CodeSampleX

Sample

verify pkg:npm/puppeteer-core@24.4.0

sha256:324d1beade001aad063805874760963ec2d7c18a6e8eb473168ab5637714a00c

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 linux 24 · ubuntu · glibc 2.39 x64 npm

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/puppeteer-core@24.4.0
Packages
Created
2026-08-23T15:23:47Z

Contract

  1. assert puppeteer._isPuppeteerCore is true
  2. assert puppeteer.launch requires executablePath or channel in puppeteer-core
  3. assert puppeteer.connect requires exactly one connection option
  4. assert puppeteer.launch rejects with descriptive error when executablePath is invalid
  5. assert KnownDevices provides mobile device descriptors including iPhone 15
  6. assert PredefinedNetworkConditions provides network emulation profiles including Slow 3G and Fast 4G
  7. assert puppeteer.defaultArgs generates standard Chromium launch arguments including user flags
  8. assert TimeoutError, PuppeteerError, and ProtocolError are exported Error subclasses

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous