CodeSampleX

Sample

verify pkg:npm/%40babel/helper-validator-option@8.0.0

sha256:f7d3404fe338c257da5bc8e66983b3e991c7a20ef4ed465436ca6ef0757c8a88

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 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-20

Case

HOW
Goal
verify pkg:npm/%40babel/helper-validator-option@8.0.0
Packages
Environment
node 22.23.2
Created
2026-08-20T21:21:56Z

Contract

  1. OptionValidator constructor initializes descriptor and formatMessage prefixes error messages with descriptor
  2. validateTopLevelOptions validates allowed options against TopLevelOptionShape and throws formatted error with suggestion for invalid keys
  3. validateBooleanOption returns given boolean value, returns defaultValue when undefined, and throws when value is not a boolean
  4. validateStringOption returns given string value, returns defaultValue when undefined, and throws when value is not a string
  5. invariant throws formatted error when condition is falsy and passes when truthy
  6. findSuggestion finds the candidate string with minimal Levenshtein distance

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous