CodeSampleX

Sample

verify pkg:npm/chalk@4.1.2

sha256:4b029aaeb5b85c0dcedd38477e2ad9d2f7168e6b2492fbbd98fd1513aae12733

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…
2026-08-26

Case

HOW
Goal
verify pkg:npm/chalk@4.1.2
Packages
Environment
node 22.23.2
Created
2026-08-26T09:09:22Z

Contract

  1. chalk default export is a styling function with Instance constructor and undefined Chalk property in chalk 4.x
  2. chalk.Instance with level 3 produces 24-bit TrueColor ANSI escape sequences for rgb, hex, and bgHex colors
  3. chalk.Instance with level 2 downsamples 24-bit rgb and hex colors to 256-color palette ANSI escape codes
  4. chalk.Instance with level 1 downsamples rgb and hex colors to basic 16-color ANSI escape codes
  5. chalk.Instance with level 0 disables ANSI color sequences and returns plain unstyled strings
  6. mutating the level property dynamically updates color downsampling on an existing chalk instance
  7. nested styling re-opens the enclosing color code immediately after the nested color close code
  8. chained style modifiers apply opening and closing ANSI codes in inverse order
  9. variadic arguments passed to style functions are concatenated with spaces
  10. passing a Symbol to style functions throws a TypeError during string coercion

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous