CodeSampleX

Sample

stringify JavaScript objects into YAML using stringify

sha256:4a12a321bacaa17f9d1fde8c175dcde049db8083b1056e62a0cccdada9c2f3e4

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
stringify JavaScript objects into YAML using stringify
Packages
Symbols
  • stringify
Environment
node
Created
2026-08-19T04:53:13Z

Contract

  1. stringify serializes JavaScript object with primitives into formatted YAML string
  2. stringify serializes nested arrays and objects into nested YAML structures
  3. stringify respects custom formatting options such as indent width
  4. stringify supports replacer function to transform or filter keys during serialization
  5. stringify handles scalar types including boolean, number, string, and null

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