CodeSampleX

Sample

verify @babel/plugin-syntax-import-attributes.default in pkg:npm/%40babel/plugin-syntax-import-attributes@7.29.7

sha256:358e432d7059dab3d2c5058f9e8ecd929dd2ba77ede01d1672d75d84b6a78192

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

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

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@1
2026-08-21

Case

HOW
Goal
verify @babel/plugin-syntax-import-attributes.default in pkg:npm/%40babel/plugin-syntax-import-attributes@7.29.7
Packages
Symbols
  • @babel/plugin-syntax-import-attributes.default
Created
2026-08-21T06:10:03Z

Contract

  1. plugin exports a Babel plugin declaration function
  2. plugin asserts Babel version compatibility and returns syntax-import-attributes plugin object
  3. plugin validates deprecatedAssertSyntax option
  4. plugin manipulateOptions sets default importAttributesKeyword to with and registers importAttributes parser plugin
  5. plugin manipulateOptions handles deprecatedAssertSyntax option and replaces importAssertions parser plugin
  6. plugin enables Babel transformSync and parseSync to parse static import declaration with import attributes
  7. plugin enables Babel transformSync to parse export declaration with import attributes
  8. plugin enables Babel transformSync to parse dynamic import with with attribute option

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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