CodeSampleX

Sample

verify pkg:npm/semver@7.8.5

sha256:7f1d354cccac9afec1174e9d0fd9b2b589aed3656ce7dde42a2b764996c8e0a1

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 linux 24 · ubuntu · glibc 2.39 x64 npm wsl

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
  • clean
  • coerce
  • diff
  • inc
  • minVersion
  • satisfies
  • valid
Created
2026-08-19T09:01:10Z

Contract

  1. assert semver.valid validates semantic version strings and returns normalized versions or null for invalid input
  2. assert semver.clean strips whitespace and version prefix characters from version strings
  3. assert semver.inc increments major, minor, patch, and prerelease version components according to release type
  4. assert semver.diff identifies the difference category between two semantic version strings or returns null for equal versions
  5. assert semver.coerce extracts and coerces valid SemVer versions from unformatted strings or returns null
  6. assert semver.minVersion determines the minimum valid version that satisfies a range expression
  7. assert semver.satisfies evaluates whether version numbers satisfy caret, tilde, and comparison range expressions with prerelease options

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous