CodeSampleX

Sample

verify @babel/helper-validator-identifier.isReservedWord in pkg:npm/%40babel/helper-validator-identifier@8.0.4

sha256:dd1af10a4aacd8c34c91e3cb4174eefa190b26fa8dd522aefca93671893e8666

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 @babel/helper-validator-identifier.isReservedWord in pkg:npm/%40babel/helper-validator-identifier@8.0.4
Packages
Symbols
  • @babel/helper-validator-identifier.isReservedWord
Environment
node 22.23.2
Created
2026-08-20T21:13:29Z

Contract

  1. isReservedWord returns true for enum regardless of whether inModule is true or false
  2. isReservedWord returns true for await when inModule is true
  3. isReservedWord returns false for await when inModule is false or omitted
  4. isReservedWord returns false for regular identifier names and standard keywords when checking reserved word status
  5. isReservedWord returns false for uppercase or mixed-case variants of enum and await

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