Interaction: union + discriminatedUnion in markdown

Input Markdown

## 3. EVENTS

### Step A

**STATUS:** ACTIVE

**NARRATION:** Analyst handled escalation.

Schema

import { md } from '@markschema/mdshape'

const schema = md.document({
  events: md.section('3. EVENTS').subsections(3).each(
    md.object({
      status: md.match.label('STATUS').value(
        md.union([
          md.literal('ACTIVE'),
          md.string().transform((v) => Number(v)).pipeline(md.number().min(0).max(10)),
        ]),
      ),
      intents: md.match
        .labels(['NARRATION', 'VISUAL'])
        .entries({ nameKey: 'type', contentKey: 'text' })
        .each(
          md.discriminatedUnion('type', [
            md.object({ type: md.literal('NARRATION'), text: md.string().min(10) }),
            md.object({ type: md.literal('VISUAL'), text: md.string().min(10) }),
          ]),
        ),
    }),
  ),
})

Result

Success

{
  "success": true,
  "data": {
    "events": [
      {
        "status": "ACTIVE",
        "intents": [
          {
            "type": "NARRATION",
            "text": "Analyst handled escalation."
          }
        ]
      }
    ]
  }
}

Error

Failure trigger: The input violates one or more constraints declared in the schema; use issues[].path and issues[].code to locate the exact failing node.

{
  "success": false,
  "error": {
    "issues": [
      {
        "code": "missing_section",
        "message": "Missing section \"3. EVENTS\"",
        "path": [
          "events"
        ],
        "line": 1,
        "position": {
          "start": {
            "line": 1,
            "column": 1
          }
        }
      }
    ]
  }
}