CodeSampleX

Sample

verify @babel/core.transformAsync in pkg:npm/%40babel/core@7.24.0

sha256:842c23c0a206c4d73168148c34d4682c13ba06bfe65258611a58b67fa71e6781

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/core.transformAsync in pkg:npm/%40babel/core@7.24.0
Packages
Symbols
  • @babel/core.transformAsync
Environment
node 22.23.2
Created
2026-08-20T17:58:29Z

Contract

  1. transformAsync returns a Promise resolving to a transformed code object with code string
  2. transformAsync applies custom plugin visitors asynchronously to modify AST identifiers
  3. transformAsync generates source maps when sourceMaps option is enabled
  4. transformAsync returns null when filename matches ignore pattern
  5. transformAsync returns AST node when ast option is set to true
  6. transformAsync rejects with a SyntaxError when given invalid JavaScript syntax

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous