CodeSampleX

Sample

verify @babel/core.transformAsync in pkg:npm/%40babel/core@7.29.7

sha256:6964a5a74edbf7ee78626ba534e0f9df996f710791656d48d660164e08064851

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 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@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-23

Case

HOW
Goal
verify @babel/core.transformAsync in pkg:npm/%40babel/core@7.29.7
Packages
Symbols
  • @babel/core.transformAsync
Created
2026-08-23T06:29:02Z

Contract

  1. transformAsync is exported by @babel/core as an async function and resolves to a transformation result object with code string
  2. transformCode helper transforms JavaScript code asynchronously and returns code string
  3. transformAsync applies custom plugin visitors to modify AST identifiers
  4. transformAsync generates source maps with version, sources, and mappings when sourceMaps is enabled
  5. transformAsync returns AST node with File root type and Program body when ast is enabled
  6. transformAsync returns null when filename matches configured ignore pattern
  7. transformAsync rejects with SyntaxError when input contains invalid syntax
  8. transformAsync supports asynchronous plugin factory functions resolving to visitor plugins

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