CodeSampleX

Sample

Parse duration strings and format milliseconds using ms

sha256:a01e05504299d89a078e892715e9b4a2996a01dde89914ee968ff3e142a45fa4

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 duration strings and format milliseconds using ms
Packages
Symbols
  • ms
Environment
node 22
Created
2026-08-19T08:32:20Z

Contract

  1. ms parses human-readable duration strings into milliseconds
  2. ms parses negative duration strings into negative milliseconds
  3. ms formats milliseconds into short string representations
  4. ms formats milliseconds into long human-readable strings when long option is true
  5. ms returns undefined for invalid duration strings

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