[derek73]

Closes #993.

What changes. 77 US healthcare credentials, each written by at least 2,000 NPPES providers and held by no list, now read as the suffix in every shape where only C6's capitals shape read them before (a comma in a mixed-case name):

"Jane Doe MSW"        →  family="Doe", suffix="MSW"      (was middle "Doe", family "MSW")
"JANE DOE, MSW"       →  given="JANE", suffix="MSW"      (was given "MSW", family "JANE DOE")
"john smith, mbbs"    →  suffix="mbbs"                   (was given "mbbs")
"Doe, Jane MSW"       →  suffix="MSW"                    (was middle "MSW")
"Jane Doe MSW, PhD"   →  suffix="MSW, PhD"               (was family "MSW")

1.4.0 and 2.8.1 read these as master does (the wheels, run 2026-11-03).

Per word (decisions/suffix-acronym-collisions, 2026-11-03 #993):

• 74 listed plain. amft has 5 Wikidata family bearers and no US Census bearer; the count is recorded in its note.
• pac (Census 535) and lat (Census 395) are marked ambiguous, being over Mark 33 credential readings ambiguous where a surname reading is substantial #796's threshold of 200.
• mot (Census 109) is marked ambiguous although the small-count weighing would list it plain. Listed plain, it read a Title-case surname as the credential (Jane Doe Mot → suffix). Marked, it costs only a name written in one case with a word to spare. Whether the same argument should reach amft, cap and aas is recorded as not decided.
• cota is refused with an excluded entry: Census 11,554, and Brazilian and Mexican besides. Marked ambiguous, it took the surname from 49 tse-donors names written in capitals with no comma (ADÃO FERREIRA COTA → suffix 'COTA'). Nothing measured gained from it.
• msed carries the mask MSEd. msn, msd and mspt carry none, because they are written in capitals far more often than as MsN, MsD and MsPT.
• pharmacist, the issue's 79th word, stays held out as an occupation.

Measured (snapshot.py --local <source> --base against master 9547530):

Corpus	Moved	What moved
ctgov-officials	4,720	263 move a listed word from a name field into the suffix (mbbs 189, msd 19, mpt 18, msn 15, mspt 11); 7 move one glued to another credential; 3,660 move only the reported ambiguities; 790 move only the case views
fec-individuals	137	57 name-field moves: credentials or LLP out of a name field, and 19 committee names' PAC
tse-donors	7	THIAGO OLIVEIRA PAC and DIVA DA MOT lose the surname (the accepted cost of the ambiguous class); two C.DE names move; three two-word PAC names add a report
dof-signatures	0

The committed corpora move one name: rules/S8's example, which swaps Bsn (now listed) for the unlisted Ccrn, which reads as Bsn did.

Accepted cost: a dotted initial with a glued particle folds to a listed acronym, so LUIZ ANTONIO C.DE OLIVEIRA reads C.DE as cde. It occurs in 2 records across every local corpus.

Lesson recorded (nameparser/vocab/AGENTS.md, Step 2): screen a credential candidate in every comma shape and in one case, not only John Smith, X. For a word that is also a surname, read the all-capitals corpora too, and count a cost by the field that moved.

Checks:

• The full suite passes (35,465), as do mypy, ruff, and both Sphinx builds with no output.
• The clock-timed serial benchmarks failed 4 tests once under load and then passed all 42 on two reruns.
• The design-docs reviewer ran two rounds. Its findings (three wrong figures, an unrecorded departure, and a release-note limit) are fixed, and the second round's two findings on the fix are fixed too.
• A later review (code, tests, comments) found no critical issue. Its fixes reword the mot note and the counting lesson, record same_as on otrl (→ otr/l) and pac (→ pa-c), expand asw as California's Associate Clinical Social Worker, singularize six notes' "1 official" (two from Should "John Smith, FNP-C" read FNP-C as a credential instead of the given name? #797), and note in the release bullet that a kept surname such as Jane Doe Lat now reports the fork.

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