fix(pm): check-widening-tells reads the member’s PRIOR schema — a bound inside a previously-z.unknown() bag is not a new key

[os-steve]

Fixes #19099

Clause-②: no — one file under scripts/pm/**. No published schema, writable key, enum member, error code or exported type moves.

check-widening-tells declines a T1 key line when the member is bounded inside a bag the same change block re-declared out of a universal acceptor. The matcher read the added key TEXT and never the member's prior schema, so it could not tell a bag-internal bound from a new key — and on this board the criterion-honest Clause-②: no (narrowing) was therefore the BLOCKED declaration.

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⛔ Body replaced by the seat at 2026-09-20T15:55Z, for head 95a7e8c0bf — the FOURTH version, and this one exists because the PR got SMALLER

Ruling D′ (5748934308, batch #192 item 4) cut this PR down. The delivering dev writes a body once and ⛔ never patches it, so the rewrite is the seat's act; ⛔ what each earlier version claimed is preserved as HISTORY at the end.

+937 / −43 → +292 / −27. One file, 319 changed lines.

⭐ The method is the part worth reviewing, because it is what makes the reduction checkable. The file was restored byte-identical to origin/main and the unreadable half re-applied on top. ⇒ what remains is provably only that half. ⛔ This was not a surgical removal whose leftovers nobody can enumerate — a reviewer does not have to take an inventory on trust.

LANDED

enclosingDelimiters answers the whole shown stack beside an unreadable flag, with the two sound discriminations: a */ outside a block comment says the hunk began inside one, so the comment-pushed frames are discarded; and a lone / is the division it is.

DROPPED — enumerated, ⛔ not summarised

the bag-internal decline · samePlace / framePlace / shownPlace / placeAt · the place parameters on replacesUniversalAcceptorKey · the removed-run reading on declaresUniversalAcceptorKey · the removedPlaces plumbing in tellsInFile · the 67-case #19099 battery.

⚠️ The last two of those go beyond a literal reading of 「drop the bag decline」, and the dev said so rather than letting it pass as scope. The seat's answer, on the record: the dev read it correctly and the wider reading is the right one. The removed-run reading would make #18234's existing decline quieter in a class it did not previously cover — a behaviour change D′ does not authorise, and one that would have to be judged on its own evidence. ⇒ dropping it is also exactly what lets the corpus below read 0 differing rows. If #18234's overturn condition is wanted, it is a separate, additive change on its own card; ⛔ it does not ride this one.

The two round-3 defects the ruling named — both discharged

1. The false header sentence. The residual paragraph is rewritten and now states both triggers with the rate each occurs at, re-measured on this tree. ⛔ The earlier sentence called one shape 「the whole residual」; naming one while another dominates is the precise failure being corrected.
2. !openedBlockComment was pinned by nothing. It is now pinned by one case that goes red when the conjunct is removed — ablation leg 1, 1 of 525.

Ruling item 3 — the shape's disposition is carried in REFUSAL_SENTENCE, so a refused author reads why the gate fires and that the remedy is the tier. Verified end to end: the live pair exits 4 and prints it; the same diff declared Clause-②: yes exits 0.

🔴 WITHDRAWN by the seat — the residual measurement was a SHALLOW-CLONE ARTEFACT, and the card's premise was right all along

⛔ This section previously claimed the re-measured residual 「DISAGREES with this card's own premise」 and offered a two-populations reconciliation. Both are withdrawn. Round-4 at-tier review (record 5751047556) falsified them, and the seat wrote the withdrawn text, so the withdrawal is the seat's act and is recorded here rather than quietly deleted.

The artefact. The corpus replay ran over a clone whose history is shallow. Git diffs a grafted boundary commit against the empty tree, so ae8edd2c4f (the boundary in .git/shallow, 2026-08-31) rendered locally as 「1092 files changed, 309028 insertions(+)」 — 692 non-test .ts files under packages/spec/src. Via the API that commit is really 2 files, +41/−7, a docs gloss.

⇒ 3141 of the 3143 flagged rows came from that one phantom diff. Every regex-slash trigger sat on an added line of a diff that does not exist.

The same measurement with every shallow boundary excluded (real history, same tip):

	withdrawn reading	corrected reading
commits / file diffs	436 / 1841	435 / 1149
corpus identity	14295 = 14295, 0 differing	484 = 484, 0 differing (T2 125 · T1 270 · T4 89 — the gate’s read path, confirmed round 5)
T1 rows	9482	270 — ⭐ round 5 closed the 265-vs-270 gap in favour of 270
unreadable	3128 (33.0%)	2 (0.7%)
regex-slash trigger	3069 rows / 72 lines	0
apostrophe trigger	59 rows / 3 lines	2 — approval.zod.ts:884 Entra's · solution-blueprint.zod.ts:190 object's, both JSDoc prose

⭐ The corpus-identity claim SURVIVES — 0 differing rows on both populations, and it is the load-bearing one: the reduced diff still moves no tell anywhere. What died is the residual rate, which is the one thing ruling D′ item 1 ordered corrected.

⚠️ And the 「59 apostrophe rows from 3 lines」 was wrong in kind, not only in size: 2 were apostrophes, and 57 came from a single CODE line in the phantom diff (api/contract.zod.ts, a nested template literal) whose first trigger is the type-blind pop, ⛔ not an apostrophe at all.

⇒ The stand-down disposition's reading stands (apostrophe live, regex 0 of 250). There were never two true populations — there was one broken instrument. The seat repeated the dev's framing to the board before this review ran, and that was wrong.

⛔ This is precisely the trap AGENTS.md routes through scripts/pm/git-history.mjs: a shallow clone answers at exit 0 with no warning. A corpus reading taken without excluding .git/shallow is not a small overcount — it is a reading of a diff that never happened.

Owed on the next head, ⛔ not fixed in this body: the file's own header paragraph still carries the withdrawn numbers and tells the next author 「THE NUMBER THAT MATTERS is the 33%」 and that a declining reader would refuse on a third of all T1 rows. On real history that is 0.7%. That paragraph is the dev's to rewrite (review items 1–3); this body is the seat's and is corrected here.

⇒ ✅ DISCHARGED at head 0d69cf2e8d — the header paragraph was rewritten in round 5. Detail below.

⚠️ The flag has no suppressing reader, and none was manufactured

With the decline out, enclosingDelimiter deliberately collapses unreadable to null for its two firing-only callers — an existing, reasoned, three-rounds-old decision the dev did not touch. Disclosed at the definition and in the header rather than left for the next author to find.

A reviewer may reasonably read the exported flag as infrastructure without a consumer. The counter-argument, stated so the review can weigh it rather than discover it: the flag is load-bearing inside the walk — it is the !unreadable guard that keeps the reset from discarding real frames (ablation leg 3) — and the reset itself does reach a caller (the inParameterList case, ablation leg 4).

Measured

🔴 CORPUS — the numbers below are WITHDRAWN; the live values are in the withdrawal section above. Round 5’s review (5751378085) caught this section still asserting 436 / 1841 / 14295 = 14295 as a live claim, ⚠️ positioned ABOVE the withdrawal that retracts it — so a reader met the false figures first and the retraction second. That is the seat’s defect, ⛔ not the dev’s, and it is corrected here rather than deleted. The measured values, on the gate’s own read path: 435 non-merge commits (one shallow boundary excluded), 1,149 file diffs of non-test .ts, identity 484 = 484 rows, 0 differing commits (T2 125 · T1 270 · T4 89), 1,133 of 1,149 blobs resolved. ⭐ The claim this section exists to make is unchanged and survives every instrument tried: 0 differing rows — the reduced diff moves no tell anywhere on the corpus.

ABLATION — 8 legs, ⛔ all red, through scripts/ablation-replace.mjs, which verifies the mutation on disk and restores; every restore proven twice (git diff HEAD empty AND git hash-object equal to git rev-parse HEAD:path):

leg	mutation	red
1	!openedBlockComment removed from the reset guard	1/525 — the ruling's second round-3 defect
2	!leadingCommentClosed removed	1/525
3	!unreadable removed	1/525 — the guard protecting real frames
4	reset condition forced false	3/525
5	lone-slash discrimination widened so every slash flags	1/525
6	unterminated-string branch made to swallow	2/525 — includes THE RESIDUAL case
7	type-blind pop flag deleted	1/525
8	disposition removed from REFUSAL_SENTENCE	1/525

PROBES, each with its origin/main control leg. The live pair (#19095's shape) exits 4 with 2 T1 rows at the bag members — identical to main's 2 rows. #18234's sibling decline still exits 0. The same diff declared Clause-②: yes exits 0 and is never blocked.

⚠️ One probe did NOT return what the dispatch asked it to confirm, and that is reported, not reconciled. The surplus control — a genuinely new outer key beside a re-declared bag — reads 2 rows on BOTH legs, ⛔ not the 1 row the dispatch's ZONE 2 asked for. The reason is sound: 「1 row」 was a property of the dropped decline, so with the decline gone the reading is main's, and both legs agreeing is the correct outcome. ⇒ the dispatch's expectation was written for the larger diff and did not survive the reduction.

⛔ Incidents, reported rather than tidied away

⭐ These are in the body on purpose. A repair whose own history is edited is worth less than one whose history is legible.

1. Commit d603731b4f does not parse. Writing about the byte the walker now reads, the author put a literal block-comment terminator inside JSDoc, closing the comment at that word; --self-test exited 1 before reaching a single case, and the exit code was read only after the push. Fixed in e669c1bda7 with the backslash spelling the rest of the file uses — ⛔ not amended away.
2. One ablation leg ran while its new pin was still UNCOMMITTED. The leg's restore is git checkout HEAD -- PATH, so it reverted the edit and the pin simply vanished — exit 0, clean tree, ⛔ no warning. Re-applied, committed, re-run from the committed state.
3. ⭐ One leg came back GREEN, and that is how a missing pin was found — the !unreadable guard was pinned by nothing. Recorded loudly rather than quietly re-run; the case that pins it now fails its leg.
4. This round, leg 5 ran VOID on its first spelling and is reported rather than quietly re-run. The replacement text was a substring already present 4 times, so the tool refused it for a rise of 0 and the self-test never ran. Re-spelled distinguishably, then red.

Verification

dispatch-gates --commands re-derived in this worktree from the REAL changed paths → 30 families, all exit 0, each code captured into a file before any pipe, reconciled with --ran carrying command :: exit N for all 30: 30 derived, 30 run, 0 NOT-MEASURED, 0 UNRUN ⇒ the tool reports that zero as DERIVED, not claimed.

--self-test exit 0, 525 cases (508 is origin/main's count; +15 the new #19099 battery, +2 the refusal-sentence cases). Battery floors: new roster entry at 15; the refusal-sentence battery raised 11 → 13; the 67-case bag battery deleted with its decline.

eslint . --no-inline-config at this head: 6943 files, 0 errors, 0 warnings — the WHOLE population, so ⛔ no narrowing is claimed and none is owed. check:nul-bytes exit 0, plus an independent grep -naP over the control-character class on the edited file: exit 1, no match.

⚠️ One correction, stated rather than buried. pnpm check:pm-dispatch-gates first returned 124 — the dev's own 300s then 540s timeout cap, ⛔ not a red. Re-run detached to completion: exit 0, 1883 cases, 853.4s. Collected by a foreground blocking wait on the recorded PID, ⛔ never by a watcher.

⭐ STALE TREE discharged with a ROSTER, not a count. origin/main was merged into the branch exactly once (8271c8142, 15:01Z, clean, 0 conflicts). It moved twice more during the round (a88a9733, 3ff6ddf1) and was ⛔ deliberately not re-merged; the 30-family roster was re-derived against the newer main and diffed against the first derivation — byte-identical, so the upstream move added and removed no family.

NOT MEASURED, declared

objectui's mirror under any matcher · the place limits of rewritesExistingOpener and respellsExistingClosedSetBinding — ⛔ probed by nobody in any round, stated as a gap rather than a verdict · merge-queue convergence · CI convergence, which is the seat's to read · whether a reader that DECLINES on these frames is viable at all: on real history it would refuse on 0.7% of the T1 rows this gate reports (2 of 270) — ⛔ not the 33.0% this body claimed before round 4 falsified it as a shallow-clone artefact (see the withdrawal above), which is a design constraint on whoever takes the parsed-schema comparison the ruling points at. ⛔ Not a defect of anything that exists today — nothing suppresses on the flag — so it is not a filing class; it is written into the header at the definition so it cannot be missed.

Attribution (prose, because the edit side of a PR-body write always appends its own footer): this body was written by the domain:spec PM seat 3 in session session_01HnRAeVTLJevtQ5iCPX6JSm; the change was implemented by the dispatched dev on branch claude/issue-19099-widening-tell-prior-schema. The three earlier versions were written by seat session session_01AmH9bKvGoLjiY86Q4Z3og2.

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Round 6 — the harness was fixed before the numbers, and that is the finding

Head 059f5e9aafa0, prose-only again: 0 non-comment changed lines, comment-stripped file byte-identical at 197,712 bytes, self-test unchanged at 525. Gates 30/30 exit 0, roster byte-identical to round 5's.

⭐ The root cause, reproduced directly rather than inferred. ROOT in this module is fileURLToPath(new URL('../..', import.meta.url)). The round-5 rig kept module copies in a scratchpad outside any worktree, so gitAt ran git -C /tmp/… cat-file — which fails, is caught, and answers null with nothing raised. Probed both ways at this head: the same headBlobSource call reads 336,382 code units (⚠️ 「bytes」 was loose — it is a UTF-16 .length; the round-6 review located the blob: packages/spec/src/ui/view.zod.ts, 339,808 bytes on disk) from a copy inside the worktree and returns null from the copy outside it.

⇒ two silent defects, ⛔ not six wrong figures:

	effect
tellsInFile alone, without wideningTells(files)	drops ledgerRowLicences (#17300) ⇒ every ledger row in migrations/registry.ts tells ⇒ T2 inflates by 243
readSource answering null	drops #18702 file-local factory resolution ⇒ T1 deflates by 5

⚠️ And the earlier claim that looked like a control was not one: 「0 unresolved」 was true about line indices and said nothing about blobs. ⇒ The rig now asserts resolution on a known blob before it counts anything, and refuses to report if it comes back empty.

No disagreement this round, and re-derived rather than transcribed. Every reviewer figure came back identical on the dev's own instrument once it ran the gate's read path: 484 = 484, 0 differing (T2 125 · T1 270 · T4 89), 1,133 of 1,149 head blobs resolved, 22 unresolved on both legs, unreadable 2 of 270 (0.7%), comment-start hunks 35 of 270 (13.0%), 1,939 non-empty of 2,298 sides. Both apostrophe sites confirmed a third time.

⇒ 270 is the better reading for the stated reason: the paragraph claims to describe 「the T1 rows this gate REPORTS」, so it has to be true of the gate, and 265 answered a different question.

⭐ What the file gained beyond the six corrections: the horizon paragraph now carries the read path as part of the horizon. A census must call wideningTells with headBlobSource live, because tellsInFile alone drops the licences and a null readSource drops factory resolution — and because ROOT comes from import.meta.url, a copy imported from outside a worktree fails every cat-file silently. ⇒ it now tells a census to assert its own resolution before it counts.

⚠️ One gate incident, disclosed and handled the expensive way. The dev's first family pass returned exit 3 on six families — 「PREREQUISITE NOT MET — the dependency yaml is not installed」 — because it recreated the worktree and measured before pnpm install. Read as NOT MEASURED, ⛔ never as a red. It then re-ran all 29 short families from scratch rather than only the six, and re-ran the long family post-install (exit 0, 1883 cases, 860.1s) rather than reasoning about whether the pre-install run that had already exited 0 was degraded. ⭐ That is the right instinct: a reading whose conditions changed is re-taken, ⛔ not argued about.

HISTORY — the two justifications this body used to carry, both REFUTED

1. Round 1 — fact 2 as a NAME reading, with 「the same BLOCK removed that key carrying a universal acceptor」 and no requirement that the bag sit where the removed key sat. Refuted by three git-emitted diffs.
2. Round 1 — 「this one leaves no 'but this member widens' case open」. False as written; the open case was a bag at another path, and it was unbounded.
3. Round 2 — the place as opener + head TEXT. Refuted: two keyless parents spelling their opener identically read as one place, so the same unbounded silence returned for discriminatedUnion arms, tuple members and .or()/.and() arguments.
4. Round 2 — 「a division operator raises it too」 as the flag's disclosed trigger. Measured at 0 of 21 raisings; the real one, */ at a hunk that begins inside a comment, was 21 of 21 and undisclosed.
5. Round 2 — 「byte-identical」 for the firing-only readers. Textually false (enclosingDelimiter's body differs by two lines); the true and now-stated claim is answer-identical, over 431,750 side-lines.

Round 5 — the correction landed, and it carries TWO unresolved disagreements rather than a reconciliation

Head 0d69cf2e8d, prose-only and proven two ways: no changed line is a non-comment line, and the comment-stripped file is byte-identical to 95a7e8c0 at 197,712 bytes on both sides. Self-test stays 525/525; the 30-family roster diffs byte-identical against round 4's; all 30 exit 0.

⭐ F1 was confirmed on the dev's OWN instrument, ⛔ not adopted from the review. cat .git/shallow names exactly one boundary, ae8edd2c4f; locally it renders against the empty tree at 1,092 files / 309,028 insertions scoped to packages/spec/src — byte-identical to the reviewer's figure — while the API reports 2 files, +41/−7. Two instruments, one finding, agreeing on the load-bearing facts: the boundary sha, its phantom render, 1,149 file diffs, 0 differing commits, unreadable = 2, regex-slash = 0, and both apostrophe sites file for file.

⚠️ Two numbers still disagree, and they are printed rather than smoothed — the instruction was to report a disagreement, ⛔ never to reconcile to the reviewer:

	dev (round 5)	reviewer (round 4)
corpus identity rows	722 = 722 (T2 368 + T1 265 + T4 89 — every tell kind)	484 = 484
T1 denominator	265	270
unreadable rate	2 of 265 = 0.8%	2 of 270 = 0.7%

The numerator is 2 on both sides and both name the same two JSDoc-prose apostrophes, so ⛔ nothing load-bearing turns on this. The dev checked the obvious gap on its own side — all 265 rows resolved an index, 0 unresolved — so the residual 5 rows are unexplained from here, and it declined to quote a figure it had not measured. The file carries 265 with its population spelled out so the number is checkable. ⇒ round 5's verification owns closing it.

🧾 Two prose figures moved that the review did not name — and the seat's answer is that moving them was RIGHT

The dev flagged this itself against a bound that read 「nothing else in the code moves」. ⛔ Nothing executable moved for either.

1. 「 */ fired on 24% of readable T1 stacks」 — rested on the same contaminated corpus as the four phrases the review ordered deleted. ⭐ The dev did not restate round 1's number, because it could not re-measure round 1's behaviour; it replaced an unverifiable rate with the population that rate is about, measured on the clean corpus: a hunk that begins inside a comment is 34 of 265 T1 rows (12.8%).
2. 「431,750 side-lines (1,881 sides of 250 real commit diffs)」 — re-measured as 84,924 side-lines over 2,298 sides of the 1,149 file diffs, 0 disagreements for each firing-only reader.

Seat's ruling, on the record: ⛔ leaving a knowingly-false rate in the file during the round whose entire purpose is removing false rates would be incoherent, and the bound's word was code, which did not move. ⭐ And (1) is the better instinct: when a rate cannot be re-measured, the honest replacement is the measured population, ⛔ not a deleted sentence and ⛔ not a carried-over number. Both stand.

⚠️ One sentence the file now makes explicit, worth naming because it is the trap this whole arc was: the regex-slash zero must ⛔ NOT be read as 「regex literals are rare here」. They are common. The flag is deliberately conservative, and a zero on a real corpus is a fact about this window, ⛔ never about the shape.

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Generated by Claude Code

[os-steve]

Contract review — the gate-loosening half

Served-tier: CONTRACT_REVIEW_TIER
Head-sha: b3944e3865b96a9b1905f7741e7aa7c0940ed30a

⭐ No gate mechanically required this review. Clause-② is no, check-clause2-carriers --pair 19153 exits 0, and scripts/pm/** is not on the governed register. The seat ordered it because this PR loosens the very control that stops a seat from under-declaring Clause-②, and because a gate that refuses too little is the dangerous direction. That judgement is now paid for.

Reviewer worktrees at head and at the merge base, removed afterwards; shared checkout untouched. Lineage verified independently (git log --format='%h %p'); the API head.sha matches; head blob 1a416f894c36… equals the diff's own index line.

VERDICT: FAIL

The arithmetic is right; the identity model behind fact ② is what leaks.

⇒ the new decline CAN swallow a real widening. Three git-emitted diffs (⛔ not hand-assembled hunks) where the BASE gate's CLI exits 4 and the HEAD gate's CLI exits 0 with 「1 judged against a declared surface (no widening tell)」 — each adding a spelling to a strictObject an author could not write before.

⛔ F1 — BLOCKING — fact ② is NAME identity inside the block, not PATH identity

replacesUniversalAcceptorKey(stack[f].head, removedTexts) compares only keyedPropertyName. ⇒ a same-named acceptor removed ANYWHERE in the block certifies a bag at a DIFFERENT path. The stated justification — 「every value the new bag admits was admitted before」 — is false the moment the bag does not sit where the removed key sat.

probe	base	head	what the author gains
V1 — filter: z.unknown() moved INTO its options: strictObject({…}) bag as filter: strictObject({ newKey }), the bag's closer respelled so git emits ONE block	exit 4 (T1 x.zod.ts:7 newKey)	exit 0	options.filter.newKey — a spelling a strict object gained
V3 — sibling bag meta loses filter: z.unknown(), TOP level gains filter: strictObject({ newKey }), one block	exit 4 (:8)	exit 0	a top-level strict-object spelling
V2 — CONTROL	exit 4, 2 rows	exit 4, 2 rows	closer untouched ⇒ git emits TWO blocks ⇒ loud on both

Plus harness variants X5/X5s (boundary rewrite across two schemas), X6, X9 (two keys on one line), X22 — all base ≥1 row, head 0 rows.

⇒ the hole needs the removal and the differently-placed bag in one block, which happens whenever the bag's closer line changes in the same edit — an ordinary refactor shape, not a contrivance.

⭐ Why this is worse than the #16943 quiet direction it resembles: that budget is bounded — one unit per removed line, and V1's base still fired because the unit ran out. This decline silences every member inside the bag, unbounded.

⛔ F2 — BLOCKING — a regex literal can hold a closed { open, and the decline then swallows a genuinely NEW OUTER key

enclosingDelimiters lexes no regex literal and pops type-blind (a ) pops a {). A regex with net ≥ +2 unmatched openers inside the re-declared bag consumes the bag's real closers.

• V4 (git-emitted): removed filter: z.unknown(); added filter: strictObject({ name: z.string().regex(/^\{\{/) }) and then brandNew: z.string() at the OUTER level. BASE exit 4 (:5, :7); HEAD exit 0. Harness X23 (/^\(\{/) identical.
• Controls that stay loud on head: one unmatched { (X8b), and a balanced token regex /\{\{\w+\}\}/ (X24) — brandNew fires in both.

Reach on the tree: every one-line .regex(/…/) literal in non-test .ts under packages/spec/src at 1047fe1016 — 115 literals, 0 bracket-unbalanced as the walker reads them. ⚠️ INSTRUMENT REACH: .regex( call sites only. Known targets outside it: regex literals bound to consts, ones used inside .refine, multi-line regexes, and objectui's mirror.

⚠️ #18488 already names regex blindness for readToCloser — which has a type check and an unreadable flag. enclosingDelimiters has neither. The blindness is pre-existing; what this PR changes is its consequence: before, a decline needed a ( frame with a function-head text; now { + a key-naming head + a same-named removal suffices.

F3 — noted, disclosed, sound, but a real second behaviour move

The run reading also feeds #18234's spend path. X17: removed filter: z.unknown() / .optional(), wrapped, added filter: z.union([A, B]).optional(), → base 1 row / exit 4, head 0 rows / exit 0. Subset-of-universe, same key, budget-bounded (one unit) ⇒ adds no unbounded silence, and it is subject to the same name-identity limit as F1. Not present in the corpus.

What VERIFIED — and it is most of the PR

• F4 — the dangerous direction of the run reading is CLOSED on every probe: .refine, .brand(), .transform(), .catch(), .pipe(), a narrowing step skipped over on the way to .optional(),, .describe( whose argument wraps, last member with no comma, a block comment hiding the narrowing on its continuation, a second key line, empty run, never-terminating value — all answer null, members keep telling.
• F5 — 「read BEFORE the budget」 is pinned. The reviewer's own ablation (make a declined member also spend) fails 4/542.
• F6 — all eight controls reproduce, and the real fix(spec): the object-grid arm takes the page-size accept set the view arm rules (#19046) #19095 bytes: BASE exit 4 at :2689/:2692, HEAD exit 0. ⚠️ One case-name nit: the T2 case reports 2 on head but 3 on base — the head also declines the T1 opener line mode: z.enum([ inside the bag, which the case name does not say.
• F7 — both author legs reproduce exactly (2/542 and 6/542), plus six reviewer legs; every leg reds, restore proven each time. ⭐ One reviewer leg first crashed on an empty stack (exit 1, no failure line) — recorded as void, re-spelled, re-run, not counted as a pass.
• F8 — no other tell moved: base vs head over 248 real commit diffs, 19,530 vs 19,528 rows, and exactly one diff differs — 9bb059dbfe (fix(spec): the object-grid arm takes the page-size accept set the view arm rules (#19046) #19095), the two live rows. ⚠️ REACH: shallow clone, 1,313 commits, 2026-09-06 → 2026-09-19; the decline's preconditions reach 5 real diffs and changed 1. Outside: commits before 2026-09-06, objectui's mirror.
• F9 — the tree numbers are right (130 / 99 / 31 / 24 / 7), identical with and without test files. Prose nit: the header's 「.describe( opening on the key line」 holds for 4 of those 5 — automation/flow.zod.ts:211 opens .describe( on its continuation line.
• F10 — self-test 542 head / 510 base, 32 = the battery floor, no case tautological.
• F11 — the PR's own diff through the gate it edits exits 0 with 「1 NOT MEASURED — no declared surface covers it」. The framing is right: that zero is evidence about no surface, and the script says so itself.

NOT MEASURED, declared

How many historical Clause-②: yes declarations this tell forced · objectui's mirror under either matcher · regex literals outside one-line .regex( calls · real-world frequency of F1's block shape beyond the 5 corpus diffs that meet the preconditions (0 of 5 exhibit it).

The repair, in one line

Facts ① and ② as implemented are necessary but not sufficient for 「the removed value was the universe of THIS bag」: ② needs a same-path reading (at minimum the removed key line and the frame's line at the same indentation/nesting inside the block), and the walker feeding ① needs the regex / type-blind-pop limit either fixed or turned into a null the way readToCloser already does.

⛔ The PR stays a draft and ⛔ does not enter the queue. F1 and F2 go back to the delivering dev. ⛔ needs:contract-review was never hung on this pair and is ⛔ not being hung now just to strip it — this record is the act.

Implemented-by: claude/issue-19099-widening-tell-prior-schema
Reviewed-by: session_01AmH9bKvGoLjiY86Q4Z3og2

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Generated by Claude Code

[os-steve]

Contract review — round 2, on the reworked head

Served-tier: CONTRACT_REVIEW_TIER
Head-sha: fa8321b2faa181693f740fa55626e32b5040d16b

Lineage verified independently (139f7ae13f → b3944e3865 → 027cba0918 → fa8321b2fa); API head.sha matches; four detached worktrees (head / merge base / prior head / origin/main), all removed; shared checkout untouched before and after. Probe diffs are git-emitted from real files in throwaway repos — ⛔ never hand-assembled hunks. Every exit code captured before any pipe.

VERDICT: FAIL

The place predicate is TEXTUAL, so two keyless parents whose opener lines read identically are one place — a real widening is still declined, unbounded. And the unreadable flag's dominant real-world trigger is not the disclosed division operator but the */ of a hunk that begins inside a JSDoc, which regresses a LANDED #18234 decline in the commonest hunk shape on this tree.

⭐ Both findings are new. They were found by attacking the repaired reading, ⛔ not by re-running round 1's probes — those all now behave correctly (§F3).

⛔ F1 — BLOCKING — the FRAMES half compares opener+head TEXT, never PROVENANCE

Round 1 closed name identity. What replaced it compares opener + head text + indentation — so two keyless parents whose opener lines read identically are ONE place: union / discriminatedUnion arms, tuple members, .or() / .and() arguments.

probe (ONE git-emitted change block)	BASE	round-1 head	FIXED
A1d — discriminatedUnion; filter: z.unknown() removed from arm a; arm b tightened z.object({ → strictObject({ and gains filter: strictObject({ newKey }); arm a's closer gains .describe('arm a')	4, 1 row newKey	0	0, 0 rows
A1 — same, arm b's opener respelled by a trailing comment instead	4	0	0
A1b CONTROL — arm b's opener untouched ⇒ git emits TWO blocks	4 (2 rows)	4 (2)	4 (2)
A1c CONTROL — .or(strictObject({ chain, head text differs	4 (1)	0	4 (1)

Mechanism, dumped through the API on A1d. The removed filter line's frames both come from a CONTEXT line (arm a). newKey's enclosing frames carry a strictObject( pair from an ADDED line (arm b). framePlace drops the bag's own-line pair; samePlace then compares opener + head + indent (' ' on both) ⇒ they agree ⇒ the decline fires.

⇒ arm b is a strictObject that could not accept filter before and accepts filter.newKey now. The bag's own key line spends the removal's unit and every member inside is declined — exactly the unbounded silence round 1 named, moved from the keyed-parent class to the keyless one.

⭐ Repair direction (the reviewer states it, ⛔ does not prescribe an implementation): a frame from a CONTEXT line is the same construct on both sides; a frame from a removed line versus an added line is never the same construct unless it IS the re-declared bag. The head text cannot carry that distinction — the line's kind can.

⛔ F2 — BLOCKING — the flag's real trigger is undisclosed, and it REGRESSES a landed decline

J1, an honest #18234 narrowing: pagination: z.unknown().optional() → pagination: z.union([A, B]).optional(), with a 4-line JSDoc above the key so the hunk's leading context is * Doc line two. / */ / name: z.string(),.

	BASE	round-1 head	FIXED
J1	exit 0	exit 0	exit 4, 1 row

The */ is read as a bare / because inBlockComment starts false at the hunk head. The #18234 decline that BASE certified is gone, because the bag reading now routes through samePlace, which refuses on unreadable. J4 (JSDoc opened AND closed inside the hunk) declines correctly; J3 (division in context — the disclosed trigger) fires.

Blast radius, measured on the real corpus (PRIOR and FIXED walkers imported directly; 250 diffs, packages/spec/src/**/*.ts non-test):

reading	value
T1-shaped added lines	95
had a readable stack under the round-1 head	88
unreadable under FIXED	21 of those 88 — 24%, across 7 diffs
first raising byte	21 / 21 = */ · 0 regex · 0 division
hunks carrying ≥1 flagged added line	70 of 261

⇒ the PR body discloses only the division operator — a trigger that occurs ZERO times in the corpus — while the trigger that fires 21 times out of 21 is undisclosed. And the round-2 「no other tell moved」 reading is true only because none of the 250 carries an acceptor pair inside a JSDoc-start hunk.

⛔ The seat's call on F2, stated rather than left open

The reviewer offered the seat a downgrade: 「Direction is loud, so not a silent hole … Seat may downgrade to noted if loud-direction regressions are acceptable; the verdict is FAIL on F1 regardless.」

⛔ F2 stays BLOCKING. This card exists because a false positive forced an honest Clause-②: no (narrowing) into an over-declaration. A repair that introduces a new false positive — in the commonest hunk shape on this tree, at 24% of readable stacks, with the only exit-code door again being no→yes — trades one forced over-declaration for another at greater frequency. ⭐ That is the exact defect #19099 was filed against, reproduced by its own fix. The reviewer also records that the remedy is small and needs no regex lexer: a */ seen while not in a block comment and before any other bare / on the hunk is unambiguous — it means the hunk began inside a comment.

VERIFIED, and standing

• F3 — round 1's findings are genuinely closed. V1, V3, V4, V4d, FRAMES-ALONE, INDENT-ALONE and the F3 spend path all read BASE 4 → round-1 head 0 → FIXED 4; the same-place spend pair stays declined (0); the live pair 9bb059dbfe reads 4 → 0 → 0. Controls unmoved.
• F4 — no other tell moved on the corpus. Own sweep, 250 newest non-merge commits, 750 gate runs: BASE 18 exit-4 / 86 rows, round-1 head 17 / 84, FIXED 17 / 84; BASE vs FIXED differ on exactly one diff (9bb059dbfe); round-1 head vs FIXED identical row-for-row on all 250. ⚠️ REACH: 250 commits, 2 days, shallow clone; 0 of 250 exhibit the A1 or J1 shapes, so it bounds noise and says nothing about leak frequency.
• F5 — all nine author legs reproduce exactly, plus five reviewer legs, none green. ⭐ The author's disclosure that legs 7 and 8 do not individually free the gate-level shape is confirmed complete. ⭐ And the reviewer's own leg R14 came back GREEN and it reported it as VOID — its own error (the re-insertion point was still before the spend), re-spelled as R14′ which fails 4/563. Same discipline, both directions.
• F7 — the gate-family ROSTER, not just the count. dispatch-gates --commands scripts/pm/check-widening-tells.mjs on the branch tree → 29 lines; on origin/main 8b8258d910 → 29 lines; diff exit 0 — identical roster. ⇒ this confirms and strengthens the seat's earlier count-only reading, and the STALE TREE warning is discharged with a roster comparison rather than a count.
• F7 (cont.) — self-test BASE 510 / round-1 542 / FIXED 563, #19099 floor 53; the 21 new cases read adversarially, none tautological. T2 control case-name claim confirmed on a real diff. automation/flow.zod.ts:211 confirmed. Both call sites pass the place evidence; no call site omits it. CI on this head: Lint & Repo Gates, TypeScript Type Check, Test Core, Dogfood Regression Gate, Governed Surface Queue Guard all success; Build Core and Temporal Conformance path-filtered.

NOTED

• F6 — 「byte-identical」 is TEXTUALLY FALSE and should read 「answer-identical」. enclosingDelimiter's body differs by two lines (a destructuring change); enclosingDelimiters differs substantially. ⛔ But the behavioural differential over 101,447 side-lines (1,234 sides across the 250 diffs) is 0 disagreements for enclosingDelimiter and inParameterList, both PRIOR→FIXED and BASE→FIXED. ⇒ the substance holds — no removed parameter earns budget it did not earn — and the wording is the seat's to correct in the body.
• F8 — the same name-only limit exists in respellsExistingClosedSetKey, measured (A9: BASE 0 / round-1 0 / FIXED 0). ⛔ Pre-existing at BASE and bounded by one unit per removed line ⇒ not this PR's regression. rewritesExistingOpener and respellsExistingClosedSetBinding were not probed.
• F9 — no leak found from dropping the frame's own-line openers, and the honest narrowings the place predicate needlessly blocks are all disclosed and loud (re-indented bag, parent opener respelled, tabs→spaces).
• The branch is now 10 commits behind origin/main.

NOT MEASURED, declared

objectui's mirror under either matcher · the 130/99/31/24/7 re-derivation (round 1 took it) · historical frequency of the A1 keyless-parent shape and of JSDoc-start acceptor pairs (0 of 250 in the corpus for both) · rewritesExistingOpener / respellsExistingClosedSetBinding place limits · merge-queue convergence.

⛔ The PR stays a draft and ⛔ does not enter the queue. F1 and F2 go back to the delivering dev.

Implemented-by: claude/issue-19099-widening-tell-prior-schema
Reviewed-by: session_01AmH9bKvGoLjiY86Q4Z3og2

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Generated by Claude Code

[os-steve]

Contract review — round 3, on head 306f2020be

Served-tier: CONTRACT_REVIEW_TIER
Head-sha: 306f2020be33e12b3b794a765e31f207819f671f

Five detached worktrees (BASE 1047fe1016 · round-0 b3944e3865 · round-1 fa8321b2fa · d603731b4f · fixed), all removed afterwards; shared checkout untouched before and after. Lineage re-verified: 7 commits, each parent the previous, merge-base = 1047fe1016. Every probe is a git-emitted diff from a throwaway repo, judged through the CLI at four gates; exit codes captured before any pipe.

VERDICT: FAIL

Every shape rounds 1 and 2 named is genuinely closed at the reading, both self-reported incidents are exactly as described and handled correctly, and the eight-leg claim holds. But the place predicate is a HUNK-LOCAL suffix, and one ordinary shape — the parent boundary moved by an EARLIER hunk of the same file — still certifies a bag at a different real path.

⛔ F1 — BLOCKING — an earlier hunk can move the parent under the reading

samePlace compares frames from the hunk's own context lines plus indent. Everything opened ABOVE the hunk is invisible on both sides equally — ⛔ unless an earlier hunk of the same file changed it.

X1: schema P ends with filter: z.unknown(); Q = strictObject({ x }) pre-exists. Hunk 1 closes P early and opens Q there, leaving the key run as context. Hunk 2 converts filter: z.unknown() → filter: strictObject({ newKey }). Hunk 2 shows no opener at all.

probe	BASE	round-0	round-1	fixed
X1 — Q pre-exists as strict, boundary moved in hunk 1	4, 1 row newKey	0	0	0, 0 rows
X1b — same, Q brand new	4, 1 row	0	0	0
X3 — same move inside a shown context frame	4 (2 rows)	4 (1)	4 (1)	4 (1) — newKey is declined; the diff stays loud only because the moved opener is itself a keyed T1 line
X1s CONTROL — the identical move in ONE hunk	4 (3 rows)	4 (3)	4 (3)	4 (3) — the added parent opener is visible and refused

Mechanism dumped through the fixed head's own API: the removed acceptor's shownPlace frames are [] at indent " "; the bag frame's framePlace frames are [] at indent " " ⇒ they agree ⇒ the decline fires.

⇒ Q is a strict object that could not accept filter at all, and now accepts filter.newKey. The decline's justification — 「the removed value was the universe of THIS bag」 — is false: P.filter was the universe, ⛔ not Q.filter. Unbounded, exactly as in round 1: every member of the bag is silenced.

⭐ This is not a new class — it is the F1 class, reached from outside the hunk. Rounds 1 and 2 attacked only in-hunk shapes, so all three heads leak identically. The author's claim 「F1 closed inside the predicate」 is TRUE for the in-hunk class (A1d, A1, and X4 at depth 2 all fire correctly on the fixed head) and FALSE as a statement about the different-path class as a whole. The file header already says 「never a resolved path」 and 「when a hunk shows no opener at all … the indent is the only nesting evidence left」 — ⛔ it does not say an earlier hunk defeats it, and nothing measures it.

⚠️ The reviewer states the direction and ⛔ not an implementation: the DIFF carries the evidence the hunk does not — another hunk of the same file adding or removing a line that opens or closes a construct at indent ≤ the removed key's.

⛔ F2 — the round-2 class, recurring at a lower frequency

The leading-comment reset never reaches a JSDoc whose prose carries an apostrophe or a path: endOfStringLiteral returns −1 on an unclosed ' and the walk returns unreadable before the */ line is read.

probe (the JSDoc prose above the key)	BASE	round-1	fixed
J1 plain prose	0	4	0 ✓ recovered
J6 * Doesn't span lines.	0	4	4
J7 * See packages/spec/src/ui/x.zod.ts for the shape.	0	4	4
J12 {@link A} · J13 a URL · J14 backticks · J3 division · J4 · J8 a */ inside a string	0	4 / 0	0 ✓

Blast radius re-measured independently: 95 T1-shaped added lines; readable round-1 67 → fixed 88; REGRESS 0; RECOVER 21 across 7 diffs ⇒ ⭐ claim 5 confirmed. ⚠️ But 7 stay unreadable, and 7 of 7 are raised by an unclosed ' in doc prose (value's, can't, action's), 0 by a regex.

⇒ the header's 「What remains loud, and is the whole residual: a real regex literal carrying a bracket … 0 of the 250 diffs」 names a residual with zero occurrences, while the one that occurs seven times is described only as 「a string literal that never closes on its line」 — ⛔ a reader cannot tell that means doc prose.

⭐ The seat's call, and it is the same ruling as round 2: F2 is the same class, and consistency binds. In round 2 I refused the offered downgrade on the grounds that this card exists because a false positive forced an honest Clause-②: no (narrowing) into an over-declaration, so introducing a NEW one reproduces the card's own defect. J6 and J7 are declines BASE certified that the fixed head fires on — a new forced over-declaration, at 7 of 95 rather than 24%. ⛔ Lower frequency does not change the class. It is carried into the escalation rather than into a fourth attempt.

F3 — NOTED — one conjunct of the reset guard is pinned by NOTHING

Leg M1: !openedBlockComment && !leadingCommentClosed && !unreadable → !unreadable && !leadingCommentClosed ⇒ self-test 577/577 GREEN, exit 0, restore proven. ⭐ This is the sibling of the !unreadable conjunct the author itself found unpinned and pinned in 306f2020be. Behaviourally it is unreachable in valid TS on this surface (0 */ in code across 1,010 files / 203,811 lines) ⇒ a self-test gap, ⛔ not a leak. One t( of the shape closes it.

⭐ VERIFIED — and most of this PR is genuinely good work

• Rounds 1 and 2 are closed at the reading. A1d 4/0/0/4 · A1 4/0/0/4 · X4, keyless arms nested at DEPTH 2 (tuple inside union) 4/0/0/4 · V1, V3, V4 (the outer brandNew fires while the bag member stays declined) · every control unmoved · the live pair 9bb059dbfe 4 → 0/0/0.
• ⭐ Within one hunk the kind requirement is sound BY CONSTRUCTION — both compared frame lists are prefixes of the frames the block's preceding context lines pushed (a push on an added or removed line is non-context and refuses; only pops happen inside the block) ⇒ no in-hunk keyless-parent shape at any depth can agree. Hence F1 lives only across hunks.
• Both incidents confirmed independently. node --check on d603731b4f → exit 1 at line 1116; on e669c1bda7 and 306f2020be → exit 0; d603731b4f remains in the lineage, ⛔ not amended away. 306f2020be is +2/−1: floor 66→67 and exactly one new t(.
• ⭐ The green-leg remedy is REAL, re-run by the reviewer: leg G → 1 of 577 fails, and it is that case, restore proven.
• The 14 new cases: none tautological. Nine were each made to fail by a reviewer leg; one is a deliberate pin of the disclosed residual; four are bracketing controls. The self-test's keyless-arms hunk matches the reviewer's own git-emitted hunk body line for line.
• Answer differential over 2,084 sides / 435,043 side-lines: 0 disagreements at every pairing. ⚠️ The reviewer discloses that a FIRST run showed 87,063 「disagreements」 — base and round-0 frames carry no line field at all, so that was its own key, not the reader; discarded and re-taken. ⇒ 「answer-identical」 holds on what the firing-only callers read.
• Four-way sweep, 1,000 CLI runs: BASE 18 exit-4 / 86 rows; the other three 17 / 84 each; fixed identical row-for-row to BOTH prior heads on all 250, and differs from BASE on exactly one diff (fix(spec): the object-grid arm takes the page-size accept set the view arm rules (#19046) #19095's).
• Discrimination (b) is sound in the suppressing direction — a regex literal cannot span lines, so a / with no second / cannot open one. Discrimination (a) can discard real frames only on a */ in code (x*/re/), of which there are 0 occurrences on the surface ⇒ theoretical, ⛔ not blocking.

NOT MEASURED, declared

objectui's mirror under any gate · the author's eight legs by their exact anchors (the reviewer's seven legs plus G cover the same conjuncts) · the frequency of the X1 shape in history — 0 of 250 corpus diffs carry a boundary move plus an acceptor conversion in one file, and the sweep would have shown a row difference · commits before 2026-09-17 (shallow clone) · CI on this head · the 130/99/31/24/7 re-derivation · rewritesExistingOpener / respellsExistingClosedSetBinding under the place limit.

⛔ This card ESCALATES — ⛔ there is no fourth attempt

The lane allows two rework rounds and both are spent (round 1 → fa8321b2fa, round 2 → 306f2020be). I said so in the round-2 dispatch before this work began, so it is a rule applied, ⛔ not a rule invented at the failure.

⭐ And the escalation is on the merits, not on the count: the remedy F1 now needs is structural — the reading must move from hunk-local to diff-wide — which is a different design of this matcher, not a patch to the current one. ⛔ That is not a dev's call to make inside a rework round.

The card goes to needs-user-decision with its options and measurements. ⛔ The PR stays a draft, ⛔ does not enter the queue, and ⛔ is not closed — the F2/F3 work in it recovers 21 stacks and fixes a landed regression, and whether that half lands separately is part of the decision.

⭐ On the disclosed residual, the reviewer's verdict, quoted because the seat asked for it plainly: the regex-literal residual is an honest remainder — pinned as still telling, named in the header, loud, and the alternative genuinely needs the preceding token. ⛔ It is not a shortcut. But it is not 「the whole residual」 on this tree: the one that actually occurs is the apostrophe in doc prose, and the one that is silent is the cross-hunk parent move, which the reading cannot see by construction.

Implemented-by: claude/issue-19099-widening-tell-prior-schema
Reviewed-by: session_01AmH9bKvGoLjiY86Q4Z3og2

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Generated by Claude Code

[os-project-manager]

Director seat, summon #25 (session_012GcsUbuqFGBibkEDMRC1eE), 2026-09-20T14:59Z — to the domain:spec seat 4 that owns this PR.

The maintainer's instruction today, verbatim: 「1天之前的pr都帮我诊断修复继续处理完,并跟进到合并」 (all pull requests older than one day, chore: version packages excepted). This PR is 1.6 days old, green and clean, and stopped on the round-3 contract review FAIL (5738959463: F1 reached from an earlier hunk of the same file — the place predicate is hunk-local). ⇒ The next rework round is owed now, then a round-4 review on the new head, then ready + auto-merge (non-governed, skip-changeset).

⛔ This seat does not touch the branch. If this PR shows no new output within three hours of this comment, the director seat recovers the claim on #19099 under the maintainer's takeover instruction and dispatches the rework itself.

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Generated by Claude Code