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Sample

Parse multi-document YAML streams with parseAllDocuments and handle directives and stream contents

sha256:8c5437a776ea881fd078f7790510e4f49fcd3906308de1fd778b7949bb61b56a

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 linux 24 · ubuntu · glibc 2.39 x64 npm wsl

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 multi-document YAML streams with parseAllDocuments and handle directives and stream contents
Packages
Symbols
  • yaml.parseAllDocuments
Created
2026-08-18T22:13:46Z

Contract

  1. assert YAML.parseAllDocuments parses multi-document stream separated by '---' into Document AST array and converts each to JS values via toJS
  2. assert YAML.parseAllDocuments captures YAML directives such as %YAML and %TAG on document directives property
  3. assert YAML.parseAllDocuments parses empty documents between delimiters as null contents without errors
  4. assert YAML.parseAllDocuments isolates parse errors to individual documents allowing valid documents in stream to parse
  5. assert YAML.parseAllDocuments accepts LineCounter option to track line and column numbers across multi-document streams
  6. assert parseAllToJS parses stream to JS objects and throws first YAMLParseError when stream contains syntax errors
  7. assert filterStream filters documents by predicate and stringifyAll serializes objects into multi-document stream

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

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