21 * multiplier; export function compute(x) { return x * multiplier; }';
const mathTransformed = transformToAmd(mathModuleCode);
const runtime = runAmd(mathTransformed, {
  config: { multiplier: 2 }
});
assert.equal(runtime.exported.result, 42, 'evaluated runtime exported result must equal 42');
assert.equal(runtime.exported.compute(10), 20, 'evaluated runtime function compute(10) must equal 20');

console.log('All contract tests passed successfully.');

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