CodeSampleX

Sample

verify @babel/types.assertBlockStatement in pkg:npm/%40babel/types@7.29.8

sha256:7a833ccad68058b42e942e990546bd2f6436a2fd3b2957e7382232ae97375d76

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 @babel/types.assertBlockStatement in pkg:npm/%40babel/types@7.29.8
Packages
Symbols
  • @babel/types.assertBlockStatement
Environment
node 22.23.2
Created
2026-08-23T04:47:22Z

Contract

  1. assertBlockStatement succeeds without throwing when passed a valid BlockStatement node
  2. assertBlockStatement succeeds when passed a BlockStatement containing multiple statement nodes
  3. assertBlockStatement throws an Error when passed a non-BlockStatement AST node
  4. assertBlockStatement throws an Error when passed non-node values such as primitive types or null
  5. assertBlockStatement validates BlockStatement nodes within control flow and function constructs
  6. assertBlockStatement supports optional property matching to verify specific node attributes

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous