# js-yaml Projects at AI Tinkerers

> Canonical HTML: https://aitinkerers.org/technologies/js-yaml
> Markdown URL: https://aitinkerers.org/technologies/js-yaml.md
> Technology record last updated: 2026-03-06T23:03:25Z
> Generated: 2026-09-21T19:48:30Z

A high-performance YAML 1.2 parser and serializer for JavaScript environments.

js-yaml is the industry standard for handling YAML in Node.js and browser applications. It provides a full implementation of the YAML 1.2 specification, supporting critical features like custom tags, anchors, and complex object types. Developers use its load() and dump() methods to convert data structures with speed and precision (benchmarks show it outperforms competitors in parsing efficiency). It is a core dependency for major tools like ESLint and remains the most trusted solution for managing configuration files and data serialization in the JavaScript ecosystem.

- Official technology site: https://github.com/nodeca/js-yaml
- Public AI Tinkerers demos and talks: 1
- Result page: 1 of 1

## Recent Public Talks and Demos

### [GitOps for Rules: Tests, Signatures, and Policy Diffs for Changing Requirements](https://bremen.aitinkerers.org/talks/rsvp_JWF02w4zz2M)

I will demo a workflow that treats “rules” like deployable software artifacts. Starting from a policy module in YAML, I will show how changes produce a readable diff, trigger golden tests, generate a cryptographic signature, and publish a versioned module. Then I will run a batch simulation to quantify what the change actually does (block/flag rates, which rules fired, what shifted). Finally, I will export an evidence bundle for a single decision containing the module hash + trace. Code walkthrough only: diffing, test harness, signing, and the simulation runner.

- Event context: AI Tinkerers Bremen — 2026-03-25 — Bremen
- Public talk page: https://bremen.aitinkerers.org/talks/rsvp_JWF02w4zz2M

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