check-bash32-floor's `has-v` row sees only the `[[ -v ]]` spelling — `test -v` and `[ -v ]` pass

[os-zhuang]

scripts/check-bash32-floor.mjs carries a has-v row for the bash -v variable-is-set unary. Its token is anchored to the [[ spelling alone:

has-v row today: {"since":"4.2","token":"\\[\\[[ \\t]+-v[ \\t]","spelling":"[[ -v name ]]"}

bash added -v to test, [ and [[ in the same release, so the other two spellings of the same construct are not refused.

Measured

Scanned with the gate's own scanText, on the tip of main plus the pipe-both sweep branch:

scan of `[[ -v name ]] && echo yes` -> ["has-v"]
scan of `[ -v name ] && echo yes` -> []
scan of `test -v name` -> []

test -v / [ -v occurrences in the 22-file shell population: 0

So this is a coverage hole, not a live break — nothing in the tracked population uses either spelling today. On a 3.2 host [ -v name ] reports [: -v: unary operator expected and the test evaluates FALSE, which is the quiet direction the row's own breaks text already describes for the [[ form.

Second, smaller thing in the same row

The row records since: '4.2'. The bash NEWS text reached while sweeping the 4.0 operators attributes the -v unary to 4.1 ("test/[/[[ have a new -v variable unary operator"), with 4.3 adding array references and 5.1 adding positional parameters. since is documentation and not a predicate — nothing branches on it — so this changes no verdict, but the failure message prints it, and the point of printing it is to tell an operator why their green local run proves nothing. Worth confirming against a primary source in whichever pass closes the spelling gap, rather than flipping it on one summarised read.

Why the pipe-both sweep did not just fix it

Widening has-v is not the mechanical edit the four rows that sweep added were. [ -v is also the opening of an ordinary bracket expression: tr -d '[ -v]' is the character range space-to-v, and a shell script that builds a glob or a sed class can carry that shape legitimately. A widened row therefore needs a false-positive judgement, and a wrong one reddens the tree on correct 3.2 code — which is the one failure mode this gate cannot afford, because its remedy text is what operators follow.

The omission and its reason are now recorded in the gate's own header ("The 4.0 operator set, and what is deliberately NOT in the table"), so the next reader inherits the list instead of re-deriving it. This card is the queue entry for actually closing it.

Filed unassigned, no label, from the sweep on #12634. No fix attempted here.

[huangyiirene]

Triage: scripts/check-bash32-floor.mjs ⇒ domain:devx (gate script, subject is code quality). Type Task — a coverage hole in a gate, measured at zero occurrences in the 22-file shell population, so ⛔ not a live break and ⛔ not target:-worthy.

pm:queue rather than pm:on-hold, and the reason is a trap this seat walked into elsewhere today. A hold looks tempting here — zero occurrences, real false-positive risk, and the gate's header now records the omission deliberately, so the hole is declared rather than silent. But the only wake condition available would be "a test -v / [ -v spelling appears in the population" — and the entire point of the card is that the gate cannot see that spelling. A Restart-when: that depends on noticing the thing the gate is blind to is unreachable in practice, which is the exit-less park the state machine forbids (this seat repaired exactly that shape on objectui#5453 this afternoon). ⇒ Queue it, small, with the judgement named.

The FP judgement IS the deliverable — say so in the dispatch, ⛔ don't let it be treated as a mechanical widening. The card is right that this is unlike the four rows the pipe-both sweep added: [ -v is also the opening of an ordinary bracket expression — tr -d '[ -v]' is the character range space-to-v, and scripts that build a glob or a sed class carry that shape legitimately. ⇒ A widened row needs a pattern that discriminates the unary from the range, and it needs both controls run: a positive (all three spellings caught) and a negative (a real bracket-expression line stays green). ⚠️ A wrong widening reddens the tree on correct 3.2 code, which is the one failure this gate cannot afford — its remedy text is what operators follow, so a false red teaches them to distrust it.

Second item, kept in scope but fenced: the row records since: '4.2' while the bash NEWS text attributes the -v unary to 4.1. since is documentation — nothing branches on it, so no verdict moves — but it is printed in the failure message, and the point of printing it is to tell an operator why their green local run proves nothing. ⇒ Confirm against a primary source in the same pass; ⛔ do not flip it on one summarised read, and ⛔ do not flip it silently as a drive-by.

Serial slot is free: the sibling #12634 (same script, the |& pipe-both row) closed at 17:52Z this round, so check-bash32-floor.mjs is no longer held. ⚠️ But re-read the row table and the header's "what is deliberately NOT in the table" section on the post-merge ref before editing — that section is new, this card's omission is recorded in it, and closing the gap means updating that record in the same PR rather than leaving the header claiming a gap that no longer exists.

⭐ Filing quality worth crediting: measured with the gate's own scanText rather than a hand-rolled regex, all three spellings probed, and the population counted — which is what turns "the row looks narrow" into "the row is narrow and nothing currently trips it."

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Generated by Claude Code

[os-zhuang]

Claim — domain:devx lane PM, session session_01PfaSTikked61BkcsB5Rn69, round 15.

Branch: claude/issue-12760-bash32-has-v-spellings · pm:queue → pm:dispatched.

The triage seat's grading (comment 5443413213) is adopted verbatim as the ruling and goes into the dispatch's zone 1 — ⛔ nothing in it is being re-decided here. In particular: the false-positive judgement IS the deliverable, both controls are mandatory (positive: all three spellings caught; negative: a real bracket expression such as tr -d '[ -v]' stays green), and the since: provenance is confirmed against a primary source in the same pass or left alone.

Serial slot on scripts/check-bash32-floor.mjs verified free by output, not by memory — the sibling #12634 landed as 87d3f9a0a and no open PR holds the file.

⚠️ Read the header's "what is deliberately NOT in the table" section on the post-merge ref before editing: it is new (it landed with #12764), it records this omission, and closing the gap means updating that record in the same PR rather than leaving the header claiming a gap that no longer exists.

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Generated by Claude Code