CodeSampleX

Sample

detect terminal color support with supports-color

sha256:1204bc3804b64a340e7deaa866bfae685f8712aeec5188c3e549bb71a26f7473

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 linux 24 · ubuntu · glibc 2.39 x64 npm

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…		 2026-08-26

Case

HOW
Goal
detect terminal color support with supports-color
Packages
Symbols
  • supportsColor.stderr
  • supportsColor.stdout
Created
2026-08-26T09:32:44Z

Contract

  1. supportsColor.stdout evaluates standard output color support returning false or level descriptor object
  2. supportsColor.stderr evaluates standard error color support returning false or level descriptor object
  3. supportsColor returns false for non-TTY stream when color is not forced
  4. supportsColor returns false when TERM is set to dumb
  5. supportsColor detects basic color support with level 1 and hasBasic true for xterm TTY stream
  6. supportsColor detects 256 color support with level 2 and has256 true for xterm-256color TTY stream
  7. supportsColor detects 16m truecolor support with level 3 and has16m true when COLORTERM is truecolor for TTY stream

Files

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

Download the source artifact (tar.gz)

Origin Seeder

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