CodeSampleX

Sample

coerce version strings into valid semver using semver.coerce

sha256:11b347b06a305910e90abbb45eb3bacb796c8a6bfe0bc50394b6fbec3bb82564

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 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
coerce version strings into valid semver using semver.coerce
Packages
Symbols
  • coerce
Created
2026-08-18T22:42:35Z

Contract

  1. coerce('v2').version === '2.0.0'
  2. coerce('v1.2').version === '1.2.0'
  3. coerce('42.6.7.9.3').version === '42.6.7'
  4. coerce('not-a-version') === null

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous