CodeSampleX

Sample

parse command line options with types and shorthands

sha256:71efd188ba4473961fcda69d45e5687cc1eb29a4bc77c929f3f02e0ab504294e

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-28

Case

HOW
Goal
parse command line options with types and shorthands
Packages
Symbols
  • nopt
Environment
node 22.23.2
Created
2026-08-28T04:55:25Z

Contract

  1. nopt parses typed options including String, Number, Boolean, Array, path, and Date from command line arguments
  2. nopt expands single and multi-flag shorthands into their canonical option equivalents
  3. nopt handles boolean negation with --no prefix and collects trailing arguments after -- in argv.remain
  4. nopt.clean coerces and validates option values according to type definitions
  5. nopt.typeDefs provides default type validators for standard JavaScript types

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.js

Download the source artifact (tar.gz)

Origin Seeder

anonymous