CodeSampleX

Sample

verify createPacResolver in pkg:npm/pac-resolver@7.0.1

sha256:0f36fe5d382eb07c2cd9c891fd67e670b130e51dec189ecde85daedc7857c824

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 createPacResolver in pkg:npm/pac-resolver@7.0.1
Packages
Symbols
  • createPacResolver
Created
2026-08-23T17:44:03Z

Contract

  1. createPacResolver generates an asynchronous FindProxyForURL function from a PAC script string using QuickJS
  2. FindProxyForURL resolves proxies using standard PAC functions including isPlainHostName, dnsDomainIs, and shExpMatch
  3. createPacResolver accepts a PAC script supplied as a Node.js Buffer
  4. createPacResolver accepts custom sandbox functions in options
  5. FindProxyForURL accepts both URL strings and WHATWG URL instances with optional host override
  6. 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

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