REAL-WORLD-SCHEMAS-09: Prompt-library card for AI agents

What it demonstrates

A prompt card pinning a model enum and a fenced code block holding the system prompt.

Builds on: REAL-WORLD-SCHEMAS-08: Postmortem: timeline table plus action items

How it’s done

The declarative YAML artifact, verbatim — no code required.

frontmatter:
  fields:
    model: { enum: [opus, sonnet, haiku] }
    temperature: { type: number, min: 0, max: 2 }
body:
  sections:
    - section: System prompt
      content:
        code: { lang: md }
    - section: Example output

Surfaces exercised

code content leaf pinned to lang -> content/code/lang
number frontmatter with min/max -> frontmatter/type; an enum field