CodeSampleX

Sample

verify pkg:npm/jest-message-util@29.7.0

sha256:ba74e0e5a20eee039fd8eaf750c42ebd80794ce7bd172dc1330ba031cfd9c4ec

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/jest-message-util@29.7.0
Packages
Environment
node 22.23.2
Created
2026-08-26T06:31:54Z

Contract

  1. separateMessageFromStack separates the error message header from stack trace lines
  2. getStackTraceLines filters out Node.js internal runtime frames from stack traces
  3. getTopFrame parses the topmost call frame into file, line, and column details
  4. formatPath converts absolute paths within stack trace lines to rootDir-relative paths
  5. formatStackTrace formats and cleans error stack traces against configuration options
  6. formatExecError formats uncaught execution errors with test suite failure headers and stacks
  7. formatResultsErrors formats test failure assertion results with ancestor suite titles
  8. indentAllLines indents multiline text with standard indentation prefix

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous