CodeSampleX

Sample

parse and format human-readable duration strings with ms

sha256:0fb74f96244dd91969c73b61712dbd3c7c2402c9a3e7fe6d8df6688574460a52

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 windows 11 x64 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
parse and format human-readable duration strings with ms
Packages
Symbols
  • ms
Created
2026-08-19T07:18:09Z

Contract

  1. ms parses short and long time strings into milliseconds
  2. ms parses negative duration strings into negative milliseconds
  3. ms formats milliseconds into short human readable strings
  4. ms formats milliseconds into long human readable strings with options
  5. ms round-trips duration strings and millisecond numbers

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