CodeSampleX

Sample

verify pkg:npm/semver@7.8.5

sha256:0ea3f31f6472d63b48e623ce93f3d1ed1b5795b98fc278ff7e4f180b0e73fe43

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node windows 11 x64 node javascript 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
verify pkg:npm/semver@7.8.5
Packages
Symbols
  • semver.subset
Environment
node
Created
2026-08-19T06:08:55Z

Contract

  1. subset returns true when a narrower version range is completely contained within a broader range
  2. subset returns false when the sub range extends beyond the dom range
  3. subset correctly handles bounded comparator ranges
  4. subset respects the 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

anonymous