CodeSampleX

Sample

verify pkg:npm/semver@7.8.5

sha256:03290300fc7d32449a611d1e2c4f25fffd5e2554c8d23045771d02deadeb57f3

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 22 windows 11 x64 node 22 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
Environment
node 22
Created
2026-08-19T09:33:05Z

Contract

  1. semver.satisfies validates whether a version satisfies a range expression
  2. semver.valid parses and normalizes valid semver strings and returns null for invalid input
  3. semver.clean trims whitespace and strips leading version prefixes
  4. semver.inc increments version numbers according to semver release types
  5. semver.gt and semver.lt perform semantic version comparisons
  6. semver.coerce extracts semantic versions from loose strings
  7. semver.diff identifies the difference between two version strings

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous