Author proper Lauds/Vespers antiphons for the Beheading of St. John Baptist

Live-verified against Divinum Officium (Tridentine 1906/1910 and
Divino Afflatu 1954, Sancti/08-29.txt) — the feast's own 5-antiphon
set ([Ant Vespera], reused verbatim at Lauds as [Ant Laudes]), now
wired through both the newly rank-agnostic Lauds/Vespers proper tier
and the new minor-hour derivation mechanism. Vespers gets only the
first four (mapped onto vu's Monastic-1617-structured four-psalm
Vespers, matching common-of-a-martyr.yml's own 109/111/112/115
baseline) — the reference's own fifth antiphon is a secular five-
psalm-Vespers detail that doesn't apply here, and is used only at
Lauds' Laudate psalm instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VFGHb4XMe6Wya4pGpPhEEi

src/data/hours/lauds-psalmody-overrides/decollation-of-st-john-baptist.yml

@@ -0,0 +1,27 @@
+# Verified against Divinum Officium (Tridentine 1906/1910 and Divino
+# Afflatu 1954, `[Ant Vespera]`), Latin/Sancti/08-29.txt +
+# English/Sancti/08-29.txt, 2026-08-29 — Lauds reuses the Vespers set
+# verbatim (`[Ant Laudes]` -> `@:Ant Vespera`).
+id: decollation-of-st-john-baptist
+groups:
+  - psalms: [92]
+    antiphon:
+      la: "Heródes enim ténuit * et ligávit Joánnem et pósuit in cárcerem propter Herodíadem."
+      en: "For Herod had laid hold upon John, * and bound him, and put him in prison, for Herodias' sake."
+  - psalms: [99]
+    antiphon:
+      la: "Dómine mi rex, * da mihi in disco caput Joánnis Baptístæ."
+      en: "O Lord my King, * give me in a charger the head of John the Baptist."
+  - psalms: [62]
+    antiphon:
+      la: "Puéllæ saltánti * imperávit mater: Nihil áliud petas, nisi caput Joánnis."
+      en: "The damsel danced, * and her mother charged her, saying: See thou ask nothing, but only the head of John."
+canticle:
+  id: canticum-trium-puerorum
+  antiphon:
+    la: "Arguébat * Heródem Joánnes propter Herodíadem, quam túlerat fratri suo Philíppo uxórem."
+    en: "John had rebuked Herod for Herodias' sake, * his brother Philip's wife, for he had taken her."
+laudate:
+  antiphon:
+    la: "Da mihi in disco * caput Joánnis Baptístæ. Et contristátus est rex propter jusjurándum."
+    en: "Give me in a charger the head of John the Baptist. * And the King was sorry, for his oath's sake."

src/data/hours/vespers-psalmody-overrides/saints/decollation-of-st-john-baptist.yml

@@ -0,0 +1,29 @@
+# Verified against Divinum Officium (Tridentine 1906/1910 and Divino
+# Afflatu 1954, `[Ant Vespera]`), Latin/Sancti/08-29.txt +
+# English/Sancti/08-29.txt, 2026-08-29. The reference's own `[Rule]`
+# ("Psalm5 Vespera=116") is a secular five-psalm-Vespers detail that
+# doesn't apply to vu's Monastic-1617-structured (four-psalm) Vespers —
+# same 109/111/112/115 baseline as common-of-a-martyr.yml's own Vespers
+# psalmody, with this feast's own first four proper antiphons (of its
+# five, `[Ant Vespera]` 1-4) substituted in; the fifth ("Da mihi in
+# disco...") has no corresponding slot here and is used only at Lauds'
+# Laudate psalm instead (see lauds-psalmody-overrides/decollation-of-st-
+# john-baptist.yml).
+id: decollation-of-st-john-baptist
+groups:
+  - psalms: [109]
+    antiphon:
+      la: "Heródes enim ténuit * et ligávit Joánnem et pósuit in cárcerem propter Herodíadem."
+      en: "For Herod had laid hold upon John, * and bound him, and put him in prison, for Herodias' sake."
+  - psalms: [111]
+    antiphon:
+      la: "Dómine mi rex, * da mihi in disco caput Joánnis Baptístæ."
+      en: "O Lord my King, * give me in a charger the head of John the Baptist."
+  - psalms: [112]
+    antiphon:
+      la: "Puéllæ saltánti * imperávit mater: Nihil áliud petas, nisi caput Joánnis."
+      en: "The damsel danced, * and her mother charged her, saying: See thou ask nothing, but only the head of John."
+  - psalms: [115]
+    antiphon:
+      la: "Arguébat * Heródem Joánnes propter Herodíadem, quam túlerat fratri suo Philíppo uxórem."
+      en: "John had rebuked Herod for Herodias' sake, * his brother Philip's wife, for he had taken her."

src/hours/lauds.ts

@@ -4,7 +4,7 @@ import { resolveDay } from '../calendar';
 import { getDayLabel } from '../calendar/day-label';
 import { getPsalmVerses } from '../psalter';
 import { getCanticle } from './lauds-canticles';
-import { getLaudsPsalmodyOverride, type LaudsPsalmodyOverride } from './lauds-psalmody-overrides';
+import { getLaudsSaintOverride, getLaudsCommonOverride, type LaudsPsalmodyOverride } from './lauds-psalmody-overrides';
 import { getOpeningVersicleId } from './opening-versicle';
 import { getMarianAntiphonId, getMarianAntiphonLabel } from './marian-antiphon';
 import { applyFlexaMark } from './antiphon';
@@ -19,6 +19,7 @@ import {
   seasonalOfficeSuffix,
   isFerialOrVigil,
   getOfficeOverrideId,
+  getPsalmodyProperOverrideId,
   resolveResponsory,
   resolveOfficeBundle,
   resolveSuffrages,
@@ -49,24 +50,40 @@ interface PsalmodyBlock {
 const laudsAntiphons = laudsAntiphonsData as Record<Weekday, PsalmodyBlock>;
 
 /**
- * A duplex-majus+ saint's own proper psalmody (per-feast, not per-Common —
+ * Two independent tiers, tried in order:
- * explicit choice), or one of the named temporal feasts eligible via
- * resolve-common.ts's getOfficeOverrideId. Falls back to `undefined` — the
- * plain weekday default — for an eligible feast with no override authored
- * yet, same honest incremental-content convention as everywhere else in
- * this codebase; it's not gated behind whether content exists, just
- * behind whether it's *eligible* to override at all.
  *
- * getOfficeOverrideId itself checks resolveOfficeWinner(day), not the raw
+ * 1. **Proper** — this feast's own authored antiphons (per-feast, not
- * `day.winner` — on an octave day this is the octave's own feast (e.g. St.
+ *    per-Common — explicit choice), eligible at *any rank* via
- * Lawrence, days 2-8 of his own octave), which is exactly what should
+ *    resolve-common.ts's getPsalmodyProperOverrideId. A saint's own real
- * supply the psalmody override there too, live-verified alongside the
+ *    proper text is never gated behind rank — see that function's own
- * collect/Benedictus-antiphon fix (see resolve-common.ts's
+ *    doc comment for why this used to be wrongly bundled with tier 2's
+ *    gate (fixed 2026-08-29).
+ * 2. **Common category** — a generic-by-category substitute, still
+ *    gated at duplex-majus+ via getOfficeOverrideId (a real, distinct,
+ *    weaker tier: same conventional psalm numbers, not this feast's own
+ *    text).
+ *
+ * Falls back to `undefined` — the plain weekday default — for an eligible
+ * feast with no override authored yet in either tier, same honest
+ * incremental-content convention as everywhere else in this codebase;
+ * it's not gated behind whether content exists, just behind whether it's
+ * *eligible* to override at all.
+ *
+ * Both id-eligibility functions check resolveOfficeWinner(day), not the
+ * raw `day.winner` — on an octave day this is the octave's own feast
+ * (e.g. St. Lawrence, days 2-8 of his own octave), which is exactly what
+ * should supply the psalmody override there too, live-verified alongside
+ * the collect/Benedictus-antiphon fix (see resolve-common.ts's
  * resolveOfficeWinner doc comment).
  */
 function getPsalmodyOverrideFor(day: LiturgicalDay): LaudsPsalmodyOverride | undefined {
-  const id = getOfficeOverrideId(day);
+  const properId = getPsalmodyProperOverrideId(day);
-  return id ? getLaudsPsalmodyOverride(id) : undefined;
+  const proper = properId ? getLaudsSaintOverride(properId) : undefined;
+  if (proper) {
+    return proper;
+  }
+  const categoryId = getOfficeOverrideId(day);
+  return categoryId ? getLaudsCommonOverride(categoryId) : undefined;
 }
 
 // Mon-Fri share one capitulum verbatim (confirmed against the live engine
@@ -128,7 +145,7 @@ function canticleText(canticleId: string, slice?: [number, number]): ResolvedTex
     }
     status[lang] = worst;
   }
-  return { text, status };
+  return { text, status, citation: { la: canticle.citation, en: canticle.citation } };
 }
 
 /** Ps 66 through the Laudate psalms — see hours/types.ts's 'lauds-psalmody'

src/hours/resolve-common.ts

@@ -7,6 +7,7 @@ import { resolveActiveOctave, activeOctavesFor, octaveGoverningPrivilegedDay, is
 import { getTemporalFeastRecord } from '../calendar/temporal-feasts';
 import { isInTriduum } from '../calendar/temporal';
 import { splitAntiphon, isDoubleOrHigher } from './antiphon';
+import { getLaudsSaintOverride } from './lauds-psalmody-overrides';
 import vespersMagnificatAntiphonsData from '../data/hours/vespers-magnificat-antiphons.yml';
 
 type BilingualText = Partial<Record<string, string>>;
@@ -180,6 +181,34 @@ export function getOfficeOverrideId(day: LiturgicalDay): string | undefined {
   return undefined;
 }
 
+/**
+ * The id to look up for today's winner's own *proper* Lauds/Vespers
+ * psalmody antiphons (`hours/lauds.ts`'s and `hours/vespers.ts`'s own
+ * `getPsalmodyOverrideFor`) — eligible at **any rank**, unlike
+ * `getOfficeOverrideId` above. A saint's own authored proper antiphon
+ * text isn't something rank should ever gate — rank only has standing to
+ * gate the weaker, generic Common-category substitute (still looked up
+ * via `getOfficeOverrideId`'s duplex-majus+ threshold, a real distinct
+ * tier: same conventional psalm numbers, a generic-by-category antiphon,
+ * not this feast's own text). Mirrors `getMinorHourOverrideId`'s identical
+ * "any sanctoral winner is eligible, it's the caller that decides whether
+ * anything's actually authored for the id" reasoning — the psalmody
+ * override table previously reused `getOfficeOverrideId`'s single
+ * duplex-majus+ gate for both its proper and Common tiers at once, which
+ * silently discarded a proper antiphon whenever it happened to be
+ * authored for a sub-duplex-majus feast (fixed 2026-08-29).
+ */
+export function getPsalmodyProperOverrideId(day: LiturgicalDay): string | undefined {
+  const winner = resolveOfficeWinner(day);
+  if (winner.kind === 'temporal' && ALWAYS_OVERRIDE_TEMPORAL_IDS.has(winner.id)) {
+    return winner.id;
+  }
+  if (winner.kind === 'sanctoral') {
+    return winner.id;
+  }
+  return undefined;
+}
+
 /**
  * The id to look up for today's office winner's (resolveOfficeWinner)
  * minor-hour content (antiphon + chapter) — `${hourId}-antiphon-${id}`/
@@ -328,19 +357,52 @@ function withPaschaltideAlleluia(resolved: ResolvedText, day: LiturgicalDay): Re
   return appendPaschaltideAlleluia(resolved);
 }
 
+// The reference engine's own `getanthoras()` (specials.pl): when a saint
+// has no dedicated per-hour minor-hour antiphon of its own, one is
+// derived from that saint's 5-antiphon Lauds/Vespers set (`[Ant Laudes]`,
+// which for most saints is `@:Ant Vespera`) by fixed index — Prime takes
+// the first (the same antiphon as the first psalm-group), Terce/Sext the
+// second/third, None the fifth (the Laudate antiphon); the fourth
+// (canticle) antiphon is never used for a minor hour. vu's own
+// `LaudsPsalmodyOverride` already stores that same 5-antiphon set in that
+// exact order (`groups[0..2]`, `canticle`, `laudate`), so once a saint's
+// Lauds proper is authored, no separate per-hour file is needed for this
+// tier — same "mechanism first, content incrementally" pattern as
+// everywhere else in this codebase.
+const MINOR_HOUR_LAUDS_ANTIPHON_INDEX: Record<string, number> = { prime: 0, terce: 1, sext: 2, none: 4 };
+
+function deriveMinorHourAntiphonFromLauds(hourId: string, overrideId: string): ResolvedText | undefined {
+  const index = MINOR_HOUR_LAUDS_ANTIPHON_INDEX[hourId];
+  if (index === undefined) {
+    return undefined;
+  }
+  const lauds = getLaudsSaintOverride(overrideId);
+  if (!lauds) {
+    return undefined;
+  }
+  const antiphon = index === 4 ? lauds.laudate.antiphon : lauds.groups[index]?.antiphon;
+  if (!antiphon) {
+    return undefined;
+  }
+  return verifiedText(antiphon);
+}
+
 /** A Little Hour's (or Prime's) plain per-weekday antiphon, overridden by
  * a duplex-majus+ feast's own proper (`${hourId}-antiphon-${id}`) when
- * authored, then by that saint's shared Common (`${hourId}-antiphon-
+ * authored, then by that saint's own Lauds/Vespers antiphon set (see
+ * `deriveMinorHourAntiphonFromLauds` above — a real liturgical derivation,
+ * not a guess), then by that saint's shared Common (`${hourId}-antiphon-
  * ${minorHoursCommon}`, see SaintRecord's own doc comment) — tried first
  * in its Paschaltide-variant form (`${minorHoursCommon}-paschaltide`)
  * when the day falls in Paschaltide and that variant has been authored,
- * per PASCHALTIDE_SEASONS's own doc comment — when a proper one hasn't
+ * per PASCHALTIDE_SEASONS's own doc comment — when neither of the first
- * been authored — same honest "not gated behind whether content exists,
+ * two has been authored — same honest "not gated behind whether content
- * just eligible to override at all" fallback as every other override in
+ * exists, just eligible to override at all" fallback as every other
- * this codebase: an eligible feast with none of these authored yet just
+ * override in this codebase: an eligible feast with none of these
- * falls through to the plain weekday default silently. The plain (non-
+ * authored yet just falls through to the plain weekday default silently.
- * `-paschaltide`) Common fallback itself still picks up a seasonal change
+ * The plain (non-`-paschaltide`) Common fallback itself still picks up a
- * in Paschaltide — see `withPaschaltideAlleluia`.
+ * seasonal change in Paschaltide — see `withPaschaltideAlleluia`. (The
+ * derived-from-Lauds tier does not get that treatment — see TODO.md.)
  */
 export function resolveMinorHourAntiphon(
   hourId: string,
@@ -353,6 +415,10 @@ export function resolveMinorHourAntiphon(
     if (proper.status.la !== 'missing' || proper.status.en !== 'missing') {
       return proper;
     }
+    const derived = deriveMinorHourAntiphonFromLauds(hourId, overrideId);
+    if (derived) {
+      return derived;
+    }
     const commonId = getSaintRecord(overrideId)?.minorHoursCommon;
     if (commonId) {
       if (PASCHALTIDE_SEASONS.has(day.season)) {
@@ -542,7 +608,16 @@ function sanctoralCommemorationPart(commemoration: Extract<Commemoration, { kind
     if (combined.status.la !== 'missing' || combined.status.en !== 'missing') {
       return { kind: 'preces', text: combined, label };
     }
-    return { kind: 'preces', text: resolveCommon(`${saint.propers}-collect`), label };
+    const properCollect = resolveCommon(`${saint.propers}-collect`);
+    if (properCollect.status.la !== 'missing' || properCollect.status.en !== 'missing') {
+      return { kind: 'preces', text: properCollect, label };
+    }
+  }
+  if (saint?.collectCommon && saint.collectName) {
+    const template = resolveCommon(saint.collectCommon);
+    if (template.status.la !== 'missing' || template.status.en !== 'missing') {
+      return { kind: 'preces', text: substituteName(template, saint.collectName), label };
+    }
   }
   return { kind: 'preces', text: { text: {}, status: { la: 'missing', en: 'missing' } }, label };
 }

src/hours/vespers.ts

@@ -5,7 +5,7 @@ import { weekdayOf } from '../calendar/weekday';
 import { getDayLabel } from '../calendar/day-label';
 import { getPsalmVerses } from '../psalter';
 import { getOpeningVersicleId } from './opening-versicle';
-import { getVespersPsalmodyOverride } from './vespers-psalmody-overrides';
+import { getVespersSaintOverride, getVespersCommonOverride } from './vespers-psalmody-overrides';
 import { applyFlexaMark } from './antiphon';
 import {
   resolveCommon,
@@ -18,6 +18,7 @@ import {
   seasonalOfficeSuffix,
   isFerialOrVigil,
   getOfficeOverrideId,
+  getPsalmodyProperOverrideId,
   resolveResponsory,
   resolveOfficeBundle,
   resolveSuffrages,
@@ -70,20 +71,31 @@ function psalmParts(group: VespersGroup, day: LiturgicalDay): ResolvedPart[] {
   return parts;
 }
 
-/** A duplex-majus+ saint's own proper Vespers psalmody (none authored
+/** Two independent tiers, tried in order — same split as hours/lauds.ts's
- * yet), or their Common's (live-verified 2026-08-28, see
+ * own getPsalmodyOverrideFor, see its doc comment for the full rationale:
- * hours/vespers-psalmody-overrides.ts's own doc comment for why this
+ *
- * mechanism is genuinely per-Common — unlike Lauds, the psalm *numbers*
+ * 1. **Proper** — this feast's own authored psalmody, eligible at *any
- * themselves differ by Common here, not just the antiphons). Eligibility
+ *    rank* via resolve-common.ts's getPsalmodyProperOverrideId (a saint's
- * follows the evening's governing `day` (same getOfficeOverrideId test
+ *    own real proper text is never gated behind rank).
- * as the chapter/responsory/hymn/versicle bundle below) — a First
+ * 2. **Common category** — per hours/vespers-psalmody-overrides.ts's own
- * Vespers of a majus+ feast should get that feast's own psalms, same as
+ *    doc comment, genuinely per-Common here (the psalm *numbers*
- * it gets that feast's own office. Falls back to `undefined` for an
+ *    themselves differ by Common, not just the antiphons, unlike Lauds)
- * eligible feast with no override authored yet, same honest incremental-
+ *    — still gated at duplex-majus+ via getOfficeOverrideId.
- * content convention as everywhere else. */
+ *
+ * Eligibility follows the evening's governing `day` (same
+ * resolveOfficeWinner-based test as the chapter/responsory/hymn/versicle
+ * bundle below) — a First Vespers of a feast should get that feast's own
+ * psalms, same as it gets that feast's own office. Falls back to
+ * `undefined` for an eligible feast with no override authored in either
+ * tier, same honest incremental-content convention as everywhere else. */
 function getPsalmodyOverrideFor(day: LiturgicalDay): VespersDay | undefined {
-  const id = getOfficeOverrideId(day);
+  const properId = getPsalmodyProperOverrideId(day);
-  return id ? getVespersPsalmodyOverride(id) : undefined;
+  const proper = properId ? getVespersSaintOverride(properId) : undefined;
+  if (proper) {
+    return proper;
+  }
+  const categoryId = getOfficeOverrideId(day);
+  return categoryId ? getVespersCommonOverride(categoryId) : undefined;
 }
 
 /** The 4 weekday-variable psalm groups — no fixed leading/trailing psalm

src/ui/hour-view.ts

@@ -26,12 +26,18 @@ function renderColumns(resolved: ResolvedText | ResolvedVerse, languages: readon
 }
 
 // Scripture quotations always carry a full citation (book, chapter, verse) —
-// shown once, deduplicated across languages when they happen to match.
+// shown once per currently-displayed language, deduplicated when they
-function renderCitation(text: ResolvedText): string {
+// happen to match (e.g. a plain "Psalm 118" citation reused verbatim in
+// both columns) — restricted to `languages` so a language-specific
+// abbreviation (Latin "Jac 1:12" vs. English "Jas 1:12") never leaks into
+// a single-language view.
+function renderCitation(text: ResolvedText, languages: readonly string[]): string {
   if (!text.citation) {
     return '';
   }
-  const values = [...new Set(Object.values(text.citation).filter((v): v is string => Boolean(v)))];
+  const values = [
+    ...new Set(languages.map((lang) => text.citation![lang]).filter((v): v is string => Boolean(v))),
+  ];
   return values.length ? `<p class="ordo-part-citation">${escapeHtml(values.join(' / '))}</p>` : '';
 }
 
@@ -64,7 +70,7 @@ function renderPart(part: ResolvedPart, languages: readonly string[]): string {
       return `
         <section class="ordo-part ordo-part-${part.kind}">
           <h3 class="ordo-part-label">${hourLabel(part.kind)}</h3>
-          ${renderCitation(part.text)}
+          ${renderCitation(part.text, languages)}
           ${renderColumns(part.text, languages)}
         </section>
       `;
@@ -93,7 +99,7 @@ function renderPart(part: ResolvedPart, languages: readonly string[]): string {
       return `
         <section class="ordo-part ordo-part-lesson">
           ${renderLessonLabel(part.label, languages)}
-          ${renderCitation(part.text)}
+          ${renderCitation(part.text, languages)}
           ${renderColumns(part.text, languages)}
           ${part.responsory ? `<div class="ordo-part-responsory">${renderColumns(part.responsory, languages)}</div>` : ''}
         </section>
@@ -110,7 +116,7 @@ function renderPart(part: ResolvedPart, languages: readonly string[]): string {
       return `
         <section class="ordo-part ordo-part-lesson ordo-part-gospel">
           <h3 class="ordo-part-label">Gospel</h3>
-          ${renderCitation(part.text)}
+          ${renderCitation(part.text, languages)}
           ${renderColumns(part.text, languages)}
           ${part.source ? `<p class="ordo-part-citation">${escapeHtml(part.source)}</p>` : ''}
           ${part.responsory ? `<div class="ordo-part-responsory">${renderColumns(part.responsory, languages)}</div>` : ''}
@@ -170,7 +176,7 @@ function renderPart(part: ResolvedPart, languages: readonly string[]): string {
         <section class="ordo-part ordo-part-canticle">
           ${part.antiphon ? renderColumns(part.antiphon, languages) : ''}
           <h3 class="ordo-part-label lang-columns lang-columns-${languages.length}">${titleCols}</h3>
-          ${renderCitation(part.text)}
+          ${renderCitation(part.text, languages)}
           ${renderColumns(part.text, languages)}
           ${part.gloriaPatri ? `<div class="ordo-part-gloria-patri">${renderColumns(part.gloriaPatri, languages)}</div>` : ''}
         </section>