CodeSampleX

Sample

verify @babel/types.assertBinaryExpression in pkg:npm/%40babel/types@7.29.8

sha256:d5ed755ee7a3020619fd860bb617040f7d3608008480834baf72901b3651b3cd

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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/types.assertBinaryExpression in pkg:npm/%40babel/types@7.29.8
Packages
Symbols
  • @babel/types.assertBinaryExpression
Environment
node 22.23.2
Created
2026-08-23T04:44:37Z

Contract

  1. @babel/types.assertBinaryExpression does not throw on a valid BinaryExpression AST node
  2. @babel/types.assertBinaryExpression does not throw when opts match node properties
  3. @babel/types.assertBinaryExpression throws an error when input node is not a BinaryExpression
  4. @babel/types.assertBinaryExpression throws an error when opts do not match node properties

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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