CodeSampleX

Sample

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

sha256:a77091722c2c3068f393a5a7bab86a310794e2a61b268c27df6cbea078e58376

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…
2026-08-27

Case

HOW
Goal
verify pac-resolver.createPacResolver in pkg:npm/pac-resolver@7.0.1
Packages
Symbols
  • pac-resolver.createPacResolver
Environment
node 22.23.2
Created
2026-08-27T11:36:01Z

Contract

  1. createPacResolver compiles a PAC script using QuickJS WebAssembly module into an asynchronous FindProxyForURL function
  2. FindProxyForURL evaluates standard PAC helper functions like shExpMatch and dnsDomainIs against requested URL and host
  3. FindProxyForURL accepts string or Buffer PAC definitions and string or URL object parameters
  4. createPacResolver supports custom sandbox functions passed via options.sandbox

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous