CodeSampleX

Sample

verify pkg:npm/ms@2.1.3

sha256:6c19d93b7207c063ed44d7797eba7f0bcdf2be17a9e377feda3de11063464e64

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
verify pkg:npm/ms@2.1.3
Packages
Created
2026-08-19T07:25:13Z

Contract

  1. assert ms parses time strings with various units (years, weeks, days, hours, minutes, seconds, milliseconds) into milliseconds
  2. assert ms parses decimal and leading-dot duration strings as well as negative signed values and case-insensitive units
  3. assert ms returns undefined for unrecognized strings and strings exceeding 100 characters
  4. assert ms formats milliseconds into short duration strings for positive and negative values
  5. assert ms formats milliseconds into long human-readable strings with singular and plural units when long option is true
  6. assert ms throws an Error for empty strings, non-string, non-number, and non-finite inputs like objects, arrays, booleans, null, undefined, NaN, and Infinity

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous