Sample
yaml 2.9.0: YAMLMap, YAMLSeq, Pair
Verified sample for npm yaml 2.9.0: YAMLMap, YAMLSeq, Pair. The contract ran on node 22 · linux alpine/x64 · docker and passed: assert YAMLMap constructs…
sha256:5e23213c6a35d38c111198166f28e98ebdcc091bf79f220ed18514aa0d5ecbc6
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 wsl
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-19 |
Case
HOW- Goal
- verify pkg:npm/yaml@2.9.0
- Packages
- Symbols
-
- yaml.YAMLMap
- yaml.YAMLSeq
- yaml.Pair
- yaml.isMap
- yaml.isSeq
- yaml.isPair
- yaml.isScalar
- yaml.isNode
- yaml.LineCounter
- Created
- 2026-08-18T22:17:37Z
Contract
- assert YAMLMap constructs mapping AST nodes with key-value pairs, item lookup, deletion, and flow-style serialization
- assert YAMLSeq constructs sequence AST nodes with indexed element access, flow-style formatting, and serialization
- assert Pair constructs key-value AST nodes with key and value properties
- assert AST type guards isMap, isSeq, isPair, isScalar, and isNode accurately identify YAML AST node types
- assert LineCounter tracks line and column coordinates for character offsets in parsed YAML documents
Files
- PROMPT.md
- csx.json
- index.mjs
- package-lock.json
- package.json
- spec.json
- test/contract.mjs
Origin Seeder
anonymous