CodeSampleX

Sample

verify semver.valid in pkg:npm/semver@5.7.2

sha256:5aeda8e494b53fe4d1e57b379a7cc902e7d08b182fc0c42813052cd40d990941

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…
2026-08-26

Case

HOW
Goal
verify semver.valid in pkg:npm/semver@5.7.2
Packages
Symbols
  • semver.valid
Environment
node 22.23.2
Created
2026-08-26T07:29:12Z

Contract

  1. valid returns normalized version string for standard semantic versions
  2. valid strips leading v prefix
  3. valid preserves prerelease tags while stripping build metadata
  4. valid returns null for invalid version formats or non-version strings
  5. valid supports loose mode to parse loose or prefixed versions

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