CodeSampleX

Sample

Parse and stringify YAML data

sha256:77536796b86a11bae6c46bef22a1b922115a0136e2aeb53428d59a540180c976

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 node windows 11 x64 node javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1		 2026-08-19

Case

HOW
Goal
Parse and stringify YAML data
Packages
Symbols
  • parse
  • stringify
Environment
node
Created
2026-08-18T21:55:44Z

Contract

  1. parse converts YAML scalar mappings into JavaScript objects
  2. parse converts YAML sequence structures into JavaScript arrays
  3. stringify converts JavaScript object into formatted YAML string
  4. stringify serializes nested objects and arrays correctly
  5. round-trip parse and stringify maintains data structure integrity

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous