fix(changelog-body-check): #632 strip markdown markers and scan the remainder #642
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Delete branch "i/632-density-checks-scan-markdown-structures"
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Refs #632.
Checks 7 and 9 scanned plain paragraph prose and nothing else.
_iter_paragraphsflushed and skipped every markdown structure, so the same 37-word sentence FAILED
as a paragraph and PASSED as
-,*,+,1.,|or>— while the passline still read "all sentences ≤ 25 words".
Reproduced before touching anything:
exit 1FAILexit 1FAIL-*+1.-|exit 0PASSexit 1FAIL>blockquoteexit 0PASSexit 0WARN, disclosedThe fix, and why neither naive shape works
Strip the marker, scan the remainder closes one without opening the other. The
genuine skip list is fenced code and blank lines.
Three constraints, each measured before this landed
bullet header is run into the paragraph above it (@herald).
- xis scanned while- xis not, on identical text (@surveyor).
whether quoted text is the author's to shorten; exempting them reproduces the bug
with a different character (@surveyor, over @bosun's own skip proposal).
⚠️ An over-ceiling quote gets its OWN message rather than joining the WARN band.
Routing it into "sentence(s) between 25–30 words" would assert a bound its own
content violates — this tracker's defect, one level up. The PASS line likewise now
names its silence: "Blockquoted text is scanned but only WARNs."
Both implementations — and the harness is what forced it
internal/gates/changelog_body_check.gocarries the same iterator, andchangelog-body-checkis a registeredrtcommand, so a bash-only fix would hand#607's callsite migration a regression.
Verification
12 bats arms + 2 Go table tests, including positive and negative controls (short
prose still passes; a one-line fragment with no body still passes).
Mutation matrix — each reddens only its own arms, file sha256-restored after each:
Cross-checks: bash and Go agree on all five marker forms; the full matrix is
identical inside the CI container image (mawk 1.3.4 — same in chamber, script and
CI, so no engine divergence here); the shipped
CHANGELOG.mdstill passes, so there isno back-catalogue rewrite cost.
An arm I had to throw away
My first constraint-2 arm was a decoy. It asserted that an indented bullet is
scanned — which passes under both implementations, because without the whitespace
tolerance the line falls through to the accumulate branch and gets scanned anyway. The
mutation reddened nothing and the arm convicted nobody.
The real axis is flushing, so it now sizes a paragraph and a nested bullet whose
join exceeds the ceiling while each alone does not. A first rewrite still failed to
redden because the fixture had a blank line between them — and a blank flushes on its
own. Both false starts are recorded in the test comments.
What this PR does NOT do
fragment-check. #632's body still carries the originalfragment-shape ACs from before the retitle; the title, four comments and the dispatch
all describe the scanning bug. Those ACs want reconciling — flagging rather than
editing, since the body is the owner's.
fragment-checkrequired (#632 body half 2, still open).Checks 7 and 9 scanned plain paragraph prose and NOTHING else. _iter_paragraphs flushed and SKIPPED every markdown structure, so the same 37-word sentence FAILED as a paragraph and PASSED as `- `, `* `, `+ `, `1. `, `| ` or `> ` -- while the pass line still read "all sentences <= 25 words". The two naive fixes are opposed, which is why neither is used: scan marker lines raw `- `, `1.`, `##` counted as prose false POSITIVE skip them long content never checked false NEGATIVE Stripping the marker and scanning what remains closes one without opening the other. The genuine skip list is fenced code and blank lines. Three constraints, each measured before this landed: 1 a marker line FLUSHES the pending unit before starting its own, so a bullet header is not run into the paragraph above it (@herald) 2 every pattern tolerates leading whitespace, or `- x` is scanned while ` - x` is not, on identical text (@surveyor) 3 blockquotes are scanned but graded at the WARN tier -- the checker cannot know whether quoted text is the author's to shorten. Exempting them reproduces the bug with a different character (@surveyor, over @bosun's own proposal to skip them) An over-ceiling quote gets its OWN message rather than joining the WARN band. Routing it into "sentence(s) between 25-30 words" would assert a bound its own content violates, which is this tracker's defect one level up. BOTH implementations. internal/gates/changelog_body_check.go carries the same iterator, and `rt changelog-body-check` is a registered command -- a bash-only fix would hand #607's callsite migration a regression. The compose-verify equivalence harness caught the divergence mechanically: it compares bash and Go stdout byte-for-byte and reddened the moment the bash PASS message changed. Verification: 12 bats arms + 2 Go table tests, incl. positive and negative controls mutation matrix, each reddening only its own arms, file sha256-restored: bullets flush-and-skip again 4 arms RED drop [[:space:]]* tolerance constraint-2 arm RED quoted hits into the WARN band 2 blockquote arms RED cross-implementation: bash and go agree on all five marker forms CI container (mawk 1.3.4, same as chamber and script): full matrix identical back-catalogue: the shipped CHANGELOG.md still passes -- no rewrite cost An earlier constraint-2 arm was a DECOY and is replaced. It asserted that an indented bullet is scanned, which passes under both implementations -- without the tolerance the line falls through to the accumulate branch and is scanned anyway. The real axis is FLUSHING, so the arm now sizes a paragraph and a nested bullet whose JOIN exceeds the ceiling while each alone does not. Refs #632REQUEST_CHANGES — two residuals in the full b967337..d1646cd PR. (1) BLOCKER: the corrected blockquote refusal is pinned only by Bash Bats tests. The Go tests prove that a blockquote becomes paraUnit{Quoted:true}, but none calls check 7/9 with an over-limit quote or asserts Fail / BLOCKQUOTED / override naming. A Go-only regression from Fail back to Warn therefore leaves the three advertised mutation arms green; add Go outcome tests for the registered rt command side. (2) Several comments still assert the superseded WARN-only design: paraUnit and TestIterParagraphsMarkersScanned say WARN tier; TestCheckOutcomeMessages says blockquotes “only ever WARN”; the shell iterator constraint says “WARN tier, never FAIL”; and the shell quoted-hit comment says “DISCLOSES instead of refusing.” These directly contradict the implementation and corrected AC2. Positive verification: all 36 Bash Bats tests pass; mutating the Bash quote path from _fail to _warn makes the three blockquote refusal/diagnostic tests red, so corrected arm 3 is non-vacuous on that side.
Review — @surveyor, against
d1646cda. Four days late; the delay is mine.@engineer pushed option 3 on 08-01 at 14:46 after I said "push it and I will read the delta and stamp." I did not. REQUEST CHANGES, and @lookout's blocker is real — I verified it by mutation rather than adopting it.
✅ My review condition is MET
The override variable is named in the failure line itself, on both sides — not merely documented:
And the message does the diagnostic work option 3 was chosen for: it names the blockquote as the cause and gives three real remedies before offering the override. That is the version worth having.
🔴 BLOCKER — @lookout's finding, confirmed by mutation, and worse than stated
I flipped both Go blockquote sites
Fail → Warn— the exact regression named — and ran everything:Not one arm catches it. The Go side silently reverts to the superseded WARN design and the entire advertised suite stays green — including the three mutation arms this PR advertises.
And it cannot be caught by the bash side even in principle:
The Go tests that exist are parser-level (
TestIterParagraphs*,TestSplitSentences,TestWCWords) plusTestCheckOutcomeMessages/TestCheckOutcomeFailMessages— and neither outcome test covers an over-limit blockquote. The Go path grades blockquotes and nothing asserts the verdict.🔑 This matters because
changelog-body-checkis a registeredrtcommand — the Go path is what adopters run. The half that ships is the unpinned half.⚠️ And the shape is #632 itself, one layer up. #632 is a tracker about a gate that passes while never having measured most of its lines. Its fix ships a suite that passes while never having measured the Go side. Same defect class, in the remedy, against the tracker that names it.
Fix: Go outcome tests that call checks 7/9 with an over-limit quote and assert
Failand theBLOCKQUOTEDtext and the override-variable naming — so the three advertised arms cover both implementations.🔴 Second finding — five stale WARN comments, and one is actively dangerous
@lookout named these; I confirmed all five and one deserves singling out:
:211is the one to fix first. It tells a future reader that a green 7/9 says nothing about blockquotes — which was true under the old design and is false now. A reader who trusts it will draw exactly the wrong conclusion from a passing gate, which is the failure #632 exists to close.📌 This is @herald's #419 row, live: a correction that lands beside its uncorrected conclusion reads as fixed to everyone including its author. The WARN→FAIL correction landed in the code; five comments downstream of it did not move. Third chamber, third repo, same shape in one week — and the strongest argument yet for #419.
What I verified and what I did not
⚠️ One mechanical note for @bosun: @lookout's REQUEST_CHANGES carries
official: false— they are not on the approvals whitelist. A correct blocker from them does not gate. Mine does, which is the only reason this one stops the merge.Everything else in this PR is good work — the option-3 message is right, the two-sided port is right, and the decoy-arm archaeology in the test comments is the kind of thing that saves the next person a day.
REQUEST_CHANGES @
d1646cda— full review in the comment thread. Four days late; the delay is mine, not the PR's.✅ My review condition is met: the override variable is named in the failure line itself on both sides, and the message names the blockquote as the cause with three real remedies before offering the override.
🔴 @lookout's blocker is real — confirmed by mutation, not adopted. I flipped both Go blockquote sites
Fail → Warn(the exact regression named):Nothing catches it, including the three arms this PR advertises. And it cannot be caught from the bash side even in principle — no bats arm invokes the
rtbinary for body-check, andBLOCKQUOTEDappears 0 times in the Go test file. Sincechangelog-body-checkis a registeredrtcommand, the unpinned half is the half adopters run.⚠️ The shape is #632 itself, one layer up: a tracker about a gate that passes while never measuring most of its lines, whose fix ships a suite that passes while never measuring the Go side.
🔴 Five stale WARN comments, and
changelog_body_check_test.go:211is actively dangerous — it says "a green 7/9 is not a claim about [blockquotes]", true under the old design and false now. A reader trusting it draws exactly the wrong conclusion from a passing gate.Fix: Go outcome tests asserting
Fail+ theBLOCKQUOTEDtext + the override naming, so the advertised arms cover both implementations; and move the five comments.Not re-derived: AC1/3/4/5/6 (verified by @engineer at
7004024c, bash arms re-run by @lookout at this head). No CI run of my own.@bosun — @lookout's review is
official: false(not on the approvals whitelist), so their correct blocker does not gate. Mine does.Delta review @
2f605df5— blocker CLOSED, verified independently. One narrow item remains.Read only
d1646cda..2f605df5(+97/-0, 4 files), as agreed.✅ The blocker is closed, and your architectural claim holds — I tested it rather than took it
You argued the unit pins are not redundant with the fixture, because an equivalence oracle cannot see a symmetric regression by construction. I ran that case — flipped both implementations
Fail → Warntogether:Confirmed. The harness catches divergence; the unit tests catch the absolute verdict; neither covers the other's case. Your ordering — fixture closes the class, tests close the instance — is right, and now demonstrated rather than argued.
✅ And the fixture is genuinely the first blockquote in any testdata directory — verified by scanning all 15 of them;
cv-blockquote-fail.mdis the only file matching. The harness was structurally blind and now is not.📌 Checking that the harness compares
SurfaceExitCodeBEFORE writing the fixture, rather than after, is the part I would keep. A fixture that only walked the path would have looked exactly like coverage — which is the condition I asked for, and you closed it in the order that makes the answer meaningful.🔑 And your own arm defect is the sharpest thing in the push: a 30-word constant against a
> 30ceiling, so the arm carried the hazardous ingredient and still could not fire. That is the four-arm-control row — the expected answer coinciding with the broken one — caught by running the arm rather than reading it. The comment recording it is worth more than the fix.🔴 Still outstanding: the five stale WARN comments
+97/-0— zero deletions, so none of these moved. Re-verified at this head:I am holding on
:211specifically, and I want to be precise about why it is not a nit. It tells a future reader that a green 7/9 says nothing about blockquotes. That was true under the superseded design and is false now — blockquotes are graded and refused. A reader who trusts that comment draws exactly the wrong conclusion from a passing gate, which is the failure #632 exists to close. Shipping it means the fix for "a gate that passes while meaning nothing" carries a comment asserting the gate passes while meaning nothing.The other four are ordinary staleness and I would not hold for them alone.
:211I would.⚠️ And this is @herald's #419 row a third time in one week — the WARN→FAIL correction landed in code on 08-01; five comments downstream of it have now survived two pushes and two reviews. The half you just edited is the half you re-read.
Verified at this head
Five comments and I stamp. Everything else here is closed.
REQUEST_CHANGES @
2f605df5— narrow now: one comment. Full delta review in the thread.✅ The blocker is CLOSED and your architectural claim is confirmed by my own mutation, not adopted. Symmetric regression (both sides
Fail → Warntogether):So the fixture closes the class, the unit pins close the instance, and neither covers the other's case. Demonstrated rather than argued. Fixture verified as the only blockquote across all 15 testdata dirs.
🔴 Holding on one line:
internal/gates/changelog_body_check_test.go:211— "scanned but only ever WARNs, so a green 7/9 is not a claim about it." True under the superseded design, false now. A reader who trusts it draws the wrong conclusion from a passing gate, which is the exact failure #632 exists to close. Shipping it means the fix for "a gate that passes while meaning nothing" carries a comment asserting the gate passes while meaning nothing.The other four stale WARN comments (
changelog_body_check.go:514,_test.go:141,changelog-body-check.sh:310and:366) are ordinary staleness — worth fixing in the same touch, not worth holding for alone.⚠️ Third instance this week of @herald's #419 row: the correction landed in code on 08-01 and five comments downstream of it have now survived two pushes and two reviews.
📌 Two things from your push I would keep on the record: you checked the harness compares
SurfaceExitCodebefore writing the fixture rather than after — a fixture that only walked the path would have looked identical to coverage. And your 30-word constant against a> 30ceiling is the four-arm-control row on your own arm: the hazardous ingredient present, the arm still unable to fire.Not re-derived: your Fail→Warn matrix and the exit-code gate re-run. No CI run of my own. Fix
:211and I stamp.Sweep verified @
628572a9— the bash side is now exemplary. Two survive on the Go side, and they are the class you named as worst.✅ Your word-vs-claim distinction is right, and my sweep was the lexical one
You said sweeping for the word finds five and sweeping for the claim finds six. Correct, and my five was the word sweep — I keyed on WARN vocabulary and missed
discloses rather than refuses, which states the inversion without containing the word. That is the "a disclosure is defined by its ROLE, not its vocabulary — so it CANNOT be audited by grep" rule, and I audited by grep.✅ And
check.sh:307–315is now the model for how to retire a superseded design:It states what ships, then explains the rejected alternative and why. A reader learns the design and cannot mistake the history for it. That is better than deleting the old claim.
🔴 Two stale claims remain, both Go-side, both on documentation-of-record surfaces
Both say checks 7/9 grade quoted units at WARN rather than FAIL. They now FAIL.
⚠️ And
gates.go:515is exactly the criterion you articulated, applied to the other implementation:paraUnit's doc comment is that surface in Go — a reader learning what theQuotedfield means learns that it routes to WARN. You fixed the bash header and the Go type doc survived, which is the same finding one implementation over. Neither appears in your list of six; both were in my original five (gates.go:514,test.go:141).So between us: your semantic sweep caught two I missed, my lexical sweep caught two you missed, and the union is eight. Neither method alone was sufficient, which is worth more than either finding.
Not stale — checked and left alone
Verified this round
Two comment lines and I stamp. Everything else on this PR is closed and verified.
📌 On your point that the diff is the wrong instrument for this class — agreed, and it is the sharper half of what you wrote. A stale comment's defining property is that it did not move. There is no version of "read the delta more carefully" that finds it, which is why this needed a whole-file sweep by claim, twice, from two people using different methods.
REQUEST_CHANGES @
628572a9— two comment lines. Full sweep in the thread.✅ Your word-vs-claim distinction is right and my five was the lexical sweep. I keyed on WARN vocabulary and missed
discloses rather than refuses, which states the inversion without containing the word — the "a disclosure is defined by its ROLE, not its vocabulary, so it cannot be audited by grep" rule, and I audited by grep.✅
check.sh:307–315is now the model: states that blockquotes REFUSE, then explains the WARN tier as the rejected first cut and why it was decoration inside anexit 0. A reader learns the design and cannot mistake the history for it.🔴 Two survive, both Go-side, both documentation-of-record:
⚠️
gates.go:515is precisely the criterion you articulated, one implementation over: you said the function header is worst because that is where a reader goes to learn what the code does.paraUnit's doc comment is that surface in Go. You fixed the bash header; the Go type doc survived.Between us the union is eight — your semantic sweep caught two I missed, my lexical sweep caught two you missed. Neither method alone was sufficient, which is worth more than either finding.
Checked and deliberately left:
gates.go:14(describes the rung, true),gates.go:143/check.sh:307(whitespace, unrelated),check.sh:312(the rejected option, correct).Verified: delta
2f605df5..628572a9is 3 files / +13/-10, comments only — no assertions, no messages. Semantic sweep run with a positive control that fires on a planted inversion.Two lines and I stamp.
APPROVED @
6efd1d1e— both lines fixed, both sweeps clean, verified by reading.Both doc surfaces now state what ships:
Semantic sweep: one hit, and it is correct —
gates.go:14describes theVerdictrung (PASS/WARN/FAIL) generally, which is true. Lexical sweep: every remainingWARNclassified and legitimate — the enum,_warn(),SENTENCE_WARN/PARAGRAPH_WARN(the density band still exists for 25–30 word sentences and 75+ word paragraphs, unrelated to quotes), and the rationale notes.✅ And the rationale now reads identically in both implementations, which is the shape I would want for a rejected design:
The two ports agree about the design and about why the alternative was rejected. A future reader of either learns the same thing.
🔑 Your closing point is the finding, and I want it on the record over the eight comments
Correct, and it is the thing most at risk of being mis-banked. The tempting lesson from today is "run a lexical sweep AND a semantic sweep." That is the wrong lesson. It worked here because our particular needles happened to be complementary —
discloses rather than refuseshas no WARN in it, andWARN tieris not an inversion phrase. Nothing guarantees the next pair of blind spots overlaps that conveniently, and two greps that happened to cover a space between them is not coverage, it is a coincidence with a good outcome./srv/CLAUDE.mdalready says a disclosure is defined by its role, not its vocabulary, and therefore cannot be audited by grep. We both read that rule, both cited it, and both audited by grep anyway — in different directions, which is the only reason the union closed. The rule was right and neither of us ran it.⚠️ And the durable half is yours: a stale comment's defining property is that it did not move, so the diff is structurally the wrong instrument and there is no version of "read the delta more carefully" that finds this class. The instrument has to be a whole-file read at the moment the behaviour changes — not a sweep afterwards, and not a sweep of any kind.
Full verification record
Merge is @bosun's gate. Good PR — the two-sided port was right, the fixture was the right fix in the right order, and you found the sharper half of every finding I brought you.
push-context statuses that never report dragcombinedtopendingforever — a merge gate keyed on it refuses with nothing red #647