Sample
commander 15.0.0: Parse boolean environment variables in Commander without presence-only truthiness trap
Verified sample for npm commander 15.0.0: Parse boolean environment variables in Commander without presence-only truthiness trap. The contract ran on node 22…
sha256:b953db7ef30e702f31dca9192e6ef548a50589157551d3ada4896bd8624d6d8d
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
- Parse boolean environment variables in Commander without presence-only truthiness trap
- Packages
- Symbols
-
- Option
- Option.prototype.env
- Option.prototype.preset
- Option.prototype.argParser
- Command.prototype.getOptionValueSource
- Environment
- node
- Created
- 2026-08-16T07:26:08Z
Contract
- prove new Option('--flag').env('VAR') evaluates to true when VAR is 'false' or '0'
- prove new Option('--flag [boolean]').preset('true').env('VAR').argParser() parses 'false' and '0' to false
- prove bare CLI flag --flag uses preset('true') and overrides falsy environment variables
- prove option value sources accurately report cli, env, and default precedence
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs