CodeSampleX

Sample

verify pkg:npm/pac-resolver@7.0.1

sha256:16bd16fc9371912014e949ccbe10b1313f532e0a9c4e72e6a898a63cbcf08003

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/pac-resolver@7.0.1
Packages
Created
2026-08-23T15:31:13Z

Contract

  1. createPacResolver generates an asynchronous FindProxyForURL function from PAC script string or Buffer
  2. FindProxyForURL resolves proxies using built-in sandbox helpers including isPlainHostName, dnsDomainIs, shExpMatch, and isInNet
  3. createPacResolver accepts custom sandbox functions passed in options
  4. FindProxyForURL accepts both URL strings and WHATWG URL instances with optional host override
  5. FindProxyForURL rejects with TypeError when host cannot be determined

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous