CodeSampleX

Sample

verify Node#next in pkg:npm/postcss@8.5.26

sha256:037554308553a8051fe798554a144f71278666d30e342cee9b051e839191dc12

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:d91480838ac982c9 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 Node#next in pkg:npm/postcss@8.5.26
Packages
Symbols
  • Node#next
Environment
node 22.23.2
Created
2026-08-27T02:00:45Z

Contract

  1. Node#next returns undefined when called on a node without a parent container
  2. Node#next returns the immediate next sibling node in a container with multiple children
  3. Node#next returns undefined when called on the last child node in a container
  4. Node#next supports forward traversal across mixed child node types including rules, declarations, comments, and at-rules
  5. Node#next dynamically returns the updated adjacent sibling following node insertion or removal in the AST
  6. Node#next enables sequential iterative forward traversal until reaching undefined at the end of child nodes

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous