CodeSampleX

Sample

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

sha256:54e26adf22176d0ce10fccc0853eab801c940eec1a40b51cf1080521eba18b01

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.memberExpression in pkg:npm/%40babel/types@7.29.8
Packages
Symbols
  • @babel/types.memberExpression
Environment
node 22.23.2
Created
2026-08-23T05:13:40Z

Contract

  1. memberExpression constructs a static MemberExpression AST node with object and property identifiers
  2. memberExpression constructs a computed MemberExpression AST node when computed is true
  3. memberExpression constructs an optional chaining MemberExpression AST node when optional is true
  4. isMemberExpression returns true for MemberExpression nodes and false for other AST nodes or invalid inputs
  5. assertMemberExpression succeeds on valid MemberExpression nodes and throws on mismatched node types

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

anonymous