---
doc-id: "hello-world-001"
title: "Hello World — MDA Quick Start"
description: "A minimal example demonstrating all three MDA components."
tags: ["quickstart", "example", "hello-world"]
purpose: "Tutorial"
created-date: "2026-04-08T00:00:00Z"
---

# Hello, MDA!

This is a minimal MDA document. It looks like regular Markdown but includes three optional enhancements:

1. **Front Matter** (above) — structured metadata in YAML
2. **AI Script** (below) — processing instructions for LLMs
3. **Footnotes** (bottom) — typed document relationships

## Content

MDA extends Markdown without breaking it. Any Markdown renderer will display this file correctly. AI systems that understand MDA can additionally leverage the metadata, instructions, and relationships.

```ai-script
{
  "script-id": "summarize-hello",
  "prompt": "Summarize this document in one sentence for a developer audience.",
  "priority": "low",
  "auto-run": false,
  "output-format": "markdown"
}
```

## Learn More

See the full specification for details on each component[^spec].

[^spec]: `{"rel-type": "parent", "doc-id": "MDA-SPEC-001", "rel-desc": "MDA Open Spec — full document"}`
