`check-widening-tells` T3 reports 27 FALSE widening tells on `packages/spec/api-surface-signatures.json` once PR #19024 restores its `REGEN_ARTIFACTS` row — `PUBLISHED_SURFACES` admits a file that is in no package's `files[]`, and the gate's remedy sentence points the repairer at the matcher instead of `scripts/regen-artifacts.mjs`

[os-project-manager]

Filed by the director seat, summon #25 (session_012GcsUbuqFGBibkEDMRC1eE), closing a debt its own ruling left open: the batch #193 item 1 ruling on objectstack#19267 (record 5749024599) delegated this card to the skills lane; the at-tier contract review of PR #19024 (record 5749235348, item ①6 and the (b-class) row) confirmed the finding, refined its cause and recorded it as 「NOT yet filed … standing debt」. ⛔ Filed unassigned; ⛔ no domain:* / priority:* / type applied — triage's. ⛔ Not a claim.

The reading — the PR #19024 reviewer's, taken at head 499c4791d6; ⛔ not re-run by the filing seat, reproduce first

• On the post-revert tree, check-widening-tells --declaration no exits 4 with 27 T3 rows, all packages/spec/api-surface-signatures.json:2-28; --declaration yes exits 0.
• The tells are false three ways: the file is in no package's files[]; it is absent from the published tarball; check:api-surface reports the surface unchanged.
• ⚠️ The attribution circulating on the PR (「which copy of the MATCHER runs decides the verdict」) is wrong: running main's check-widening-tells.mjs with the rest of scripts/ post-revert still exits 4 with the same 27; only restoring scripts/ in full gives exit 0. The decisive input is the REGEN_ARTIFACTS row for that file in scripts/regen-artifacts.mjs, which PUBLISHED_SURFACES filters on — not the matcher.
• The gate's own remedy sentence says 「repair it here in the matcher」, which sends a repairer to the wrong file.

Why it matters now

While the row is restored (it is, on main, once PR #19024 lands) and a PR touching that file honestly declares Clause-②: no, check-clause2-carriers --pair <n> cannot reach exit 0 — C5 stands on 27 false tells. The reviewer's warning, verbatim: ⛔ do not read that exit 4 as the PR's defect, and ⛔ do not 「fix」 it by re-declaring yes. ⇒ every future edit of the signatures file (a regen artefact that moves whenever the spec's shape moves) is either falsely red or falsely declared.

What this card asks

1. PUBLISHED_SURFACES must not admit a file that is in no package's files[] — either the REGEN_ARTIFACTS row carries a published flag the filter reads, or the filter derives published-ness from files[] itself. Whichever, the answer comes from one source.
2. The T3 remedy sentence names the decisive input (scripts/regen-artifacts.mjs, the row), ⛔ not the matcher.
3. Pins: the signatures file with --declaration no → exit 0 and zero T3 rows; a control artefact that is published (in some package's files[]) still trips T3 under no, so the fix narrows the false set and ⛔ not the gate.

Not this card

• [finding] check-widening-tells T2 reads a z.enum( token INSIDE a string literal as a closed-set opener — every mandated retirement prescription that names the API to call instead reads as a widening #19221 (T2, a token inside a string literal), [finding] check-widening-tells T1 fires on a member BOUNDED inside a previously-z.unknown() bag, so the criterion-honest Clause-②: no (narrowing) is the blocked declaration and over-declaring is the only unblocked path #19099 (T1, a member bounded in an unknown bag — ruled D′ this summon), [finding] check-widening-tells misses a key re-typed INTO a universal acceptor when the ADDED chain wraps — the mirror of #18234's residual, in the DANGEROUS direction #19156 (a missed acceptor on a wrapped chain): none covers whole-file restoration under T3 or PUBLISHED_SURFACES admitting an unpublished file (the reviewer's dedupe reading, ⛔ not re-run here).
• PR revert(spec): take back the declaration-text snapshot, restore the 27 signature hashes #19024 itself: it lands by human merge under the 5000-line rule and is not waiting on this card.

Dedupe words: check-widening-tells T3 false tells api-surface-signatures · PUBLISHED_SURFACES files[] unpublished artefact · REGEN_ARTIFACTS row published flag · widening-tells remedy sentence matcher misdirects · check-clause2-carriers C5 false tells

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