19. Milestones are accepted on real documents

Date: 2026-09-13

Status

Accepted

Context

Hand-built test files prove the code handles what we imagined. Producers emit what they emit.

Decision

Every milestone states acceptance conditions verified against tests/corpus, a set of documents produced by real generators and contributed from the field, rather than only on files we wrote by hand.

Consequences

• Consequence — the corpus and its manifest are part of the library's contract; see docs/corpus.md.

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Recorded as D18 before this project adopted Architecture Decision Records; the identifier still appears in commit messages and in CLAUDE.md.