CodeSampleX

Sample

verify pkg:npm/%40jest/globals@29.7.0

sha256:be45e69db31e6f1db5deb834e6e3b12265a7abdacf3f7939fd0fb2382201886c

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 pkg:npm/%40jest/globals@29.7.0
Packages
Environment
node 22.23.2
Created
2026-08-23T16:22:04Z

Contract

  1. requiring @jest/globals outside Jest runtime throws an error stating it cannot be imported outside the Jest test environment
  2. @jest/globals/package.json exports package metadata and dependencies including @jest/environment, @jest/expect, @jest/types, and jest-mock
  3. loadJestGlobals safely attempts requiring @jest/globals and captures outside-Jest error
  4. isJestEnvironment detects whether running in a Jest test environment
  5. assertOutsideJestError validates that caught errors match canonical Jest environment restriction message

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