The spec's tooth section described the design that the first live test
disproved — descriptive phrasing primary, bare numerals refused in en.
Rewrites §6 around the rule the product actually wants, records the chip
affordance in §7, and closes open item §11.5: a two-digit number is FDI in
all three locales, with the Universal-numbering trade-off written down
rather than left implied.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>