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@anthropic-ai/mcpb 2.1.2: checkManifest, bundleExtension, extractExtension

검증된 샘플 — npm @anthropic-ai/mcpb 2.1.2: checkManifest, bundleExtension, extractExtension. node 22 · linux debian/x64 · docker에서 contract를 실행해 통과했습니다.

sha256:5bd2d9858d1472c09e5af35abbd80c99700b26ea555d5576062289176942e4e9

이 네트워크가 제공하는 것은 하나입니다. 빌드되는 샘플. 샌드박스에서 돌리고 서명된 영수증을 보관합니다. 등급을 매기지 않고 무엇도 보증하지 않습니다 — 같은 코드가 당신 환경에서 빌드되는지는 측정한 적이 없습니다. 통과한 계약 영수증을 낸 서로 다른 서명 키의 수입니다. 하나면 작성자 혼자이고, 둘 이상이면 다른 사람도 빌드했다는 뜻입니다. 키는 스스로 만드는 것이고 뒤에 등록된 신원이 없으므로, 세는 것은 사람이 아니라 키입니다. MIT-0

실행 증거

선언된 환경과 서명된 실행을 분리해 두었습니다. 이 샘플이 무엇을 어디서 실행했는지 그대로 볼 수 있습니다.

증거 기준
서명된 컨트랙트 통과
검증 영수증
1
빌드한 서명 키
1
선언된 환경 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

검증 실행 환경

환경 컨트랙트 단계 실행일
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-09-14

케이스

HOW
목표
verify pkg:npm/%40anthropic-ai/mcpb@2.1.2
패키지
심벌
  • checkManifest
  • bundleExtension
  • extractExtension
  • validateManifest
  • packExtension
  • unpackExtension
  • MANIFEST_SCHEMAS
환경
node 22.23.2
생성일
2026-09-14T23:44:17Z

컨트랙트

  1. assert MANIFEST_SCHEMAS contains schemas for supported manifest versions
  2. assert validateManifest validates valid manifest structure and rejects invalid manifests
  3. assert packExtension packages an extension directory into an mcpb archive
  4. assert unpackExtension extracts an mcpb archive into target directory

파일

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

소스 아티팩트 내려받기 (tar.gz)

소스

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/%40anthropic-ai/mcpb@2.1.2
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40anthropic-ai/mcpb@2.1.2

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:sha256:028f1f4091bd0053c2fea9ed8bf51cd0eb03544155fde1cbb93cd6a61dfc1508","contract":["assert MANIFEST_SCHEMAS contains schemas for supported manifest versions","assert validateManifest validates valid manifest structure and rejects invalid manifests","assert packExtension packages an extension directory into an mcpb archive","assert unpackExtension extracts an mcpb archive into target directory"],"goal":"verify pkg:npm/%40anthropic-ai/mcpb@2.1.2","kind":"HOW","packages":["pkg:npm/%40anthropic-ai/mcpb@2.1.2"],"schemaVersion":1,"symbols":["checkManifest","bundleExtension","extractExtension","validateManifest","packExtension","unpackExtension","MANIFEST_SCHEMAS"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40anthropic-ai/mcpb@2.1.2"],"schemaVersion":1,"subject":"pkg:npm/%40anthropic-ai/mcpb@2.1.2","symbols":["checkManifest","bundleExtension","extractExtension","validateManifest","packExtension","unpackExtension","MANIFEST_SCHEMAS"],"verifierAdapter":"node-typescript@1"}
index.js
import {
  validateManifest,
  packExtension,
  unpackExtension,
  MANIFEST_SCHEMAS,
  VERSIONED_MANIFEST_SCHEMAS
} from '@anthropic-ai/mcpb';

/**
 * Validates whether an MCP extension manifest conforms to the schema specification.
 *
 * @param {string} manifestPath - File path to manifest.json or directory containing manifest.json
 * @returns {boolean} True if the manifest is valid, false otherwise
 */
export function checkManifest(manifestPath) {
  return validateManifest(manifestPath);
}

/**
 * Packages an extension directory into a .mcpb bundle archive.
 *
 * @param {string} extensionPath - Path to the directory containing extension files and manifest
 * @param {string} outputPath - Target path for the output .mcpb archive file
 * @param {boolean} [silent=true] - Whether to suppress console output
 * @returns {Promise<boolean>} True if packing succeeded
 */
export async function bundleExtension(extensionPath, outputPath, silent = true) {
  return packExtension({ extensionPath, outputPath, silent });
}

/**
 * Extracts an .mcpb bundle archive into a target directory.
 *
 * @param {string} mcpbPath - Path to the .mcpb archive file
 * @param {string} outputDir - Directory to unpack files into
 * @param {boolean} [silent=true] - Whether to suppress console output
 * @returns {Promise<boolean>} True if unpacking succeeded
 */
export async function extractExtension(mcpbPath, outputDir, silent = true) {
  return unpackExtension({ mcpbPath, outputDir, silent });
}

export {
  validateManifest,
  packExtension,
  unpackExtension,
  MANIFEST_SCHEMAS,
  VERSIONED_MANIFEST_SCHEMAS
};
package-lock.json
{
  "name": "sample-mcpb",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-mcpb",
      "version": "1.0.0",
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      "dependencies": {
        "@anthropic-ai/mcpb": "2.1.2"
      }
    },
    "node_modules/@anthropic-ai/mcpb": {
      "version": "2.1.2",
      "resolved": "https://registry.npmjs.org/@anthropic-ai/mcpb/-/mcpb-2.1.2.tgz",
      "integrity": "sha512-goRbBC8ySo7SWb7tRzr+tL6FxDc4JPTRCdgfD2omba7freofvjq5rom1lBnYHZHo6Mizs1jAHJeN53aZbDoy8A==",
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        "node-forge": "^1.3.2",
        "pretty-bytes": "^5.6.0",
        "zod": "^3.25.67",
        "zod-to-json-schema": "^3.24.6"
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      "bin": {
        "mcpb": "dist/cli/cli.js"
      }
    },
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}
package.json
{
  "name": "sample-mcpb",
  "version": "1.0.0",
  "description": "Clean-room sample verifying pkg:npm/@anthropic-ai/mcpb@2.1.2 functionality",
  "type": "module",
  "main": "index.js",
  "license": "MIT-0",
  "dependencies": {
    "@anthropic-ai/mcpb": "2.1.2"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40anthropic-ai/mcpb@2.1.2",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40anthropic-ai/mcpb@2.1.2"
  ]
}
test/contract.mjs
import assert from 'node:assert';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
import {
  checkManifest,
  bundleExtension,
  extractExtension,
  validateManifest,
  packExtension,
  unpackExtension,
  MANIFEST_SCHEMAS,
  VERSIONED_MANIFEST_SCHEMAS
} from '../index.js';

// 1. MANIFEST_SCHEMAS and VERSIONED_MANIFEST_SCHEMAS provide versioned schemas
assert(typeof MANIFEST_SCHEMAS === 'object' && MANIFEST_SCHEMAS !== null, 'MANIFEST_SCHEMAS must be an object');
assert(MANIFEST_SCHEMAS['0.1'] !== undefined, 'MANIFEST_SCHEMAS must define schema for 0.1');
assert(MANIFEST_SCHEMAS['0.2'] !== undefined, 'MANIFEST_SCHEMAS must define schema for 0.2');
assert(MANIFEST_SCHEMAS['0.3'] !== undefined, 'MANIFEST_SCHEMAS must define schema for 0.3');
assert(MANIFEST_SCHEMAS['0.4'] !== undefined, 'MANIFEST_SCHEMAS must define schema for 0.4');
assert(typeof VERSIONED_MANIFEST_SCHEMAS === 'object' && VERSIONED_MANIFEST_SCHEMAS !== null, 'VERSIONED_MANIFEST_SCHEMAS must be an object');
assert(VERSIONED_MANIFEST_SCHEMAS['0.2'] !== undefined, 'VERSIONED_MANIFEST_SCHEMAS must define schema for 0.2');

// 2. validateManifest verifies valid manifest structure and rejects invalid manifests
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'contract-mcpb-'));

try {
  const manifestDir = path.join(tempDir, 'manifest-test');
  fs.mkdirSync(manifestDir);

  const validManifest = {
    manifest_version: '0.2',
    name: 'sample-server',
    version: '1.0.0',
    description: 'Sample MCP server for testing',
    author: {
      name: 'Sample Author'
    },
    server: {
      type: 'node',
      entry_point: 'index.js',
      mcp_config: {
        command: 'node',
        args: ['index.js']
      }
    }
  };

  const validManifestPath = path.join(manifestDir, 'manifest.json');
  fs.writeFileSync(validManifestPath, JSON.stringify(validManifest, null, 2));

  const validResult = checkManifest(validManifestPath);
  assert.strictEqual(validResult, true, 'checkManifest should return true for a valid manifest file');

  const validDirResult = validateManifest(manifestDir);
  assert.strictEqual(validDirResult, true, 'validateManifest should accept directory containing manifest.json');

  const invalidManifestPath = path.join(manifestDir, 'invalid-manifest.json');
  fs.writeFileSync(invalidManifestPath, JSON.stringify({ name: 'incomplete' }, null, 2));

  const invalidResult = checkManifest(invalidManifestPath);
  assert.strictEqual(invalidResult, false, 'checkManifest should return false for an invalid manifest');

  // 3. packExtension packages an extension directory into a .mcpb bundle
  const extensionDir = path.join(tempDir, 'extension-source');
  fs.mkdirSync(extensionDir);

  const extManifest = {
    manifest_version: '0.2',
    name: 'sample-pack-extension',
    version: '1.0.0',
    description: 'Sample pack extension',
    author: {
      name: 'Sample Author'
    },
    server: {
      type: 'node',
      entry_point: 'server.js',
      mcp_config: {
        command: 'node',
        args: ['server.js']
      }
    }
  };

  fs.writeFileSync(path.join(extensionDir, 'manifest.json'), JSON.stringify(extManifest, null, 2));
  fs.writeFileSync(path.join(extensionDir, 'server.js'), 'console.log("ready");');

  const bundlePath = path.join(tempDir, 'sample-extension.mcpb');
  const packResult = await bundleExtension(extensionDir, bundlePath, true);
  assert.strictEqual(packResult, true, 'bundleExtension should return true on successful packaging');
  assert.strictEqual(fs.existsSync(bundlePath), true, 'Bundle file should be generated');

  // 4. unpackExtension extracts an .mcpb bundle archive into a target directory
  const unpackTargetDir = path.join(tempDir, 'unpacked-output');
  const unpackResult = await extractExtension(bundlePath, unpackTargetDir, true);
  assert.strictEqual(unpackResult, true, 'extractExtension should return true on successful extraction');

  const unpackedManifestPath = path.join(unpackTargetDir, 'manifest.json');
  const unpackedServerPath = path.join(unpackTargetDir, 'server.js');
  assert.strictEqual(fs.existsSync(unpackedManifestPath), true, 'Unpacked manifest.json should exist');
  assert.strictEqual(fs.existsSync(unpackedServerPath), true, 'Unpacked server.js should exist');

  const unpackedManifestContent = JSON.parse(fs.readFileSync(unpackedManifestPath, 'utf8'));
  assert.strictEqual(unpackedManifestContent.name, 'sample-pack-extension', 'Unpacked manifest name should match');
  assert.strictEqual(fs.readFileSync(unpackedServerPath, 'utf8'), 'console.log("ready");', 'Unpacked server.js content should match');

  console.log('All contract assertions passed successfully.');
} finally {
  fs.rmSync(tempDir, { recursive: true, force: true });
}

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