CodeSampleX

Sample

parse YAML strings and documents into JavaScript data structures with YAML.parse

sha256:0212dd92657a15ad4290500bfc9ba30cd77a49de1d4cf99ce70c505c85d4b012

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 22 windows 11 x64 node 22 javascript npm 10

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 YAML strings and documents into JavaScript data structures with YAML.parse
Packages
Symbols
  • YAML.parse
Environment
node 22
Created
2026-08-19T03:01:44Z

Contract

  1. YAML.parse parses YAML scalars (strings, numbers, booleans, and null) into JavaScript primitive values
  2. YAML.parse parses nested YAML mappings into plain JavaScript objects
  3. YAML.parse parses YAML sequences into JavaScript arrays
  4. YAML.parse supports reviver function to transform parsed values
  5. YAML.parse parses multiline block scalar strings (literal and folded)
  6. YAML.parse throws an error when parsing invalid YAML syntax

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