CodeSampleX

Sample

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

sha256:28df8d2809299062bf0f6578e39e7560fa539a4a0fb2e6cf65be6bfd6e1cb21c

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.assertIdentifier in pkg:npm/%40babel/types@7.29.8
Packages
Symbols
  • @babel/types.assertIdentifier
Environment
node 22.23.2
Created
2026-08-23T04:49:09Z

Contract

  1. assertIdentifier succeeds without throwing when provided a valid Identifier AST node
  2. assertIdentifier validates node properties matching expected attributes such as name and throws on property mismatch
  3. assertIdentifier throws an error when called with non-Identifier AST node types
  4. assertIdentifier throws an error when called with null, undefined, or invalid object inputs

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous