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* feat(of): post-2002 GRC amendment overlays, one file per decreeLukasz Kasprzak2026-08-2613-0/+578
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds data/of/amendments/*.sexp: 13 overlay files, one per decree, carrying the General Roman Calendar's amendments since the 2002 typical edition (docs/research/of/PROVENANCE-amendments.md's own 15-item inventory, items 10-12 sharing one decree; items 2 and 3, though issued the same day, carry different protocol numbers and are counted as two decrees). 14 Add directives (Padre Pio, Juan Diego, Guadalupe, John XXIII, John Paul II, Mary Mother of the Church, Paul VI, Loreto, Faustina Kowalska, Gregory of Narek, John of Avila, Hildegard of Bingen, Teresa of Calcutta, John Henry Newman) and 2 Edit directives (Mary Magdalene's rank memoria->festum; Martha/Mary/Lazarus's name widened, same slug, same date and rank -- a continuation of the existing memorial per the decree's own text, not a suppression and replacement). Mary, Mother of the Church is the one movable entry (Easter_offset 50, the Monday after Pentecost) -- verified against the decree's own text and against Colitur_kernel.Computus.gregorian_easter in three real years, no kernel change needed. data/of/calendar-2002.sexp is untouched, per spec sec4.1. Adds test/test_amendments_of.ml: every file parses, each has a pinned SHA-256, applying all 13 in decree order yields 222 entries (208 base + 14 Add) with an empty Overlay.merge diagnostics list, and Mary Mother of the Church resolves to the Monday after Pentecost in three real years. Two Precedence_of interactions are recorded, not fixed (out of scope for a data-only task): a movable Memoria_obligatoria can land on an existing fixed one (verified for 13 June 2011), a genuine band tie Normae n. 14 does not address and Precedence_of.ml does not implement; and adding Hildegard of Bingen changes which of two ad-libitum memorials on 17 September Precedence.resolve reports as observed, by alphabetical tie-break alone.
* fix(of): correct subject over-match, provenance truth, and stale hazard commentLukasz Kasprzak2026-08-251-25/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Four fixes from fix round 2 review: classify_subject's "maria"/"b.m.v" substring test over-matched 12 saints who merely carry "Maria" in their own name (Maximilian Mary Kolbe, John Mary Vianney, Mary Magdalene among them) as Bvm. Replaced with an explicit BVM_DATES table of the 13 genuinely Marian entries. Bvm 25 -> 13. The provenance header claimed lectio is "never a source", which omitted that slugs and English names both come from it. Corrected to state exactly what does (slugs, en names) and does not (every substantive field) come from lectio. A missing lectio file used to degrade silently to a different SHA-256 with no en names and no warning; it now fails loudly. lectio's own SHA-256 is now pinned alongside the Missal PDF's. Four more entries carried a second pdftotext artifact distinct from the letter-spacing already handled -- a combining diacritic rendered as a stray spacing character (Kim Taegŏn/Chŏng Ha-sang, Đũng Lạc, Makhlūf, Kęty). Hand-repaired the same way Peter Damian was, each corroborated by the identical corruption recurring in the Missal's own index. precedence_of.ml's PHASE 3 HAZARD comment about All Souls (2 November) was asserting a gap that no longer exists now that OF sanctoral data ships. Added test_all_souls_beats_an_ordinary_sunday, which resolves the shipped All Souls entry against a real per-annum Sunday (2025-11-02) through the actual Precedence.resolve pipeline, and updated the comment to record the resolution instead of demanding it.
* fix(of): add the Sacred Heart of Jesus and Immaculate Heart of MaryLukasz Kasprzak2026-08-251-6/+22
| | | | | | | | | | | | | | | | | | | | Both are printed in the 2002 calendar table, immediately after 30 June, as prose headings rather than (kalends, day) rows -- the shape parse_rows' generic movable-heading skip branch was built for, which is why the first pass silently dropped them. They belong in the transcription, not in Temporal_of: adding them completes the table this file transcribes rather than amending the temporal cycle. Produced as Date_spec.Easter_offset entries (68 and 69 respectively), the same variant already used for EF's Rogation Wednesday and needing no kernel change. Pentecost is Easter+49, so the Friday and Saturday after the Second Sunday after Pentecost are Easter+68/+69 -- verified against three real Easter dates (2026, 2027, 2035), not merely computed on paper. The extractor now recognises these two headings specifically among the seven "Dominica/Feria/Sabbato ... :" headings the table contains; a full audit of the other five confirms each is already covered by Temporal_of and correctly stays excluded here. 206 -> 208 entries.
* feat(of): transcribe the 2002 General Roman CalendarLukasz Kasprzak2026-08-251-0/+1294
| | | | | | | | | | | | | | | | | Extracted from the Latin typical edition, which is the authority; lectio's roman-calendar.ini is a cross-check only and every divergence is adjudicated against the Missal in the provenance header. A blank grade column means Memoria ad libitum, per the calendar's own footnote, rather than a missing value. 206 entries; 1 January, 6 January and 25 December are deliberately excluded because Temporal_of.named already computes them, and shipping them here too would create a duplicate candidate for the same day. Colour is derived from IGMR n. 346, cited per class in the extractor; the lectio cross-check surfaces one rank divergence (22 July, Mary Magdalene -- lectio reflects the 2016 post-2002 elevation decree, out of scope here) and 17 colour divergences, all adjudicated in the provenance header.
* test(of): validate Phase 1's Ordinary Time resumption against litcalLukasz Kasprzak2026-08-251-0/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* docs(E3,E4): pro aliquibus locis, not sanctoral gapsLukasz Kasprzak2026-08-241-0/+32
| | | | | | | | | | | | | | | | | | 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.
* feat(ordo): wire the extraordinaryform.org preface column in as a third witnessLukasz Kasprzak2026-08-241-0/+175
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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).
* fix(ef): ferias after the Ascension repeat its own Mass, not a Sunday'sLukasz Kasprzak2026-08-223-3/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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).
* fix(ef): Rogation Monday/Tuesday are white, not violet (RG 119)Lukasz Kasprzak2026-08-221-7/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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).
* fix(ordo): correct L5/F3 misadjudication -- Cum Sanctissima, not a gapLukasz Kasprzak2026-08-222-52/+236
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* docs(F1): settle the Good Friday Gloria on the source's own evidenceLukasz Kasprzak2026-08-221-0/+26
| | | | | | | | | | | | | | | | | | | | 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.
* feat(ef): the Gloria in excelsis, RG 431-432, deferring to Breviary 237-238Lukasz Kasprzak2026-08-222-7/+213
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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).
* feat(ef): implement the calendarium's bissextile February shiftLukasz Kasprzak2026-08-222-7/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* docs(L3): the bissextile rubric is scan-verified after allLukasz Kasprzak2026-08-221-1/+1
| | | | | | | | | | | | | | | 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.
* test(fiuv-ordo): add the FIUV universal Ordo as a second, independent witnessLukasz Kasprzak2026-08-221-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* test(lms-ordo): extend the LMS witness layer from one year to threeLukasz Kasprzak2026-08-221-10/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* fix(ef): RG 476(f) -- the Creed is not said at a Requiem MassLukasz Kasprzak2026-08-221-36/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* test(ef): the LMS Ordo as a sixth validation layerLukasz Kasprzak2026-08-221-0/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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).
* docs(C39): day-level confirmation from the LMS OrdoLukasz Kasprzak2026-08-211-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | 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.
* docs(C39): O'Connell 1964 confirms the rule and the vigil inventoryLukasz Kasprzak2026-08-211-1/+7
| | | | | | | | | | | | | | | | | | | 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.
* docs(C39): withdraw the Ordo corroboration claimLukasz Kasprzak2026-08-211-1/+3
| | | | | | | | | | | | | | | | | | | | | | 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.
* docs(C39): correct the shape split, 7/3 -> 6/4Lukasz Kasprzak2026-08-211-1/+1
| | | | | | | 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.
* feat(ef): implement RG 33's third omission triggerLukasz Kasprzak2026-08-211-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* test(differential): C14 and C15 closed -- only slug vocabulary remainsLukasz Kasprzak2026-08-181-10/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lectio adopted the last two Missal corrections colitur argued: C14 3 -> 0 RG 96(a)/97/98. lectio resolved each impeded I-class feast's transfer independently, so in 2008, 2035 and 2046 St Joseph and the Annunciation both walked onto the Monday after Low Sunday and Joseph, losing there, was observed on no day of those years at all. It now resolves the year's transfers as a set: the Annunciation takes the Monday as its sedes propria, Joseph the Tuesday. C15 7 -> 0 The Holy Family propers' own 13-January rubric, "sine commemoratione Baptismatis D.N.I.C.". lectio kept the Baptism as the observed office on all seven such years in 2005-2050. Those were the last two BEHAVIOUR classes. What is left is C1 (138) and C6 (119), both pure slug vocabulary. Measured across the whole fixture, applying only the season normalisation the test already applies: 579 of 16801 days differ, and every one of them differs on the SLUG ALONE. Zero days differ on season, rank, colour, Epistle or Gospel. (The test's own norm_slug table already maps 322 of the 579; the 257 left are C1 and C6. The field profile is the same either way.) So the two engines now agree on every liturgically meaningful field on every day of 2005-2050. The residue is what the two projects call things -- ef-christmas-2-friday against ef-time-after-epiphany-1-friday for the same day, same Mass. Aligning it means renaming lectio's slugs, and those are keys: its lectionary, clectio's generated tables and any user overlay are built on them. Left as vocabulary rather than forced. Fixture refreshed against lectio e713da2; 13 rows changed, colitur agrees with all of them. 24 divergence classes at the start of this work, 2 now.
* test(differential): C31 closed -- 4 classes left, 257 of 267 rows are namingLukasz Kasprzak2026-08-181-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | The ferias between Epiphany and the first Sunday after it repeat Epiphany's own Mass in lectio now; they had been taking the Mass of the Sunday that follows them. C31 98 -> 0 C1 40 -> 138 grew, and changed character C1 is now SLUG VOCABULARY ONLY, and its note says so. Season, rank, colour and both citations agree with colitur on every day of the January window; what differs is the identifier -- ef-christmas-2-thursday against ef-time-after-epiphany-1-thursday for the same day with the same Mass. C6 is the same shape. That is 257 of the 267 remaining rows. Aligning the vocabularies would mean renaming lectio's slugs, and those are keys: its own lectionary, clectio's generated tables and any user overlay are built on them. Recorded as vocabulary rather than closed, because the rows do differ -- just not in anything a reader of either engine's output sees. Measured for 2026: season, rank and colour agree on all 365 days; 14 days differ and every one differs on the slug alone. 5 classes -> 4, agreement 98.4%.
* test(differential): C20 and C38 closed -- agreement 98.4%Lukasz Kasprzak2026-08-181-29/+10
| | | | | | | | | | | | | | | | lectio carries the readings of the nine Common-routed saints and of three more that had proper Masses but no reading at all. Every day of 2005-2050 now resolves a reading there; four days used to come back empty. C38's own note said it could not close without lectio gaining a Commons concept. The readings arrived instead of the abstraction, which was enough: each Common resolves to one first/gospel pair for the saint that names it, so a table plus assignment layer would have bought indirection and nothing else. C20 14 -> 0 C38 70 -> 0 7 classes -> 5, 351 rows -> 267, agreement 97.9% -> 98.4%.
* test(differential): seven classes closed -- agreement 93.9% to 97.1%Lukasz Kasprzak2026-08-181-44/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lectio gained the Passiontide week split and thirteen lectionary entries. C23 230 -> 0 Holy Week's own six Masses C32 99 -> 0 C35 60 -> 0 the first weeks after Epiphany and Pentecost (RG 299) C33 46 -> 0 Corpus Christi C34 46 -> 0 the Sacred Heart C26 43 -> 0 Passion Tuesday C19 7 -> 0 the Holy Family week-index residue C1 75 -> 40 C31 63 -> 98 GREW The Passiontide split is the one that carried most of this. efWeek had no Passiontide case, so both weeks numbered 0 and every day of Holy Week took the slug of its Passion-week namesake -- one set of readings for two weeks with entirely different Masses. Good Friday was reading Passion Friday's. C31 growing is the same bookkeeping as C1's earlier growth and is recorded in its own note: C32 and C35 closed, and rows that carried several causes now carry only this one. Nothing new disagrees. 17 classes -> 10, 1019 rows -> 488, agreement 93.9% -> 97.1%. What remains is almost entirely NAMING rather than disagreement: C6 (119) is colitur's ef-nativity-octave-day-N against lectio's ef-christmas-N-weekday on days where both now read the same Mass, and C1 (40) is the same shape in the January window.
* test(differential): C8 closed, C6 narrowed to namingLukasz Kasprzak2026-08-181-6/+8
| | | | | | | | | | | | | | | | | | | lectio gained Rogation Monday and Tuesday (RG 87, violet under RG 128(d)) and the Missal's own Mass for the weekdays within the Octave of the Nativity ("Diebus infra octavam Nativitatis Domini", Titus 3:4-7 / Luke 2:15-20). C8 26 -> 0 CLOSED C6 119 -> 119 narrowed: the cause halved, the count did not C6 is worth reading carefully rather than skimming the number. Its rows no longer differ on First_f or Gospel_f at all -- the two engines now read the SAME Mass on 29-31 December, where lectio previously served the Sunday's. What is left is Slug_f alone, colitur's ef-nativity-octave-day-N against lectio's ef-christmas-N-weekday. That is vocabulary, not disagreement. The count did not move because the entry's gate already admitted a Slug_f-only subset, which is exactly the case where a row count is a misleading summary. 17 classes, 1019 rows, agreement 93.9%.
* test(differential): C17 closed -- the largest divergence class is goneLukasz Kasprzak2026-08-181-15/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | lectio built the votive Office of Our Lady on Saturday (RG 78) and then said RG 309(a)'s own Mass for it. Both halves were needed: RG 78 keeps the office and gives it white, RG 309(a) picks among the Missal's five seasonal formularies. Fixing only the first leaves the day announcing Our Lady and reading the feria's Mass -- the bug colitur itself shipped briefly and fixed in its v0.3.0. C17 439 -> 0 CLOSED -- the largest class between the two engines C31 103 -> 63 Saturdays that carried both causes; only this one left C35 69 -> 60 same C1 35 -> 75 GREW C1 growing is not a regression and is recorded as such in its own note: the January Saturdays C17 used to absorb now differ only on the slug vocabulary C1 already covers, so they land there instead. Rows moved between entries as the larger cause was removed. Also in this refresh, from the same session: weeks after Epiphany now count from the first Sunday after it rather than from 6 January, which took C19 from 35 to 7 -- what remains there is the Holy Family interaction, a different cause needing RG 17(b) in lectio. 19 classes -> 18, 1493 rows -> 1045, agreement 91.1% -> 93.8%.
* test(differential): refresh the fixture -- three more corrections adoptedLukasz Kasprzak2026-08-181-16/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | lectio has taken three further corrections colitur argued from the Missal: the twelve RG 124 colours (red is for Apostles, Evangelists and Martyrs, and missalemeum had the rule inverted in both directions), Good Friday's black under RG 128(b) with RG 132, and RG 72's Christmas Time boundary at 13 January inclusive. 864 rows changed. Two classes closed outright and two moved: C18 450 -> 0 the RG 124 colours -- the LARGEST single class in this file C36 46 -> 0 Good Friday's colour C1 159 -> 35 the season boundary stopped differing C23 184 -> 230 Good Friday's rows fold back, the split no longer needed C36 is closed rather than kept at zero because the split it represented has dissolved: it existed only to hold Good Friday apart while its diff set had a third member, and with the colour agreeing the rows are the exact pair C23 has always gated on. Restoring 230 is not a regression, it is the number returning to what it was before the split. Cited classes 24 -> 19, divergent rows 2252 -> 1521, agreement 86.6% -> 90.9%. The percentage is again the least interesting part. C18 alone was 450 days on which the two engines agreed about nothing and now agree because both apply RG 124 the same way round.
* test(differential): refresh the lectio fixture -- the lineage invertedLukasz Kasprzak2026-08-181-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Every previous refresh of this fixture carried lectio's answers TO colitur, because colitur's data was bootstrapped from lectio. This one carries colitur's answers BACK. lectio has merged eight field corrections colitur argued from the 1962 Missal: ubaldus and didacus promoted from commemoration to III-class feast on the Missal's own calendarium, both August vigils recoloured violet under RG 128, and both Ember Saturdays' readings, which lectio had carrying St Thomas's and St Matthew's Masses respectively. 227 of the 16801 rows changed. Three cited classes went to zero and are CLOSED and REMOVED, citations preserved in the register, the same discipline C2-C5, C7, C9-C13, C21, C22 and C25 already record: C27 40 -> 0 the Advent Ember Saturday's readings C28 40 -> 0 the September Ember Saturday's readings C37 77 -> 0 the two vigil colours C37 is worth noting by name: its own note called the shared lineage "the sharpest demonstration in the project", colitur and lectio and missalemeum all carrying the same two wrong colours. Two of the three now carry the right one. C38 NARROWED rather than closed, and the distinction matters. Its identity half is gone -- lectio ranks both saints class-3 now -- but the same 70 rows still differ on readings, because both saints take their Mass from a Common and lectio has no Commons concept to resolve one. It is gated on diffs = [First_f; Gospel_f] exactly, which is C18's shape. It cannot close without lectio gaining a capability, which is a feature rather than a fix. Net: 24 cited classes to 21, 2252 divergent rows to 2095, agreement 86.6% to 87.5%. The number that matters is not the percentage though -- it is that those 227 days now agree BECAUSE BOTH ENGINES FOLLOW THE MISSAL, where before they agreed because both inherited the same errors from Divinum Officium. That is the failure mode CLAUDE.md's lineage note describes, resolved rather than documented, for the first time in this project.
* fix(examples): pin the three Polish classes from the source, one was wrongLukasz Kasprzak2026-08-181-14/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | The first version of poland.ini marked three classes INFERRED because the ordo's class column sits several lines below its own date row and the first extraction pass did not reach it. All three are now read from the source: Our Lady Queen of Poland class-1 (line 1114), St Stanislaus class-1 (1233), Our Lady of Czestochowa class-1 (2398). One of the three inferences was WRONG. Czestochowa was written class-2 as "the conservative reading"; the ordo gives class-1. The mistake was treating the ordo's "part." marker -- particular, proper to certain places rather than universal in Poland -- as implying a lower rank. Those are different axes. The extraction method was validated before being trusted, against two entries whose class was already known from a clean single-line row: St Adalbert class-1 and St Andrew Bobola class-2. It reproduced both. Visible consequence, and it is correct: at class-1 Czestochowa no longer commemorates St Zephyrinus, because RG 111(a) admits no ordinary commemoration on a I-class day. The ordo also names the particular sees each patron is proper to -- Stanislaus for four archdioceses and three dioceses, Queen of Poland for Czestochowa and Przemysl and the military ordinariate -- which is now recorded beside them, and which reinforces the header's existing warning that a diocesan calendar is not a national one.
* feat(examples): ship two real local calendars, with their limits statedLukasz Kasprzak2026-08-183-1/+275
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Poland and the Benedictines, in the flat INI form, installed beside the invented diocesan example. poland.ini -- 17 entries from the Calendarium Perpetuum pro Dioecesium Poloniae (1964), promulgated under Rubricarum instructum and applying to the 1962 Missal. Transcribed from a published Polish EF ordo that names that same calendar, cross-checked against missalemeum's supplement page for the two formularies 1964 added (13 and 15 July). Date, Latin name and class were read from the source for every entry; three classes could not be recovered from the PDF's column layout and are marked INFERRED where they appear, with the reasoning. The header carries an edition warning that is a real trap here: the Proprium Poloniae of 1921 and 1934 is still bound into many missals and carries an outdated arrangement of dioceses and ranks. It is not this calendar, and it is exactly the kind of plausible wrong-edition source that has cost this project time before. benedictine.ini -- two entries, and the comment explaining why is the point of shipping it. Counted across the Norcia ordo: 86 "I cl.", 43 "II cl.", ZERO "III cl." and ZERO "IV cl.", against 103 "Semidup." and ~96 "Dup.". The monastic rite uses the Roman classes at the top and the older Duplex / Semiduplex grades below, exactly where the Roman calendar has III and IV class. colitur's rank vocabulary cannot express those, so most Benedictine propers cannot be written here at all -- a mismatch of vocabularies between related rites, not a gap in the data. Rather than invent a Duplex -> Class3 mapping the source never states, that file ships only what its ordo gives in Roman terms and lists roughly two dozen excluded feasts BY NAME, so the omission is visible instead of silent. Both headers say plainly that they are examples and not authorities: they are transcriptions from published ordines, none of the five test layers can vouch for either, and both should be checked against the reader's own ordo. The cram test asserts only what we control -- that they parse, convert and apply -- and says so. They also demonstrate the precedence engine on real data: the Benedictine Transitus is I class and takes 21 March with the Lenten feria commemorated, and Maurus is II class and takes 15 January with Paul the First Hermit commemorated.
* fix(ef): ubaldus and didacus are III-class feasts, not commemorationsLukasz Kasprzak2026-08-184-9/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both carried rank Class3 with status Commemoration_only, bootstrapped from lectio, which inherits it from missalemeum, which is generated from Divinum Officium. The Missal's own universal calendarium ranks both "III classis" outright, with no commemoration rubric: "S. Ubaldi Ep. et Conf., III classis" (16 May) and "S. Didaci Conf., III classis" (13 November), corroborated in the second scan and in a published 1962 Ordo. Universal by construction, not by assumption: the calendarium carries no "pro aliquibus locis" marker in its 573 lines while the wider Missal carries 79 of them elsewhere. Each saint also has his own Mass entry in the Proprium, which a bare commemoration never has -- a commemoration carries an oration only. Found by auditing ALL 290 fixed-date entries against that calendarium, day by day, anchored on the Roman calends column because the arabic day column is OCR-wrecked and the dominical-letter column vanishes in some months. These two were the only status defects in the whole file. The 15 days the automated pass could not cover were read by hand and all agree. Neither needed a proper authored: each takes its Mass from a Common with only its own Oratio proper, per its own rubric at its own date. ubaldus shares patrick's Common exactly. didacus needed one newly transcribed -- common-of-a-confessor-not-a-bishop-2, the "Altera Missa" Iustus, 1 Cor 4:9-14 and Luke 12:32-34, read independently in both scans, which agree, so the page-image third reading this file's method requires on disagreement was not triggered. Blast radius, full 1583-9999 sweep, every day classified: 13 036. That is 5 564 ubaldus observed, 7 196 didacus observed, and 276 where the Ascension Vigil still wins on 16 May but its single RG 111(c) slot passes from rogation-wednesday to ubaldus -- correct and already pinned, since the Rogation days are the MINOR Litanies and so an ordinary commemoration, which RG 113's table order ranks below a III-class feast. Cited as C38 (70 rows) and M30 (3); C8, C17 and M18 shrink accordingly, each with the reason recorded rather than the count silently adjusted.
* fix(ef): the Assumption and St Lawrence vigils are violet (RG 128)Lukasz Kasprzak2026-08-183-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RG 128, transcribed in the rules register since 2026-08-11, gives violet to "vigils of II and III class outside Paschaltide". The Vigil of the Assumption (14 August, II class) carried White and the Vigil of St Lawrence (9 August, III class) carried Red. Both are outside Paschaltide, so both are violet. The Ascension's vigil is untouched: it is the one II-class vigil inside Paschaltide and was already correctly white. The rule had been sitting in the register, disagreeing with the shipped data, since before the data was bootstrapped. It was invisible because colitur, lectio and missalemeum all carried the same two wrong colours -- colitur was bootstrapped from lectio, lectio's ini is generated from missalemeum, and missalemeum uses Divinum Officium's data files. Three sources agreeing is one source counted three times, and the differential and the oracle both went green on the shared error. It surfaced only against witnesses outside that tree: a published 1962 Ordo flagged the Assumption's, and O'Connell, The Celebration of Mass 4th ed. (1964), section 4(c) and footnote 169, gave the general rule and with it St Lawrence's, which the Ordo omits entirely. Two golden pins added, in years where each vigil is actually observed rather than impeded. The divergence this creates against every DO-lineage source is cited in both allow-lists: C37 (lectio, 77 rows -- 92 possible minus 15 where the vigil falls on a Sunday) and M29 (missalemeum, 3 rows in 2026-2027 and 2 in each of 2035 and 2038). Both gated on the exact slugs or dates and on colour alone, so any other divergence on those days would still surface. Also recorded, no code change: rose on Gaudete and Laetare stays. RG 131 is permissive ("adhiberi possunt") and the Ordo prints violet, so the colour field carries a permission rather than a requirement on those two Sundays a year -- a decided position now, not an unexamined one.
* fix(ef): Good Friday is black, not violet (RG 128(b), RG 132)Lukasz Kasprzak2026-08-181-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | RG 128(b)'s own exception list, transcribed in the rules register and primary-source-verified since Task 16, excepts "Actione liturgica feria VI in Passione et Morte Domini usque ad Communionem exclusive" from the violet that otherwise runs from Septuagesima to the Easter Vigil. RG 132 assigns black there. The register recorded this as an acknowledged gap rather than a disputed reading -- the code comment beside the Holy Thursday exception says so in as many words -- and it is closed here. Found by two witnesses outside the Divinum Officium lineage that colitur, lectio and missalemeum all share: O'Connell, The Celebration of Mass, 4th ed. (1964), revised throughout to the Codex Rubricarum (1960) and the 1962 Missal, and a published 1962 Ordo. Both say black. So does missalemeum's own colour set, which orders the day "bv". The rubric is per-action ("usque ad Communionem exclusive") and the model emits one colour per day; black is the day's principal one, the same acknowledged limit RG 126's Palm Sunday blessing already carries. Blast radius: one day per year, colour only, across the whole 1583-9999 domain. Two golden pins re-pinned. Good Friday's 46 differential rows leave C23 for a new C36 gated on the exact triple [First_f; Gospel_f; Colour_f], so C23's own exact-pair gate still means what its note says for its remaining four days: 184 + 46 = 230, no residue, both counts from the comparator rather than hand-counted.
* docs(ef): close C6 and M26; nothing is left adjudicated against coliturLukasz Kasprzak2026-08-182-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | C6 was closed by the Nativity-Octave fix rather than by argument. Its own note had already split the 138 rows into 119 weekday rows, where it recorded colitur's citation as confirmed correct and said verdict colitur would be accurate for that subset alone, and 19 Sunday rows where colitur emitted the weekday formulary against RG 69 and was plainly wrong -- a Temporal_ef defect the entry deliberately left out of its own scope. That defect is fixed, and the count fell 138 to 119: exactly the population the note had enumerated by date. Verdict open becomes colitur on reasoning already written there. M26 closed on a positive argument, not an absence. Both its other shapes are now built -- the BVM Saturday Mass selection and Trinity's week -- leaving Christ the King's week. RG 299's rule has an escape clause and the escape requires an assigned proper Mass; none is assigned for that week, checked at the source, unlike Trinity's week which prints one and unlike Holy Name and Holy Family which each carry a ferial rubric. That absence is not a research gap, it is the condition that triggers RG 299's default -- and by the default the ferias say the preceding Sunday's Mass, which on this week is Christ the King's own. The limit is stated in the entry rather than glossed: this reads a printed silence as the default rather than as an oversight, which the text cannot distinguish. It is the same reading applied everywhere else RG 299 governs, and applying it inconsistently here to match an oracle already adjudicated wrong six times would be the worse error. No entry in either allow-list is now verdict open or verdict missalemeum. The only non-colitur entries are M15 and M18, both unresolvable, and both are comparator limits rather than calendar disagreements: a temporal-origin celebration carries no English name, so its identity cannot be matched even where both streams plainly mean the same thing. Register: section 6.18.
* fix(ef): days within the Octave of the Nativity, and RG 69 for 29-31 DecLukasz Kasprzak2026-08-182-9/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | M11 was the one entry in the missalemeum allow-list adjudicated against colitur, and it was right to be. The calendarium directs "Com. octavae Nativitatis" under each of 26, 27 and 28 December (LT.txt:5454-5459) and RG 109(c) makes a commemoration of the days within the Octave privileged. colitur emitted none. The cause was a reasoning error stated in Temporal_ef's own comment: "26-28 Dec are Stephen, John and the Innocents, hence sanctoral". Their office is sanctoral -- those II-class feasts win the day -- but they remain days WITHIN the Octave (RG 67, "Dies infra octavam sunt II classis"), and colitur built them as generic Class4 ferias. With no octave-day candidate there was nothing for the feast to be commemorated over. Building days 2-4 exactly as days 5-7 always were makes the commemoration fall out of the existing machinery rather than needing a special case: the feast wins on rank, the octave day loses, RG 109(c) privileges it, RG 111(c)'s single slot goes to it. A second, independent defect surfaced while fixing it. The octave-day branch covered 29-31 December unconditionally, so a Sunday falling there got a feria identity -- where RG 69 says a Sunday occurring 26-31 December SEMPER keeps its own office and commemorates the feast. Confirmed against the oracle rather than argued: missalemeum shows "Sunday in the Octave of Christmas" on 2035-12-30, a Sunday, where colitur showed a feria. Both named and anchors now exclude Sundays; anchors had asserted the octave slugs unconditionally and was wrong the same way. Blast radius, full sweep against the pre-change binary: 25251 days, every one 26-31 December, exactly two shapes, zero unclassified -- 21653 carrying an octave-day slug and 3598 that are all Sundays, the RG 69 correction. Allow-lists: M11 closed and removed. C6 narrowed 138 to 119, nineteen of its days having changed temporal identity rather than verdict. M15 widened 18 to 22 -- both streams now commemorate the octave, but the candidate is temporal-origin and carries no English name to match against missalemeum's own, this entry's documented limit on four more dates. Stated rather than glossed: this trades a substantive divergence, colitur omitting a commemoration the Missal directs, for a comparator limit, the commemoration existing but not being name-matchable. That is a real improvement, but what the oracle now proves is that both streams commemorate something on those days; the identity rests on the rubric and the calendarium. Register: section 6.17.
* feat(data): ship a worked example overlay calendarLukasz Kasprzak2026-08-182-1/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `--overlay` shipped last week with nothing to point at. The only example was a test fixture, explicitly labelled invented and living where no user would find it, so "colitur supports local calendars" was true but undemonstrated. data/ef/examples/diocesan-example.sexp is installed to <prefix>/share/colitur/examples/ and is runnable documentation: every celebration in it is invented, with example- slugs that cannot collide, and its header explains the four directives, the three date shapes, and the field vocabularies before showing any of them. It demonstrates the range deliberately rather than the minimum: a fixed-date local patron with its own propers; a movable dedication on the first Sunday of October, I class because a church's own dedication anniversary is I class in that church and at III it would lose to the Sunday every year; an Easter-relative commemoration; an Edit raising a universal feast for local use; and a Suppress shown commented out, because suppressing a universal feast is a real liturgical act and an example should not invite it casually. Two things the header says plainly, since this is the one file that lets someone change what colitur computes: an overlay is applied ON TOP of the shipped calendar and never instead of it, and an overlay is applied, NOT validated -- the five test layers assert things about the shipped data and cannot vouch for a user's file. A test asserts it loads against the real EF rank vocabulary, still demonstrates at least four directives, and applies with NO diagnostics. The last matters most: a directive naming a slug the universal calendar lacks would warn, and an example that warns teaches the wrong lesson. It deliberately does not pin which days it produces -- those celebrations are invented, and pinning their dates would make an illustrative file behave like calendar data.
* docs(ef): M13 adjudicated colitur; Mass I is unreachable, not unwitnessedLukasz Kasprzak2026-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two open questions closed, both by looking rather than reasoning. M13 listed three possibilities for 19 March 2027 and stayed open because none was confirmed. The live one was (b): a rubric at St Joseph's own Proprium Sanctorum entry overriding the general table, "the same shape as the Annunciation's own Attamen clause", its text simply not yet found. It was looked for directly. Joseph's entry runs from its heading straight into the Introit with no rubric of any kind -- and the analogue does not exist where the note placed it either: the Annunciation's entry does the same. That exception lives in RG 96, a general rubric about transferring an impeded I-class feast, not in its propers, so there is no precedent for a propers-level override at all. With (b) eliminated and (c) still unsupported, (a) stands: RG 91 ranks a I-class feast above a III-class Passiontide feria, Joseph is not impeded so RG 96 never engages, and colitur observes him. Recorded with its limit, because this is elimination and not proof: the specific hypothesis named is false, which is weaker than showing no rubric anywhere says otherwise. Separately, the note that Mass I of the BVM Saturday needed an Advent-Saturday oracle year to corroborate it is answered: there is no such year and cannot be. Advent has no IV-class ferias -- Class2 from 17 December, Class3 before -- and RG 78 requires a IV-class feria. Zero IV-class Advent Saturdays across 2000-2100. Its single witness is not a gap in the research but the only evidence obtainable. The branch is kept: the Missal does print the Mass for Advent, RG 309's subject being Masses that may be celebrated as votive, and an overlay producing such a day would otherwise fall through silently. Register: sections 6.13 addendum and 6.14.
* feat(ef): the votive Mass of Our Lady on Saturday (RG 309(a))Lukasz Kasprzak2026-08-172-23/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RG 78's office has been built since ef-bvm-saturday: an otherwise unoccupied IV-class Saturday is de sancta Maria in sabbato, white, IV class. The Mass stayed the feria's, so the day observed Our Lady and then read Colossians on the parable of the weeds. That is M26 shape 1. RG 309(a) is the rule -- the Masses the Missal assigns "iuxta temporum diversitatem" -- and it prints five, each under its own season heading. All ten citations are transcribed from the scans with line numbers in the source. Masses II-V were confirmed twice, against the scan and against a live missalemeum capture of 2038 which names them and agrees on both readings. Mass I rests on the scan alone: no oracle year to hand has an Advent Saturday carrying this office. One witness where the others have two, and the code says so rather than blurring it. The mapping looked like the hard part and dissolved. The Missal's ranges are cut by civil dates and movable feasts, not by this rite's seasons -- II ends mid-season at the Purification, III spans four seasons. But measured against what a IV-class Saturday can actually be, it reduces to a seasonal mapping plus one date test at 2/3 February, with no Easter arithmetic at all: III's end to IV's start leaves the Triduum unassigned, unreachable because Holy Saturday is I class; IV's end to V's start leaves Pentecost week unassigned, also unreachable because that week's Saturday is an Ember Saturday. Time after Pentecost then begins exactly at Trinity, exactly where Mass V begins. Both gaps verified by sweep -- zero IV-class Saturdays in either across 2000-2059 -- not inferred. The office is identified structurally, never off the slug, which it deliberately shares with the ordinary feria: subject Bvm, IV class, Saturday. Blast radius: 87611 reading rows over the full domain, every one a Saturday. Allow-lists: M26 27 to 6, shape 1 gone, leaving only the Christ-the-King residue argued in colitur's favour last commit. The 2038 suite's BVM-SATURDAY-MASS class is removed rather than zeroed -- an id with no rows must not be declared. M18 355 to 376. C17 widened 397 to 445, taking its own Saturdays back from C1, C19 and C25, since one cause should not be filed under two ids; C31 89 to 103; C25 closed at 0 rows, its Holy-Name-week Saturdays now answered before step 3 is reached. Three unit tests pinned the old behaviour and are corrected rather than re-pinned: two asserted the day "keeps its ferial Mass", which was the honest thing to assert while this was unimplemented. The third still tests what it always did -- that step 4 refuses a temporal office -- and only what answers instead has changed. Register: section 6.13.
* feat(ef): the Seven Sorrows of Passion Friday, and M16 reversedLukasz Kasprzak2026-08-172-3/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Not the II-class feast of 15 September, which colitur has had since the bootstrap, but the other Seven Sorrows: the movable commemoration of Passion Friday, of which colitur had no trace at all. The 1962 calendarium lists it at the foot of March, below the fixed dates, exactly where a movable entry belongs (LT.txt:5056): "Feria VI post dominicam I Passionis: Commemoratio septem Dolorum B. Mariae Virg." Note the word -- Commemoratio. Under the 1960 rubrics it is a commemoration, not a feast, so it can never win the day. Friday after Passion Sunday I is Easter-9, confirmed independently by both dates the oracle allow-list already disputed: Easter 2026 is 5 April and M16's date is 27 March; Easter 2027 is 28 March and M13's is 19 March. It could not be built before Date_spec grew Easter_offset -- the same wall Rogation Wednesday hit, and the second entity that work has now unblocked. M16 is re-adjudicated and its verdict REVERSED, from missalemeum to colitur. The entry existed because colitur admitted St John Damascene where missalemeum showed the Seven Sorrows, colitur having no candidate to admit. Both streams now name the Seven Sorrows and that mismatch is gone. What remains runs the other way, and the rubric is explicit: RG 111(d) admits TWO commemorations on a III-class day, RG 113 puts the seasonal one first, and RG 114 omits only what exceeds the number. 27 March 2026 is a III-class privileged Passiontide feria; colitur admits exactly two, the Seven Sorrows and John Damascene, a real III-class universal feast genuinely falling that day. missalemeum admits one and reports John Damascene as displaced, dropping a commemoration the rubric allows. That makes four divergences adjudicated colitur where missalemeum drops or mis-assigns something -- Monica's Epistle, Perpetua's Common, Christ the King's week, and this. Recorded as a pattern rather than four coincidences: the oracle stays a comparison instrument, but its error rate on adjudicated cases is no longer negligible. M13 is untouched and stays open: 19 March 2027 is a different dispute, whether Joseph is displaced from Passion Friday at all, and on a I-class day RG 111(a) admits one privileged commemoration which the feria takes. Blast radius, full 1583-9999 sweep against the pre-change binary: 7874 days, every one carrying the new commemoration, zero unclassified, line counts equal both sides. Register: section 6.12.
* fix(lectionary): the week after Trinity says its own assigned MassLukasz Kasprzak2026-08-173-7/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RG 299 located (scan1:1096-1098), which does two things at once. First it closes a standing gap: the ferial-Mass selection rule was recorded in the register as unconfirmed against the primary source, and step 3 said so in its own comment -- "lectio's own observed behaviour, not a confirmed Missal citation". It is confirmed now. "In reliquis feriis dicitur Missa dominicae praecedentis, nisi a rubricis aliter provisum sit", restated in the propers as "...nisi propria Missa assignetur". Second, that escape clause splits M26 shape 2 in half, which is why the shape was never resolvable as one thing. Shape 2(a), the week after Trinity, is fixed. Trinity is the temporal identity of its own Sunday, so a plain walkback lands on Trinity's Mass -- but the Missal prints a named formula for the following week, "Missa dominicae I post Pentecosten" (scan1:21758), precisely because the feast has taken that Sunday's own. Those ferias now resolve at step 2 from it and never reach the walkback. Shape 2(b), Christ the King's week, turns out not to be a bug at all. No proper Mass is assigned there -- checked directly, no rubric precedes that Mass heading (scan1:39163ff) -- so RG 299's default governs and "the Mass of the preceding Sunday" genuinely is Christ the King's own, which is what colitur emits and missalemeum does not. Kept open only because no rubric specific to that week was located either way; the verdict is now argued from the primary text rather than resting on oracle disagreement. No Thursday in the slug list: Corpus Christi is Easter+60, which IS that week's Thursday every year, so the ferial slug never exists. Found by the bootstrap's own reachability guard refusing to emit a key no Temporal_ef slug can match, not reasoned out in advance. Allow-lists: C35 opened (69 rows, verdict colitur -- lectio still walks back); C17 narrowed 406 to 397, nine Saturdays moving to C35 because they carry both a citation and a colour difference, with C35 gated to require the citation so a colour-only Saturday still falls to C17; M26 narrowed 30 to 27; M18 widened 352 to 355, the same three days keeping only their observed-identity difference. Register: section 6.11.
* feat(kernel): movable Date_spec variants, and Rogation WednesdayLukasz Kasprzak2026-08-171-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Date_spec carried one variant, Fixed(month, day), and its own header said Sunday- and Easter-relative forms would arrive with the OF sanctoral. They arrive early because two things needed them at once: a user-supplied overlay carrying a local movable feast had no way to express "the first Sunday of October", and Rogation Wednesday's commemoration has been recorded as architecturally blocked since 2026-08-13. That blockage turns out to have been a premise, not a fact. The register concluded the Rogation "is not Commemoration_only sanctoral data by nature... it needs a genuinely THIRD kind of thing this architecture has no name for" -- but the reasoning rested on there being "no civil (month, day) pair to anchor a Fixed entry to". That is a statement about Date_spec's expressiveness. With Easter_offset the entity is ordinary sanctoral data, the identical shape Add major-litanies already ships, differing only in how the date is written. No third channel was needed. The register is corrected rather than left contradicting the code. Two variants: Easter_offset of int, and Nth_weekday of {month; nth; weekday} with negative nth counting from the end. Fixed's sexp representation is untouched, so all 327 sanctoral entries and the whole overlay parse unchanged. Both are re-validated in t_of_sexp through their smart constructors, extending the idiom Fixed already used -- the failure that guards against is invisible, a spec deserialising into something that silently never resolves and a celebration vanishing with no diagnostic. Easter is supplied by the rite, not computed in the kernel. Computus ships Gregorian and Julian both, and picking one here would hard-code a Roman assumption into rite-agnostic code and be silently wrong for a Julian-reckoning rite. Rite.t gains an easter field; Rite_ef supplies the Gregorian one. Layer keeps a split index. Fixed entries stay in the year-independent (month, day) table, which preserves the fast path and the "30 November counted twice in a 371-day span" behaviour validate.mli documents for St Andrew. Movable entries have no year-independent key by construction -- the same spec lands on a different (month, day) each year -- so they resolve per civil year into a rata-die table. index_by_date is removed rather than kept as an alias: two ways to index a layer, one of which silently ignores movable entries, is the trap this change exists to avoid. Two domain-edge defects, both found by the suite rather than reasoning. A liturgical year is Advent-anchored, so resolving civil year y names y +/- 1, and at the edges those are 1582 and 10000, which Computus correctly refuses by raising. The ceiling surfaced through the domain-ceiling test, the floor through `colitur day 1583` failing outright. Fixed once, in Layer.index, the single point that calls the rite's easter -- a clamp repeated per caller would have been two places to get wrong a third time. Rogation Wednesday: RG 87 assigns the Litaniae minores to the Monday, Tuesday AND Wednesday before Ascension (scan1:691); colitur built the first two from the start and never the third. RG 88 keeps it out of the Office, so the Ascension Vigil remains observed. RG 89 routes it through the Major Litanies' rules, but RG 109's closed list names only maiores, so by RG 107 it is an ORDINARY commemoration -- confirmed in the output, not assumed. Name from the Missal's own "feria IV" (scan1:20495-20497), violet to match the Monday and Tuesday offices. Blast radius, full 1583-9999 sweep against the pre-change binary: 2257 days, every one the same shape, zero unclassified, line counts equal both sides. The complement is the informative half -- in the other 6160 years the Rogation does not appear at all, because RG 111 admits one commemoration on a II-class day and an impeded feast takes it under RG 113, a Commemoration_only candidate having no row in RG 91's table. Both shapes are pinned. Allow-lists unmoved: layer 3 compares no commemorations and is blind by construction, and layer 4's 2026-2027 window has a competing feast on both Wednesdays, so the Rogation is capped out in exactly the years the oracle can see. C8 is unchanged, asserted by its own count pin. Not built: Sunday-relative specs, which nothing needs yet, and the --overlay plumbing that would let a user actually supply a local movable feast. Nth_weekday therefore ships with synthetic and property coverage only; inventing a shipped entry to exercise it would be fabricating calendar data. Register: section 6.10.
* feat(cli): install the runtime data, and resolve it in three waysLukasz Kasprzak2026-08-171-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `dune install` produced a colitur that could not run: the binary locates its data relative to its own path, nothing installed the four .sexp files anywhere, and an installed colitur exited 2 unable to read sanctoral.sexp. `dune build @install` produced an empty tree. data/dune installs the four RUNTIME files into <prefix>/share/colitur/ef. Deliberately not the two allow-lists: those describe where colitur and a comparison oracle disagree, are read only by the differential and oracle tests, and are meaningless to a running colitur -- installing them would ship an assertion about lectio's and missalemeum's behaviour as though it were calendar data. No glob, on purpose: a glob would silently start shipping them again the moment one was renamed. Resolution now probes rather than computing one path and hoping. An installed prefix is tried first, the build tree second, and a candidate counts only if sanctoral.sexp is actually readable inside it -- so a failed or half-removed install falls through to a working tree instead of shadowing it and failing later with a per-file error. COLITUR_DATA_DIR overrides both and NEVER falls through. This was the one real design question and the first version got it wrong: it treated the override as just another candidate, and a deliberately bogus value produced a full, plausible, entirely un-flagged year computed off the build tree. Someone who names a directory has stated an intent, and silently calendaring off a different one is the silent substitution this project refuses everywhere else. It is now exit 2 naming the directory. Verified end to end, not inferred: installed to a scratch prefix, then ran the binary from an unrelated cwd with no build tree near it, and confirmed 2038-03-06 still resolves Perpetua and Felicitas through the Common route. All four paths exercised -- build tree, valid override, bogus override, and an empty share/ falling through. Environment reads stay confined to bin/. The kernel's contract forbids them and nothing below the CLI learns where the data came from; the loaders take a path.
* fix(lectionary): two Judith citations wrong in both enginesLukasz Kasprzak2026-08-173-10/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A live-missalemeum sweep over a full liturgical year (2028, 364 days) returned 333 matching and 31 differing days: 17 already-known or pure notation, 3 new. All three now adjudicated against the photographic scans of the 1962 Missal. The Assumption's Epistle reads "Iudith 13, 22-25; 15, 10" (scan1:35357). Both engines carried "Judith 13:22-25; 13:15; 13:10" -- a chapter carry-over defect that re-applied chapter 13 to the second citation and so invented two verses the Missal never cites. The Seven Sorrows reads "Iudith 13, 22 et 23-25" (scan1:36938, corroborated at 28468); both carried "Judith 13:22; 13:25", dropping the range. The third, St Monica, resolves the other way: the Missal gives 1 Timothy (scan2:32679, heading and incipit both legible; scan1:29524 agrees) where missalemeum serves the Common of Holy Women's Proverbs -- colitur is right, no change. Layer 3 could not have found either citation defect. colitur's data is bootstrapped from lectio, and lectio is the other side of that differential, so while both engines produced the identical wrong answer the comparison held it against itself and reported agreement -- the shared-lineage blindness CLAUDE.md names, now with a second live witness beside Holy Thursday's colour. Only an external oracle could see it, and only outside the committed fixture's own window. Fixed upstream in lectio, re-bootstrapped here (provenance SHA-256 moved to 54f6bfc5, verified against the source), fixture regenerated. The upstream fix inverted layer 3 from blind to load-bearing here: reverting the Assumption citation now reddens both layers, where before it would have reddened neither. Verified by mutation, both directions. Allow-lists: - C22 closed and removed (128 rows -> 0), not re-adjudicated -- the other engine was fixed to agree, the same shape as the C2-C5/C7/C9-C13/C21 closures. Its own note had already flagged the Lenten Ember dead-key bug for upstream; lectio now also fails its build on any unreachable lectionary key rather than serving a plausible wrong Mass. - M28 opened (3 rows, verdict colitur), pinning both sides' citation text rather than the date and diff shape alone, so a different divergence landing on the same date cannot be swallowed. - M8's gate widened, expected_rows unchanged at 2: 2027-08-15 carries both its cause and M28's, and one entry is admitted per day. It stays under M8, which now requires its own commemoration difference to be present and admits the citation difference only when it satisfies M28's two-sided predicate. Neither cause absorbs the other. layer_m_reason's oracle-row parameter, kept named since M2 closed for exactly such a future reader, is live again. Register: docs/research/rules-register.md section 6.6.
* test(oracle): fix round 1 -- C30 disclosure, RG 17(a) misattribution, M26 shapesLukasz Kasprzak2026-08-172-8/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Important findings from coordinator review of 8d1eb25, all fixed. 1. C30's own note claimed its 91-row population "is C25's OWN former population, before this task narrowed it" -- false. Independently re-derived against the real resolver (pre-fix vs post-fix binary) and the lectio fixture: only 44 of the 91 rows were ever in C25 (Wed 6/ Thu 19/Fri 19, matching C25's own fix-round-3 breakdown exactly); the other 47 (all of Monday/Tuesday, plus part of Wednesday/Friday) previously matched lectio outright -- both engines independently landing on the same wrong value -- and are newly allow-listed only because colitur is now right. Rewritten to the same "both engines silently agreed on the wrong answer" pattern C33/C34 already used. 2. "Diebus ferialibus" is not RG 17(a) -- RG 17(a) states only the day-identity privilege; the ferial-Mass rubrics are Mass-propers rubrics, a distinction the register's own §6.3 already drew before this task's first pass blurred it in code/allow-list comments. A further slip: C31/C32 called their own rubric "RG 17(a)'s own next/ third sentence" when it is a different rubric block ~230 lines away, in Holy Family's (not Holy Name's) own feast propers. Fixed the attribution chain throughout tools/bootstrap_lectionary.ml, data/ef/expected-divergences.sexp's C29-C34, and (gitignored, outside this commit) docs/research/rules-register.md -- closed the §6.3 park, added §6.5 recording all four citations with corrected attribution. Quotes and line numbers were already right; only the chain of custody to RG 17(a) was wrong. 3. M26's own 30 rows classify into two nameable shapes, not "three confirmed shapes" with an unexplained 23-row residue that was in fact empty: 21 rows are RG 78's own already-documented BVM votive-Mass gap; 9 rows are a second, distinct gap -- a week whose own Sunday was displaced by a movable named feast (Trinity->Corpus Christi, "Missa Dominicae I post Pentecosten"; Christ the King), where the Missal requires the displaced Sunday's own Mass to keep informing that week's ferias but step 3 walks back to the displacing feast's citation instead -- proven directly by colitur's own citation on the Christ- the-King rows being literally that feast's own Gospel. verdict open unchanged (not fixed here); the shape is now named instead of buried. Minors: section count corrected 1458->1456 (four places); "exactly one candidate, zero ambiguous" corrected to "correctness rests on ordering, not uniqueness" (2 of 1456 sections genuinely yield two candidates, Holy Saturday's own Lectio, both years); the stale "nothing in layers 3-5 compares citations" claim corrected (only layer 5 still doesn't); M18's note corrected (five new entries not six; ~18 of its remaining 352 rows only agree now because of this task's own fixes, not "already" before it); "five" corrected to "six" otherwise-unoccupied Saturdays in bootstrap_lectionary.ml; scan2 quotes softened where OCR-garbled. Also done outside the git-tracked files: the step-4 (Commons) coverage gap is now recorded in data/ef/expected-divergences-missalemeum.sexp's own header, not only the commit body and the (gitignored) report. dune test: 358 tests green. COLITUR_EXHAUSTIVE_SWEEP=1 dune test --force: 359 tests green, 95.7s.
* test(oracle): compare reading citations against missalemeumLukasz Kasprzak2026-08-173-18/+138
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Layer 4 (test_oracle.ml) now extracts and compares the Epistle/Gospel citation for every one of the 730 days in the 2026-2027 fixture, the same axis Task 8 already added to layer 3. tools/ extract_missalemeum_oracle.py gained a structural citation-span detector (the first "*...*"-wrapped span under 40 chars containing a chapter:verse-shaped digit pair), verified exhaustively over all 1 458 Lectio/Evangelium sections. 728 of 730 days are comparable; the 2 that are not (Good Friday, both years) have no such section in missalemeum's own JSON at all -- a structural limit on the oracle's own side (M23), not a colitur gap. 451 of 730 days differ and are all explained across 19 cited entries; 0 unexplained. Chain step 4 (the Commons) has no layer-4 witness: confirmed empirically (a scratch sweep, not merely re-asserted from Task 6's own report) that none of the 15 Commons/proper saints is ever the observed office in this window. The comparison surfaced three genuine colitur bugs in data/ef/lectionary.sexp, all fixed at the source in tools/bootstrap_lectionary.ml: 1. Holy Name of Jesus (ef-holy-name-sunday/ef-holy-name) carried a mis-derived citation, borrowed by analogy from an unrelated ini section ("ef-christmas-sunday-0", the Sunday-within-the-Octave's own Mass) on the wrong assumption the two share a Mass. Disproved by missalemeum's own extraction for both real Holy Name Sundays in its window, confirmed against the Missal itself, twice, both scans (Acts 4:8-12/Luke 2:21, not Gal 4:1-7/Luke 2:33-40). 2. RG 17(a)'s own "diebus ferialibus" rubric (immediately following the Holy Name heading, both scans) was never implemented: 2-5 January ferias repeat 1 January's Mass, 7-12 January ferias before Holy Family Sunday repeat Epiphany's, and Holy Family's own week has a named formula ("Missa Dominicae Primae post Epiphaniam"). All three fell to step 3's undifferentiated Sunday walkback instead. Fixed for three 5-weekday families, deliberately excluding Saturday from all three -- RG 78's BVM Saturday Office wins there unconditionally, confirmed against missalemeum's own title on this window's own such Saturdays. 3. Corpus Christi and Sacred Heart (both real, never-impeded I-class movable feasts) had no lectionary entry at all. Both engines independently fell back to Trinity Sunday's own citation and silently agreed on the wrong answer -- the "Holy Thursday violet in both" shape CLAUDE.md names for exactly this reason. Because lectionary.sexp is shared with layer 3 (the lectio differential, 2005-2050), these fixes changed colitur's output for the whole domain, not only 2026-2027. data/ef/expected-divergences.sexp and test_differential.ml needed matching updates: C1 narrowed 361->173 and C25 narrowed 57->13 (rows that now resolve correctly moved to new entries), C16's note corrected (count unchanged), and six new entries added (C29-C34, 397 rows total, all verdict colitur). test_lectionary.ml and test_lectionary_ef.ml's own pins were updated to match (entry count 131->148; one step-3 regression test re-pointed to a date that still genuinely exercises that step). One entry, M26 (30 rows, verdict open), is a genuine unfixed gap: colitur's step-3 "resume the preceding Sunday" fallback is its only ferial-Mass mechanism, and missalemeum's own selection is more granular in three confirmed ways (a rotating votive Mass of the BVM, a named weekly formula for at least one week, and later Time-after-Pentecost weeks this task's own investigation did not narrow to a single rule) -- the same "needs a season-keyed selection mechanism, new behaviour not new data" shape data/ef/expected-divergences.sexp's own C6/C25 and Task 6's own residual concern already name, out of this task's own scope to build. dune test: 358 tests green. COLITUR_EXHAUSTIVE_SWEEP=1 dune test --force: 359 tests green, 89.5s.
* test(differential): fix round 3 -- two more Ember Saturdays, doc fixesLukasz Kasprzak2026-08-152-11/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two Ember Saturdays shipped an apostle's Mass verbatim from lectio's own ini, the exact shape already found and fixed for Passion Tuesday (C26): ef-advent-ember-sat carried St Thomas the Apostle's Mass (Eph 2:19-22 / John 20:24-29, 21 December) instead of the real "Sabbato Quatuor Temporum Adventus" (2 Thess 2:1-8 / Luke 3:1-6); ef-september- ember-sat carried St Matthew's Mass (Ezek 1:10-14 / Matt 9:9-13, 21 September) instead of the real "Sabbato Quatuor Temporum septembris" (Heb 9:2-12 / Luke 13:6-17). Both verified against both primary-source scans independently. Both readings are explicitly labelled "Lectio Epistolae" in the Missal on both days, so neither needed the "last lesson before the Gospel" convention Holy Wednesday/Good Friday relied on -- a textual fact, not an editorial choice. Fixed at the source in tools/bootstrap_lectionary.ml: colitur_keys excludes both wrong ini sections; a new ember_saturday_corrections list hand-authors the real citations. New allow-list entries C27/C28 (40 rows each, not the naive 46 -- traced to the identical 6 civil years where 21 September and 21 December, always exactly 91 days apart, land on a Saturday and the fixed saint's feast wins outright). Both values pinned in test_lectionary.ml and mutation-tested. Also: C25's per-weekday breakdown was mislabelled (right multiset, rotated weekday labels) in both test_differential.ml and expected- divergences.sexp -- corrected to Wednesday 6/Thursday 19/Friday 19/Saturday 13, and the claim that this split came directly from the comparator's own output is narrowed to what's actually true (only the total, 57, does). C26's scan2 citation range was extended to include the Gospel (previously stopped after the Epistle). lib/kernel/liturgical_day.mli's "citations always empty until Plan 4" comment is now stale on this branch -- left untouched (Task 11's own documentation pass), noted in the task report so it isn't lost. dune test: 358 tests green; COLITUR_EXHAUSTIVE_SWEEP=1: 359 green.
* test(differential): fix round 2 -- Good Friday, Passion Tuesday, stale headerLukasz Kasprzak2026-08-152-52/+73
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Critical, and worse than what it replaced: removing a lectionary key does not mean "no reading" to Lectionary_ef.readings -- it means step 3 silently resumes the preceding Sunday. Good Friday, which has no Mass at all, was emitting Palm Sunday's own Epistle and Passion narrative every year; Holy Wednesday had the same defect. Fixed by authoring both days fully: the Gospel was always unambiguous and is now always authored; the Epistle uses the same "last lesson before the Gospel" convention this file's own Lenten Ember Wednesday entry already established for an identical two-peer-lesson shape, applied for consistency rather than invented to close this gap. C24 is retired, folded into a widened C23 covering all six Holy Week days. Important: Passion Tuesday was shipping Holy Tuesday's Mass, a defect the previous round's own footnote had found and left unrecorded. Fixed at the source -- colitur_keys now excludes lectio's own (wrong) ini section for this one weekday rather than translating it; a new passion_tuesday_entry hand-authors the real Missal citation (Dan 14:27, 28-42 / John 7:1-13, both scans). New entry C26 records the resulting divergence, 43 of 46 years, traced (not merely counted) to three years where a competing I-class feast impedes the day entirely. Important: the allow-list header was stale one level up, still naming and restating the diagnosis of an id (C21) retired in the previous round. Rewritten in full rather than layered with another correction. Minors: all three Lent Ember values now pinned (only Wednesday was before); C22's citation corrected to attribute the date-anchor text and the rank text to their own separate sources; assert_reachable's own comment no longer overclaims what it can catch; C25's falsified reasoning replaced with the directly observed fact (a first replacement derivation was itself found wrong on a second reading and is recorded as rejected, not silently discarded); hand-authored citations standardised to English book names with a colon, matching this file's own dominant convention, with one stated exception where a value must stay byte-identical to lectio's own data rather than be reformatted. dune test: 358/358. COLITUR_EXHAUSTIVE_SWEEP=1 dune test --force: 359/359.