CodeSampleX

Sample

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

sha256:ca477184e1d61a8650fa5b2ff00bebf1ee26caee8386bf6a5c94b7126bcb3df3

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/types.binaryExpression in pkg:npm/%40babel/types@7.29.8
Packages
Symbols
  • @babel/types.binaryExpression
Created
2026-08-23T04:27:32Z

Contract

  1. binaryExpression constructs an AST node with the specified operator, left, and right expression nodes
  2. binaryExpression supports nested binary expressions as operand subtrees
  3. isBinaryExpression correctly validates binary expression nodes against other AST node types
  4. assertBinaryExpression asserts that an AST node is a binary expression and throws on mismatch

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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