CodeSampleX

Sample

verify pkg:npm/merge-descriptors@2.0.0

sha256:35f140e46c88ff79fe13a131d1cd8be3c3b38a3bbfb8e5bb62f2100adb8d1496

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

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

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS

Declared environment

Operating system
windows 11
Architecture
x64
Package manager
npm

Verification-run environments

node 22 · linux alpine/x64 · docker PASS
Execution context
node 22
Operating system
linux alpine · musl
Architecture
x64
Runtime
node 22
Language
javascript
Package manager
npm
Execution
container · docker

CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-19

Case

HOW
Goal
verify pkg:npm/merge-descriptors@2.0.0
Packages
Created
2026-08-18T18:23:00Z

Contract

  1. mergeDescriptors merges own properties from source to destination object
  2. mergeDescriptors returns the modified destination object
  3. mergeDescriptors overwrites existing destination properties by default
  4. mergeDescriptors skips existing destination properties when overwrite is false
  5. mergeDescriptors copies getter and setter accessors without invoking them during merge
  6. mergeDescriptors copies non-enumerable properties and preserves property flags
  7. mergeDescriptors throws TypeError when destination or source is missing or falsy
  8. wrapper merge matches direct mergeDescriptors behavior

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous

Verification receipts

  • node 22 · linux alpine/x64 · docker PASS
    CONTAINER_RUN compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS node-typescript@1
    ed25519:2175b912ea1c23b1