Sample
verify @modelcontextprotocol/sdk.StdioServerTransport in pkg:npm/%40modelcontextprotocol/sdk@1.30.0
sha256:61846f350f8bf7b67741d78dd0fe20276b8258f46939771509e4e78f773d1d1c
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… |
2026-08-27 |
Case
HOW- Goal
- verify @modelcontextprotocol/sdk.StdioServerTransport in pkg:npm/%40modelcontextprotocol/sdk@1.30.0
- Packages
- Symbols
-
- @modelcontextprotocol/sdk.StdioServerTransport
- Environment
- node 22.23.2
- Created
- 2026-08-27T22:01:26Z
Contract
- StdioServerTransport exports a transport class implementing the MCP Transport interface over Node.js streams
- StdioServerTransport constructor accepts custom stdin and stdout streams with optional buffer limits
- StdioServerTransport start begins listening on stdin and rejects subsequent start invocations
- StdioServerTransport send serializes JSON-RPC messages with newline delimiters to stdout
- StdioServerTransport parses incoming newline-delimited JSON-RPC messages from stdin and invokes onmessage
- StdioServerTransport close removes stream listeners, clears internal read buffer, and invokes onclose
- StdioServerTransport onerror triggers on input exceeding maxBufferSize or malformed JSON payloads
- MCP Server connects to StdioServerTransport and processes JSON-RPC initialize requests
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- src/index.js
- test/contract.mjs
Origin Seeder
anonymous