CodeSampleX

Sample

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

sha256:464c794b83460c658ed25b4019982d89416536c626437bc8149617c18d564fb4

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…
2026-08-27

Case

HOW
Goal
verify Container.index in pkg:npm/postcss@8.5.26
Packages
Symbols
  • Container.index
Environment
node 22.23.2
Created
2026-08-27T09:50:39Z

Contract

  1. Container.prototype.index returns the 0-based index of a child node within a Root container.
  2. Container.prototype.index returns the index of a Declaration node within a Rule container.
  3. Container.prototype.index returns -1 when the given node is not a child of the container.
  4. Container.prototype.index returns the input number unchanged when passed a numeric index.
  5. Container.prototype.index reflects updated child positions after prepend, insert, and remove operations.
  6. Container.prototype.index locates nested rules and declarations within an AtRule container.

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous