CodeSampleX

Sample

clean version strings with semver.clean

sha256:48b51acb8bed2273317427ac95901c89044782557fcdd7a80af0a3114cb625f8

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 10

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
clean version strings with semver.clean
Packages
Symbols
  • semver.clean
Environment
node 22
Created
2026-08-19T02:53:16Z

Contract

  1. clean strips whitespace and leading v or = characters from version strings
  2. clean preserves valid prerelease tags on version strings
  3. clean returns null for range expressions and invalid semver strings
  4. clean supports loose parsing option for loose version formats
  5. clean returns null for empty or whitespace-only strings

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