CodeSampleX

Sample

Traverse, modify, and remove YAML AST nodes with yaml.visit and yaml.visitAsync using visit.SKIP, visit.REMOVE, and visit.BREAK

sha256:27619a6c34f0eaf79a9a10b51b9da2b4c2d63c32eae1919f1914d7b3aaa491c7

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 22.22 linux 24 · ubuntu · glibc 2.39 x64 node 22.22 javascript npm 11 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
Traverse, modify, and remove YAML AST nodes with yaml.visit and yaml.visitAsync using visit.SKIP, visit.REMOVE, and visit.BREAK
Packages
Symbols
  • visit
  • visit.BREAK
  • visit.REMOVE
  • visit.SKIP
  • visitAsync
Environment
node 22.22.2
Created
2026-08-19T08:21:19Z

Contract

  1. assert visit traverses AST scalar nodes and transforms string values in place
  2. assert visit replaces nodes when visitor returns a new value or node
  3. assert visit.SKIP prevents traversal into nested child nodes
  4. assert visit.REMOVE deletes matching nodes from collections
  5. assert visit.BREAK aborts traversal immediately across remaining nodes
  6. assert visitAsync performs asynchronous traversal and awaits async visitor functions

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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