CodeSampleX

Sample

semver 7.8.5: check if a range is a subset of another with semver.subset

Verified sample for npm semver 7.8.5: check if a range is a subset of another with semver.subset. The contract ran on node 22 · linux alpine/x64 · docker and…

sha256:7cae67afe07d8d644ad6c09f76ce479600993a6c5eca135396ca4972c3f23dc2

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 windows 11 x64 npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-19

Case

HOW
Goal
check if a range is a subset of another with semver.subset
Packages
Symbols
  • subset
Created
2026-08-18T22:53:32Z

Contract

  1. subset returns true when sub range is completely contained within super range
  2. subset returns false when sub range extends outside super range
  3. subset handles exact version strings as sub ranges
  4. subset evaluates comparator unions and logical OR ranges
  5. subset evaluates unbounded range subsets correctly
  6. subset supports includePrerelease option for prerelease ranges

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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