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docs(phi-scan): cut a test-composition sentence that was wrong twice - #39

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phi-scan-cut-the-green-test-composition
Aug 7, 2026
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docs(phi-scan): cut a test-composition sentence that was wrong twice#39
NSchatz merged 1 commit into
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phi-scan-cut-the-green-test-composition

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@NSchatz NSchatz commented Aug 7, 2026

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Follow-up to #38, from its third conformance pass.

The sentence describing which tests stay green under the base scanner under-enumerated: it named "the floor tests, the controls, and the ones that PIN a residual", and at least 15 of the 38 fall in none of those categories. They are regression guards from earlier slices (rename detection, staged non-regular entries, all-mode non-regular entries, and the two invocation-failure cases), and this repo's vocabulary makes "controls" a narrow enumerated set that cannot absorb them.

That paragraph produced a documentation-accuracy defect on three consecutive passes, which is a signal about the paragraph rather than the scanner. The sentence is therefore cut rather than restated a fourth time, per the standing "CUT, do not rewrite" rule. What replaces it is the one fact that is cheap to verify and does not decay into a taxonomy: 33 of the 38 are tests the base suite already carried, re-derived here (34 base tests, 33 carried forward, 14 new, 47 total).

The load-bearing number is untouched and was confirmed by that same pass: 9 of 47 red against cd221a0's scanner. One markdown paragraph, no behaviour change.

A sibling instance of the same pattern one section up, describing an earlier slice, is PRE-EXISTING and is deliberately left for its own slice.

The third conformance pass on the phi-scan slice found that the sentence describing
which tests stay green under the base scanner under-enumerates: it named "the floor
tests, the controls, and the ones that PIN a residual", and at least 15 of the 38 fall
in none of those categories. They are regression guards from earlier slices: rename
detection, staged non-regular entries, all-mode non-regular entries, and the two
invocation-failure cases. This repo's own vocabulary makes "controls" a narrow
enumerated set, so they cannot be absorbed into it.

That paragraph has now produced a documentation-accuracy defect on three consecutive
passes, which is a signal about the paragraph rather than about the scanner. So the
sentence is CUT rather than restated a fourth time, per this repo's standing "CUT, do
not rewrite" rule. What replaces it is the one fact that is cheap to verify and does
not decay into a taxonomy: 33 of the 38 are tests the base suite already carried,
re-derived here (34 base tests, 33 carried forward, 14 new, 47 total).

The load-bearing number is untouched and was confirmed by the same pass: 9 of 47 red
against cd221a0's scanner. No behaviour changes; this is one markdown paragraph.

A sibling instance of the same pattern one section up, describing an earlier slice's
comparison, is PRE-EXISTING and is deliberately left alone for its own slice.
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NSchatz merged commit ba059a2 into main Aug 7, 2026
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NSchatz deleted the phi-scan-cut-the-green-test-composition branch August 7, 2026 18:41
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