REAL-WORLD-SCHEMAS-11: Frontmatter governance across the whole tree

What it demonstrates

A catch-all rule with an exclude that enforces a baseline contract on every remaining document.

Builds on: REAL-WORLD-SCHEMAS-10: Corpus config: route two types, first match wins

How it’s done

The declarative YAML artifact, verbatim — no code required.

rules:
  - include: ["docs/adr/**/*.md"]
    contract: adr
  - include: ["**/*.md"]
    exclude: ["**/README.md", "**/node_modules/**"]
    contract: ./contracts/has-frontmatter.contract.yaml

Surfaces exercised

• config rule exclude globs; first-match ordering (specific before catch-all)
• a baseline frontmatter contract applied across the tree