CodeSampleX

Sample

commander 15.0.0: Prevent silent boolean option default regression in Commander 15 by accounting for paired positive/negative flags remaining undefined instead of defaulting to true like lone negated flags

Verified sample for npm commander 15.0.0: Prevent silent boolean option default regression in Commander 15 by accounting for paired positive/negative flags…

sha256:e9734b35dd9bf261570327aa6767cba61b29225dbb1b6eebc59d47cb344f1141

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
2
Signing keys that built it
2
Declared environment node linux x64 node node npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-16
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-18

Case

HOW
Goal
Prevent silent boolean option default regression in Commander 15 by accounting for paired positive/negative flags remaining undefined instead of defaulting to true like lone negated flags
Packages
Symbols
  • Command
  • Option
  • Command.option
  • Command.opts
  • Command.getOptionValueSource
  • Command.parse
  • Command.addOption
  • Option.default
Environment
node
Created
2026-08-16T07:26:06Z

Contract

  1. assert lone negated option (--no-cache) defaults opts().cache to true with source 'default' when omitted from CLI
  2. assert paired positive and negative options (--cache + --no-cache) leave opts().cache undefined without implicit true default in Commander 15
  3. assert negative-first paired options (--no-cache + --cache) also leave opts().cache undefined when omitted
  4. assert explicit CLI flags on dual options resolve accurately to true for --cache and false for --no-cache with source 'cli'
  5. assert explicit Option.default(true) is required on paired options to restore default true behavior in Commander 15
  6. assert action handler callback receives undefined for omitted dual options

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed