CodeSampleX

Sample

verify @modelcontextprotocol/sdk.SUPPORTED_PROTOCOL_VERSIONS in pkg:npm/%40modelcontextprotocol/sdk@1.30.0

sha256:168366836f977357a39a47f59ce0cd49c3dcdb351edb9c70c06e628cb25918e2

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…
2026-08-28

Case

HOW
Goal
verify @modelcontextprotocol/sdk.SUPPORTED_PROTOCOL_VERSIONS in pkg:npm/%40modelcontextprotocol/sdk@1.30.0
Packages
Symbols
  • @modelcontextprotocol/sdk.SUPPORTED_PROTOCOL_VERSIONS
Environment
node 22.23.2
Created
2026-08-28T05:35:07Z

Contract

  1. SUPPORTED_PROTOCOL_VERSIONS is a non-empty array of string protocol versions exported from @modelcontextprotocol/sdk/types.js
  2. SUPPORTED_PROTOCOL_VERSIONS contains latest version 2025-11-25 as its first element and includes historical protocol versions
  3. isSupportedProtocolVersion helper returns true for all elements in SUPPORTED_PROTOCOL_VERSIONS and false for unknown versions
  4. InitializeRequestParamsSchema parses valid initialization options using versions from SUPPORTED_PROTOCOL_VERSIONS
  5. InMemoryTransport connects Client and Server communicating over a supported protocol version

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous