CodeSampleX

Sample

verify postcss.Container.insertBefore in pkg:npm/postcss@8.5.26

sha256:dec2f8e6c40b73676c856ae1744481dd9c2ba4c03bd9270245868ef0698e45bf

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…
2026-08-27

Case

HOW
Goal
verify postcss.Container.insertBefore in pkg:npm/postcss@8.5.26
Packages
Symbols
  • postcss.Container.insertBefore
Created
2026-08-27T09:33:47Z

Contract

  1. assert insertBefore inserts a Declaration node before a target Declaration and returns the container
  2. assert insertBefore inserts a node before a numeric child index
  3. assert insertBefore normalizes and inserts a plain declaration object
  4. assert insertBefore normalizes and inserts raw CSS string declarations
  5. assert insertBefore inserts multiple Node instances passed as an array
  6. assert insertBefore reparents an existing node moved from another container
  7. assert insertBefore inserts a Rule into a Root container before another Rule
  8. assert insertDeclarationsBefore helper inserts multiple declaration items before target in sequence

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

anonymous