CodeSampleX

Sample

verify pkg:npm/postcss@8.5.26

sha256:488675049b80a5aff4050b8635e23374fcd690967418a29c58e29c25012a1fa6

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

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/postcss@8.5.26
Packages
Environment
node 22.23.2
Created
2026-08-26T14:30:54Z

Contract

  1. assert node.next, node.prev, container.index, container.first, container.last, container.some, and container.every navigate and query child nodes within AST containers
  2. assert container.insertBefore, container.insertAfter, and container.removeAll modify container child lists and reset node references
  3. assert result.warn and result.warnings record diagnostic warnings with AST node positions and preserve custom plugin messages
  4. assert postcss.stringify and custom stringifiers serialize AST nodes and allow customizing emitted CSS output
  5. assert decl.raws controls whitespace and colon spacing, decl.important appends !important flag, and cleanRaws normalizes formatting

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous