Command substitution strips every trailing newline, so 'grouped\n\n'
reached the case as a clean word and passed — the round's shared blocker
(codex, grok). A line count taken from the file itself now refuses any
physically multi-line sentinel before the word check runs, with the
existing diagnosis naming the file. Red rows: grouped/flat with a
trailing blank line in the unit suite, grouped in the armed suite.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
167/175 gain '### Added', 173/178 '### Changed', 180 '### Fixed' — every
bullet byte-identical, headings only (the #158 bar, inverted). CONSUMERS.md
names the sentinel and the flip procedure; changelog.d/README.md names the
sentinel. 182.md is this PR's own fragment, grouped atop the sentinel it
ships.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Must-pass and must-fail rows from #182's test plan: the flip shape green
under the sentinel, drift and malformed sentinels red with file named, the
D3 fragment-list assertion, and D5 sentinel survival through consumption.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The sentinel pins the set's shape, outranking the newest-published-section
inference (#182 D2); malformed content is a red diagnosis naming the file.
bin/changelog-assemble skips 'shape' in the stray-file loop so the sentinel
survives the consumption (#182 D5).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
