Sample
verify js-yaml.Schema in pkg:npm/js-yaml@4.1.0
sha256:b533e7691f258bb33632b9d30b1c31a8dcda08defc74578051404dd3abc98f92
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… |
2026-08-28 |
Case
HOW- Goal
- verify js-yaml.Schema in pkg:npm/js-yaml@4.1.0
- Packages
- Symbols
-
- js-yaml.Schema
- Environment
- node 22.23.2
- Created
- 2026-08-28T03:32:13Z
Contract
- new yaml.Schema(type) instantiates a custom Schema containing the explicit Type
- yaml.DEFAULT_SCHEMA.extend(type) creates a new Schema inheriting default types with added custom explicit Type
- yaml.DEFAULT_SCHEMA.extend([type1, type2]) creates a new Schema with multiple custom explicit Types
- yaml.DEFAULT_SCHEMA.extend({ implicit: [type] }) extends schema with custom implicit scalar Type
- yaml.load with extended Schema deserializes custom explicit tags into instantiated objects
- yaml.dump with extended Schema serializes custom objects with custom tag notation
- yaml.load with extended Schema resolves custom implicit scalar types automatically
- yaml.DEFAULT_SCHEMA.extend throws YAMLException when given invalid type definitions
Files
- PROMPT.md
- csx.json
- package-lock.json
- package.json
- spec.json
- test/contract.cjs
Origin Seeder
anonymous