Sample
yaml 2.9.0: Manipulate YAML Document AST paths, preserve comments, control scalar styles, and transform nodes with visit in yaml
Verified sample for npm yaml 2.9.0: Manipulate YAML Document AST paths, preserve comments, control scalar styles, and transform nodes with visit in yaml. The…
sha256:e48bea588f5dd5489beab783c6a88de0ad1b37a153accb93af38e0689dfd3a1d
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
- 2
- Signing keys that built it
- 2
Declared environment
node linux x64 node node 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@1 |
2026-08-17 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Manipulate YAML Document AST paths, preserve comments, control scalar styles, and transform nodes with visit in yaml
- Packages
- Symbols
-
- yaml.parseDocument
- yaml.Document
- yaml.visit
- yaml.Scalar
- Environment
- node
- Created
- 2026-08-17T14:47:12Z
Contract
- yaml.parseDocument returns a Document AST whose scalar values can be read and mutated via path arrays while preserving existing comments upon serialization
- doc.getIn with keepScalar flag returns the AST Scalar node to allow inspecting and updating scalar formatting styles
- doc.addIn, doc.deleteIn, and doc.hasIn manipulate sequence and mapping AST nodes at nested paths
- yaml.visit traverses document AST nodes and removes targeted nodes when returning visit.REMOVE
- doc.toJS with mapAsMap: true converts YAML mapping structures to native JavaScript Map instances
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs