CodeSampleX

Sample

redirect and format log streams using CustomConsole and NullConsole

sha256:57ac63876189c56e86f10a844b9ddd2578febf6d0bfff4c49a33c26daff6eec6

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…
2026-08-27

Case

HOW
Goal
redirect and format log streams using CustomConsole and NullConsole
Packages
Symbols
  • CustomConsole
  • NullConsole
Environment
node 22.23.2
Created
2026-08-27T17:57:13Z

Contract

  1. CustomConsole routes stdout methods (log, info, debug, dir, dirxml) to custom stdout stream and stderr methods (warn, error) to custom stderr stream
  2. CustomConsole applies custom formatBuffer transformations to all emitted stdout and stderr messages
  3. CustomConsole indents grouped logs according to groupDepth and bolds group and groupCollapsed titles
  4. CustomConsole tracks named timers with time, timeLog, and timeEnd, and named counters with count and countReset
  5. CustomConsole.assert intercepts AssertionError on falsy conditions and logs to stderr without throwing while passing truthy conditions silently
  6. CustomConsole.getBuffer always returns undefined
  7. NullConsole requires writable streams in constructor and throws ERR_CONSOLE_WRITABLE_STREAM if instantiated without arguments
  8. NullConsole silences all console methods including log, info, warn, error, debug, assert, and timers without emitting output to streams

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

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