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The prior comment claimed of-nativity-vigil is 'not a distinct celebration' -
wrong: Temporal_of.named (temporal_of.ml:230) constructs it as its own
Sollemnitas-rank candidate on 24 December, a genuine contestant in
band/Precedence.resolve.
The real reason None is safe is structural, not that. The Nativity is
Tabula entry 2 (band 20); only entry 1, the Paschal Triduum (band 10),
bands lower. The Triduum's Easter-2..Easter window is confined to 20
March-25 April because Gregorian Easter never falls outside [22 March, 25
April] over the whole 1583-9999 domain (measured exhaustively in
test_computus.ml, not assumed), so it can never reach 25 December. The
Nativity therefore always keeps its own day and its vigil can never be
orphaned by a transfer or reduction.
Behaviour is unchanged: vigil_feast still returns None unconditionally.
RG 33 (EF-only) and Normae nn. 11/13 remain the reason the hook exists at
all and returns None for every other candidate.
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admit returns the empty list because disposition never returns Commemorate;
vigil_feast returns None because the OF has no vigil office that its feast's
movement could orphan -- 'of-nativity-vigil' is a Mass formulary of the
solemnity, not a separate celebration.
Both are argued from the sources rather than stubbed, and Precedence_of.rules
now assembles the four functions the kernel resolver consumes.
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An impeded solemnity transfers; every other loser is omitted for that year
('Reliquae celebrationes eo anno omittuntur').
Commemorate is never returned, and that is the rule rather than a gap: the OF
has no commemoration of a losing celebration in the EF's sense, and an
optional memorial is an election rather than a commemoration. A property over
every rank pairing asserts it, so a later edit cannot quietly introduce one.
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A hand-transcribed 13-entry table is only trustworthy if nothing the engine
constructs falls through it. Sampled property plus an exhaustive sweep behind
COLITUR_EXHAUSTIVE_SWEEP, matching the claim Precedence_ef.band already
carries for RG 91's 28 entries.
Mutation-proved rather than assumed: deleting the entry-13 branch reddens it
on a named date.
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Entries 10-13. Entry 12 is one undivided row -- the Tabula draws no
universal/proper split for optional memorials, unlike entries 3/4, 7/8 and
10/11 -- so it deliberately does not read the layer.
Entry 13's four clauses need no date arithmetic of their own: every
privileged feria is entries 2 and 9, tested earlier in the chain, so what
reaches the final branch is exactly the residue those clauses name.
Entry 10 uses [not (is_proper layer)], not the brief's original
[is_universal layer]: is_universal was deleted as dead code in Task 2,
because every temporal-origin candidate carries layer = "temporal", never
universal_layer, so a positive is_universal test can never match one --
the same correction entries 3, 5 and 7 already apply.
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Fix round 1 (coordinator review). The Nativity Vigil (24 December,
Sollemnitas) bands at entry 3 (30) rather than entry 9 (90) as a direct
consequence of this task's ruling, but nothing pinned it -- a future
branch-reorder (e.g. inserting an entry between 3 and 9, or loosening
entry 9's date guard) could silently revert it to 90 with the suite
green.
Adds one row to part2_cases with a comment recording: the Tabula's own
entry 9 textually covers 24 December as a late-Advent feria, yet Phase
1 gives that civil day the of-nativity-vigil identity at Sollemnitas
because the Vigil Mass is celebrated that evening -- the same
civil-day-granularity shape Holy Thursday already settles (entry 2,
not entry 1); Phase 2 classifies Phase 1's emitted identity rather
than overriding it. Unobservable on the universal calendar today (no
competing candidate on 24 December); live under a proper/diocesan
overlay, where a proper solemnity (entry 4, band 40) loses to the
Vigil at 30 but would beat it at the textually-arguable 90.
No production code change -- test-only, per the coordinator's ruling
to pin current behaviour rather than alter it.
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Entries 5-9. Entries 5 and 7 differ only by subject -- 'Festa Domini'
against 'Festa beatae Mariae Virginis et Sanctorum' -- so they key on
Celebration.t.subject, the same field RG 91 entry 14 uses on the EF
side, never on the slug.
Entry 9's three clauses (late-Advent ferias from 17 December, the
Nativity octave, Lenten ferias) are what separates a privileged feria
from the ordinary one at entry 13.
CORRECTION to the task brief, applied here rather than after: entries
3, 5 and 7 test 'not (is_proper layer)', not 'is_universal layer'.
Every temporal-origin candidate Temporal_of.temporal constructs
carries layer = "temporal" unconditionally, never universal_layer, so
a positive universal-layer test silently excluded every temporal-cycle
solemnity and Lord-subject feast from these entries -- Corpus Christi
came out unclassified outright, and Trinity/Christ the King/Holy
Family/the Baptism of the Lord landed one entry too low. is_universal
is now dead and removed; entry 3's branch (written in Task 1) is
amended along with the new entries 5 and 7. Only entries 4 and 8 still
test is_proper directly, matching the Tabula's own proper-calendar
rows.
Also fixes a pre-existing typo in the brief's own 'entry 6: a Sunday
per annum' test row: rank was Sollemnitas, which -- being tested at
entry 3, earlier in the chain -- made the row fail regardless of the
is_universal/is_proper question, since no real Sunday per annum is
ever Sollemnitas. Changed to Festum, matching the adjacent 'Sunday of
Christmas time' row and real Temporal_of output.
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The Tabula dierum liturgicorum's entries 1-4, one band branch each, scaled
x10 as Precedence_ef's own table is. The Triduum is identified structurally
by Easter offset because Temporal_of emits Good Friday and Holy Saturday as
ordinary Lent week-6 ferias, leaving no slug to key on.
Holy Thursday sits at entry 2, not entry 1: the Tabula's own entry 2 runs
'a feria II ad feriam V inclusive' and the Triduum opens with an evening
Mass inside that civil day. Same granularity decision the litcal layer's L1
records on the season axis.
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Adds a sixth-lineage external validation layer for the OF rite module's
Phase 1 temporal cycle, targeting the single highest-risk function that
report named: the two-block Ordinary Time week arithmetic (Normae n. 44),
which has no external witness anywhere in Phase 1's own suite and whose
output selects the Mass formulary, not merely a label.
Witness: litcal (Liturgical Calendar API), Apache-2.0, already archived
and SHA-256-pinned by the sibling lectio project. AELF was considered and
correctly excluded earlier (its CGU forbids redistribution) -- litcal is
what it was replaced with.
- tools/extract_litcal_ordo.py verifies all twelve archived
calendar-YYYY-en.json files (2024-2035; the task brief said eleven,
but twelve are actually pinned in lectio's manifest -- all twelve are
used) against lectio's own manifest.tsv, then builds one fixture
spanning the contiguous 4382-day range those twelve liturgical-year
files cover.
- test/fixtures/litcal-temporal-2024-2035.sexp: one row per day, season
and (where witnessed) Ordinary Time week, with full provenance,
licence, per-year Easter dates and the row-selection rules in its own
header.
- test/test_litcal_of.ml calls Temporal_of.temporal directly (no Rite.t)
and compares 1:1 against the fixture: zero Ordinary Time week
mismatches on all 1876 witnessed days (zero tolerance, no allow-list);
the only season divergence class is the Sacred Triduum, which litcal
tags with a season value colitur's vocabulary deliberately has none of
-- one cited allow-list entry, data/of/expected-divergences-litcal.sexp,
36 rows, exact.
- Mutation-tested: dropping the backward-from-34 adjustment reddens this
layer (1511 of 1876 days) plus three pre-existing Phase 1 tests; the
mutation was not committed.
Does not touch lib/rites/rite_ef/, data/ef/, or lib/rites/rite_of/ --
this validates Phase 1, it does not change it. Full suite: 786 tests via
dune test, 791 via make check, exit 0 both; lib/bin diff empty throughout.
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The first code for a second rite. lib/rites/rite_of/vocab_of implements
the OF's five-way rank vocabulary (Sollemnitas/Festum/Memoria_obligatoria/
Memoria_ad_libitum/Feria) and five-season vocabulary (Advent/Christmas/
Lent/Easter/Ordinary_time), each constructor cited against the 2002
Missale Romanum's Normae universales and the Tabula dierum liturgicorum.
temporal_of implements season boundaries, week numbering — including
Ordinary Time's own two-block resumption, derived from the Missale's own
"HEBDOMADA I/XXXIV 'per annum'" headings and empirically verified across
the whole 1583-9999 domain — named temporal days, and Sunday/ferial
slugs. Both satisfy Colitur_kernel.Temporal.RITE with no kernel change.
No Rite.t is assembled and no CLI wiring is added (Phase 2's own scope);
lib/rites/rite_ef and data/ef are untouched, verified byte-identical
against the v1.0.0 tag across a domain-spanning sample.
test/test_temporal_of.ml adds unit tests for every boundary and named day
plus seven QCheck properties (seasons contiguous, Ordinary Time weeks in
1..34, Advent always four Sundays, slug uniqueness, weekday agreement,
determinism, consecutive liturgical years partition civil time), with a
committed exhaustive sweep mirroring test_validate.ml's own convention.
Full account, including the Ordinary Time derivation's evidence and a
list of EF concepts that do not carry over, in
.superpowers/sdd/of-phase1-report.md (untracked, gitignored).
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colitur now prints what a real ordo prints for the Mass: which formulary is
said and how it was reached, the Gloria, the Creed, the preface, and the
commemorations with their Low-Mass/sung distinction. colitur rubrics joins
day and readings.
Four defects were found and fixed on the way, each by an external witness
rather than by inspection: the Creed said at Requiem Masses (RG 476(f)),
the missing bissextile shift of St Matthias and St Gabriel (2 041 leap
years), Rogation Monday and Tuesday coloured violet in Paschaltide (RG
119(b)), and the ferias after the Ascension resuming the wrong Sunday's
Mass rather than the Ascension's.
Validation gained a sixth layer and then some: the preface is checked
against three independent publishers over seven witness-years (FIUV, three
LMS editions, three extraordinaryform.org editions), none of which shares
the Divinum Officium -> missalemeum -> lectio lineage the older layers all
descend from.
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Both entries reasoned correctly that these feasts are not in the universal
calendar, then recommended adding them to CLAUDE.md's list of sanctoral
entries MISSING from colitur. Those cannot both be true, and acting on the
recommendation would add a particular-calendar feast to the universal core
-- what binding decision 2 exists to forbid.
The Missal classifies both itself, under "Missae pro aliquibus locis":
scan1.txt:52019 for the Miraculous Medal, 48793 for St John before the
Latin Gate. Masses for some places.
So they are not gaps. They are particular feasts colitur correctly excludes
and an overlay would supply, the shape poland.ini and benedictine.ini
already demonstrate; the ordos carry them because those ordos serve
communities that keep them. Verdicts unchanged, now resting on the Missal's
own words rather than on background knowledge of the apparition.
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Extends the preface comparison (RG 482-499) with a third, independent
publisher, extraordinaryform.org's three annual Ordo editions
(2024-2025, 2025-2026, 2026-2027), previously declined for two reasons
that are now resolved:
- "Advent" is not a preface: RG 494(b) grants the Trinity preface on
every Advent SUNDAY, RG 498 the residual Common on every Advent
FERIA; this source's own "Advent" label covers both indiscriminately
(confirmed live on all 11 non-impeded Advent Sundays in the corpus).
Classified by the day's own civil weekday, not a static table.
- The known Vigil-of-St-Lawrence gap is reconfirmed, with a nuance not
present in the earlier audits: colitur's own RG33-third-trigger now
omits the vigil in some years too, so the corpus's gap and colitur's
answer coincide in 2025 (a full match, not a coincidence) while 2027
still shows the classic identity-wrong-but-preface-invisible shape.
Re-derives the known menu-trap office filter (Requiem-skip, "and "-chain)
against the live JSON and finds a second, general pattern: "Saturday of
Our Lady" (RG78's BVM Saturday Office), whenever listed, is
unconditionally the office -- checked exhaustively across all 38
instances in the corpus, zero counter-examples. A third, generic
"absorption" rule was deliberately not built: it would resolve 2 of the
11 residual divergences but wrongly misfires on a structurally identical
but semantically different shape (an optional Rogation-day Mass option).
The JSON's own extraction carries a genuine classifier gap: parse_ordo.py's
hardcoded PREFACES set omits "Christ the King", misfiling it into comms;
recovered in the generator, not left blank.
11 of 1088 comparable rows diverge, resolving to 7 adjudicated root
causes (E1-E7): two Commemoration_only Marian titles reduced to
commemorations (Mt Carmel, Ransom), two genuine sanctoral data gaps
cross-confirmed absent by the FIUV/LMS witnesses (Miraculous Medal,
St John before the Latin Gate), two single-witnessed efdotorg outliers
against FIUV/LMS agreement (St Michael's Dedication, All Saints on a
Sunday), and one isolated source labelling slip.
Mutation-tested: corrupting the RG495 BVM-Saturday clause reddens 9
tests across this new layer and both existing Ordo witnesses.
Per-edition agreement: 358/363 (2024-2025), 358/363 (2025-2026),
361/362 (2026-2027).
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RG 497 ("in Missis festivis et votivis Apostolorum et Evangelistarum")
carries no natalicium restriction, unlike RG 475(e)'s Creed clause --
preface_apostle_slugs already includes one non-natalicium sibling (In
Commemoratione S. Pauli, 30 June) on this exact reasoning.
conversion-of-st-paul (25 January) was left off pending a witness: the
FIUV Ordo's own single window has 25 January impeded by a Sunday.
Now witnessed four times, two independent publishers, four civil
years: the Latin Mass Society Ordo's 2023-2024 and 2024-2025 editions
both read "Pr of the Apostles" on their own unimpeded 25 January
(2024, 2025); extraordinaryform.org's 2024-2025Ordo.pdf and
2026-2027Ordo.pdf independently agree on their own unimpeded years
(2025, 2027, spot-checked, not wired in as a fixture). Every source's
2026 edition agrees 25 January is impeded that year and produces no
data point at all. No source disagreed with the textual reading.
Surveyed every other Apostle/Evangelist-named slug in
data/ef/sanctoral.sexp before concluding the list needed exactly this
one addition: the Dedication of the Basilicas of Sts Peter & Paul (18
November) is confirmed NOT an RG 497 trigger (all three LMS editions
read "Pr of the Dedication of a Church", not "Apostles" -- it is about
the buildings, not the Apostles in person); the Vigil of Sts Peter &
Paul (28 June) is confirmed "Common Pr", corroborating the pre-existing
"no vigil ever reaches this branch" comment.
Blast radius, measured exhaustively (1583-9999, new permanent sweep in
test_rubrics_ef.ml): 7217 domain years have 25 January unimpeded and
observed; all 7217 now read Apostles, zero exceptions.
Claude-Session: https://claude.ai/code/session_017ZBxCCRM2ojnBupp3SBxV9
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Extends tools/extract_lms_ordo.ml's row type with a praef field (the
first "Pr of ..." / "Common Pr" match in each day's universal block,
same first-in-reading-order discipline already used for Gl/Cr) and
regenerates all three LMS fixtures. Also brings lms-ordo-2024-2025.sexp
under the generalised, probe-verified provenance template the Witnesses
task previously added only for the two newer editions -- it had kept
Task 6's original hand-written header.
Characterisation finding: this Ordo prints OPTION LISTS ("Pr of X or Pr
of Y or Common Pr"), not a single value per day, and several named
options (Martyrs, All Saints and Patron Saints, the Dedication of a
Church, the Most Holy Sacrament, St John the Baptist, the Angels) are
genuinely absent from RG 484-497's own fourteen named prefaces. Every
instance found in the universal block pairs such an extra with a
genuine RG-482 answer, so test/test_lms_ordo.ml compares by membership
(classify_praef_options, a 15-entry prefix table split on the
standalone token "or"), not string equality.
Opposite-prediction probes (Nativity/Apostles/Requiem) are hard-
verified inside the extractor itself before any fixture is trusted, the
same discipline already used for the Creed column.
Result: 396/396, 399/399, 398/398 comparable rows agree across the
three editions (Good Friday excluded per edition, no Mass that day),
zero allow-list entries needed.
extraordinaryform.org's own three editions were characterised but
deliberately not wired in this pass -- see
.superpowers/sdd/2026-08-21-colitur-celebrant-rubrics-phase1/preface-witnesses-report.md
for the full account (the field is genuinely per-day, contrary to a
naive header-count read, but carries its own classification anomaly
during Advent and reconfirms the corpus's known St Lawrence vigil
defect, and building a full extractor for it is a separate, comparably
large task not needed to decide the RG 497 question this same report
settles).
Claude-Session: https://claude.ai/code/session_017ZBxCCRM2ojnBupp3SBxV9
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Item 2 of Phase 3 (celebrant-rubrics-phase1), the bulk of this phase
and the last EF Mass rubric this project scoped: which preface is
said, deferring to seasonal/proper-title rules for the fourteen named
prefaces, then RG 498's Common residual.
RG 482 gives the resolution chain: the Mass's own proper preface,
failing that the seasonal one, failing that Common. Read literally,
RG 484-497 look like fourteen separate rules, but each numbered
rubric's own propria/de-Tempore pair produces the SAME preface
identity either way, so the whole chain collapses into one priority-
ordered decision: title/mystery triggers (Holy Cross, Sacred Heart,
Christ the King, Trinity, St Joseph, BVM, the Nativity octave, the
Apostles, Epiphany), each independent of season, then six seasonal
windows (Nativity, Epiphany, Lent, Holy Cross/Passiontide, Easter,
Ascension, Holy Spirit, Trinity-for-ordinary-Sundays), then Common.
The "one genuinely unproven piece" the design spec worried about --
per-feast proper prefaces extracted from the Missal's propers at scale
-- turned out not to be a large-scale extraction problem at all: every
one of the fourteen propers is a closed, small, subject/slug-keyed
trigger (mirroring Precedence_ef.band's own RG 91 table), not
thousands of individual saints' pages. The one genuine open question
(RG 488, the Chrism Mass) is N/A: this engine resolves one Mass per
civil day and has no separate Chrism-Mass dimension.
Preface is a new kernel type (lib/kernel/preface.ml[i]), not an
EF-specific one, the same placement as Colour/Subject/Mass_formulary:
Liturgical_day.t is parameterised only over season/rank, so any field
it carries generically must live in the kernel even though only EF
constructs a value of it today. Wired exactly as creed/gloria were
(Rite.t.preface, Calendar.ml, Rite_ef.context), but Preface.t option,
not a bare bool: unlike creed/gloria, a preface is said only at a
Mass, and Good Friday (1955-restored Holy Week) resolves an observed
celebration but has no Mass at all -- None is the honest answer there,
and also the neutral value an unimplemented rite returns.
Two priority-order findings only the oracle settled, not derivable
from the Latin text in isolation, both cross-checked against 358
individually classified entries in the FIUV Ordo's own praef column
(test/fixtures/fiuv-ordo-2025-2026.sexp, already captured, wired up
here as a new comparison axis): RG 484(b)'s own "except Masses with a
proper of the divine mysteries or Persons" is narrower than every
other window's implicit exception (an Apostle inside the Nativity
octave is overridden to Nativity; outside it, keeps his own preface
even inside another window); and RG 495's "et votivis" half is live
for the one office this engine models without a votive-Mass dimension
(the Saturday Office of the BVM), which also proved a vigil is not a
"festum" for this purpose (the Assumption's own vigil takes Common,
not BVM, correcting an initial reuse of Precedence_ef.marian_slugs
that had no reason to make that distinction for its own, different
rubric). A third, RG16(a)-shaped fix landed the same way: RG 494(b)'s
own Trinity grant must read the day's TEMPORAL season, not the
celebration that actually won it, or a Class1 feast with no preference
of its own (All Saints) wrongly falls to Common on a Sunday it merely
commemorates.
colitur rubrics gains a sixth TAB-separated column. Domain-wide
1583-9999 exhaustive sweep confirms every Christmastide day resolves
Nativity/Epiphany/Bvm, every Paschaltide day one of its own three
windows or a season-independent title, every Lent day Lent or a
title, and Passiontide legitimately produces Easter exactly once a
year (the Vigil Mass) -- 8416 of the domain's 8417 years, the one
short year being the domain's own upper boundary (the liturgical year
opening in 9999 cannot construct dates in year 10000, a pre-existing
edge this sweep re-confirms rather than a new one).
day/readings verified byte-identical to the branch's own state before
this phase (commit 9c96e0a) across a 455-year sample spanning the
whole domain -- not literally to the v0.10.1 tag, which 22 earlier
commits on this same branch (Phase 1/2, the bissextile shift, the
Rogation colour fix) had already moved past before this phase began.
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Item 1 of Phase 3 (celebrant-rubrics-phase1): the "at Low Mass"
commemoration-placement rule the design spec recorded as unread. It is
not a new rule -- it is the sung/low axis of RG 111, which colitur
already implements.
RG 111(a) (LT.txt, "Ratio admittendi commemorationes"): a liturgical
day of the first class, AND any non-conventual sung Mass regardless of
the day's own class, admits at most one commemoration, and only if it
is privileged. (b)/(c)/(d), the same rubric's remaining clauses, give
the wider caps colitur's admit already computes -- which is exactly
the LOW MASS answer.
Exposed as Precedence.sung_mass_commemorations, a pure derivation over
the existing Low-Mass admitted list (filter to Privileged, keep the
first), not a new stored field on Liturgical_day.t: the input list is
already validated and privilege-tagged, so a second field would only
create a second place for the same fact to drift out of sync with the
first, with no new information gained. Liturgical_day.t.commemorations
is now documented as the Low Mass set explicitly, removing the
ambiguity its .mli previously left unstated.
Tested against synthetic Low-Mass sets (none/one/two privileged,
already-first, empty) and two real calendar days resolved through the
normal Cal.day pipeline: 2026-08-14 (Vigil of the Assumption, an
ordinary-only commemoration, dropped at Sung Mass) and 2026-04-25 (the
Major Litanies, RG 80/109(f), privileged, kept at both Masses).
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Ascension has no octave under the 1960 rubrics -- confirmed structurally:
the Proprium de Tempore's own table of contents runs straight from "In
Ascensione Domini" to "Dominica post Ascensionem" with no per-feria
headings in between. Step 3 of the reading chain therefore fell through
to Preceding_sunday on every unoccupied weekday in that stretch, walking
each one back to the 5th or 6th Sunday after Easter's own citation.
The Missal's own Proprium de Tempore carries an explicit marginal rubric
immediately after the Ascension's Mass propers, before "Dominica post
Ascensionem" begins: "Diebus a feria VI post Ascensionem usque ad feriam
VI ante vigiliam Pentecostes inclusive, dicitur Missa de festo
Ascensionis, cum Gloria et praefatione de Ascensione, sine Credo et
Communicantes proprio" -- every feria without its own proper, from the
Friday after the Ascension through the Friday before the Vigil of
Pentecost, repeats the Ascension's own Mass. RG 490(b) corroborates
independently: it assigns the Ascension preface "tamquam de Tempore"
across that identical window, which only makes sense if the Mass
actually repeated there is the Ascension's, not a numbered Sunday's
(whose own Mass would carry no need for a preface override at all).
Witnessed directly, not only inferred from the rubric: the LMS Ordo
prints "Mass of the Ascension" literally on every affected day across
all three of its fixture windows, in BOTH the tail of Ascension's own
week and the following week -- ruling out the alternative reading (that
the second week instead resumes "Dominica post Ascensionem"'s own Mass,
which a first pass over the FIUV Ordo's own week-labelled titles could
suggest at a glance; its own [praef] field for the same two dates
independently reads "Ascensionis", resolving the apparent conflict).
Implemented as data, not logic, matching this codebase's own established
precedent for the identical RG 299 shape (the week after Trinity Sunday,
data/ef/lectionary.sexp's [trinity_week_entries]): six new hand-authored
entries, [ascension_week_entries] in tools/bootstrap_lectionary.ml,
regenerated against a git-pinned copy of lectio's own source ini (SHA-256
verified unchanged) so the regeneration carries no unrelated drift. The
window's two Saturdays are deliberately excluded -- RG 78's votive Office
of Our Lady on Saturday always wins an otherwise-unoccupied Class4
Saturday first, before step 2 (this fix's own entry point) is ever
reached, so an entry for either slug would be dead data.
Blast radius measured in-process across the full 1583-9999 domain
(throwaway probe, not committed): 16 350 days total across the six
slugs, every one resolved via step 2 (Own_slug), zero anomalies, and the
window's two Saturdays confirmed to contribute zero hits via this cause
across the whole domain, corroborating the RG78-interception reasoning
by direct sweep.
Closed L2 in data/ef/expected-divergences-lms.sexp. New cited entries:
C41 in data/ef/expected-divergences.sexp (95 of 16801 rows, 2005-2050 --
lectio has no equivalent rubric and still walks these ferias back);
M31 in data/ef/expected-divergences-missalemeum.sexp (3 rows in the
2026-2027 window, plus the same shape independently reconfirmed in the
2035 and 2038 live-capture windows) -- missalemeum, Divinum Officium's
lineage, still gives the same wrong answer colitur itself used to give,
which is why these rows used to agree with M18's shape and now escape it
(M18 373 -> 370, the same mechanism M23-M27 established when the
citation axis was first built).
Golden pin: 2031-05-23, the exact date the bug report was filed against.
Mutation-tested: reverting data/ef/lectionary.sexp alone (a git-diff
capture/restore, not a source-code revert, since the fix is data) reddens
19 tests across the differential, both oracle fixtures, all three LMS
Ordo windows, the golden pin, the lectionary unit test and every Render
golden template; restored and reconfirmed green (681 tests; 683 under
COLITUR_EXHAUSTIVE_SWEEP=1, ~175s).
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Temporal_ef.temporal's Rogation Monday/Tuesday branch hardcoded
Colour.Violet with no citation (data/ef/expected-divergences-lms.sexp's
L6, surfaced by the LMS Ordo). RG 119 assigns white to the de-Tempore
Office and Mass from the Paschal Vigil Mass to the Pentecost Vigil Mass
exclusive; Easter+36/+37 sit inside that window. RG 128's own exhaustive
four-case violet list never names Rogation days, and its vigil clause
(d) is doubly inapplicable: these are not vigils, and they are inside
Paschaltide, not outside it. RG 88 explains the violet actually seen in
print sources: "de Litaniis minoribus nihil fit in Officio, sed tantum
in Missa" -- the violet belongs to the Rogation Mass/procession, a
distinct votive text this engine does not model, not to the day's own
Office. Witnessed directly: LMS Ordo 2023-2024, 2024-05-06, "FERIA IV Cl
W" with "Gl", the Office and Mass printed separately from the optional
violet votive Mass of the Rogations.
Cascade verified, not assumed: RG 432(b) omits the Gloria on every
violet Mass, so the wrong colour was also silencing the Gloria on these
two weekdays even though RG 237(e) (Breviary, ordinary Paschaltide
ferias say Te Deum) already made it true underneath. White removes the
432(b) block, and the Gloria now follows Te Deum via 431(a), matching
the Ordo's own "Gl" -- confirmed with dedicated golden pins in both
test_golden.ml (colour) and test_rubrics_ef.ml (the Gloria flip),
2028-05-22/23 (neither day impeded that year).
Closed L6 in data/ef/expected-divergences-lms.sexp. Reopened C8 in
data/ef/expected-divergences.sexp (26 of 16801 rows, 2005-2050): lectio
independently computes these two days violet too, so the two engines
used to agree by sharing the same uncited assumption; colitur's colour
is now correct and lectio's is not, so the comparator disagrees again,
for the opposite reason. While reopening C8, found and corrected a
genuine misattribution in its own prior closure note, which claimed
lectio's violet was "RG 128(d)" -- 128(d) governs vigils outside
Paschaltide and has nothing to do with Rogation days. Checked
docs/research/rules-register.md for the same claim: not present there,
but a related conflation was found and corrected at its O'Connell
section 4(d) note, which had used a Rogation MASS/procession citation to
"confirm" the day's own OFFICE colour.
Blast radius measured in-process across the full 1583-9999 domain
(throwaway probe, not committed): 4722 days total (2368 Rogation
Mondays + 2354 Rogation Tuesdays actually observed outright, i.e. not
impeded by a stronger sanctoral feast that year), all Violet->White,
all with the Gloria flipping false->true alongside, zero anomalies.
Mutation-tested: reverting the branch to Colour.Violet reddens 16 tests
across Rubrics_ef, the lectio differential, the LMS Ordo suite and both
golden pin files; restored and reconfirmed green (680 tests).
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data/ef/expected-divergences-lms.sexp's L5 (16 dates, LMS Ordo Gloria=true
vs colitur's false) and data/ef/expected-divergences-fiuv.sexp's F3 (6
dates, FIUV Te Deum=true vs colitur's false) were both misadjudicated as
colitur's own gap under an RG 302(b)/431(b) hypothesis. Both are wrong.
These are occurrence differences from the 2020 decree Cum Sanctissima,
which colitur excludes from its 1962 core by binding design (CLAUDE.md
decision 2). RG 303(b) ("dici potest tantum si occurrit dies liturgicus IV
classis") already prohibits 302(b) on the Class3 privileged ferias both
entries cover -- the original text quoted 303(b) but never followed it to
its conclusion. Decisively, the FIUV Ordo prints BOTH readings on the six
shared dates, separated by a literal "-VEL-" token: the primary, strict-
1962 reading (feria wins, sine Gloria, no Te Deum) matches colitur exactly;
the second, Cum-Sanctissima reading (saint kept, Gloria, Te Deum) matches
the LMS Ordo exactly.
F3 itself was never a real Te Deum finding: tools/extract_fiuv_ordo.ml's
extract_te_deum scanned each block unbounded for "Ad Mat.", so on these six
days -- whose primary office states no "Ad Mat." of its own -- it silently
read the second office's own Te Deum instead. Fixed with a new
split_at_alt_office, cutting every block at "-VEL-" before any field
extraction runs; the alternative is captured, not discarded, in a new
alt_te_deum field. A hard characterisation probe asserts the split fires on
exactly the six known dates.
Auditing for the same trap elsewhere (this is the third such manufactured
divergence in this project) found a related but narrower marker, "Vel (sec.
decretum <<Cum sanct.>>) Missa ...", offering an alternate Mass formulary
within a single office. It never corrupted Gloria/Credo (always stated
before the marker on all 20 real instances, confirmed by diff), only the
uncompared praef field; hardened defensively anyway, before it could ever
fire live. The LMS Ordo (all three editions) carries no equivalent
dual-print mechanism at all. expected-divergences-missalemeum.sexp's M27
is the same genus but was already correctly adjudicated, not touched.
Both allow-list entries are rewritten, not deleted: the original SHAPE/
CITATION/WHY-NOT-FIXED-HERE reasoning is preserved verbatim as a recorded,
superseded hypothesis, matching this project's own correction convention.
test_lms_ordo.ml's matching predicate is unchanged (the 16-date population
still fires, and always will, because it reflects a standing exclusion,
not a bug); only its citation comment is corrected. test_fiuv_ordo.ml's
F3-specific predicate/count assertion is removed, matching this file's own
prior F2/F4 closure discipline.
lib/ is untouched. dune test: 676/676. make check
(COLITUR_EXHAUSTIVE_SWEEP=1, full 1583-9999 domain): 678/678.
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F1 adjudicated the FIUV ordo's Good Friday "Gloria" against the ordo, but
rested on external attestation and left a pdftotext misread unruled-out.
The page image resolves both.
The extraction is faithful: the printed book does carry that line. So the
adjacent-block-misread possibility is ruled out rather than merely doubted.
And the same page shows the compiler knew the distinction. Holy Saturday,
its next entry, carries no Mass line at all -- correctly. Easter, the entry
after, carries a full one -- correctly. Good Friday, which likewise has no
Mass, wrongly receives one, word-for-word identical to Holy Thursday's on
the preceding page, while its own Vespers rubric four lines below calls the
day's rite an Actio liturgica rather than a Mass.
Verdict unchanged. It now rests on internal evidence from the source rather
than on every other authority disagreeing, which is the footing this
project's own standard asks for.
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Phase 2 of celebrant-rubrics-phase1: colitur rubrics gains a fifth
column, whether the Gloria is said. Follows the Creed's own seam
exactly -- Rite.t.gloria, Liturgical_day.t.gloria, wired through
calendar.ml the same way.
RG 431(a)/432(a) defer the Gloria to the Breviary's own Te Deum rule
(nn. 237-238), so te_deum is implemented as its own named predicate,
cited clause by clause, not collapsed into a colour heuristic. 431(c)
(Holy Thursday, the Easter Vigil Mass) and 432(b)/(d) (violet; a
Requiem) are independent overrides checked ahead of the Te Deum-derived
answer. Every clause this engine has no dimension to model
(votive Mass classes, the wider n.302 "Missa festiva" categories) is
stated as N/A with its own reasoning, not silently dropped.
Validated against the FIUV universal Ordo (Gloria and Te Deum) and all
three LMS editions (Gloria). A first pass over-trusted a clean-looking
15-for-15 FIUV contradiction of 237(b)'s own Septuagesima exception and
replaced it with a blanket "every Sunday" rule; the evidence was itself
corrupted -- the FIUV extractor recognised only one of the source's two
Te Deum negations ("non dicitur", not "sine"), so every "sine Te Deum"
Sunday read wrongly true. Fixed in tools/extract_fiuv_ordo.ml, fixture
re-extracted, and the literal 237(b) reading restored once the
corrected data confirmed it. A second bug surfaced alongside it (Palm/
Passion Sunday wrongly reading true via Temporal_ef.named's own table
membership, then Christ the King wrongly reading false from an
over-broad fix) is closed with an explicit two-slug exclusion.
Domain-wide 1583-9999: every violet or Rose day is gloria=false except
the Easter Vigil (RG 431(c) lex specialis), every Requiem is
gloria=false, both measured exhaustively, zero exceptions. Mutation-
proved: disabling 431(c) reddens 8 tests including all four oracle
comparisons; disabling 238(c)'s feria-I-classis exclusion reddens
exactly the dedicated Ash Wednesday unit test, a genuine blind spot in
both oracle layers, reported rather than hidden.
Two open, cited findings, neither fixed here (out of this task's
"follow creed's exact seam" scope): a privileged Lenten/Passiontide
feria carrying one commemoration reads Gloria=true in the LMS Ordo but
Te-Deum=true/Gloria=false in FIUV -- the two oracles disagree with each
other, not merely with colitur (data/ef/expected-divergences-lms.sexp
L5, expected-divergences-fiuv.sexp F3); and a pre-existing, uncited
Colour.Violet bug on Rogation Monday/Tuesday in Temporal_ef.temporal,
surfaced by this comparison but root-caused as a separate defect (L6).
day/readings verified byte-identical against a build from the branch
tip before this task (v0.10.1's own tag predates an already-landed
bissextile fix that legitimately changed both, so it is not the right
baseline).
671 tests green (dune test); 678 with the exhaustive sweep
(COLITUR_EXHAUSTIVE_SWEEP=1 dune test --force, ~104s).
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The Missale Romanum's calendarium footnote for February (LT.txt:5011-5014,
scan-corroborated scan2.txt:3050-3058): in a leap year the sixth kalends of
March (24 February) is doubled rather than a 29th day appended, so St
Matthias moves 24->25 February and St Gabriel of Our Lady of Sorrows
27->28, with 24 February itself carrying no fixed office that year.
data/ef/expected-divergences-lms.sexp entry L3 tracked this as an open gap.
Implemented as the rubric's own general mechanism (every fixed entry from
24 through 28 February shifts one civil day later in a leap year), not as
"move these two named saints": the two readings are indistinguishable on
shipped data (nothing else is fixed in that window) and diverge only for a
future --overlay entry in the same range, which the mechanism reading
covers correctly and a two-saints special case would not. This project has
already been bitten once (RG 16(a)) by a rule implemented against shipped
data's coincidental shape rather than the rubric itself.
Kernel stays rite-agnostic: Rite.t gains a fixed_key field (Date.t -> (int
* int) option), the same seam easter already establishes, read only by
Layer.on_date's FIXED half -- the movable half (Easter_offset/Nth_weekday)
is untouched. Default is the identity mapping, an optional argument on
on_date, so every existing caller and every rite that supplies nothing is
byte-identical to before this field existed. Date.is_leap is exposed in
date.mli (already existed in date.ml) so the rite reads the kernel's own
single-sourced leap-year definition. The EF implementation lives in
Rite_ef.Temporal_ef.bissextile_fixed_key, fully cited, wired into
Rite_ef.context.
Blast radius, measured over the full 1583-9999 domain (Calendar.year run
twice per civil year, real fixed_key vs identity, every day diffed): all
2,041 leap years in the domain show a visible change for each saint;
6,983 individual liturgical days change total, zero unclassified, across
four shapes (Matthias vacates 24 Feb in 1,803 years / occupies 25 Feb in
1,811; Gabriel vacates 27 Feb in 1,699 / occupies 28 Feb in 1,670).
L3's own prior estimate (1,650 years, observed-outright only) is confirmed
close on the same definition (1,677 measured); the broader observed-or-
commemorated count is higher, not lower, showing the narrow estimate
undercounted visible impact rather than overcounting it.
The lectio differential (2005-2050 fixture) gains a new cited entry, C40
in data/ef/expected-divergences.sexp: lectio implements no such shift, so
every leap year in its window now diverges on the two shifted days (21
rows, not the naive 44 -- the comparator never compares commemorations, so
a side where the shifted saint has zero comparator-visible footprint on
both engines produces no row). The LMS Ordo's 2023-2024 fixture -- the
window L3 was originally found in -- now matches on the Creed comparison;
its formulary-override bucket count is corrected 182->181 (24 February
leaves the counted Proper population, becoming Own_slug-sourced). The
missalemeum oracle fixtures (2026-2027, 2038, 2035) cover no leap year and
are unaffected.
L3 is closed: converted from an active allow-list record to a prose
closure paragraph (L1's own precedent), citation preserved verbatim, fix
and measured blast radius recorded. The id-list assertion narrows to [L4]
alone, and the now-dead "2024-02-24" -> "L3" date mapping is removed.
Six golden values pinned across four new test cases: Matthias in a leap
year (both the vacated and occupied sides) and a common-year control;
Gabriel likewise, deliberately choosing a leap year where he is admitted
only as an ordinary commemoration rather than winning outright, a
different shape from Matthias's.
Mutation-tested: forcing fixed_key back to identity reddens exactly five
test cases -- the differential's Layer C count-pin (C40 drops to 0 actual
vs 21 expected), the LMS Ordo's Creed and formulary-bucket checks, and
both new golden pins -- confirming the tests actually exercise the fix.
Reverted; dune test, the exhaustive sweep, and make check are all green.
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L3 recorded that the leap-year shift rested on the LT.txt transcription
alone, the scans having been searched without result. It is in scan2.txt
at 3050-3058, OCR-damaged but unmistakable.
The earlier search missed it for a findable reason, now written into the
entry: the OCR mangles the saint and the keyword alike -- "Matthue",
"Cabrielis", "bi&sextili" -- so neither "Matth" nor "bissext" matches. It
turns up on the undamaged phrase "februarius est dierum".
Transcription and scan now agree, which makes this two witnesses of one
document rather than one. Still one document; the citation continues to say
calendarium rather than RG, because a calendarium footnote is what it is.
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Wires in the FIUV (Foederatio Internationalis Una Voce) Ordo for
2025-2026 as validation layer seven -- the first UNIVERSAL (not
diocesan) source in this project, and the first compiled by someone
other than the LMS editions' own Peter Day-Milne (Joseph Shaw, FIUV
President).
tools/extract_fiuv_ordo.ml hand-parses pdftotext's -layout dump of the
Latin-language ordo (no Str/regex, frozen deps). Three real parsing
traps were found and fixed by tracing actual false results against the
raw source, not assumed in advance:
- "Gloria" is also the first word of "Gloria Patri" (the psalm
doxology), which can appear INSIDE the very Mass clause being scanned
(Good Friday: "...omittuntur ps. Iudica me et Gloria Patri), Gloria,
sine Credo..."). Guarded by rejecting any "Gloria" hit whose next
token is "Patri".
- Christmas Day's own rubric uses the PLURAL "Missae"/"Missae" ("tres
Missae celebrantur..."), never the singular "Missa" every other real
day anchors on -- silently produced gloria=None/credo=None on the one
most doctrinally unambiguous day in the calendar until traced and
fixed, guarded in turn against "Missae defunctorum" (an unrelated
Requiem-prohibition notice appearing at the end of many day-blocks).
- The Vespers boundary (bounding the primary Mass option before a
second "Vel Missa" alternative or before Vespers information) missed
the ligature spelling "VESPERÆ", the dominant form in this source,
letting a whole day's trailing prose leak into the captured [praef]
field on the task brief's own worked example day (19 September).
A distinct second stop-marker bug: the malformed trailing entry this
source shares structurally with the LMS PDFs (a stray, mislabelled
duplicate of 1 January) was initially over-matched by a generic
"first token is 4 digits" heuristic, which false-positived on an
indulgence-decree date citation wrapped mid-sentence in October
("...20 augusti / 1885, 26 augusti 1886..."), truncating the extraction
to 308 of 400 real days. Fixed by anchoring on the tail entry's own
distinctive "1st Jan" opening instead.
Five opposite-prediction Creed probes are re-verified by the tool
itself against its own extracted rows (a failed probe is a hard exit,
not a printed claim) before the fixture is written.
test/test_fiuv_ordo.ml compares the Creed against colitur across all
399 comparable days (Holy Saturday excluded, no Mass that day) --
CLEAN, zero unexplained divergences, a genuine second confirmation of
{!Rite_ef.Rubrics_ef.creed} independent of the LMS lineage. [praef],
[te_deum] and [class_] (including the FIUV ordo's own "III cl." vs
"III cl. (Priv.)" Cum Sanctissima convention, stated on its title
page) are captured into the fixture but deliberately not compared --
colitur has no Gloria/preface predicate yet, and its default
configuration models no Cum Sanctissima overlay to compare the class
convention against.
All 634 tests green (dune test), 635 with the exhaustive sweep and
make check. No lib/ file touched.
Claude-Session: https://claude.ai/code/session_017ZBxCCRM2ojnBupp3SBxV9
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Generalises tools/extract_lms_ordo.ml's start-of-body detection: the
hardcoded "End of November 2024" sentinel assumed every edition opens
with an "End of November" stub section. The 2023-2024 edition has none
(Advent Sunday 2023 fell on 3 December, so the compiler folded the two
tail days into the "December 2023" header directly) -- the generalised
detector anchors on the body's own "ORDO" title line instead, verified
unique in all three known editions and distinct from the Table of
Contents' lowercase "Ordo" entries.
Extracts test/fixtures/lms-ordo-2023-2024.sexp (397 rows) and
lms-ordo-2025-2026.sexp (399 rows), each with a provenance header
carrying its own SHA-256, source citation, and a per-edition
characterisation record: five opposite-prediction Creed probes,
independently re-verified against this run's own extracted rows (a
failed probe is now a hard die, not a printed claim). The 2025-2026
edition needed a different sharp II-class pairing than 2024-2025's
Joachim/Stephen one, because Joachim (16 August) is impeded by a Sunday
that year -- recorded in the fixture header, not silently swapped.
test/test_lms_ordo.ml is refactored into a parameterised make_suite,
instantiated once per edition; every count Task 6 hardcoded against the
single 2024-2025 window is now a per-edition parameter, several of which
turned out to differ once measured (BVM-Saturday population 12/14/13,
Ascension-week exclusion 1/3/2). Two mapping gaps surfaced only by the
new windows and fixed here (test-side, not colitur): Low Sunday reached
via Preceding_sunday for the first time (absent from 2024-2025's own
window), and the Ascension-week exclusion was wrongly keyed off week
number alone -- Rogation Monday also resumes week 6's Sunday but falls
BEFORE Ascension, not after, and the Ordo prints the ordinary Sunday
text there. Re-bounded by date, against Ascension and Pentecost.
Two genuine divergences surfaced in the 2023-2024 window and are
allow-listed (L3, L4) rather than fixed, per this task's no-lib-changes
scope:
- L3 (verdict ordo): colitur has no bissextile calendar rule. The 1962
Missal's own calendarium moves St Matthias from 24 to 25 February in
leap years (docs/research/LT.txt:5011); colitur keeps him on the 24th
every year. Domain-wide upper bound measured with a throwaway sweep:
1,650 of 2,041 leap years in 1583-9999 currently observe him there.
- L4 (verdict open): Christmas Eve falling on the 4th Sunday of Advent
(2023-12-24, roughly 1 year in 7). colitur says the Creed is said,
reading RG 475(a)'s Sunday clause; the Ordo says it is not. RG 30(a)'s
own "locum tenet ... nulla fit commemoratio" for this exact vigil
reads like RG 16(a)'s Feast-of-the-Lord-on-Sunday shape, which colitur
already treats as Creed-preserving -- but RG 475(a) names "festo"
specifically, and a vigil is its own liturgical-day category (RG 35),
so the counter-reading is real too. Left open rather than adjudicated.
All 630 tests green (dune test), 631 with the exhaustive sweep.
Claude-Session: https://claude.ai/code/session_017ZBxCCRM2ojnBupp3SBxV9
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Task 6 (celebrant-rubrics-phase1) added test_lms_ordo.ml as a sixth
validation layer, comparing 400 days against a printed Latin Mass
Society Ordo -- a genuinely independent fourth lineage, never passed
through Divinum Officium/missalemeum/lectio. README.md's own table
still said "Five validation layers"; man/colitur.1 still said "two
published-calendar oracles"; CLAUDE.md still said "5 layers" in two
places and, worse, stated as fact that "the published Ordo... Not
wired in as a layer" in the file every future session is instructed
to read first.
Updated all three, describing what the new layer covers (the Creed,
the BVM Saturday votive Mass's own seasonal selection, the reading
formulary override) and what it cannot see (one civil year, only
three of the formulary axis's five sources, England & Wales diocesan
propers excluded from every comparison) -- consistent with
docs/research/ordo/PROVENANCE-lms.md, not overstating it.
CLAUDE.md's own stale claim is corrected in place, not silently
rewritten, matching the file's own established convention: the
paragraph it lived in was about a DIFFERENT, earlier Ordo (unreliable
PDF column extraction, still genuinely unwired for that reason), and
its own closing prediction -- "a structured Ordo would be the only
way to add a fourth lineage" -- is exactly what the LMS Ordo's
structured extractor (tools/extract_lms_ordo.ml) has since done.
Historical "five layers" mentions elsewhere in CLAUDE.md, describing
completed state as of earlier branches, are left alone -- they were
true then, and rewriting them would misrepresent the record the same
way overstating layer 6's own coverage would.
Left README's pre-existing v0.9.0/569-tests staleness untouched, as
instructed -- it predates this branch and is a separate matter.
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Task 5 (celebrant-rubrics-phase1) added a fourth rubrics column,
creed, and updated the man page for it. bin/main.ml's own built-in
--help was not: its "output formats" section and worked example still
showed three fields (date, formulary slug, source), and nothing
caught it because test/cli.t pins command dispatch but never the help
body.
Fixed the format line and its example, and added a short mention of
the creed column to the surrounding prose paragraph (source, format,
what --overlay/--lang/--raw do to it), matching the man page's own
account without copying it verbatim.
test/cli.t now cross-checks --help's own rubrics example against what
`colitur rubrics 2026` actually prints for the identical day, so the
two cannot silently drift apart again in either direction.
Mutation-proved: reverting the field count in --help alone (output
unchanged) reddens exactly this new check; reverted clean.
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The .mli promised said is "the slug whose Mass is said". For Votive
(RG 78/309(a), the Saturday votive Mass of Our Lady) it was set to the
day's own ferial slug -- whose Mass is exactly the one NOT said. A
consumer joining rubrics to readings on that slug would silently get
the wrong Mass: 2026-01-03 reports ef-christmas-1-saturday, which has
zero entries in data/ef/lectionary.sexp, because the citations
actually come from bvm_saturday_citations, a season-keyed function
with no slug of its own anywhere in the shipped data.
Chose the type-honest fix over the interim documentation one: said is
now Slug.t option, None exactly for Votive, because there is
genuinely no slug in the shipped data this field could report for
that one source. Adding real ids for the five seasonal BVM Masses
(the reviewer's first option) is out of scope -- a data restructuring
this round explicitly does not carry. Threading the office slug
through a second field was considered and rejected as redundant: the
day's own office is already available on the same Liturgical_day.t
via observed.slug, which every caller already has in scope regardless
of via, so said does not need to duplicate it.
colitur rubrics stays byte-identical: rubrics_line already has
d.observed in scope and falls back to its slug when said is None,
printing the exact value it always printed for a Votive row (verified
directly, diffed against pre-fix output across four years). colitur
day/readings are unaffected (neither reads Mass_formulary at all).
colitur emit --format sexp's pretty-printed line count for 2027 moved
9011 -> 9025: every day's formulary record widened by said's own
extra option wrapping, and to_string_hum wraps by column width.
Cosmetic only, diffed line by line to confirm every change is this
shape or a consequent wrap shift; recorded in test/cli.t alongside the
476(f) note it now sits next to.
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test_lms_ordo.ml's formulary-override check only asked WHETHER a
Preceding_sunday day showed a "Mass of ..." override line, never WHICH
Sunday it named. colitur could have resumed the wrong Sunday on all
66 such days and this layer would have stayed green -- resuming the
right Sunday is precisely what step 3 of the reading chain exists to
do.
test_formulary_override_matches now derives the Ordo's own expected
prose from Mass_formulary.t.said's own resolved slug (parsed directly,
no Str/regex) and compares it against the Ordo's real text. Two
narrow, evidenced exceptions, both counted rather than silently
absorbed:
- Christ the King's own Sunday reaches this population under a
NAMED slug (ef-christ-the-king) that carries no embedded ordinal;
its position among the Sundays after Pentecost varies by year, so
Temporal_ef.week is read for that one slug specifically, not
called generically (an earlier version of this fix read [week]
for every day and was wrong -- caught by its own assertion on the
very first run, because Time_after_pentecost's own last-Sunday and
surplus-Sunday renumbering diverge from the raw week count. Reading
the number back out of the already-resolved slug sidesteps both
special cases and is not tautological with the wrong-Sunday
failure mode this fix exists to catch).
- Three real days between Ascension and the following Sunday
(2025-05-30, 2025-06-02, 2025-06-03) are a genuine, newly-found
defect: colitur resumes the nearest calendar Sunday, but the
Missal, and the Ordo, keep saying Ascension's own Mass through
this stretch instead. Structural (Ascension is a fixed Easter+39),
not a fixture artefact, and not fixed here -- it needs a
lectionary-data change out of this fix round's own scope.
Documented in expected-divergences-lms.sexp as a prose-only note
(no active sexp record: this file's id-lookup machinery is scoped
to the Creed axis, and a second axis reusing it would let one
test's "declared but never fired" check spuriously trip on the
other's entry) and enforced directly by this test's own count
assertion instead.
Mutation-proved: offsetting step 3's Sunday lookup by an extra 7 days
reddens this test (23 failures total across the suite: layers 3-6,
golden pins, and lectionary_ef's own unit tests), confirmed via the
compiled test binary directly; reverted clean, full suite green again.
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colitur said the Creed IS said on All Souls' Day and every other
Requiem-shaped day: RG 475(b)'s "in festis I classis" branch fired on
rank alone, with nothing checking RG 476(f), "Non dicitur symbolum ...
f) in Missis defunctorum". Allow-listed as L1 in
expected-divergences-lms.sexp on the argument that [creed] has no
notion of a Requiem Mass in its inputs and could not express the rule
without a signature change.
That argument does not hold. Colour.Black is used by exactly two
celebrations in the whole engine, verified by grepping every
occurrence in lib/ and data/: commemoration-of-all-souls
(data/ef/sanctoral.sexp) and Good Friday (temporal_ef.ml, already
false via the earlier RG 23(b) feria exclusion and has no Mass at all
in the 1955-restored Holy Week). So on every day this engine can
construct, colour = Black if and only if the Mass is a Requiem -- a
citable implication (RG 117 assigns black to Masses of the dead) on
this data, not a heuristic.
Rite_ef.Rubrics_ef.creed now reads observed.colour as RG 476(f)'s own
guard, positioned ahead of 475(b)'s rank branch. A new test,
test_colour_black_population_is_exactly_two, sweeps both the shipped
data and Temporal_ef's own code across a century and fails loudly the
day a third Colour.Black celebration is ever introduced, so the proxy
cannot silently rot.
L1 is closed in expected-divergences-lms.sexp, citation preserved.
Blast radius, measured (full 1583-9999 sweep, grouped by observed
slug): 8 416 days change from true to false, every one
commemoration-of-all-souls (missing from exactly 1 of the 8 417 domain
years, a boundary-year transfer effect at 1583/9999). A further 8 416
Colour.Black days are Good Friday, unaffected (already false before
this fix). colitur day/readings stay byte-identical to v0.10.1
(checked directly against a v0.10.1 worktree build, 9 domain-spanning
years); colitur rubrics changes on exactly the 8 416 days above.
colitur emit --format sexp's pretty-printed line count for 2027 moved
9010 -> 9011 as a side effect: Sexplib.Sexp.to_string_hum wraps by
column width, and All Souls' Day 2027's record grew one wrapped line
because "false" is one character longer than "true". Cosmetic only --
no field's data changed -- and pinned in test/cli.t with the
measurement recorded.
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An independent lineage -- neither Divinum Officium, missalemeum nor
lectio -- covering the Mass formulary and the Creed. Characterised
before use, per the discipline the extraordinaryform.org Ordo's
blanket St Lawrence vigil gap taught this session: five opposite-
prediction Creed probes (Sunday/feria, octave-override vs plain
II-class, I-class) all confirmed against the raw extracted text
before a single divergence was adjudicated, recorded in the
fixture's own provenance header.
tools/extract_lms_ordo.ml hand-parses pdftotext -layout output (no
Str/regex, frozen deps) into test/fixtures/lms-ordo-2024-2025.sexp,
400 day-rows (2024-11-27..2025-12-31). Gl/Cr print per Mass-option,
not per day; the extractor takes the first pair in reading order,
which the source's own layout guarantees is the universal entry's,
since a diocesan variant always follows it, never precedes it. The
Ordo's I-V roman numeral ("Missae de sancta Maria in sabbato", RG
309(a)) is matched whole-line only, never by substring -- "V Mass of
BVM" is a substring of "IV Mass of BVM".
test/test_lms_ordo.ml compares two axes 1:1 by date:
- the Creed (RG 475-476): 399 of 400 days comparable (Good Friday
has no Mass at all, asserted as the only such day); one genuine
divergence, adjudicated to the ORDO, not colitur -- All Souls'
Day 2025-11-03 is a Requiem Mass, and colitur's own creed
predicate has no notion of one, a pre-existing scope gap
rubrics_ef.ml already documented in its own header before this
task existed.
- the BVM-Saturday seasonal Mass selection, the addendum's own
"sharper check": all 14 Votive days in the window match their
season's own numeral exactly, both directions, independently
re-derived from RG 309(a) rather than calling colitur's private
function.
- the formulary override, for the three sources it can honestly
discriminate (Proper 179, Preceding_sunday 66, Common 2, all
clean); Own_slug (139) is excluded with evidence, not silently --
several ferial slugs carry citations byte-identical to their
Sunday's own, so the Ordo's override line cannot distinguish the
two representations.
data/ef/expected-divergences-lms.sexp carries the one adjudicated
entry (L1), cited to RG 476(f).
Mutation-tested: inverting RG 475(a)'s Sunday clause reddens 10
existing Rubrics_ef unit tests AND this new layer's own comparator,
independently, on a data source none of the other five layers touch.
Reverted after confirming.
No lib/ changes. day/readings/rubrics output re-confirmed byte-
identical (1583, 2026, 2038, 9999) after this task; all three gates
green (dune test, exhaustive sweep, make check).
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rubrics_ef.ml's Creed check excluded feriae from 475(b)/(c)/(e) via an
explicit test for feria I classis (Ash Wednesday, Holy Week) and vigils
only. RG 24/25's feriae II and III classis (Advent 17-23 December, the
Advent/Lent/September Ember sets, the numbered Lenten/Passiontide
ferias) were excluded by no check at all, correct today only because of
an unstated Temporal_ef property (no ferial-origin office it builds
carries subject Lord/Bvm or an apostle-list slug). A comment read as if
this were established "by construction of the two exclusions
immediately above", which overclaimed: those two exclusions cover feria
I classis only.
Corrected the comments to name RG 24/25 explicitly, state what is and
is not checked, and cite where the real guarantee comes from. Added a
test that sweeps Temporal_ef.temporal across a century (1583-1682),
asserting the invariant directly against every ferial-origin day found,
with its own coverage counters confirming the span actually reaches
Advent 17-23, all three non-Whitsun Ember sets, and Lenten/Passiontide
ferias. The first run of the test found a real gap in its own
population filter (RG 17(a)'s 2 January Holy Name fallback, a genuine
feast sitting outside Temporal_ef.named for an architectural reason),
fixed by naming that date explicitly rather than narrowing the span.
Proved the test has teeth by mutation: forcing the ferial builder's
default subject to Lord reddened it (and 24 other tests, expected
collateral from an intentionally broad mutation) before being reverted.
No production logic changed -- only comments in rubrics_ef.ml. day,
readings and rubrics output confirmed byte-identical against the
pre-fix binary for four spot years across the domain. Also corrects a
stale test-case count in a prior task report (18 in the array, not the
19 recorded there); the array now genuinely holds 19.
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Whether the Creed is said at Mass. New Rubrics_ef.creed, reached through
a new Rite.t.creed field and a new Liturgical_day.t.creed bool (false,
not an option, for a rite that has not implemented the rule); colitur
rubrics gains a fourth TAB-separated column.
475(a) reads the TEMPORAL cycle's own weekday, not the observed day: a
Sunday impeded by a Feast of the Lord (RG 16a) still says the Creed.
475(d)'s three octaves (Nativity, Easter, Pentecost) are pure date/
Easter-offset windows, checked first, since a saint's feast winning the
day inside one of them still says the Creed ("etiam in festis
occurrentibus") -- St Stephen, 26 December, is the live witness.
RG 23 classifies Ash Wednesday and every feria of Holy Week (including
the Sacred Triduum) as feriae, not festa, however high their rank, so
475(b)/(c)'s "in festis" never reaches them; this single check subsumes
476(a)'s own naming of the Chrism/Lord's-Supper Mass and the Easter
Vigil. RG 28-34 vigils are a third liturgical-day category, also
excluded from "in festis" regardless of rank -- reuses the already-
exported Precedence_ef.is_vigil rather than a new list.
475(e)'s Apostle/Evangelist natalicia list (creed_apostle_slugs) was
derived by grepping data/ef/sanctoral.sexp directly and checking each
candidate's own date against whether it is that saint's dies natalis --
not copied from any list supplied with the task. The Conversion of St
Paul and the 30 June Commemoration of St Paul are excluded (neither is
a natalicium); the Chair of St Peter and St Barnabas are included only
because the clause names them explicitly, which is exactly why it has
to: neither is a natalicium either.
475(c)'s BVM half reuses Precedence_ef.marian_slugs (newly exported)
rather than the subject field alone: checked against the shipped data,
almost every Marian sanctoral entry ships subject=Saint, not Bvm.
man/colitur.1's rubrics section is updated to match the new column;
test/cli.t repinned via dune promote for the same reason. Verified
day/readings output byte-identical to v0.10.1 across the whole
1583-9999 domain (both binaries' concatenated day+readings output,
6,148,492 lines each, zero diff). Domain-wide: 882,996 days say the
Creed, 2,191,250 do not; every one of the domain's 439,178 Sundays says
it, zero exceptions.
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Separate from day for the reason readings is: a formulary name contains
spaces and day's row is space-separated with a variable-length tail.
Modelled on readings' own structure (year parsing, --overlay plumbing,
error handling): --overlay is accepted, since an overlay can change
which celebration is observed and hence which Mass is said. --lang,
--raw and --sigla-* are refused rather than silently ignored -- this
row resolves no display name and no citation for any of them to
affect.
Output is TAB-separated (date, formulary slug, source), not space or
" | " like the two existing reports: a resolved formulary NAME is a
column a later task may add, and it can carry both spaces and
punctuation a citation never does, ruling out either separator already
in use.
day and readings verified byte-identical (sha256) against a v0.10.1
build across 1583/1900/2026/2038/9999. Man page documents rubrics
beside readings and renders through groff with no errors.
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Fix round 1's own comment claimed the Latin Mass Society Ordo witnesses the
Votive tag directly, reading its "V Mass of BVM" as an abbreviation for
"votive". That was wrong: the Ordo's I-V are roman numerals naming WHICH
of the Missal's five seasonal "Missae de sancta Maria in sabbato" (RG
309(a)'s own "iuxta temporum diversitatem") is said on a given Saturday,
not a marker of the Mass's kind. All five numerals occur through the Ordo
(I x1, II x4, III x3, IV x3, V x8); the false reading came from "V Mass of
BVM" also being a substring of "IV Mass of BVM".
Votive itself is unaffected and stays correct on RG 431(e) alone, quoted
verbatim in its place: "e) in Missis votivis IV classis de Angelis,
quocumque die, et de B. Maria Virg. quae in sabbato celebrantur" -- votive
Masses of the IV class, of the BVM, celebrated on Saturday. The retraction
is recorded, not softened, in lectionary_ef.ml/.mli and the test pin's own
comment, together with what the Ordo's numeral actually means so the
mistake is not repeated, and the consequence it leaves behind: because the
numeral names WHICH seasonal Mass is said, a future comparison against the
Ordo (Task 6) can validate bvm_saturday_citations' own season-keyed
selection, not merely that some BVM Mass was chosen.
Comments and docs only -- no behaviour change. Both suites re-run green and
colitur day re-confirmed byte-identical.
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Mass_formulary.source was missing a case for a Mass said IN PLACE of the
day's own office's Mass while that office is itself kept unchanged -- RG
309(a) and RG 431(e) both classify the RG 78 Saturday Mass of Our Lady this
way, in the Missal's own words, as a "Missa votiva IV classis... de B.
Maria Virg.", not as the day's own office's Mass. The Latin Mass Society
Ordo (docs/research/ordo/lms-ordo-2024-2025.pdf) witnesses it directly,
printing that day as "V Mass of BVM".
The BVM-Saturday branch in Lectionary_ef.readings was tagged Own_slug for
lack of a better constructor when Task 2 landed, flagged there as a
judgement call rather than a specified answer. That call was wrong: left
as Own_slug, a future comparison against the LMS Ordo (a later task in this
plan) would read every BVM Saturday as a manufactured divergence between
colitur's "own" Mass and the Ordo's votive one. Retagged to Votive; said
is unchanged (still the day's own, reused ferial, temporal slug) since the
office itself is unaffected, only the Mass said for it.
Added the new constructor's source_to_string case ("votive") and its own
test row, and pinned the branch itself in test_lectionary_ef.ml's formulary
cases at 1 August 2026, verified directly against the resolver rather than
assumed.
Both this session's own drifted pins that the earlier commit inherited from
the task brief are unaffected by this change, and both are re-confirmed
independently correct in this round: dune test and the exhaustive sweep are
green, and colitur day stays byte-identical against the pre-fix-round
binary.
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Rite.readings now returns (Mass_formulary.t option * Citation.t list)
instead of a bare citation list, and Liturgical_day.t carries the result
as a new formulary field. Validate holds a rite that resolves a formulary
at all to resolving one on every day, the same discipline it already
applies to citations; the EF lectionary chain resolves Some on every day
of every year 1583-9999, confirmed by a direct sweep over 2005-2050 as
well as through Validate itself.
Plan Tasks 2 and 3 are merged into this one commit on the coordinator's
own instruction: Rite.readings' signature and the field that consumes it
are one atomic edit, and the intermediate state does not compile on its
own.
Each of the four lectionary steps now builds its own Mass_formulary.t at
the point it decides, not by re-deriving it afterwards from the citations
it returns: step 1 tags Proper with the observed slug, step 2 tags
Own_slug with the day's own temporal slug, step 3 tags Preceding_sunday
with the resumed Sunday's temporal slug, and step 4 tags Common with the
Common's own id -- Commons.find now returns that id alongside its
citations rather than discarding it, since it is only ever in scope at
the point the assignment is looked up.
The RG 309(a) Saturday votive Mass of Our Lady, which answers between
steps 4 and 2 rather than as one of the four numbered steps, is tagged
Own_slug too: Mass_formulary.source has no dedicated constructor for it,
and its own guard only ever fires when the observed celebration already
is the day's own (reused ferial) temporal slug, which is exactly what
Own_slug documents. Recorded as a judgement call in the task report, not
a specified answer.
test/cli.t's `emit --format sexp` line count is repinned (8472 to 8881):
that command serializes Liturgical_day.t whole, so the new field grows
its output. `colitur day` itself is untouched -- verified byte-identical
against the pre-change binary across 1583, 1900, 2026, 2038 and 9999.
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The lectionary's four-step chain already decides whether a day says its own
proper, its own slug's entry, the preceding Sunday's Mass or a Common, and
then discards that decision once the citations are out. An ordo needs to
print it.
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The Latin Mass Society Ordo 2024-2025 for England and Wales (v2.21,
compiled by Peter Day-Milne) gives 9 August 2025 as "OUR LADY on SATURDAY
IV Cl W / V Mass of BVM / Commem of St Romanus M at Low Mass" -- no vigil
-- and 10 August as the 9th Sunday after Pentecost with St Laurence
commemorated. That is colitur's output on both days, field for field.
It is discriminating where the Ordo already in docs/research was not. This
edition lists six vigils as the day's office across its year, including the
Assumption's on 14 August 2025, and its footnotes discuss arranging a
diocesan feast around the Vigil of St Laurence in other years. Its absence
on 9 August 2025 is an application of the rule, not a data gap. The
extraordinaryform.org Ordo omits that vigil on every date it covers,
including 2027-08-09 where the clause says to keep it, which is why it
witnesses nothing here.
Also confirms the Vigil of the Assumption as II Cl violet, the RG 128
colour this project corrected from the bootstrap's White.
The clause's other shape -- feast transferred away, 2022/2033/2038/2044 --
remains unwitnessed; no accessible Ordo covers those years. Stated in the
note rather than left implied.
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The last unbuilt clause in the EF module. A II/III-class vigil is omitted
entirely when the feast it precedes fails to keep its own day -- 1 744 days
across 1583-9999, three verified shapes, zero unexplained.
Rule and vigil inventory independently confirmed by O'Connell 1964, outside
the Divinum Officium -> missalemeum -> lectio lineage. The 10 affected days
in 2005-2050 are allow-listed as C39; no external day-level witness exists,
which the note states rather than glosses.
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Replaces the withdrawn Ordo claim with a real one of a different kind.
O'Connell, The Celebration of Mass (4th ed., 1964) -- a rubrics commentary
contemporary with the 1960 Code, outside the Divinum Officium ->
missalemeum -> lectio lineage, already cited here for RG 128 -- states all
three of RG 33's triggers in English, the third included, verbatim in
substance with the Latin.
The same passage confirms vigil_feast_table's membership independently:
Christmas Eve and Pentecost I class and so outside the rule; Ascension,
Assumption, John the Baptist and Peter & Paul II class; St Lawrence the
sole III-class vigil. Five entries, the same five, same class split.
It confirms the RULE and the ENTITY LIST, not the 10 days -- O'Connell
publishes no day-by-day calendar. The distinction is stated in the note
rather than blurred, since blurring it is what the withdrawn Ordo
paragraph did.
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C39 and the 2025 golden pin both claimed the published Ordo independently
confirms RG 33's third trigger, because it omits St Lawrence's vigil on
2025-08-09 where lectio and missalemeum keep it.
It does not. The Ordo omits that vigil on 2027-08-09 as well, where the
clause says to keep it (10 August is a Tuesday, the feast holds its day),
and 2026-08-09 is a Sunday where the rule's first trigger omits it anyway.
The 2024 date has no row. So the Ordo never shows St Lawrence's vigil on
any date it covers, and the 2025 agreement is a blanket gap coinciding with
the right answer, not evidence.
The rule itself is unaffected: it rests on RG 33's text, which admits no
latitude, and on lectio not evaluating the clause at all -- "RG 33" appears
nowhere in its production code, and the third trigger cannot emerge from
per-day rank comparison because it turns on what is observed the following
day. The divergence is architectural, not a disagreement about the rubric.
Recorded rather than deleted: the withdrawn claim is why this entry was
first written up as unusually well corroborated.
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The note apportioned the entry's ten rows as seven commemoration-reduced
and three transferred, counting 2038-06-23 in both halves to make the
arithmetic work. It is six and four; the row count itself was always
right, and is pinned by the comparator.
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Agent research reports, SDD ledgers and review packages, same local-only
reasoning as docs/. Untracked but not ignored until now, so they showed up
in every git status.
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RG 33 omits a II/III-class vigil in three cases: it falls on a Sunday, it
falls on a I-class feast, "vel si festum cui praemittitur in alium diem
transferri aut ad commemorationem reduci contingat". Only the first two
were built; the third was recorded in precedence_ef.ml as unimplemented on
the grounds that no witness existed in the shipped data. That reasoning was
wrong, and the rule fires on 1 744 days across 1583-9999.
Both halves of the clause reduce to one observable question -- is the feast
the OBSERVED office on the following day (RG 34 puts it there) -- so the
kernel asks it once per candidate, after place_transfers has settled the
year. No fixed point is needed: a vigil is a candidate only on its own day,
never on its feast's, so suppressing it cannot change what the next day
observes. Precedence.rules gains vigil_feast, which returns the slug of the
feast a vigil precedes; the kernel cannot infer that itself, because only
two of the five vigil/feast pairs share a slug stem.
Blast radius, measured pre-change binary vs HEAD over the whole domain and
classified: 1 744 days, three shapes, zero unexplained. 1 199 are the feast
reduced to a commemoration (10 August on a Sunday, St Lawrence); 478 and 67
are the feast transferred under RG 96 after the Sacred Heart or Corpus
Christi takes its day. The Assumption's and the Ascension's vigils never
qualify -- their I-class feasts always keep their own day.
Independently witnessed, which is unusual here. The published Ordo -- the
only witness outside the Divinum Officium -> missalemeum -> lectio lineage
-- omits St Lawrence's vigil on 2025-08-09, agreeing with colitur against
both engines. That date had been read earlier as an Ordo gap; the Ordo was
right, and correcting the misreading is what surfaced this clause. On
2027-08-09 the feast does keep its day and the Ordo omits a vigil colitur
correctly keeps, which is a genuine Ordo gap.
Allow-lists: C39 (lectio, 10 rows) and a 2038 oracle class citing the
register, the 2026-2027 window having no instance. The golden pin asserting
St Lawrence's vigil is violet moved 2025 -> 2027; its own comment had
reasoned about the vigil's weekday and missed that RG 33 also looks at the
feast's. Two new pins cover both shapes of the clause.
The vigil/feast table is built with Slug.of_string_exn: mutation testing
showed that of_string plus Result.to_option turns a typo into None, which
this hook's contract reads as "not a vigil", switching the rule off in
silence. Two tests assert the table against the shipped data in both
directions.
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