Field report: impeccable SaaS-ified a developer docs page; the Opus
galleries showed the same on an album page. Root cause: two registers
force every surface into persuade-or-operate grammar. The register
section now names the visitor's mode first (Persuade / Operate / Read /
Experience) with mode-borrowing called out as the canonical failure,
and PRODUCT.md's register field maps as family (brand = Persuade +
Experience, product = Operate + Read) for compatibility. Read mode:
comprehension deliverable, navigable structure, chrome out of the way.
Experience mode: the artifact leads at every screen size.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
