Sample
verify @modelcontextprotocol/sdk.StreamableHTTPServerTransport in pkg:npm/%40modelcontextprotocol/sdk@1.30.0
sha256:b1ff3e0d46f58b358f3fe39f52adc960d0bb0e3fc2b16a3e5575072cce90bb80
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.StreamableHTTPServerTransport in pkg:npm/%40modelcontextprotocol/sdk@1.30.0
- Packages
- Symbols
-
- @modelcontextprotocol/sdk.StreamableHTTPServerTransport
- Environment
- node 22.23.2
- Created
- 2026-08-28T05:44:40Z
Contract
- assert stateless StreamableHTTPServerTransport instantiates with undefined sessionId and emits onclose on close
- assert stateless StreamableHTTPServerTransport processes incoming JSON-RPC POST requests and dispatches onmessage
- assert StreamableHTTPServerTransport sends JSON-RPC responses over Node.js HTTP server connection with HTTP 200
- assert StreamableHTTPServerTransport handleRequest accepts pre-parsed body objects directly bypassing raw body streaming
- assert POST requests missing text/event-stream in Accept header reject with HTTP 406 Not Acceptable
- assert POST requests with non-JSON Content-Type reject with HTTP 415 Unsupported Media Type
- assert unsupported HTTP methods reject with HTTP 405 Method Not Allowed
- assert stateful StreamableHTTPServerTransport generates sessionId on initialize request and sets mcp-session-id header
- assert stateful StreamableHTTPServerTransport rejects subsequent requests without Mcp-Session-Id header with HTTP 400 Bad Request
- assert stateful StreamableHTTPServerTransport rejects requests with mismatched Mcp-Session-Id header with HTTP 404 Not Found
- assert stateful StreamableHTTPServerTransport accepts subsequent requests matching session id with HTTP 200
- assert DELETE request with valid session id terminates stateful session with HTTP 200
- assert GET request for SSE stream requires Accept text/event-stream rejecting with HTTP 406 when missing and returning HTTP 200 with text/event-stream
Files
- NOTES.md
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous