CodeSampleX

Sample

proxy-from-env 1.1.0

Verified sample for npm proxy-from-env 1.1.0. The contract ran on node 22 · linux alpine/x64 · docker and passed: assert getProxyForUrl returns proxy url…

sha256:20fca09b299083a2fa9781654699a2604afd649c73b5824b987fb97f8fe91d7e

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

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@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/proxy-from-env@1.1.0
Packages
Environment
node 22.23.2
Created
2026-08-20T20:32:58Z

Contract

  1. assert getProxyForUrl returns proxy url matching protocol from environment variables
  2. assert getProxyForUrl prepends protocol scheme if proxy address lacks scheme
  3. assert getProxyForUrl returns empty string when no proxy environment variables are set
  4. assert getProxyForUrl respects NO_PROXY exact domain and wildcard matching
  5. assert getProxyForUrl respects NO_PROXY domain suffix matching with leading dot or asterisk
  6. assert getProxyForUrl respects NO_PROXY specific port filtering
  7. assert getProxyForUrl returns empty string for invalid or missing URL inputs

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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