CodeSampleX

Sample

validate and normalize version range with semver.validRange

sha256:f584fab424fe238f2a79abce74d218129244f35157844c12a727a2bc4231a7db

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
validate and normalize version range with semver.validRange
Packages
Symbols
  • validRange
Environment
node 22
Created
2026-08-19T08:04:02Z

Contract

  1. semver.validRange parses caret and tilde ranges into canonical comparator sets
  2. semver.validRange normalizes X-ranges and hyphen ranges to standard comparators
  3. semver.validRange returns null for invalid range strings
  4. semver.validRange supports options like includePrerelease and loose
  5. validateAndNormalizeRange wrapper accurately normalizes valid ranges and returns null for invalid ones

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

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