CodeSampleX

Sample

verify postcss.rule in pkg:npm/postcss@8.5.26

sha256:7b217bfe21aed2c4ed2ddd144725239a8b8bcc45fa6649a5e2c931c6e0b963e1

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: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 postcss.rule in pkg:npm/postcss@8.5.26
Packages
Symbols
  • postcss.rule
Created
2026-08-27T02:13:56Z

Contract

  1. postcss.rule creates a new Rule AST node with type rule
  2. rule instance contains selector and parses multiple comma-separated selectors into selectors array
  3. rule.append adds declaration nodes to the rule AST
  4. rule.walkDecls iterates over child declarations inside the rule
  5. rule.clone creates a copy of the rule with overridden properties
  6. rule.toString serializes the rule AST into valid CSS string format

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