diff --git a/messages/de.json b/messages/de.json
index 4dcc47c51..f4f2254d2 100644
--- a/messages/de.json
+++ b/messages/de.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Medikamenten-Erinnerung",
     "eventMedicationReminderDesc": "Wird zu jeder geplanten Einnahmezeit gesendet.",
-    "eventMeasurementAnomaly": "Auffälliger Messwert",
-    "eventMeasurementAnomalyDesc": "Wird gesendet, wenn ein Wert deutlich außerhalb deines üblichen Bereichs liegt.",
-    "eventComplianceLow": "Niedrige Therapietreue",
-    "eventComplianceLowDesc": "Wird gesendet, wenn deine Therapietreue in den letzten Tagen unter 80 % fällt.",
-    "eventWithingsSyncFailed": "Withings-Sync fehlgeschlagen",
-    "eventWithingsSyncFailedDesc": "Wird gesendet, wenn die Withings-Synchronisierung mehrere Versuche in Folge scheitert.",
     "eventSystemAlert": "Systemmeldung",
     "eventSystemAlertDesc": "Allgemeine Mitteilungen vom HealthLog-Server, etwa Wartungsfenster oder Konto-Hinweise.",
-    "eventPersonalRecord": "Persönlicher Rekord",
-    "eventPersonalRecordDesc": "Wird gesendet, wenn ein Messwert deine bisherige Bestmarke übertrifft.",
     "eventMoodReminder": "Stimmungs-Erinnerung",
     "eventMoodReminderDesc": "Tägliche Erinnerung, deine aktuelle Stimmung zu protokollieren.",
     "eventCyclePeriodSoon": "Periode steht bevor",
diff --git a/messages/en.json b/messages/en.json
index 6a5c05ac9..891a3d113 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Medication reminder",
     "eventMedicationReminderDesc": "Sent at each scheduled dose time.",
-    "eventMeasurementAnomaly": "Unusual measurement",
-    "eventMeasurementAnomalyDesc": "Sent when a reading is well outside your usual range.",
-    "eventComplianceLow": "Low adherence",
-    "eventComplianceLowDesc": "Sent when your adherence over the last few days drops below 80 %.",
-    "eventWithingsSyncFailed": "Withings sync failed",
-    "eventWithingsSyncFailedDesc": "Sent when Withings synchronisation fails multiple attempts in a row.",
     "eventSystemAlert": "System notice",
     "eventSystemAlertDesc": "General messages from the HealthLog server, e.g. maintenance windows or account notes.",
-    "eventPersonalRecord": "Personal record",
-    "eventPersonalRecordDesc": "Sent when a reading beats your previous best.",
     "eventMoodReminder": "Mood reminder",
     "eventMoodReminderDesc": "Daily nudge to log your current mood.",
     "eventCyclePeriodSoon": "Period coming up",
diff --git a/messages/es.json b/messages/es.json
index a2b612bad..ba52d239e 100644
--- a/messages/es.json
+++ b/messages/es.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Recordatorio de medicación",
     "eventMedicationReminderDesc": "Se envía a cada hora de dosis programada.",
-    "eventMeasurementAnomaly": "Medición inusual",
-    "eventMeasurementAnomalyDesc": "Se envía cuando una lectura está claramente fuera de tu rango habitual.",
-    "eventComplianceLow": "Cumplimiento bajo",
-    "eventComplianceLowDesc": "Se envía cuando tu tasa de toma de los últimos días baja del 80 %.",
-    "eventWithingsSyncFailed": "Error de sincronización con Withings",
-    "eventWithingsSyncFailedDesc": "Se envía cuando la sincronización con Withings falla varios intentos seguidos.",
     "eventSystemAlert": "Aviso del sistema",
     "eventSystemAlertDesc": "Mensajes generales del servidor HealthLog, por ejemplo ventanas de mantenimiento o avisos de cuenta.",
-    "eventPersonalRecord": "Récord personal",
-    "eventPersonalRecordDesc": "Se envía cuando una lectura supera tu mejor marca anterior.",
     "eventMoodReminder": "Recordatorio de ánimo",
     "eventMoodReminderDesc": "Recordatorio diario para registrar tu ánimo actual.",
     "eventCyclePeriodSoon": "Período próximo",
diff --git a/messages/fr.json b/messages/fr.json
index af97df036..e9de10274 100644
--- a/messages/fr.json
+++ b/messages/fr.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Rappel de médicament",
     "eventMedicationReminderDesc": "Envoyé à chaque heure de prise prévue.",
-    "eventMeasurementAnomaly": "Mesure inhabituelle",
-    "eventMeasurementAnomalyDesc": "Envoyé quand une valeur sort nettement de votre plage habituelle.",
-    "eventComplianceLow": "Observance faible",
-    "eventComplianceLowDesc": "Envoyé quand votre taux de prise des derniers jours passe sous les 80 %.",
-    "eventWithingsSyncFailed": "Échec de la synchronisation Withings",
-    "eventWithingsSyncFailedDesc": "Envoyé quand la synchronisation Withings échoue plusieurs fois d'affilée.",
     "eventSystemAlert": "Notification système",
     "eventSystemAlertDesc": "Messages généraux du serveur HealthLog, par exemple maintenance ou avis de compte.",
-    "eventPersonalRecord": "Record personnel",
-    "eventPersonalRecordDesc": "Envoyé quand une valeur dépasse votre meilleur précédent.",
     "eventMoodReminder": "Rappel d'humeur",
     "eventMoodReminderDesc": "Rappel quotidien pour noter votre humeur du moment.",
     "eventCyclePeriodSoon": "Règles à venir",
diff --git a/messages/it.json b/messages/it.json
index fed51449c..8c812c639 100644
--- a/messages/it.json
+++ b/messages/it.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Promemoria farmaco",
     "eventMedicationReminderDesc": "Inviato a ogni orario di dose programmato.",
-    "eventMeasurementAnomaly": "Misurazione insolita",
-    "eventMeasurementAnomalyDesc": "Inviato quando un valore esce nettamente dal tuo intervallo abituale.",
-    "eventComplianceLow": "Aderenza bassa",
-    "eventComplianceLowDesc": "Inviato quando il tuo tasso di assunzione degli ultimi giorni scende sotto l'80 %.",
-    "eventWithingsSyncFailed": "Sincronizzazione Withings non riuscita",
-    "eventWithingsSyncFailedDesc": "Inviato quando la sincronizzazione Withings fallisce per più tentativi consecutivi.",
     "eventSystemAlert": "Avviso di sistema",
     "eventSystemAlertDesc": "Messaggi generali dal server HealthLog, ad esempio finestre di manutenzione o note sull'account.",
-    "eventPersonalRecord": "Record personale",
-    "eventPersonalRecordDesc": "Inviato quando una misurazione supera il tuo precedente record.",
     "eventMoodReminder": "Promemoria umore",
     "eventMoodReminderDesc": "Promemoria quotidiano per registrare il tuo umore attuale.",
     "eventCyclePeriodSoon": "Ciclo in arrivo",
diff --git a/messages/ko.json b/messages/ko.json
index 77eee65e5..9c3a66065 100644
--- a/messages/ko.json
+++ b/messages/ko.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "복약 알림",
     "eventMedicationReminderDesc": "예정된 복용 시각마다 보내요.",
-    "eventMeasurementAnomaly": "이상 측정값",
-    "eventMeasurementAnomalyDesc": "측정값이 평소 범위를 크게 벗어나면 보내요.",
-    "eventComplianceLow": "낮은 복약 순응도",
-    "eventComplianceLowDesc": "최근 며칠 복약 순응도가 80% 아래로 떨어지면 보내요.",
-    "eventWithingsSyncFailed": "Withings 동기화 실패",
-    "eventWithingsSyncFailedDesc": "Withings 동기화가 여러 번 연달아 실패하면 보내요.",
     "eventSystemAlert": "시스템 공지",
     "eventSystemAlertDesc": "HealthLog 서버에서 오는 일반 메시지예요. 예를 들어 점검 시간이나 계정 안내.",
-    "eventPersonalRecord": "개인 기록",
-    "eventPersonalRecordDesc": "측정값이 이전 최고 기록을 넘으면 보내요.",
     "eventMoodReminder": "기분 알림",
     "eventMoodReminderDesc": "지금 기분을 기록하도록 매일 가볍게 알려줘요.",
     "eventCyclePeriodSoon": "생리 예정",
diff --git a/messages/nl.json b/messages/nl.json
index 1df8e98bf..e8140cc87 100644
--- a/messages/nl.json
+++ b/messages/nl.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Medicatieherinnering",
     "eventMedicationReminderDesc": "Wordt verstuurd op elk gepland innamemoment.",
-    "eventMeasurementAnomaly": "Ongebruikelijke meting",
-    "eventMeasurementAnomalyDesc": "Wordt verstuurd als een meetwaarde ver buiten je gebruikelijke bereik ligt.",
-    "eventComplianceLow": "Lage therapietrouw",
-    "eventComplianceLowDesc": "Wordt verstuurd als je therapietrouw over de afgelopen dagen onder 80% zakt.",
-    "eventWithingsSyncFailed": "Withings-synchronisatie mislukt",
-    "eventWithingsSyncFailedDesc": "Wordt verstuurd als de Withings-synchronisatie meerdere keren achter elkaar mislukt.",
     "eventSystemAlert": "Systeembericht",
     "eventSystemAlertDesc": "Algemene berichten van de HealthLog-server, bijv. onderhoudsvensters of opmerkingen over je account.",
-    "eventPersonalRecord": "Persoonlijk record",
-    "eventPersonalRecordDesc": "Wordt verstuurd als een meetwaarde je vorige beste overtreft.",
     "eventMoodReminder": "Stemmingsherinnering",
     "eventMoodReminderDesc": "Dagelijks seintje om je huidige stemming vast te leggen.",
     "eventCyclePeriodSoon": "Menstruatie op komst",
diff --git a/messages/pl.json b/messages/pl.json
index fa9457d77..123971e26 100644
--- a/messages/pl.json
+++ b/messages/pl.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Przypomnienie o leku",
     "eventMedicationReminderDesc": "Wysyłane o każdej zaplanowanej godzinie dawki.",
-    "eventMeasurementAnomaly": "Nietypowy pomiar",
-    "eventMeasurementAnomalyDesc": "Wysyłane, gdy odczyt znacznie odbiega od Twojego zwykłego zakresu.",
-    "eventComplianceLow": "Niska zgodność",
-    "eventComplianceLowDesc": "Wysyłane, gdy odsetek przyjętych dawek z ostatnich dni spadnie poniżej 80 %.",
-    "eventWithingsSyncFailed": "Synchronizacja Withings nie powiodła się",
-    "eventWithingsSyncFailedDesc": "Wysyłane, gdy synchronizacja Withings nie powiedzie się kilka razy z rzędu.",
     "eventSystemAlert": "Powiadomienie systemowe",
     "eventSystemAlertDesc": "Ogólne komunikaty z serwera HealthLog, na przykład okna serwisowe lub uwagi do konta.",
-    "eventPersonalRecord": "Rekord osobisty",
-    "eventPersonalRecordDesc": "Wysyłane, gdy odczyt pobije Twój dotychczasowy rekord.",
     "eventMoodReminder": "Przypomnienie o nastroju",
     "eventMoodReminderDesc": "Codzienne przypomnienie, aby zapisać swój aktualny nastrój.",
     "eventCyclePeriodSoon": "Zbliża się okres",
diff --git a/messages/pt-BR.json b/messages/pt-BR.json
index 6abf9a204..ea15f0429 100644
--- a/messages/pt-BR.json
+++ b/messages/pt-BR.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Lembrete de medicamento",
     "eventMedicationReminderDesc": "Enviado em cada horário programado de dose.",
-    "eventMeasurementAnomaly": "Medição incomum",
-    "eventMeasurementAnomalyDesc": "Enviado quando uma leitura está bem fora da sua faixa habitual.",
-    "eventComplianceLow": "Adesão baixa",
-    "eventComplianceLowDesc": "Enviado quando sua adesão nos últimos dias cai abaixo de 80%.",
-    "eventWithingsSyncFailed": "Falha na sincronização do Withings",
-    "eventWithingsSyncFailedDesc": "Enviado quando a sincronização do Withings falha várias tentativas seguidas.",
     "eventSystemAlert": "Aviso do sistema",
     "eventSystemAlertDesc": "Mensagens gerais do servidor do HealthLog, como janelas de manutenção ou notas da conta.",
-    "eventPersonalRecord": "Recorde pessoal",
-    "eventPersonalRecordDesc": "Enviado quando uma leitura supera seu recorde anterior.",
     "eventMoodReminder": "Lembrete de humor",
     "eventMoodReminderDesc": "Lembrete diário para registrar seu humor atual.",
     "eventCyclePeriodSoon": "Menstruação se aproximando",
diff --git a/messages/ru.json b/messages/ru.json
index 159cf4fab..6ca4cdc82 100644
--- a/messages/ru.json
+++ b/messages/ru.json
@@ -9314,16 +9314,8 @@
     },
     "eventMedicationReminder": "Напоминание о лекарстве",
     "eventMedicationReminderDesc": "Отправляется в каждое запланированное время приёма.",
-    "eventMeasurementAnomaly": "Необычное измерение",
-    "eventMeasurementAnomalyDesc": "Отправляется, когда измерение заметно выходит за ваш обычный диапазон.",
-    "eventComplianceLow": "Низкая приверженность",
-    "eventComplianceLowDesc": "Отправляется, когда приверженность за последние несколько дней падает ниже 80 %.",
-    "eventWithingsSyncFailed": "Сбой синхронизации Withings",
-    "eventWithingsSyncFailedDesc": "Отправляется, когда синхронизация Withings не удаётся несколько раз подряд.",
     "eventSystemAlert": "Системное уведомление",
     "eventSystemAlertDesc": "Общие сообщения от сервера HealthLog, например об окнах обслуживания или заметки об аккаунте.",
-    "eventPersonalRecord": "Личный рекорд",
-    "eventPersonalRecordDesc": "Отправляется, когда измерение превосходит ваш прежний лучший результат.",
     "eventMoodReminder": "Напоминание о настроении",
     "eventMoodReminderDesc": "Ежедневное напоминание отметить текущее настроение.",
     "eventCyclePeriodSoon": "Скоро менструация",
diff --git a/src/__tests__/baselines/version-stamp-comments.json b/src/__tests__/baselines/version-stamp-comments.json
index fc64b4a07..dd511fc2a 100644
--- a/src/__tests__/baselines/version-stamp-comments.json
+++ b/src/__tests__/baselines/version-stamp-comments.json
@@ -2606,7 +2606,7 @@
     "lib/notifications/senders/telegram.ts": 4,
     "lib/notifications/senders/web-push.ts": 5,
     "lib/notifications/senders/webhook.ts": 1,
-    "lib/notifications/types.ts": 21,
+    "lib/notifications/types.ts": 20,
     "lib/notifications/web-push-clear.ts": 1,
     "lib/nutrients/__tests__/catalog.test.ts": 1,
     "lib/nutrients/catalog.ts": 8,
diff --git a/src/app/api/notifications/preferences/route.ts b/src/app/api/notifications/preferences/route.ts
index 2a05c0a13..9d4518230 100644
--- a/src/app/api/notifications/preferences/route.ts
+++ b/src/app/api/notifications/preferences/route.ts
@@ -84,20 +84,25 @@ export const GET = apiHandler(async () => {
     globallyEnabled: globalToggles[ch.type] ?? true,
   }));
 
+  // Admin-only events (backup health) are listed for admins only, and an
+  // event nothing sends is listed for nobody: a switch for either would
+  // switch nothing. A stored row for an unlisted event stays in the table and
+  // is not served.
+  const eventTypes: string[] = eventTypesForRole(user.role);
   const preferences = channels.flatMap((ch) =>
-    ch.preferences.map((p) => ({
-      channelId: p.channelId,
-      eventType: p.eventType,
-      enabled: p.enabled,
-    })),
+    ch.preferences
+      .filter((p) => eventTypes.includes(p.eventType))
+      .map((p) => ({
+        channelId: p.channelId,
+        eventType: p.eventType,
+        enabled: p.enabled,
+      })),
   );
 
   return apiSuccess({
     channels: channelData,
     preferences,
-    // Admin-only events (backup health) are listed for admins only: nobody
-    // else is ever sent one, so a switch for it would switch nothing.
-    eventTypes: eventTypesForRole(user.role),
+    eventTypes,
     // What an event does on a channel with no stored row, resolved for this
     // account by the same function the dispatcher asks. A client renders a
     // switch without a row from this map, never from its own copy of the
diff --git a/src/app/notifications/__tests__/page.test.tsx b/src/app/notifications/__tests__/page.test.tsx
index 83b3160cd..14017af1f 100644
--- a/src/app/notifications/__tests__/page.test.tsx
+++ b/src/app/notifications/__tests__/page.test.tsx
@@ -143,8 +143,8 @@ describe("NotificationsPage", () => {
         },
       ],
       preferences: [],
-      eventTypes: ["MOOD_REMINDER", "PERSONAL_RECORD"],
-      eventDefaults: { MOOD_REMINDER: true, PERSONAL_RECORD: false },
+      eventTypes: ["MOOD_REMINDER", "DAILY_BRIEFING"],
+      eventDefaults: { MOOD_REMINDER: true, DAILY_BRIEFING: false },
     };
     const html = render();
     const state = (label: string) =>
@@ -152,10 +152,10 @@ describe("NotificationsPage", () => {
         `aria-label="${label} - Telegram"[^>]*data-state="(checked|unchecked)"|data-state="(checked|unchecked)"[^>]*aria-label="${label} - Telegram"`,
       ).exec(html);
     const mood = state("Mood reminder");
-    const record = state("Personal record");
+    const briefing = state("Daily briefing");
     expect(mood, "mood switch rendered").not.toBeNull();
     expect(mood?.[1] ?? mood?.[2]).toBe("checked");
-    expect(record?.[1] ?? record?.[2]).toBe("unchecked");
+    expect(briefing?.[1] ?? briefing?.[2]).toBe("unchecked");
   });
 
   it("a stored row still wins over the default", () => {
diff --git a/src/lib/notifications/__tests__/event-labels.test.ts b/src/lib/notifications/__tests__/event-labels.test.ts
index ff2464768..b0ea9bd5a 100644
--- a/src/lib/notifications/__tests__/event-labels.test.ts
+++ b/src/lib/notifications/__tests__/event-labels.test.ts
@@ -1,7 +1,8 @@
 /**
  * Every event type the /notifications matrix renders has words to render.
  *
- * The matrix builds its rows from `EVENT_TYPES` and derives each row's label
+ * The matrix builds its rows from the event list the preferences read serves
+ * (`eventTypesForRole`) and derives each row's label
  * and description key from the event name, so a new event type silently gets a
  * row whether or not anybody wrote the two strings for it. That is not a
  * theory: `SECURITY_ALERT` shipped in v1.23 and rendered the raw key
@@ -20,7 +21,10 @@
 import { describe, expect, it } from "vitest";
 import { readdirSync, readFileSync } from "node:fs";
 import { join } from "node:path";
-import { EVENT_TYPES } from "@/lib/notifications/types";
+import {
+  UNSENT_EVENT_TYPES,
+  eventTypesForRole,
+} from "@/lib/notifications/types";
 import {
   eventDescriptionTranslationKey,
   eventTranslationKey,
@@ -60,14 +64,16 @@ describe("notification event labels", () => {
     );
   });
 
-  it("has a label and a description for every event type, in every locale", () => {
+  it("has a label and a description for every listed event type, in every locale", () => {
     expect(LOCALES.length).toBeGreaterThanOrEqual(6);
-    expect(EVENT_TYPES.length).toBeGreaterThan(10);
+    // ADMIN sees the widest list: every event that has a switch at all.
+    const listed = eventTypesForRole("ADMIN");
+    expect(listed.length).toBeGreaterThan(10);
 
     const missing: string[] = [];
     for (const locale of LOCALES) {
       const root = bundle(locale);
-      for (const eventType of EVENT_TYPES) {
+      for (const eventType of listed) {
         for (const key of [
           eventTranslationKey(eventType),
           eventDescriptionTranslationKey(eventType),
@@ -82,6 +88,24 @@ describe("notification event labels", () => {
 
     expect(missing).toEqual([]);
   });
+
+  it("keeps no label for an event nothing sends", () => {
+    const leftover: string[] = [];
+    for (const locale of LOCALES) {
+      const root = bundle(locale);
+      for (const eventType of UNSENT_EVENT_TYPES) {
+        for (const key of [
+          eventTranslationKey(eventType),
+          eventDescriptionTranslationKey(eventType),
+        ]) {
+          if (resolve(root, key) !== undefined) {
+            leftover.push(`${locale} still has ${key}`);
+          }
+        }
+      }
+    }
+    expect(leftover).toEqual([]);
+  });
 });
 
 describe("the delegated-dose push copy", () => {
diff --git a/src/lib/notifications/__tests__/event-types-for-role.test.ts b/src/lib/notifications/__tests__/event-types-for-role.test.ts
new file mode 100644
index 000000000..9c0ea467f
--- /dev/null
+++ b/src/lib/notifications/__tests__/event-types-for-role.test.ts
@@ -0,0 +1,40 @@
+/**
+ * The event types a person is shown a switch for.
+ *
+ * The preferences read lists `eventTypesForRole(role)` as the matrix rows and
+ * serves stored rows only for those. An event nothing sends is listed for
+ * nobody; backup health for admins only.
+ */
+import { describe, expect, it } from "vitest";
+
+import {
+  EVENT_TYPES,
+  UNSENT_EVENT_TYPES,
+  eventTypesForRole,
+  isSentEventType,
+} from "@/lib/notifications/types";
+
+describe("eventTypesForRole", () => {
+  it.each(["USER", "ADMIN"])("lists no event nothing sends (%s)", (role) => {
+    const listed: string[] = eventTypesForRole(role);
+    expect(listed).toContain("MEDICATION_REMINDER");
+    for (const unsent of UNSENT_EVENT_TYPES) {
+      expect(listed).not.toContain(unsent);
+    }
+  });
+
+  it("lists backup health for an admin only", () => {
+    expect(eventTypesForRole("USER")).not.toContain("BACKUP_HEALTH");
+    expect(eventTypesForRole("ADMIN")).toContain("BACKUP_HEALTH");
+  });
+
+  it("keeps the declaration order", () => {
+    expect(eventTypesForRole("ADMIN")).toEqual(
+      EVENT_TYPES.filter((type) => isSentEventType(type)),
+    );
+  });
+
+  it("knows no event outside the union", () => {
+    expect(isSentEventType("NOT_AN_EVENT")).toBe(false);
+  });
+});
diff --git a/src/lib/notifications/__tests__/tap-target.test.ts b/src/lib/notifications/__tests__/tap-target.test.ts
index 258a4edce..31b903d67 100644
--- a/src/lib/notifications/__tests__/tap-target.test.ts
+++ b/src/lib/notifications/__tests__/tap-target.test.ts
@@ -1,9 +1,9 @@
 /**
  * The event → tap-target map and its resolver.
  *
- * Walks `EVENT_TYPES` rather than the map's own keys, so an event type added
- * to the union without a decision about where it leads fails here (the
- * `Record<EventType, …>` type already refuses to compile without one; this
+ * Walks the sent event types rather than the map's own keys, so an event type
+ * added to the union without a decision about where it leads fails here (the
+ * `Record<SentEventType, …>` type already refuses to compile without one; this
  * pins that every entry is also a usable path).
  */
 import { afterEach, describe, expect, it, vi } from "vitest";
@@ -19,6 +19,8 @@ import { buildNtfyMessage } from "@/lib/notifications/senders/ntfy";
 import { buildWebhookBody } from "@/lib/notifications/senders/webhook";
 import {
   EVENT_TYPES,
+  UNSENT_EVENT_TYPES,
+  isSentEventType,
   type EventType,
   type NotificationPayload,
 } from "@/lib/notifications/types";
@@ -35,6 +37,8 @@ import {
 /** Events never shown to the user, so they carry no target. */
 const SILENT: ReadonlySet<EventType> = new Set(["MEDICATION_INTAKE_SYNC"]);
 
+const SENT = EVENT_TYPES.filter(isSentEventType);
+
 const ORIGINAL = {
   APP_URL: process.env.APP_URL,
   NEXT_PUBLIC_APP_URL: process.env.NEXT_PUBLIC_APP_URL,
@@ -48,9 +52,9 @@ afterEach(() => {
 });
 
 describe("NOTIFICATION_TAP_PATHS", () => {
-  it("names a target for every event type", () => {
-    expect(EVENT_TYPES.length).toBeGreaterThan(0);
-    for (const eventType of EVENT_TYPES) {
+  it("names a target for every sent event type", () => {
+    expect(SENT.length).toBeGreaterThan(0);
+    for (const eventType of SENT) {
       expect(
         Object.prototype.hasOwnProperty.call(NOTIFICATION_TAP_PATHS, eventType),
         `${eventType} has no tap target`,
@@ -68,17 +72,20 @@ describe("NOTIFICATION_TAP_PATHS", () => {
   it("keeps the targets the issue names", () => {
     expect(NOTIFICATION_TAP_PATHS.MOOD_REMINDER).toBe("/mood?add=1");
     expect(NOTIFICATION_TAP_PATHS.DAILY_BRIEFING).toBe("/");
-    expect(NOTIFICATION_TAP_PATHS.WITHINGS_SYNC_FAILED).toBe(
-      "/settings/integrations",
-    );
     expect(NOTIFICATION_TAP_PATHS.MEDICATION_REMINDER).toBe("/medications");
   });
 
-  it("has no entry for an event type outside the union", () => {
+  it("has no entry for an event type outside the sent set", () => {
     expect(Object.keys(NOTIFICATION_TAP_PATHS).sort()).toEqual(
-      [...EVENT_TYPES].sort(),
+      [...SENT].sort(),
     );
   });
+
+  it("gives an event nothing sends no target", () => {
+    for (const eventType of UNSENT_EVENT_TYPES) {
+      expect(resolveTapPath({ eventType }), eventType).toBeNull();
+    }
+  });
 });
 
 describe("resolveTapPath", () => {
@@ -212,7 +219,7 @@ describe("tap target on every kind and channel", () => {
   it.each(variants)("$name", async ({ extra, neutral }) => {
     process.env.APP_URL = "https://health.example";
     let checked = 0;
-    for (const eventType of EVENT_TYPES) {
+    for (const eventType of SENT) {
       const payload = await withDeliveryLinks(
         { userId: "u1", title: "t", message: "m", eventType, ...extra },
         "guardian-1",
@@ -244,6 +251,6 @@ describe("tap target on every kind and channel", () => {
       ).toBe(url);
       checked += 1;
     }
-    expect(checked).toBe(EVENT_TYPES.length - SILENT.size);
+    expect(checked).toBe(SENT.length - SILENT.size);
   });
 });
diff --git a/src/lib/notifications/tap-target.ts b/src/lib/notifications/tap-target.ts
index 60e1ac7c1..5e894ca8e 100644
--- a/src/lib/notifications/tap-target.ts
+++ b/src/lib/notifications/tap-target.ts
@@ -13,29 +13,30 @@
  *  - Webhook  → `url` in the body (absolute URL)
  *  - Email    → a link line under the body (absolute URL)
  *
- * The map is typed `Record<EventType, …>`, so a new event type without a
- * target does not compile, and `tap-target.test.ts` walks `EVENT_TYPES` so a
- * target that stops resolving fails there too.
+ * The map is typed `Record<SentEventType, …>`, so a new event type without a
+ * target does not compile, and `tap-target.test.ts` walks the sent event
+ * types so a target that stops resolving fails there too. An event type
+ * nothing sends (`UNSENT_EVENT_TYPES`) has no entry and resolves to no target.
  *
  * A producer may name a more precise path in `metadata.url` (the low-stock
  * alert opens the medication's stock tab, the Coach nudge opens its own
  * conversation). That override is accepted only as a same-origin path, so a
  * value that names another host can never become a click target.
  */
-import type { EventType, NotificationPayload } from "@/lib/notifications/types";
+import type {
+  EventType,
+  NotificationPayload,
+  SentEventType,
+} from "@/lib/notifications/types";
 import { isManagedGuardianDelivery } from "@/lib/notifications/managed-delivery";
 
 /**
  * The default in-app path per event type. `null` means the event is never
  * shown to the user (a silent background push), so it carries no target.
  */
-export const NOTIFICATION_TAP_PATHS: Record<EventType, string | null> = {
+export const NOTIFICATION_TAP_PATHS: Record<SentEventType, string | null> = {
   MEDICATION_REMINDER: "/medications",
-  MEASUREMENT_ANOMALY: "/measurements",
-  COMPLIANCE_LOW: "/insights/medications",
-  WITHINGS_SYNC_FAILED: "/settings/integrations",
   SYSTEM_ALERT: "/",
-  PERSONAL_RECORD: "/achievements",
   // `?add=1` opens the mood entry sheet on the first paint, and only in the
   // recipient's own record: a session switched into another record opens the
   // page without the sheet (`src/app/mood/page-client.tsx`). No other target
@@ -97,7 +98,9 @@ export function resolveTapPath(
     "eventType" | "metadata" | "discreet" | "recordUserId" | "recipientUserId"
   >,
 ): string | null {
-  const fallback = NOTIFICATION_TAP_PATHS[payload.eventType];
+  const paths: Partial<Record<EventType, string | null>> =
+    NOTIFICATION_TAP_PATHS;
+  const fallback = paths[payload.eventType];
   if (fallback === null || fallback === undefined) return null;
   if (isManagedGuardianDelivery(payload)) return NEUTRAL_TAP_PATH;
   if (payload.discreet) return NEUTRAL_TAP_PATH;
diff --git a/src/lib/notifications/types.ts b/src/lib/notifications/types.ts
index ea05bf42a..a86526350 100644
--- a/src/lib/notifications/types.ts
+++ b/src/lib/notifications/types.ts
@@ -2,9 +2,8 @@ import type { Locale } from "@/lib/i18n/config";
 import type { NotificationQuickAction } from "@/lib/notifications/action-token";
 
 /**
- * Notification system type definitions.
- * Channels: Telegram, ntfy, Web Push
- * Events: medication reminders, anomalies, compliance, etc.
+ * Notification system type definitions: the channels a notification travels
+ * on and the event types it can carry.
  */
 
 export const CHANNEL_TYPES = [
@@ -30,13 +29,12 @@ export type ChannelType = (typeof CHANNEL_TYPES)[number];
 
 export const EVENT_TYPES = [
   "MEDICATION_REMINDER",
+  // The next three and PERSONAL_RECORD are never sent; see
+  // `UNSENT_EVENT_TYPES`.
   "MEASUREMENT_ANOMALY",
   "COMPLIANCE_LOW",
   "WITHINGS_SYNC_FAILED",
   "SYSTEM_ALERT",
-  // v1.4.25 — PR detection. Default OFF (see DEFAULT_EVENT_PREFS
-  // below) so a multi-year Apple Health backfill doesn't fire hundreds
-  // of pushes during initial sync.
   "PERSONAL_RECORD",
   // v0.5.4 ios-coord — daily mood-reminder nudge. Default OFF on the
   // per-event policy (see DEFAULT_EVENT_PREFS) and additionally gated
@@ -112,8 +110,7 @@ export const EVENT_TYPES = [
   // a deterministic floor). It is a nudge, NEVER the anomaly channel: it is
   // dispatched non-urgent, fired at most once per user per local day (the
   // `push_attempts` ledger is the frequency anchor), and only inside a local
-  // morning window, so a concerning reading always stays on
-  // `MEASUREMENT_ANOMALY` and this never bypasses Focus.
+  // morning window, so it never bypasses Focus.
   "DAILY_BRIEFING",
   // v1.36.x — somebody with a write grant on this record marked one of the
   // owner's doses. The only notification a delegated write produces: every
@@ -154,11 +151,9 @@ export type ManagedGuardianFanoutEvent =
  * exists. The dispatcher reads this to decide whether to fire on a
  * channel that has never been explicitly toggled for the event.
  *
- * Every event defaults to ON (the original opt-out model) EXCEPT
- * `PERSONAL_RECORD`: PRs are silent by default and require the user
- * to explicitly enable them in `/settings/notifications`. Rationale —
- * a fresh iOS install backfilling years of HealthKit history would
- * otherwise saturate the user's lock-screen on first launch.
+ * Events default to ON (the original opt-out model); the ones that
+ * default OFF say why beside their entry. The entries for
+ * `UNSENT_EVENT_TYPES` decide nothing, since nothing dispatches them.
  */
 export const EVENT_DEFAULT_ENABLED: Record<EventType, boolean> = {
   MEDICATION_REMINDER: true,
@@ -229,11 +224,38 @@ export const EVENT_DEFAULT_ENABLED: Record<EventType, boolean> = {
 /** Event types only an admin is ever sent, and only an admin is shown. */
 export const ADMIN_ONLY_EVENT_TYPES: readonly EventType[] = ["BACKUP_HEALTH"];
 
+/**
+ * Event types nothing sends. They stay in `EVENT_TYPES` because the
+ * preference write and stored preference rows still name them, but nobody is
+ * shown a switch for them and they carry no tap target: a switch for an event
+ * nobody emits would switch nothing. Withings failures reach admins as
+ * `SYSTEM_ALERT`.
+ */
+export const UNSENT_EVENT_TYPES = [
+  "MEASUREMENT_ANOMALY",
+  "COMPLIANCE_LOW",
+  "WITHINGS_SYNC_FAILED",
+  "PERSONAL_RECORD",
+] as const satisfies readonly EventType[];
+
+/** The event types something sends. */
+export type SentEventType = Exclude<
+  EventType,
+  (typeof UNSENT_EVENT_TYPES)[number]
+>;
+
+export function isSentEventType(type: string): type is SentEventType {
+  return (
+    (EVENT_TYPES as readonly string[]).includes(type) &&
+    !(UNSENT_EVENT_TYPES as readonly string[]).includes(type)
+  );
+}
+
 /** The event types a person with `role` can receive, in matrix order. */
-export function eventTypesForRole(role: string): EventType[] {
-  return role === "ADMIN"
-    ? [...EVENT_TYPES]
-    : EVENT_TYPES.filter((type) => !ADMIN_ONLY_EVENT_TYPES.includes(type));
+export function eventTypesForRole(role: string): SentEventType[] {
+  return EVENT_TYPES.filter(isSentEventType).filter(
+    (type) => role === "ADMIN" || !ADMIN_ONLY_EVENT_TYPES.includes(type),
+  );
 }
 
 export const CHANNEL_TYPE_LABELS: Record<ChannelType, string> = {
diff --git a/src/lib/openapi/routes/notifications.ts b/src/lib/openapi/routes/notifications.ts
index 7c639e155..b3ab7d429 100644
--- a/src/lib/openapi/routes/notifications.ts
+++ b/src/lib/openapi/routes/notifications.ts
@@ -76,7 +76,7 @@ const notificationPreferencesResponse = z
     eventTypes: z
       .array(z.string())
       .describe(
-        "Every event category the server knows, in declaration order — the list a client renders rows for.",
+        "The event categories this account is shown a switch for, in declaration order — the list a client renders rows for. A category nothing sends is not listed, and `preferences` carries no stored row for it.",
       ),
     eventDefaults: z
       .record(eventTypeEnum, z.boolean())
@@ -87,7 +87,7 @@ const notificationPreferencesResponse = z
   .meta({
     id: "NotificationPreferencesResponse",
     description:
-      "The caller's notification channels, their stored per-event overrides, and the full event vocabulary.",
+      "The caller's notification channels, their stored per-event overrides, and the event categories they can switch.",
   });
 
 const notificationPreferenceRequest = notificationPreferenceSchema.meta({
diff --git a/tests/integration/notification-event-defaults.test.ts b/tests/integration/notification-event-defaults.test.ts
index 588a4700b..be8d325e3 100644
--- a/tests/integration/notification-event-defaults.test.ts
+++ b/tests/integration/notification-event-defaults.test.ts
@@ -131,3 +131,49 @@ describe("event defaults: the matrix shows what delivery does", () => {
     );
   });
 });
+
+describe("events nothing sends", () => {
+  it("are listed for nobody, and their stored rows are not served", async () => {
+    const userId = await seedAccount(false);
+    const prisma = getPrismaClient();
+    const channel = await prisma.notificationChannel.findFirstOrThrow({
+      where: { userId },
+    });
+    // Rows written while the four switches were still offered.
+    await prisma.notificationPreference.createMany({
+      data: [
+        { channelId: channel.id, eventType: "PERSONAL_RECORD", enabled: true },
+        {
+          channelId: channel.id,
+          eventType: "MEASUREMENT_ANOMALY",
+          enabled: false,
+        },
+        {
+          channelId: channel.id,
+          eventType: "MEDICATION_REMINDER",
+          enabled: false,
+        },
+      ],
+    });
+
+    const { GET } = await import("@/app/api/notifications/preferences/route");
+    const res = await GET();
+    expect(res.status).toBe(200);
+    const body = (await res.json()) as {
+      data: {
+        eventTypes: string[];
+        preferences: { eventType: string; enabled: boolean }[];
+      };
+    };
+    const { UNSENT_EVENT_TYPES } = await import("@/lib/notifications/types");
+    for (const unsent of UNSENT_EVENT_TYPES) {
+      expect(body.data.eventTypes).not.toContain(unsent);
+    }
+    expect(body.data.preferences).toEqual([
+      expect.objectContaining({
+        eventType: "MEDICATION_REMINDER",
+        enabled: false,
+      }),
+    ]);
+  });
+});