diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index 4c7f73d4d..1754488a8 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -47714,10 +47714,10 @@ components:
         remindersActive:
           type: boolean
           description: "v1.42.2 — whether the server sends dose reminders for this medication: true only when
-            `notificationsEnabled` is on, the medication is `active`, its intake is tracked (`trackIntake`), it is not
-            `asNeeded`, and `autoMarkTaken` is off. The same decision gates every server-side reminder send. A client
-            that arms local reminders arms them from this, not from `notificationsEnabled`. Read-only — computed, not
-            stored."
+            `notificationsEnabled` is on, the medication is `active`, its course has not ended (`endsOn` is today or
+            later on the person's clock, or unset), its intake is tracked (`trackIntake`), it is not `asNeeded`, and
+            `autoMarkTaken` is off. The same decision gates every server-side reminder send. A client that arms local
+            reminders arms them from this, not from `notificationsEnabled`. Read-only — computed, not stored."
         nextDueAt:
           anyOf:
             - type: string
@@ -83031,10 +83031,11 @@ components:
             - type: "null"
         remindersActive:
           description: "Present on the READ paths only (list and single GET). v1.42.2 — whether the server sends dose reminders
-            for this medication: true only when `notificationsEnabled` is on, the medication is `active`, its intake is
-            tracked (`trackIntake`), it is not `asNeeded`, and `autoMarkTaken` is off. The same decision gates every
-            server-side reminder send. A client that arms local reminders arms them from this, not from
-            `notificationsEnabled`. Read-only — computed, not stored."
+            for this medication: true only when `notificationsEnabled` is on, the medication is `active`, its course has
+            not ended (`endsOn` is today or later on the person's clock, or unset), its intake is tracked
+            (`trackIntake`), it is not `asNeeded`, and `autoMarkTaken` is off. The same decision gates every server-side
+            reminder send. A client that arms local reminders arms them from this, not from `notificationsEnabled`.
+            Read-only — computed, not stored."
           type: boolean
         nextDueAt:
           description: "Present on the READ paths only — the list and single GET compute it; the create / update responses return
diff --git a/e2e/timeline.spec.ts b/e2e/timeline.spec.ts
index e9ec9e2a3..39b4d40fb 100644
--- a/e2e/timeline.spec.ts
+++ b/e2e/timeline.spec.ts
@@ -79,6 +79,57 @@ test("opens on three months when the URL names no zoom", async ({ page }) => {
   await setTimelineModule(page, false);
 });
 
+test("only old data opens on everything, and an empty window offers it", async ({
+  page,
+}) => {
+  await setTimelineModuleOn(page);
+  const log = await mockTimeline(page, "full", TODAY, { onlyOld: true });
+  await page.goto("/timeline");
+  // The default three months hold nothing: the page opens on everything,
+  // without writing it into the URL.
+  await expect(
+    page.locator('[data-slot="timeline-zoom"] [data-value="all"]'),
+  ).toHaveAttribute("aria-checked", "true", { timeout: 20_000 });
+  await expect(page.locator('[data-slot="timeline-chart"]')).toBeVisible();
+  await expect(page).toHaveURL(/\/timeline$/);
+  expect(log.timelineQueries.map((q) => q.get("zoom"))).toEqual(
+    expect.arrayContaining(["quarter", "all"]),
+  );
+
+  // Three months asked for by name stay three months, and offer the rest.
+  await page.goto("/timeline?zoom=quarter");
+  const empty = page.locator('[data-slot="timeline-window-empty"]');
+  await expect(empty).toBeVisible({ timeout: 20_000 });
+  await page.locator('[data-slot="timeline-show-everything"]').click();
+  await expect(page).toHaveURL(/zoom=all/);
+  await expect(page.locator('[data-slot="timeline-chart"]')).toBeVisible();
+
+  // The next test starts from the module switched off.
+  await setTimelineModule(page, false);
+});
+
+test("a young record opens on three months starting at its first entry", async ({
+  page,
+}) => {
+  await setTimelineModuleOn(page);
+  // The record starts ten days ago: the window spans the four-week minimum.
+  const day = (offset: number) => {
+    const [y, m, d] = TODAY.split("-").map(Number);
+    return new Date(Date.UTC(y, m - 1, d + offset)).toISOString().slice(0, 10);
+  };
+  await mockTimeline(page, "full", TODAY, { dataFrom: day(-10) });
+  await page.goto("/timeline");
+  await expect(
+    page.locator('[data-slot="timeline-zoom"] [data-value="quarter"]'),
+  ).toHaveAttribute("aria-checked", "true", { timeout: 20_000 });
+  await expect(page.locator('[data-slot="timeline-chart"]')).toHaveAttribute(
+    "data-window-from",
+    day(-27),
+  );
+  // The next test starts from the module switched off.
+  await setTimelineModule(page, false);
+});
+
 test("switching it on opens the readiness inventory, which leads to the timeline", async ({
   page,
 }) => {
@@ -507,12 +558,13 @@ test("a chosen range lives in the URL: reload keeps it, Back returns to it", asy
   await popover.locator('[data-slot="timeline-range-apply"]').click();
   await expect(page).toHaveURL(new RegExp(`from=${later}&to=${TODAY}`));
 
-  // A parameter it cannot read opens the whole record.
+  // A parameter it cannot read opens the same default as no zoom: this
+  // record has entries in the last three months, so three months.
   await page.goto("/timeline?zoom=range&from=nonsense&to=2026-01-01");
-  await expect(zoom("all")).toHaveAttribute("aria-checked", "true", {
+  await expect(zoom("quarter")).toHaveAttribute("aria-checked", "true", {
     timeout: 20_000,
   });
-  await expect(desktop).toHaveAttribute("data-zoom", "all");
+  await expect(desktop).toHaveAttribute("data-zoom", "quarter");
 });
 
 async function setTimelineModuleOn(page: Page) {
@@ -934,7 +986,8 @@ test("the day's strip stays at the right edge, opens and closes the day, and nev
     await expect(strip).toHaveAttribute("data-state", "closed");
     await expect(toggle).toBeFocused();
     expect(await where()).toEqual(closed);
-    await expect(page).toHaveURL(/\/timeline$/);
+    // Closing the day takes `?day=` out and leaves the zoom it opened with.
+    await expect(page).toHaveURL(/\/timeline\?zoom=all$/);
   }
 
   // Both themes, open at 1440.
diff --git a/e2e/utils/mock-timeline.ts b/e2e/utils/mock-timeline.ts
index c99ebda10..512b90c8f 100644
--- a/e2e/utils/mock-timeline.ts
+++ b/e2e/utils/mock-timeline.ts
@@ -822,11 +822,19 @@ export interface TimelineMockLog {
 /**
  * Answer the timeline routes from the `full` or `ready` record. Returns a
  * log of what the page asked for and posted, for assertions.
+ *
+ * `onlyOld`: the record's entries all lie before the last year, so a
+ * quarter or year window answers empty (with the record's `dataFrom`) and
+ * only everything, or a chosen range, carries them.
+ *
+ * `dataFrom`: the record's first entry as the answers name it, to stand in
+ * for a young record.
  */
 export async function mockTimeline(
   page: Page,
   state: "full" | "ready",
   today: string,
+  options: { onlyOld?: boolean; dataFrom?: string } = {},
 ): Promise<TimelineMockLog> {
   const log: TimelineMockLog = { timelineQueries: [], lifeEventPosts: [] };
   await page.route(/\/api\/timeline\/readiness(\?|$)/, (route) =>
@@ -843,7 +851,19 @@ export async function mockTimeline(
     const from = url.searchParams.get("from");
     const to = url.searchParams.get("to");
     const bucket = bucketFor(zoom, from, to);
-    const dataFrom = state === "full" ? "2019-01-01" : "2024-05-01";
+    const dataFrom =
+      options.dataFrom ?? (state === "full" ? "2019-01-01" : "2024-05-01");
+    if (options.onlyOld && (zoom === "quarter" || zoom === "year")) {
+      return json(route, 200, {
+        ...body,
+        zoom,
+        bucket,
+        range: { from, to, dataFrom },
+        lanes: body.lanes.map((lane) => ({ ...lane, items: [] })),
+        standing: [],
+        series: values.map((key) => ({ key, unit: null, points: [] })),
+      });
+    }
     // A chosen range answers its own window, as the server does.
     const chosen = zoom === "range" && from && to;
     const all =
@@ -854,7 +874,11 @@ export async function mockTimeline(
       ...body,
       zoom,
       bucket,
-      ...(chosen ? { range: { from, to, dataFrom } } : {}),
+      ...(chosen
+        ? { range: { from, to, dataFrom } }
+        : options.dataFrom
+          ? { range: { ...body.range, dataFrom } }
+          : {}),
       // Any other value the menu offers answers a flat line of its own.
       series: values.map(
         (key) =>
diff --git a/src/app/api/admin/notifications/reminder-check/route.ts b/src/app/api/admin/notifications/reminder-check/route.ts
index efdd13547..b25c36d1d 100644
--- a/src/app/api/admin/notifications/reminder-check/route.ts
+++ b/src/app/api/admin/notifications/reminder-check/route.ts
@@ -185,7 +185,11 @@ export const POST = apiHandler(async (request: NextRequest) => {
 
       // v1.42.2 — a medication whose doses are recorded automatically
       // is never reminded, here or in the worker.
-      if (isOverdue && !hasEvent && sendsMedicationReminders(med)) {
+      if (
+        isOverdue &&
+        !hasEvent &&
+        sendsMedicationReminders(med, { now, timeZone: userTz })
+      ) {
         const doseInfo = schedule.dose ?? med.dose;
         const timeWindow = `${schedule.windowStart}–${schedule.windowEnd}`;
 
diff --git a/src/app/api/medications/[id]/route.ts b/src/app/api/medications/[id]/route.ts
index dc5d768f8..212716afe 100644
--- a/src/app/api/medications/[id]/route.ts
+++ b/src/app/api/medications/[id]/route.ts
@@ -32,6 +32,10 @@ import {
   toRevisionPayloadEntry,
 } from "@/lib/medications/scheduling/schedule-eras";
 import type { Prisma } from "@/generated/prisma/client";
+import {
+  loadAutoTakeRollingAnchors,
+  moveAutoTakeFloorToNow,
+} from "@/lib/medications/auto-take";
 import {
   computeDisplayDue,
   OVERDUE_LOOKBACK_MS,
@@ -179,6 +183,16 @@ export const GET = apiHandler(
     // v1.39.1 (#1033) — intake tracking off: nothing is due from the
     // stored rows, and no runway derives from them.
     const liveSchedules = dueSchedules(medication);
+    const userTz = user.timezone || DEFAULT_TIMEZONE;
+    // v1.42.2 — under auto-take a rolling cadence stands where the job will
+    // record next (see `auto-take.ts`).
+    const engineLastIntakeAt = await loadAutoTakeRollingAnchors(prisma, {
+      userId: user.id,
+      medicationIds: medication.autoMarkTaken ? [id] : [],
+      now,
+      userTz,
+      lastIntakeAt: () => lastIntake?.takenAt ?? null,
+    });
     const display = computeDisplayDue({
       medication: {
         id: medication.id,
@@ -189,8 +203,8 @@ export const GET = apiHandler(
       },
       schedules: liveSchedules,
       now,
-      userTz: user.timezone || DEFAULT_TIMEZONE,
-      lastIntakeAt: lastIntake?.takenAt ?? null,
+      userTz,
+      lastIntakeAt: engineLastIntakeAt(id),
       resolvedSlots: resolvedRows.map(toResolvedSlotMark),
       eraStart: latestRevision?.validUntil ?? null,
     });
@@ -266,7 +280,10 @@ export const GET = apiHandler(
       ...courseFields,
       nextDueAt: display ? display.at.toISOString() : null,
       // v1.42.2 — the server's own reminder decision, published resolved.
-      remindersActive: sendsMedicationReminders(medication),
+      remindersActive: sendsMedicationReminders(medication, {
+        now,
+        timeZone: userTz,
+      }),
       nextDueOverdue: display?.overdue ?? false,
       // v1.39.4 (#1040) — see `resolveIntakeActionability`.
       ...resolveIntakeActionability(
@@ -1011,6 +1028,9 @@ export const PUT = apiHandler(
             where: { medicationId: id, userId: user.id, resumedAt: null },
             data: { resumedAt: new Date() },
           });
+          // v1.42.2 — made active again: the auto-take pass starts from
+          // now, never filling the inactive days as taken.
+          await moveAutoTakeFloorToNow(tx, id);
         }
 
         // v1.40 (#1024) — write the window onto the latest course and
@@ -1117,6 +1137,9 @@ export const PUT = apiHandler(
             active: existing.active,
             asNeeded: existing.asNeeded,
             trackIntake: existing.trackIntake,
+            // v1.42.2 — switching automatic recording on or off is a change
+            // to how doses are recorded, so the row names it.
+            autoMarkTaken: existing.autoMarkTaken,
             endsOn: existing.endsOn,
           },
           after: {
@@ -1125,6 +1148,7 @@ export const PUT = apiHandler(
             active: medication.active,
             asNeeded: medication.asNeeded,
             trackIntake: medication.trackIntake,
+            autoMarkTaken: medication.autoMarkTaken,
             endsOn: medication.endsOn,
           },
         }),
diff --git a/src/app/api/medications/route.ts b/src/app/api/medications/route.ts
index d6de31e15..e2fd46d76 100644
--- a/src/app/api/medications/route.ts
+++ b/src/app/api/medications/route.ts
@@ -491,7 +491,13 @@ async function postMedication(request: NextRequest): Promise<Response> {
   await auditLog("medication.create", {
     userId: user.id,
     ipAddress: getClientIp(request),
-    details: { medicationId: medication.id, name },
+    details: {
+      medicationId: medication.id,
+      name,
+      // v1.42.2 — a medication created with its doses recorded
+      // automatically says so in its audit row.
+      autoMarkTaken: medication.autoMarkTaken,
+    },
   });
 
   annotate({
diff --git a/src/app/api/search/route.ts b/src/app/api/search/route.ts
index 8493f39a7..0ffcd61df 100644
--- a/src/app/api/search/route.ts
+++ b/src/app/api/search/route.ts
@@ -90,7 +90,7 @@ export const POST = apiHandler(async (request: NextRequest) => {
     });
   }
 
-  const slot = beginSearch(actor.id);
+  const slot = beginSearch(actor.id, user.id);
   try {
     const [modules, domainVisible, timezone] = await Promise.all([
       resolveModuleMap(user.id),
diff --git a/src/components/timeline/__tests__/timeline-default-zoom.test.tsx b/src/components/timeline/__tests__/timeline-default-zoom.test.tsx
new file mode 100644
index 000000000..2ebf69f22
--- /dev/null
+++ b/src/components/timeline/__tests__/timeline-default-zoom.test.tsx
@@ -0,0 +1,179 @@
+/**
+ * v1.42.2 — the timeline never opens on a dead end.
+ *
+ *   - Opened without a zoom, when the default three months hold nothing but
+ *     the record has older entries, the page shows everything (and leaves
+ *     the URL alone).
+ *   - A window named in the URL stays that window; when it is empty and the
+ *     record has entries before it, it offers "Show everything".
+ *   - An empty record keeps the plain empty state.
+ */
+import { beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
+import { renderToStaticMarkup } from "react-dom/server";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+
+import type { TimelineResponse, TimelineZoom } from "@/lib/day/contract";
+import { I18nProvider } from "@/lib/i18n/context";
+
+import { TODAY, fullTimeline, readiness } from "./timeline-fixture";
+
+let search = new URLSearchParams();
+let dataFrom: string | null = "2019-01-01";
+/** A young record: everything sits inside the default three months. */
+let young = false;
+const asked: TimelineZoom[] = [];
+
+/** Everything for `all`; any other window holds nothing. */
+function answer(zoom: TimelineZoom, from: string | null, to: string | null) {
+  const full = fullTimeline();
+  if (young) {
+    return {
+      ...full,
+      zoom,
+      range: { from: from ?? "2026-08-01", to: to ?? TODAY, dataFrom },
+    };
+  }
+  if (zoom === "all" && dataFrom !== null) return { ...full, zoom };
+  const empty: TimelineResponse = {
+    ...full,
+    zoom,
+    range: { from: from ?? "2026-08-01", to: to ?? TODAY, dataFrom },
+    lanes: full.lanes.map((lane) => ({ ...lane, items: [] })),
+    standing: [],
+    series: [],
+  };
+  return empty;
+}
+
+vi.mock("next/navigation", () => ({
+  usePathname: () => "/timeline",
+  useSearchParams: () => search,
+  useRouter: () => ({ push: vi.fn(), replace: vi.fn() }),
+}));
+vi.mock("@/hooks/use-auth", () => ({
+  useAuth: () => ({
+    user: { id: "u1", timezone: "Europe/Berlin", modules: {} },
+  }),
+}));
+vi.mock("@/hooks/use-record-capabilities", () => ({
+  useRecordCapabilities: () => ({ inSharedRecord: false }),
+}));
+vi.mock("../use-timeline", () => ({
+  useTimeline: (
+    zoom: TimelineZoom,
+    from: string | null,
+    to: string | null,
+    _values: readonly string[],
+    enabled = true,
+  ) => {
+    if (!enabled) {
+      return {
+        data: undefined,
+        isPending: true,
+        isError: false,
+        isPlaceholderData: false,
+        refetch: vi.fn(),
+      };
+    }
+    asked.push(zoom);
+    return {
+      data: answer(zoom, from, to),
+      isPending: false,
+      isError: false,
+      isPlaceholderData: false,
+      refetch: vi.fn(),
+    };
+  },
+  useTimelineReadiness: () => ({
+    data: readiness(),
+    isPending: false,
+    isError: false,
+  }),
+  useLifeEvents: () => ({ data: { events: [] } }),
+  useLifeEventMutations: () => ({
+    create: { isPending: false },
+    update: { isPending: false },
+    remove: { isPending: false },
+  }),
+}));
+vi.mock("../timeline-dates", async (importOriginal) => {
+  const real = await importOriginal<typeof import("../timeline-dates")>();
+  return { ...real, todayKeyIn: () => TODAY };
+});
+
+let TimelineView: typeof import("../timeline-view").TimelineView;
+
+beforeAll(async () => {
+  ({ TimelineView } = await import("../timeline-view"));
+}, 60_000);
+
+beforeEach(() => {
+  search = new URLSearchParams();
+  dataFrom = "2019-01-01";
+  young = false;
+  asked.length = 0;
+});
+
+function render(): string {
+  return renderToStaticMarkup(
+    <QueryClientProvider client={new QueryClient()}>
+      <I18nProvider initialLocale="en">
+        <TimelineView />
+      </I18nProvider>
+    </QueryClientProvider>,
+  );
+}
+
+describe("the timeline's default window", () => {
+  it("opens on everything when three months hold nothing but the record is older", () => {
+    const html = render();
+    expect(asked).toContain("quarter");
+    expect(asked).toContain("all");
+    expect(html).toMatch(/data-slot="timeline-desktop"[^>]*data-zoom="all"/);
+    expect(html).not.toContain('data-slot="timeline-window-empty"');
+  });
+
+  it("an unreadable zoom opens the same way as none", () => {
+    search = new URLSearchParams({ zoom: "decade" });
+    const html = render();
+    // It asks for the default three months first, as without a zoom.
+    expect(asked[0]).toBe("quarter");
+    expect(html).toMatch(/data-slot="timeline-desktop"[^>]*data-zoom="all"/);
+  });
+
+  it("a window named in the URL stays, and offers everything", () => {
+    search = new URLSearchParams({ zoom: "quarter" });
+    const html = render();
+    expect(asked).not.toContain("all");
+    expect(html).toContain('data-slot="timeline-window-empty"');
+    expect(html).toContain('data-slot="timeline-show-everything"');
+    expect(html).not.toContain('data-slot="timeline-desktop"');
+  });
+
+  it("a young record opens on three months clamped to its first entry", () => {
+    young = true;
+    dataFrom = "2026-09-01";
+    const html = render();
+    expect(asked).not.toContain("all");
+    expect(html).toMatch(
+      /data-slot="timeline-desktop"[^>]*data-zoom="quarter"/,
+    );
+    expect(html).toMatch(/data-window-from="2026-09-01"/);
+    expect(html).toMatch(/data-window-to="2026-10-31"/);
+  });
+
+  it("an older record with entries in the three months opens on them", () => {
+    young = true;
+    const html = render();
+    expect(asked).not.toContain("all");
+    expect(html).toMatch(/data-window-from="2026-08-01"/);
+  });
+
+  it("an empty record keeps the plain empty state", () => {
+    dataFrom = null;
+    const html = render();
+    expect(asked).not.toContain("all");
+    expect(html).not.toContain('data-slot="timeline-show-everything"');
+    expect(html).not.toContain('data-slot="timeline-desktop"');
+  });
+});
diff --git a/src/components/timeline/__tests__/timeline-url.test.ts b/src/components/timeline/__tests__/timeline-url.test.ts
index 14fb1709a..0aa30d565 100644
--- a/src/components/timeline/__tests__/timeline-url.test.ts
+++ b/src/components/timeline/__tests__/timeline-url.test.ts
@@ -3,7 +3,13 @@ import { describe, expect, it } from "vitest";
 import { TIMELINE_RANGE_MAX_DAYS } from "@/lib/day/contract";
 
 import { dayKey, dayNumber } from "../timeline-dates";
-import { clampRange, parseTimelineUrl, timelineSearch } from "../timeline-url";
+import {
+  clampRange,
+  hasDataBeforeWindow,
+  parseTimelineUrl,
+  resolveDefaultWindow,
+  timelineSearch,
+} from "../timeline-url";
 
 const TODAY = "2026-10-07";
 const parse = (search: string) =>
@@ -26,7 +32,7 @@ describe("timeline URL", () => {
     });
   });
 
-  it("falls back to all, without a word, on anything it cannot read", () => {
+  it("reads anything it cannot read as no zoom, the same default as none", () => {
     for (const search of [
       "zoom=decade",
       "zoom=range",
@@ -36,10 +42,45 @@ describe("timeline URL", () => {
       "zoom=range&from=2027-01-01&to=2027-02-01",
       "zoom=range&from=yesterday&to=today",
     ]) {
-      expect(parse(search), search).toEqual({ zoom: "all", range: null });
+      expect(parse(search), search).toEqual(parse(""));
     }
   });
 
+  it("knows when a window misses the record's older entries", () => {
+    const quarter = { from: "2026-08-01" };
+    expect(hasDataBeforeWindow("2025-02-11", quarter)).toBe(true);
+    expect(hasDataBeforeWindow("2026-08-01", quarter)).toBe(false);
+    expect(hasDataBeforeWindow("2026-09-15", quarter)).toBe(false);
+    expect(hasDataBeforeWindow(null, quarter)).toBe(false);
+    expect(hasDataBeforeWindow("2025-02-11", null)).toBe(false);
+  });
+
+  it("adapts the default window to the record", () => {
+    // The default three months up to 2026-10-07.
+    const window = { from: "2026-08-01", to: "2026-10-31" };
+    const decide = (dataFrom: string | null, windowHasData: boolean) =>
+      resolveDefaultWindow({ dataFrom, window, windowHasData, today: TODAY });
+
+    // 1. A young record starts at its first entry...
+    expect(decide("2026-09-01", true)).toEqual({
+      zoom: "quarter",
+      from: "2026-09-01",
+    });
+    // ...but spans at least four weeks up to today.
+    expect(decide("2026-10-05", true)).toEqual({
+      zoom: "quarter",
+      from: "2026-09-10",
+    });
+    // A first entry on the window's first day is the plain three months.
+    expect(decide("2026-08-01", true)).toEqual({ zoom: "quarter", from: null });
+    // 2. An older record with entries in the three months: three months.
+    expect(decide("2019-01-01", true)).toEqual({ zoom: "quarter", from: null });
+    // 3. An older record with none there: everything.
+    expect(decide("2019-01-01", false)).toEqual({ zoom: "all" });
+    // 4. No data at all: the plain empty state.
+    expect(decide(null, false)).toBeNull();
+  });
+
   it("pulls a range's end back to today and its span under the cap", () => {
     expect(parse("zoom=range&from=2026-09-01&to=2027-01-01").range).toEqual({
       from: "2026-09-01",
diff --git a/src/components/timeline/timeline-chart.tsx b/src/components/timeline/timeline-chart.tsx
index 106d1839a..69b042257 100644
--- a/src/components/timeline/timeline-chart.tsx
+++ b/src/components/timeline/timeline-chart.tsx
@@ -230,6 +230,8 @@ export function TimelineChart({
         onKeyDown={handleKey}
         data-slot="timeline-chart"
         data-width={width}
+        data-window-from={window.from}
+        data-window-to={window.to}
         className="focus-visible:ring-ring/50 relative rounded-lg outline-none focus-visible:ring-2"
       >
         <p id="timeline-chart-help" className="sr-only">
diff --git a/src/components/timeline/timeline-url.ts b/src/components/timeline/timeline-url.ts
index 7e95b26b8..149a0fd82 100644
--- a/src/components/timeline/timeline-url.ts
+++ b/src/components/timeline/timeline-url.ts
@@ -2,8 +2,9 @@
  * The timeline's zoom and chosen range in the URL (v1.42):
  * `?zoom=year`, `?zoom=range&from=2026-03-01&to=2026-04-15`. Back and a
  * bookmark both land where the person was. Anything that does not read as
- * a zoom, or a range without two valid ends, falls back to `all` without a
- * word: a stale bookmark should open the timeline, not an error.
+ * a zoom, or a range without two valid ends, reads as no zoom at all and
+ * opens on the same default without a word: a stale bookmark should open
+ * the timeline, not an error.
  */
 import {
   TIMELINE_RANGE_MAX_DAYS,
@@ -57,7 +58,6 @@ export function parseTimelineUrl(
   const zoom = (TIMELINE_ZOOMS as readonly string[]).includes(raw ?? "")
     ? (raw as TimelineZoom)
     : null;
-  if (raw !== null && zoom === null) return { zoom: "all", range: null };
   if (zoom !== "range") return { zoom, range: null };
   const from = params.get(FROM_PARAM);
   const to = params.get(TO_PARAM);
@@ -69,11 +69,67 @@ export function parseTimelineUrl(
     from > to ||
     from > today
   ) {
-    return { zoom: "all", range: null };
+    return { zoom: null, range: null };
   }
   return { zoom, range: clampRange({ from, to }, today, null) };
 }
 
+/** The zoom the page opens on when the URL names none. */
+export const DEFAULT_ZOOM: TimelineZoom = "quarter";
+
+/** The shortest default window over a young record, in days to today. */
+export const YOUNG_RECORD_MIN_DAYS = 28;
+
+/**
+ * What the page opens on when the URL names no zoom, decided from the
+ * default three months' answer (`window`, whether it holds anything, and
+ * the record's first entry):
+ *
+ *   - a record that starts inside the three months opens on three months
+ *     clamped to its first entry, at least four weeks up to today, so a
+ *     few days of data neither hide in a sliver nor stretch thin
+ *     (`from` set);
+ *   - an older record with entries in the three months opens on them
+ *     (`from` null);
+ *   - an older record with none there opens on everything;
+ *   - an empty record: null, the plain empty state.
+ */
+export type DefaultWindow =
+  { zoom: "quarter"; from: string | null } | { zoom: "all" } | null;
+
+export function resolveDefaultWindow(input: {
+  dataFrom: string | null;
+  window: { from: string; to: string };
+  windowHasData: boolean;
+  today: string;
+}): DefaultWindow {
+  const { dataFrom, window, today } = input;
+  if (dataFrom === null) return null;
+  if (dataFrom >= window.from) {
+    const minimum = dayKey(dayNumber(today) - (YOUNG_RECORD_MIN_DAYS - 1));
+    const start = dataFrom < minimum ? dataFrom : minimum;
+    return {
+      zoom: "quarter",
+      from: start > window.from ? start : null,
+    };
+  }
+  return input.windowHasData
+    ? { zoom: "quarter", from: null }
+    : { zoom: "all" };
+}
+
+/**
+ * True when a window shows nothing while the record has entries from before
+ * it: the page then offers everything instead of a dead end. `dataFrom` is
+ * the earliest date anything in the record carries.
+ */
+export function hasDataBeforeWindow(
+  dataFrom: string | null,
+  window: { from: string } | null,
+): boolean {
+  return dataFrom !== null && window !== null && dataFrom < window.from;
+}
+
 /**
  * The search string for a zoom (and, for `range`, its ends), keeping every
  * other parameter (`day`, `add`) as it is.
diff --git a/src/components/timeline/timeline-view.tsx b/src/components/timeline/timeline-view.tsx
index d375c18b4..feeb92d60 100644
--- a/src/components/timeline/timeline-view.tsx
+++ b/src/components/timeline/timeline-view.tsx
@@ -38,6 +38,7 @@ import {
   type LifeEventDTO,
   type TimelineBucket,
   type TimelineLaneKey,
+  type TimelineResponse,
   type TimelineZoom,
 } from "@/lib/day/contract";
 import type { MeasurementType } from "@/generated/prisma/client";
@@ -69,7 +70,10 @@ import { RangeFields } from "./range-fields";
 import { RangeSheet, ZoomControl } from "./range-picker";
 import {
   clampRange,
+  DEFAULT_ZOOM,
+  hasDataBeforeWindow,
   parseTimelineUrl,
+  resolveDefaultWindow,
   timelineSearch,
   type TimelineRange,
 } from "./timeline-url";
@@ -131,6 +135,15 @@ export const DEFAULT_VALUES = [
   "RESTING_HEART_RATE",
 ];
 
+/** Nothing to draw: no lane item, nothing standing, no reading. */
+function timelineIsEmpty(data: TimelineResponse): boolean {
+  return (
+    data.lanes.every((l) => l.items.length === 0) &&
+    data.standing.length === 0 &&
+    data.series.every((s) => s.points.length === 0)
+  );
+}
+
 const VALUES_KEY = "healthlog.timeline.values";
 const HIDDEN_LANES_KEY = "healthlog.timeline.hiddenLanes";
 
@@ -149,8 +162,8 @@ export function TimelineView() {
   // and a bookmark return to them. Without a `zoom` the page opens on three
   // months: around an incoming `?day=`, otherwise up to today.
   const urlState = parseTimelineUrl(searchParams, today);
-  const zoom: TimelineZoom = urlState.zoom ?? "quarter";
-  const range = zoom === "range" ? urlState.range : null;
+  const askedZoom: TimelineZoom = urlState.zoom ?? DEFAULT_ZOOM;
+  const range = askedZoom === "range" ? urlState.range : null;
   const [grouping, setGrouping] = useState<ChronicleGrouping>("month");
   // The selection follows `?day=` (Back, Forward, the day panel's previous
   // and next) and otherwise the last click or key. A pick remembers the
@@ -216,18 +229,49 @@ export function TimelineView() {
     [hiddenList],
   );
 
-  const requestWindow =
-    zoom === "all"
+  const askedWindow =
+    askedZoom === "all"
       ? null
-      : zoom === "range"
+      : askedZoom === "range"
         ? range
-        : windowFor(zoom, today, selected ?? dayParam);
-  const timeline = useTimeline(
-    zoom,
-    requestWindow?.from ?? null,
-    requestWindow?.to ?? null,
+        : windowFor(askedZoom, today, selected ?? dayParam);
+  // Opened without a zoom on three months that hold nothing, while the
+  // record has entries from before them: open on everything instead of a
+  // dead end. The URL stays as it is, so choosing a zoom still works. Once
+  // decided it holds until the URL names a zoom, so picking or opening a
+  // day on the full view does not snap it back to three months.
+  const [opensOnAll, setOpensOnAll] = useState(false);
+  if (opensOnAll && urlState.zoom !== null) setOpensOnAll(false);
+  const asked = useTimeline(
+    askedZoom,
+    askedWindow?.from ?? null,
+    askedWindow?.to ?? null,
     values,
+    !opensOnAll,
   );
+  // Without a zoom the window adapts to the record (`resolveDefaultWindow`):
+  // decided from the three months' answer, before anything is drawn, so the
+  // page never draws one window and then jumps to another.
+  const defaultWindow =
+    urlState.zoom === null &&
+    !opensOnAll &&
+    askedWindow &&
+    asked.data &&
+    !asked.isPlaceholderData
+      ? resolveDefaultWindow({
+          dataFrom: asked.data.range.dataFrom,
+          window: askedWindow,
+          windowHasData: !timelineIsEmpty(asked.data),
+          today,
+        })
+      : null;
+  if (defaultWindow?.zoom === "all") setOpensOnAll(true);
+  const youngFrom =
+    defaultWindow?.zoom === "quarter" ? defaultWindow.from : null;
+  const everything = useTimeline("all", null, null, values, opensOnAll);
+  const zoom: TimelineZoom = opensOnAll ? "all" : askedZoom;
+  const requestWindow = opensOnAll ? null : askedWindow;
+  const timeline = opensOnAll ? everything : asked;
   const readiness = useTimelineReadiness();
   const lifeEvents = useLifeEvents(canAddLifeEvent);
 
@@ -300,7 +344,7 @@ export function TimelineView() {
         ? t("timeline.readiness.lanes.mood")
         : t(MEASUREMENT_TYPE_LABEL_KEYS[key as MeasurementType] ?? key);
 
-  const window_ = data
+  const shownWindow = data
     ? windowFor(
         zoom,
         today,
@@ -308,6 +352,11 @@ export function TimelineView() {
         zoom === "all" || zoom === "range" ? data.range : null,
       )
     : null;
+  // A young record's three months start at its first entry.
+  const window_ =
+    shownWindow && youngFrom && youngFrom > shownWindow.from
+      ? { from: youngFrom, to: shownWindow.to }
+      : shownWindow;
   // A new range starts as the chosen one, or as what is on screen, up to
   // today.
   const rangeDraft = clampRange(
@@ -329,11 +378,12 @@ export function TimelineView() {
     .filter((l) => l.items.length > 0)
     .map((l) => l.key)
     .sort((a, b) => LANE_ORDER.indexOf(a) - LANE_ORDER.indexOf(b));
-  const isEmpty =
+  const isEmpty = !!data && timelineIsEmpty(data);
+  // An empty window with entries before it offers everything.
+  const showEverything =
     !!data &&
-    presentLanes.length === 0 &&
-    data.standing.length === 0 &&
-    data.series.every((s) => s.points.length === 0);
+    zoom !== "all" &&
+    hasDataBeforeWindow(data.range.dataFrom, requestWindow);
 
   const zoomOptions = TIMELINE_ZOOMS.map((z) => ({
     value: z,
@@ -436,6 +486,24 @@ export function TimelineView() {
             }
           />
         </div>
+      ) : showEverything && (isEmpty || !window_) ? (
+        // A window with nothing in it while the record has older entries:
+        // one step to all of them.
+        <EmptyState
+          data-slot="timeline-window-empty"
+          title={t("timeline.selection.empty")}
+          action={
+            <Button
+              variant="outline"
+              size="sm"
+              className="min-h-11 sm:min-h-9"
+              onClick={() => setZoom("all")}
+              data-slot="timeline-show-everything"
+            >
+              {t("timeline.range.clear")}
+            </Button>
+          }
+        />
       ) : isEmpty || !data || !window_ ? (
         <EmptyState
           title={t("timeline.empty.title")}
diff --git a/src/components/timeline/use-timeline.ts b/src/components/timeline/use-timeline.ts
index 8ad86832d..e3a49e242 100644
--- a/src/components/timeline/use-timeline.ts
+++ b/src/components/timeline/use-timeline.ts
@@ -41,9 +41,11 @@ export function useTimeline(
   from: string | null,
   to: string | null,
   values: readonly string[],
+  enabled = true,
 ) {
   return useQuery({
     queryKey: queryKeys.timeline(zoom, from, to, values.join(",")),
+    enabled,
     queryFn: () =>
       apiGet<TimelineResponse>(timelinePath(zoom, from, to, values)),
     // Moving between zoom levels keeps the last answer on screen until the
diff --git a/src/lib/dashboard/meds-today.ts b/src/lib/dashboard/meds-today.ts
index 017008912..24382dfe5 100644
--- a/src/lib/dashboard/meds-today.ts
+++ b/src/lib/dashboard/meds-today.ts
@@ -36,6 +36,7 @@
  */
 import type { PrismaClient } from "@/generated/prisma/client";
 import { projectTodayIntakesAndRecompute } from "@/lib/medications/scheduling/project-today-intakes";
+import { loadAutoTakeRollingAnchors } from "@/lib/medications/auto-take";
 import {
   computeDisplayDue,
   OVERDUE_LOOKBACK_MS,
@@ -203,6 +204,16 @@ export async function buildMedsTodayBlock(
   // The live era start per medication (see `live-era.ts`).
   const eraStartByMedId = liveEraStartsByMedication(eraFloors);
 
+  // v1.42.2 — under auto-take a rolling cadence stands where the job will
+  // record next (see `auto-take.ts`).
+  const engineLastIntakeAt = await loadAutoTakeRollingAnchors(prisma, {
+    userId,
+    medicationIds: medications.filter((m) => m.autoMarkTaken).map((m) => m.id),
+    now,
+    userTz,
+    lastIntakeAt: (id) => lastTakenAtByMedId.get(id) ?? null,
+  });
+
   const dueCandidates: MedsTodayDueCandidate[] = [];
   for (const m of medications) {
     const display = computeDisplayDue({
@@ -216,7 +227,7 @@ export async function buildMedsTodayBlock(
       schedules: m.schedules,
       now,
       userTz,
-      lastIntakeAt: lastTakenAtByMedId.get(m.id) ?? null,
+      lastIntakeAt: engineLastIntakeAt(m.id),
       resolvedSlots: resolvedSlotsByMedId.get(m.id) ?? [],
       eraStart: eraStartByMedId.get(m.id) ?? null,
     });
diff --git a/src/lib/export/restore-backup.ts b/src/lib/export/restore-backup.ts
index 6ce6e2520..b2659d8ea 100644
--- a/src/lib/export/restore-backup.ts
+++ b/src/lib/export/restore-backup.ts
@@ -1232,14 +1232,21 @@ export async function restoreBackup(
               oneShot: m.oneShot ?? false,
               asNeeded: m.asNeeded ?? false,
               trackIntake: m.trackIntake ?? true,
-              // v1.42.2 — an option that is on always carries its floor; a
-              // file that has the flag without one starts it at the restore,
-              // so the auto-take pass never fills history it did not own.
+              // v1.42.2 — an option that is on always carries its floor, and
+              // a restored floor is never before the restore: a portable file
+              // carries no removed doses, so a dose the person deleted in the
+              // days before the export would otherwise be filled again as
+              // taken by the next auto-take pass.
               autoMarkTaken: m.autoMarkTaken ?? false,
               autoMarkTakenSince: m.autoMarkTaken
-                ? m.autoMarkTakenSince
-                  ? new Date(m.autoMarkTakenSince)
-                  : new Date()
+                ? new Date(
+                    Math.max(
+                      m.autoMarkTakenSince
+                        ? Date.parse(m.autoMarkTakenSince)
+                        : 0,
+                      restoreStartedAt.getTime(),
+                    ),
+                  )
                 : null,
               deliveryForm: m.deliveryForm ?? "ORAL",
               trackInjectionSites: m.trackInjectionSites ?? false,
diff --git a/src/lib/jobs/__tests__/intake-auto-take.test.ts b/src/lib/jobs/__tests__/intake-auto-take.test.ts
index 82198030f..dbcb3e0a9 100644
--- a/src/lib/jobs/__tests__/intake-auto-take.test.ts
+++ b/src/lib/jobs/__tests__/intake-auto-take.test.ts
@@ -49,6 +49,8 @@ import {
   runIntakeAutoTakePass,
 } from "../intake-auto-take";
 import { autoTakeOwnedFrom } from "../intake-auto-skip";
+import { autoTakeRollingAnchor } from "@/lib/medications/auto-take";
+import { computeDisplayDue } from "@/lib/medications/scheduling/next-due";
 
 const TZ = "Europe/Berlin";
 
@@ -483,6 +485,7 @@ interface FakeRow {
   deletedAt: Date | null;
   source: string;
   syncVersion: number;
+  attributionSource?: "AUTO" | "USER_PIN";
 }
 
 function fakeClient(meds: ReturnType<typeof medication>[], rows: FakeRow[]) {
@@ -710,3 +713,319 @@ describe("runIntakeAutoTakePass — over a fake client", () => {
     ).toEqual(["2026-06-03T07:00:00.000Z", "2026-06-05T07:00:00.000Z"]);
   });
 });
+
+// ── a rolling cadence under auto-take never stalls ────────────────────
+
+describe("runIntakeAutoTakePass — rolling cadence keeps moving", () => {
+  const weekly = () =>
+    schedule({ rollingIntervalDays: 7, timesOfDay: ["09:00"] });
+  const autoRecordedSlots = (rows: FakeRow[]) =>
+    rows
+      .filter((r) => r.autoRecorded && r.deletedAt === null)
+      .map((r) => r.scheduledFor.toISOString())
+      .sort();
+
+  it("a first dose before the floor is passed over, the next one recorded", async () => {
+    // Created at 12:00 CEST, after that day's 09:00 slot, no start date:
+    // the first rolling dose lies before the floor.
+    const med = medication({
+      createdAt: new Date("2026-06-10T10:00:00Z"),
+      autoMarkTakenSince: new Date("2026-06-10T10:00:00Z"),
+      schedules: [weekly()],
+    });
+    const rows: FakeRow[] = [];
+    const client = fakeClient([med], rows);
+
+    const early = await runIntakeAutoTakePass(client, {
+      nowMs: Date.parse("2026-06-12T08:00:00Z"),
+    });
+    expect(early.recordedCount).toBe(0);
+
+    const due = await runIntakeAutoTakePass(client, {
+      nowMs: Date.parse("2026-06-17T07:20:00Z"),
+    });
+    expect(due.recordedCount).toBe(1);
+    expect(autoRecordedSlots(rows)).toEqual(["2026-06-17T07:00:00.000Z"]);
+  });
+
+  it("switched on while the weekly dose is overdue: the overdue dose stays, the cadence moves on", async () => {
+    const med = medication({
+      autoMarkTakenSince: new Date("2026-06-10T12:00:00Z"),
+      schedules: [weekly()],
+    });
+    const rows: FakeRow[] = [
+      row({
+        id: "t0",
+        scheduledFor: new Date("2026-06-01T07:00:00Z"),
+        takenAt: new Date("2026-06-01T07:00:00Z"),
+        source: "WEB",
+      }),
+    ];
+    const client = fakeClient([med], rows);
+    const result = await runIntakeAutoTakePass(client, {
+      nowMs: Date.parse("2026-06-15T08:00:00Z"),
+    });
+    // 06-08 lies before the switch-on and is never backfilled.
+    expect(result.recordedCount).toBe(1);
+    expect(autoRecordedSlots(rows)).toEqual(["2026-06-15T07:00:00.000Z"]);
+  });
+
+  it("a skipped rolling auto dose counts as handled: the next one is recorded", async () => {
+    const med = medication({
+      autoMarkTakenSince: new Date("2026-06-01T00:00:00Z"),
+      schedules: [weekly()],
+    });
+    const rows: FakeRow[] = [
+      row({
+        id: "t0",
+        scheduledFor: new Date("2026-06-01T07:00:00Z"),
+        takenAt: new Date("2026-06-01T07:00:00Z"),
+        source: "WEB",
+      }),
+      row({
+        id: "s1",
+        scheduledFor: new Date("2026-06-08T07:00:00Z"),
+        skipped: true,
+        source: "WEB",
+      }),
+    ];
+    const client = fakeClient([med], rows);
+    const result = await runIntakeAutoTakePass(client, {
+      nowMs: Date.parse("2026-06-15T08:00:00Z"),
+    });
+    expect(result.recordedCount).toBe(1);
+    expect(autoRecordedSlots(rows)).toEqual(["2026-06-15T07:00:00.000Z"]);
+    expect(rows.find((r) => r.id === "s1")).toMatchObject({
+      skipped: true,
+      takenAt: null,
+    });
+  });
+
+  it("a removed rolling auto dose stays removed and the next one is recorded", async () => {
+    const med = medication({
+      autoMarkTakenSince: new Date("2026-06-01T00:00:00Z"),
+      schedules: [weekly()],
+    });
+    const rows: FakeRow[] = [
+      row({
+        id: "t0",
+        scheduledFor: new Date("2026-06-01T07:00:00Z"),
+        takenAt: new Date("2026-06-01T07:00:00Z"),
+        source: "WEB",
+      }),
+      row({
+        id: "gone",
+        scheduledFor: new Date("2026-06-08T07:00:00Z"),
+        takenAt: new Date("2026-06-08T07:00:00Z"),
+        autoRecorded: true,
+        deletedAt: new Date("2026-06-08T09:00:00Z"),
+      }),
+    ];
+    const client = fakeClient([med], rows);
+    const result = await runIntakeAutoTakePass(client, {
+      nowMs: Date.parse("2026-06-15T08:00:00Z"),
+    });
+    expect(result.recordedCount).toBe(1);
+    expect(autoRecordedSlots(rows)).toEqual(["2026-06-15T07:00:00.000Z"]);
+    expect(
+      rows.filter(
+        (r) => r.scheduledFor.toISOString() === "2026-06-08T07:00:00.000Z",
+      ),
+    ).toHaveLength(1);
+  });
+
+  it("a worker down for more than a week catches up on the rhythm, not the stale slot", async () => {
+    const med = medication({
+      autoMarkTakenSince: new Date("2026-05-01T00:00:00Z"),
+      schedules: [weekly()],
+    });
+    const rows: FakeRow[] = [
+      row({
+        id: "t0",
+        scheduledFor: new Date("2026-05-25T07:00:00Z"),
+        takenAt: new Date("2026-05-25T07:00:00Z"),
+        source: "WEB",
+      }),
+    ];
+    const client = fakeClient([med], rows);
+    // Ten days after the 06-01 dose fell due: it is outside the catch-up
+    // window, 06-08 is inside it.
+    const result = await runIntakeAutoTakePass(client, {
+      nowMs: Date.parse("2026-06-11T08:00:00Z"),
+    });
+    expect(result.recordedCount).toBe(1);
+    expect(autoRecordedSlots(rows)).toEqual(["2026-06-08T07:00:00.000Z"]);
+  });
+
+  it("the card's next due is the slot the job records", async () => {
+    const med = medication({
+      createdAt: new Date("2026-06-10T10:00:00Z"),
+      autoMarkTakenSince: new Date("2026-06-10T10:00:00Z"),
+      schedules: [weekly()],
+    });
+    const now = new Date("2026-06-12T08:00:00Z");
+    const anchor = autoTakeRollingAnchor({
+      medication: med,
+      userTz: TZ,
+      floor: autoTakeFloor({
+        autoMarkTakenSince: med.autoMarkTakenSince!,
+        createdAt: med.createdAt,
+        now,
+      }),
+      now,
+      lastIntakeAt: null,
+      rows: [],
+    });
+    const display = computeDisplayDue({
+      medication: med,
+      schedules: med.schedules,
+      now,
+      userTz: TZ,
+      lastIntakeAt: anchor,
+      resolvedSlots: [],
+    });
+    expect(display?.at.toISOString()).toBe("2026-06-17T07:00:00.000Z");
+
+    const rows: FakeRow[] = [];
+    await runIntakeAutoTakePass(fakeClient([med], rows), {
+      nowMs: Date.parse("2026-06-17T07:20:00Z"),
+    });
+    expect(autoRecordedSlots(rows)).toEqual([display!.at.toISOString()]);
+  });
+});
+
+// ── a take bound to another slot never claims this one ───────────────
+
+describe("runIntakeAutoTakePass — nearby takes of another slot", () => {
+  const twiceDaily = () =>
+    medication({
+      autoMarkTakenSince: new Date("2026-06-10T00:00:00Z"),
+      schedules: [schedule({ timesOfDay: ["08:00", "20:00"] })],
+    });
+  // 2026-06-10 (CEST): 08:00 = 06:00Z, 20:00 = 18:00Z; 19:00 = 17:00Z.
+  const MORNING = new Date("2026-06-10T06:00:00Z");
+  const EVENING = "2026-06-10T18:00:00.000Z";
+  const autoSlots = (rows: FakeRow[]) =>
+    rows.filter((r) => r.autoRecorded).map((r) => r.scheduledFor.toISOString());
+
+  it("the morning dose pinned and taken at 19:00 leaves the evening dose due", async () => {
+    const rows: FakeRow[] = [
+      row({
+        id: "pin",
+        scheduledFor: MORNING,
+        takenAt: new Date("2026-06-10T17:00:00Z"),
+        attributionSource: "USER_PIN",
+        source: "WEB",
+      }),
+    ];
+    await runIntakeAutoTakePass(fakeClient([twiceDaily()], rows), {
+      nowMs: Date.parse("2026-06-10T18:20:00Z"),
+    });
+    expect(autoSlots(rows)).toEqual([EVENING]);
+  });
+
+  it("the same without a pin: a take on the morning slot is the morning's", async () => {
+    const rows: FakeRow[] = [
+      row({
+        id: "late",
+        scheduledFor: MORNING,
+        takenAt: new Date("2026-06-10T17:00:00Z"),
+        source: "WEB",
+      }),
+    ];
+    await runIntakeAutoTakePass(fakeClient([twiceDaily()], rows), {
+      nowMs: Date.parse("2026-06-10T18:20:00Z"),
+    });
+    expect(autoSlots(rows)).toEqual([EVENING]);
+  });
+
+  it("an ad-hoc take at 19:00 still claims the evening dose", async () => {
+    const at19 = new Date("2026-06-10T17:00:00Z");
+    const rows: FakeRow[] = [
+      // The morning dose, taken on time.
+      row({
+        id: "am",
+        scheduledFor: MORNING,
+        takenAt: MORNING,
+        source: "WEB",
+      }),
+      row({ id: "adhoc", scheduledFor: at19, takenAt: at19, source: "WEB" }),
+    ];
+    await runIntakeAutoTakePass(fakeClient([twiceDaily()], rows), {
+      nowMs: Date.parse("2026-06-10T18:20:00Z"),
+    });
+    expect(autoSlots(rows)).toEqual([]);
+  });
+
+  it("decideSlot: a pinned row elsewhere is not nearby, an ad-hoc one is", () => {
+    const band = {
+      earlyStart: new Date("2026-06-10T15:00:00Z"),
+      overdueEnd: new Date("2026-06-10T21:00:00Z"),
+    };
+    const evening = new Date(EVENING);
+    const taken = new Date("2026-06-10T17:00:00Z");
+    const base = {
+      takenAt: taken,
+      skipped: false,
+      autoMissed: false,
+      deletedAt: null,
+    };
+    expect(
+      decideSlot(
+        evening,
+        [
+          {
+            ...base,
+            id: "p",
+            scheduledFor: new Date("2026-06-09T12:00:00Z"),
+            attributionSource: "USER_PIN",
+          },
+        ],
+        band,
+      ),
+    ).toEqual({ kind: "create" });
+    expect(
+      decideSlot(evening, [{ ...base, id: "a", scheduledFor: taken }], band),
+    ).toEqual({ kind: "leave", reason: "taken_nearby" });
+  });
+});
+
+// ── one bad row never stops the pass ──────────────────────────────────
+
+describe("runIntakeAutoTakePass — per-medication isolation", () => {
+  it("a medication whose follow-up throws is skipped, the next one still runs", async () => {
+    const broken = medication({
+      id: "m-broken",
+      autoMarkTakenSince: new Date("2026-06-10T00:00:00Z"),
+    });
+    const fine = medication({
+      id: "m-fine",
+      autoMarkTakenSince: new Date("2026-06-10T00:00:00Z"),
+    });
+    const rows: FakeRow[] = [];
+    vi.mocked(consumeForIntake).mockImplementationOnce(async () => {
+      throw new Error("inventory unavailable");
+    });
+    const result = await runIntakeAutoTakePass(
+      fakeClient([broken, fine], rows),
+      { nowMs: Date.parse("2026-06-10T17:20:00Z") },
+    );
+    expect(result.failedCount).toBe(1);
+    expect(
+      rows.filter((r) => r.medicationId === "m-fine" && r.autoRecorded),
+    ).toHaveLength(1);
+  });
+
+  it("a stored zone the runtime refuses falls back instead of throwing", async () => {
+    const med = {
+      ...medication({ autoMarkTakenSince: new Date("2026-06-10T00:00:00Z") }),
+      user: { timezone: "Mars/Olympus_Mons" },
+    };
+    const rows: FakeRow[] = [];
+    const result = await runIntakeAutoTakePass(fakeClient([med], rows), {
+      nowMs: Date.parse("2026-06-10T20:00:00Z"),
+    });
+    expect(result.failedCount).toBe(0);
+    expect(result.recordedCount).toBe(1);
+  });
+});
diff --git a/src/lib/jobs/intake-auto-take.ts b/src/lib/jobs/intake-auto-take.ts
index 1f08876e9..6915edc2c 100644
--- a/src/lib/jobs/intake-auto-take.ts
+++ b/src/lib/jobs/intake-auto-take.ts
@@ -17,6 +17,14 @@
  *   3. Records each remaining slot as taken AT its scheduled instant, marked
  *      `autoRecorded`, unless the person already acted on it.
  *
+ * A rolling cadence ("every N days from the last dose") yields only its next
+ * slot, so a slot this pass never records would hold it still for good. Under
+ * auto-take the cadence therefore steps forward by N, keeping its rhythm,
+ * past every slot before the floor, inside a pause era, or already handled
+ * by the person (skipped, auto-missed, removed); see `autoTakeRollingAnchor`
+ * in `src/lib/medications/auto-take.ts`, which the medication card's next
+ * due applies too, so the card shows the slot this pass will record.
+ *
  * The floor is the latest of `autoMarkTakenSince` (the option is never
  * applied to history before it was switched on), the medication's creation,
  * and a 7-day catch-up window (a worker that was down for a weekend still
@@ -48,6 +56,16 @@ import type { PrismaClient } from "@/generated/prisma/client";
 
 import { invalidateUserMedications } from "@/lib/cache/invalidate";
 import { TRACKED_INTAKE_WHERE } from "@/lib/medications/intake-tracking";
+import {
+  autoTakeEligibleWhere,
+  autoTakeFloor,
+  autoTakeRollingAnchor,
+  autoTakeRowWindow,
+  decideSlot,
+  isInPauseEra,
+  type SlotDecision,
+  type SlotRow,
+} from "@/lib/medications/auto-take";
 import { consumeForIntake } from "@/lib/medications/inventory/consumption";
 import { reconcileOneShotState } from "@/lib/medications/lifecycle";
 import {
@@ -69,7 +87,16 @@ import {
   dayKeyForScheduledFor,
   recomputeMedicationComplianceForEvent,
 } from "@/lib/rollups/medication-compliance-rollups";
-import { DEFAULT_TIMEZONE } from "@/lib/tz/format";
+import { DEFAULT_TIMEZONE, validTimezoneOr } from "@/lib/tz/format";
+import { getEvent } from "@/lib/logging/context";
+
+export {
+  autoTakeFloor,
+  decideSlot,
+  INTAKE_AUTO_TAKE_LOOKBACK_MS,
+  isInPauseEra,
+  type SlotDecision,
+} from "@/lib/medications/auto-take";
 
 export const INTAKE_AUTO_TAKE_QUEUE = "intake-auto-take";
 
@@ -83,9 +110,6 @@ const MINUTE_MS = 60 * 1000;
 const HOUR_MS = 60 * MINUTE_MS;
 const DAY_MS = 24 * HOUR_MS;
 
-/** How far back one pass catches up on slots it has not filled yet. */
-export const INTAKE_AUTO_TAKE_LOOKBACK_MS = 7 * DAY_MS;
-
 /**
  * A rolling cadence produces its next slot only once the previous one is
  * taken, so a pass that catches up re-expands after each recorded rolling
@@ -104,6 +128,8 @@ export interface IntakeAutoTakeResult {
   recordedCount: number;
   /** Of those, pending placeholders converted in place. */
   convertedCount: number;
+  /** Medications whose share of the pass failed and was skipped. */
+  failedCount: number;
   /** Users whose caches were dropped because a dose was recorded. */
   userIds: string[];
 }
@@ -131,95 +157,6 @@ const SCHEDULE_SELECT = {
   doseWindows: true,
 } as const;
 
-/** One slot row as the occupancy check reads it. */
-interface SlotRow {
-  id: string;
-  scheduledFor: Date;
-  takenAt: Date | null;
-  skipped: boolean;
-  autoMissed: boolean;
-  deletedAt: Date | null;
-}
-
-export type SlotDecision =
-  | { kind: "create" }
-  | { kind: "convert"; rowId: string }
-  | {
-      kind: "leave";
-      reason: "actioned" | "removed" | "taken_nearby";
-    };
-
-/**
- * Decide what the pass does with one slot, given every row of the
- * medication around it (live and tombstoned). Pure, so the precedence rules
- * are tested without a database.
- *
- * `band` is the slot's attribution band when the cadence has one (a take
- * anywhere inside it belongs to this slot); `null` for a rolling slot, whose
- * next occurrence is by definition later than every taken dose.
- */
-export function decideSlot(
-  slotAt: Date,
-  rows: readonly SlotRow[],
-  band: Pick<SlotBand, "earlyStart" | "overdueEnd"> | null,
-): SlotDecision {
-  const t = slotAt.getTime();
-  const onSlot = rows.filter((r) => r.scheduledFor.getTime() === t);
-  const liveOnSlot = onSlot.filter((r) => r.deletedAt === null);
-
-  if (liveOnSlot.some((r) => r.takenAt !== null || r.skipped || r.autoMissed)) {
-    return { kind: "leave", reason: "actioned" };
-  }
-  if (liveOnSlot.length === 0 && onSlot.length > 0) {
-    return { kind: "leave", reason: "removed" };
-  }
-  if (band) {
-    const from = band.earlyStart.getTime();
-    const to = band.overdueEnd.getTime();
-    const takenNearby = rows.some(
-      (r) =>
-        r.deletedAt === null &&
-        !r.skipped &&
-        r.takenAt !== null &&
-        r.takenAt.getTime() >= from &&
-        r.takenAt.getTime() <= to,
-    );
-    if (takenNearby) return { kind: "leave", reason: "taken_nearby" };
-  }
-  const pending = [...liveOnSlot].sort(
-    (a, b) => a.id.localeCompare(b.id), // deterministic pick on duplicates
-  )[0];
-  return pending ? { kind: "convert", rowId: pending.id } : { kind: "create" };
-}
-
-/** True when `at` falls inside a `[pausedAt, resumedAt ?? now)` pause era. */
-export function isInPauseEra(
-  at: Date,
-  eras: readonly { pausedAt: Date; resumedAt: Date | null }[],
-  now: Date,
-): boolean {
-  const t = at.getTime();
-  return eras.some(
-    (era) =>
-      t >= era.pausedAt.getTime() && t < (era.resumedAt ?? now).getTime(),
-  );
-}
-
-/** The slot floor for one medication: see the module comment. */
-export function autoTakeFloor(input: {
-  autoMarkTakenSince: Date;
-  createdAt: Date;
-  now: Date;
-}): Date {
-  return new Date(
-    Math.max(
-      input.autoMarkTakenSince.getTime(),
-      input.createdAt.getTime(),
-      input.now.getTime() - INTAKE_AUTO_TAKE_LOOKBACK_MS,
-    ),
-  );
-}
-
 interface AutoTakeMedication {
   id: string;
   userId: string;
@@ -327,15 +264,9 @@ export async function runIntakeAutoTakePass(
   const now = new Date(options.nowMs ?? Date.now());
 
   const medications = (await prisma.medication.findMany({
-    where: {
-      autoMarkTaken: true,
-      autoMarkTakenSince: { not: null, lte: now },
-      active: true,
-      pausedAt: null,
-      asNeeded: false,
-      // A record-only medication expects no dose, so none is recorded.
-      ...TRACKED_INTAKE_WHERE,
-    },
+    // Opted in, active, not paused, not as-needed, intake tracked (a
+    // record-only medication expects no dose, so none is recorded).
+    where: { ...autoTakeEligibleWhere(now), ...TRACKED_INTAKE_WHERE },
     select: {
       id: true,
       userId: true,
@@ -362,56 +293,27 @@ export async function runIntakeAutoTakePass(
 
   let recordedCount = 0;
   let convertedCount = 0;
+  let failedCount = 0;
   const touchedUsers = new Set<string>();
 
   for (const medication of medications) {
     if (!medication.autoMarkTakenSince || medication.schedules.length === 0) {
       continue;
     }
-    const userTz = medication.user.timezone || DEFAULT_TIMEZONE;
-    const floor = autoTakeFloor({
-      autoMarkTakenSince: medication.autoMarkTakenSince,
-      createdAt: medication.createdAt,
-      now,
-    });
-    const rolling = medication.schedules.some(
-      (s) => s.rollingIntervalDays !== null,
-    );
-
-    const outcome = await autoTakeMedication(prisma, {
-      medication,
-      userTz,
-      floor,
-      now,
-      rolling,
-    });
-    recordedCount += outcome.recorded.length;
-    convertedCount += outcome.converted;
-    if (outcome.recorded.length === 0) continue;
-
-    touchedUsers.add(medication.userId);
-    // The same follow-ups the intake routes run after a manual take.
-    const days = new Set<string>();
-    for (const slot of outcome.recorded) {
-      await consumeForIntake({
-        client: prisma,
-        userId: medication.userId,
-        medicationId: medication.id,
-        eventId: slot.eventId,
-        intakeAt: slot.at,
-      });
-      const dayKey = dayKeyForScheduledFor(slot.at, userTz);
-      if (days.has(dayKey)) continue;
-      days.add(dayKey);
-      await recomputeMedicationComplianceForEvent({
-        userId: medication.userId,
-        medicationId: medication.id,
-        scheduledFor: slot.at,
-        tz: userTz,
-      });
-    }
-    if (medication.oneShot) {
-      await reconcileOneShotState(prisma, medication.id, medication.userId);
+    // One bad row never stops the pass for everyone else: it is named in a
+    // warning and the next medication runs.
+    try {
+      const outcome = await autoTakeOne(prisma, medication, now);
+      recordedCount += outcome.recorded;
+      convertedCount += outcome.converted;
+      if (outcome.recorded > 0) touchedUsers.add(medication.userId);
+    } catch (err) {
+      failedCount += 1;
+      getEvent()?.addWarning(
+        `intake-auto-take failed for medication ${medication.id}: ${
+          err instanceof Error ? err.message : String(err)
+        }`,
+      );
     }
   }
 
@@ -426,10 +328,66 @@ export async function runIntakeAutoTakePass(
     medicationCount: medications.length,
     recordedCount,
     convertedCount,
+    failedCount,
     userIds: [...touchedUsers],
   };
 }
 
+/** One medication's share of a pass: record its due slots, then follow up. */
+async function autoTakeOne(
+  prisma: AutoTakeClient,
+  medication: AutoTakeMedication,
+  now: Date,
+): Promise<{ recorded: number; converted: number }> {
+  // A stored zone the runtime refuses (or a bare offset) falls back to the
+  // default, as in every other job, rather than throwing mid-pass.
+  const userTz = validTimezoneOr(medication.user.timezone, DEFAULT_TIMEZONE);
+  const floor = autoTakeFloor({
+    autoMarkTakenSince: medication.autoMarkTakenSince!,
+    createdAt: medication.createdAt,
+    now,
+  });
+  const rolling = medication.schedules.some(
+    (s) => s.rollingIntervalDays !== null,
+  );
+
+  const outcome = await autoTakeMedication(prisma, {
+    medication,
+    userTz,
+    floor,
+    now,
+    rolling,
+  });
+  if (outcome.recorded.length === 0) {
+    return { recorded: 0, converted: outcome.converted };
+  }
+
+  // The same follow-ups the intake routes run after a manual take.
+  const days = new Set<string>();
+  for (const slot of outcome.recorded) {
+    await consumeForIntake({
+      client: prisma,
+      userId: medication.userId,
+      medicationId: medication.id,
+      eventId: slot.eventId,
+      intakeAt: slot.at,
+    });
+    const dayKey = dayKeyForScheduledFor(slot.at, userTz);
+    if (days.has(dayKey)) continue;
+    days.add(dayKey);
+    await recomputeMedicationComplianceForEvent({
+      userId: medication.userId,
+      medicationId: medication.id,
+      scheduledFor: slot.at,
+      tz: userTz,
+    });
+  }
+  if (medication.oneShot) {
+    await reconcileOneShotState(prisma, medication.id, medication.userId);
+  }
+  return { recorded: outcome.recorded.length, converted: outcome.converted };
+}
+
 async function autoTakeMedication(
   prisma: AutoTakeClient,
   input: {
@@ -451,20 +409,7 @@ async function autoTakeMedication(
     where: {
       userId: medication.userId,
       medicationId: medication.id,
-      OR: [
-        {
-          scheduledFor: {
-            gte: new Date(floor.getTime() - DAY_MS),
-            lte: new Date(now.getTime() + DAY_MS),
-          },
-        },
-        {
-          takenAt: {
-            gte: new Date(floor.getTime() - DAY_MS),
-            lte: new Date(now.getTime() + DAY_MS),
-          },
-        },
-      ],
+      ...autoTakeRowWindow(floor, now),
     },
     select: {
       id: true,
@@ -473,6 +418,7 @@ async function autoTakeMedication(
       skipped: true,
       autoMissed: true,
       deletedAt: true,
+      attributionSource: true,
     },
   });
 
@@ -492,12 +438,25 @@ async function autoTakeMedication(
   }
 
   for (let round = 0; round < MAX_EXPANSION_ROUNDS; round++) {
+    // A rolling cadence steps past the slots this pass will never record
+    // (before the floor, paused, skipped, removed), so it cannot stall on
+    // one; the card's next due reads the same anchor.
+    const anchor = rolling
+      ? autoTakeRollingAnchor({
+          medication,
+          userTz,
+          floor,
+          now,
+          lastIntakeAt,
+          rows,
+        })
+      : lastIntakeAt;
     const slots = dueAutoTakeSlots({
       medication,
       userTz,
       floor,
       now,
-      lastIntakeAt,
+      lastIntakeAt: anchor,
     }).filter((slot) => !handled.has(slot.at.getTime()));
     if (slots.length === 0) break;
     const bands = bandsByAnchor({
@@ -505,9 +464,10 @@ async function autoTakeMedication(
       userTz,
       floor,
       now,
-      lastIntakeAt,
+      lastIntakeAt: anchor,
     });
 
+    const expectedSlots = new Set(bands.keys());
     let recordedRolling = false;
     for (const slot of slots) {
       handled.add(slot.at.getTime());
@@ -518,6 +478,9 @@ async function autoTakeMedication(
         slot.at,
         rows,
         isRollingSlot ? null : (bands.get(slot.at.getTime()) ?? null),
+        // Every expected slot around the window: a take sitting on one of
+        // them is that slot's dose, never a nearby take of this one.
+        expectedSlots,
       );
       const written = await applyDecision(prisma, {
         decision,
diff --git a/src/lib/jobs/reminder/medication-maintenance.ts b/src/lib/jobs/reminder/medication-maintenance.ts
index f75b5d042..0d70064ac 100644
--- a/src/lib/jobs/reminder/medication-maintenance.ts
+++ b/src/lib/jobs/reminder/medication-maintenance.ts
@@ -99,6 +99,7 @@ export async function handleIntakeAutoTake(
       evt.addMeta("intake_auto_take_medications", result.medicationCount);
       evt.addMeta("intake_auto_take_recorded", result.recordedCount);
       evt.addMeta("intake_auto_take_converted", result.convertedCount);
+      evt.addMeta("intake_auto_take_failed", result.failedCount);
       return jobDone({
         intake_auto_take_medications: result.medicationCount,
         intake_auto_take_recorded: result.recordedCount,
diff --git a/src/lib/jobs/reminder/medication-reminder-check.ts b/src/lib/jobs/reminder/medication-reminder-check.ts
index 5ae9bbba7..a23ea7a46 100644
--- a/src/lib/jobs/reminder/medication-reminder-check.ts
+++ b/src/lib/jobs/reminder/medication-reminder-check.ts
@@ -663,7 +663,7 @@ export async function handleReminderCheck(
               }),
             });
 
-            if (sendsMedicationReminders(med)) {
+            if (sendsMedicationReminders(med, { now, timeZone: userTz })) {
               const claimed = await claimNotificationEvent(prisma, {
                 recordUserId: med.user.id,
                 eventType: "MEDICATION_REMINDER",
@@ -727,7 +727,7 @@ export async function handleReminderCheck(
             // banner, every other channel the user configured still delivers
             // — so the gate lives in the dispatcher's APNs branch, which is
             // the only place that knows whether an APNs send was on the table.
-            if (sendsMedicationReminders(med)) {
+            if (sendsMedicationReminders(med, { now, timeZone: userTz })) {
               const recipientLocale = await resolveJobLocale(med.user.locale);
               const { title, message } = getPhaseMessage(
                 currentPhase,
diff --git a/src/lib/mcp/tools.ts b/src/lib/mcp/tools.ts
index 771b10be5..d00699618 100644
--- a/src/lib/mcp/tools.ts
+++ b/src/lib/mcp/tools.ts
@@ -65,6 +65,7 @@ import { NUTRIENT_CODES } from "@/lib/nutrients/catalog";
 import { loadIntradayPulse } from "@/lib/analytics/intraday-pulse-io";
 import { DEFAULT_TIMEZONE, userDayKey } from "@/lib/tz/format";
 import { encodeOffsetCursor, decodeOffsetCursor } from "@/lib/mcp/pagination";
+import { loadAutoTakeRollingAnchors } from "@/lib/medications/auto-take";
 import {
   computeDisplayDue,
   OVERDUE_LOOKBACK_MS,
@@ -2010,6 +2011,18 @@ export const MCP_TOOLS: McpToolDefinition[] = [
       // The live era start per medication (see `live-era.ts`).
       const eraStartByMedId = liveEraStartsByMedication(eraFloors);
 
+      // v1.42.2 — under auto-take a rolling cadence stands where the job
+      // will record next (see `auto-take.ts`).
+      const engineLastIntakeAt = await loadAutoTakeRollingAnchors(prisma, {
+        userId: ctx.userId,
+        medicationIds: medications
+          .filter((m) => m.autoMarkTaken)
+          .map((m) => m.id),
+        now,
+        userTz,
+        lastIntakeAt: (id) => lastTakenAtByMedId.get(id) ?? null,
+      });
+
       const rows = medications.map((m) => {
         const display = computeDisplayDue({
           medication: {
@@ -2024,7 +2037,7 @@ export const MCP_TOOLS: McpToolDefinition[] = [
           schedules: dueSchedules(m),
           now,
           userTz,
-          lastIntakeAt: lastTakenAtByMedId.get(m.id) ?? null,
+          lastIntakeAt: engineLastIntakeAt(m.id),
           resolvedSlots: resolvedSlotsByMedId.get(m.id) ?? [],
           eraStart: eraStartByMedId.get(m.id) ?? null,
         });
diff --git a/src/lib/medications/__tests__/auto-mark-taken.test.ts b/src/lib/medications/__tests__/auto-mark-taken.test.ts
index a77065d7f..0f04c842b 100644
--- a/src/lib/medications/__tests__/auto-mark-taken.test.ts
+++ b/src/lib/medications/__tests__/auto-mark-taken.test.ts
@@ -10,25 +10,62 @@ import { describe, expect, it } from "vitest";
 import { sendsMedicationReminders } from "../auto-mark-taken";
 
 describe("sendsMedicationReminders", () => {
-  it("reminds only for an active, tracked, scheduled medication with reminders on and no auto-recording", () => {
-    for (let bits = 0; bits < 32; bits++) {
+  const at = {
+    now: new Date("2026-06-10T10:00:00.000Z"),
+    timeZone: "Europe/Berlin",
+  };
+
+  it("reminds only for an active, tracked, scheduled medication with reminders on, no auto-recording and a course not ended", () => {
+    for (let bits = 0; bits < 64; bits++) {
+      const ended = (bits & 32) !== 0;
       const med = {
         notificationsEnabled: (bits & 1) !== 0,
         autoMarkTaken: (bits & 2) !== 0,
         active: (bits & 4) !== 0,
         trackIntake: (bits & 8) !== 0,
         asNeeded: (bits & 16) !== 0,
+        endsOn: ended ? new Date("2026-06-09T00:00:00.000Z") : null,
       };
-      expect(sendsMedicationReminders(med), JSON.stringify(med)).toBe(
+      expect(sendsMedicationReminders(med, at), JSON.stringify(med)).toBe(
         med.notificationsEnabled &&
           !med.autoMarkTaken &&
           med.active &&
           med.trackIntake &&
-          !med.asNeeded,
+          !med.asNeeded &&
+          !ended,
       );
     }
   });
 
+  it("a course ending today still reminds; one that ended yesterday does not", () => {
+    const base = {
+      notificationsEnabled: true,
+      autoMarkTaken: false,
+      active: true,
+      trackIntake: true,
+      asNeeded: false,
+    };
+    expect(
+      sendsMedicationReminders(
+        { ...base, endsOn: new Date("2026-06-10T00:00:00.000Z") },
+        at,
+      ),
+    ).toBe(true);
+    expect(
+      sendsMedicationReminders(
+        { ...base, endsOn: new Date("2026-06-09T00:00:00.000Z") },
+        at,
+      ),
+    ).toBe(false);
+    // Late on the 10th in Berlin is already the 11th there.
+    expect(
+      sendsMedicationReminders(
+        { ...base, endsOn: new Date("2026-06-10T00:00:00.000Z") },
+        { ...at, now: new Date("2026-06-10T22:30:00.000Z") },
+      ),
+    ).toBe(false);
+  });
+
   it("is the decision at every gate and on every published DTO", () => {
     const src = (rel: string) =>
       readFileSync(join(process.cwd(), "src", rel), "utf8");
@@ -36,7 +73,9 @@ describe("sendsMedicationReminders", () => {
       "lib/jobs/reminder/medication-reminder-check.ts",
       "app/api/admin/notifications/reminder-check/route.ts",
     ]) {
-      expect(src(gate), gate).toMatch(/sendsMedicationReminders\(med\)/);
+      expect(src(gate), gate).toMatch(
+        /sendsMedicationReminders\(med, \{ now, timeZone: userTz \}\)/,
+      );
       // No send site falls back to the raw preference.
       expect(src(gate), gate).not.toMatch(
         /if \([^)]*med\.notificationsEnabled\)/,
diff --git a/src/lib/medications/__tests__/auto-take-window.test.ts b/src/lib/medications/__tests__/auto-take-window.test.ts
new file mode 100644
index 000000000..17b660fbf
--- /dev/null
+++ b/src/lib/medications/__tests__/auto-take-window.test.ts
@@ -0,0 +1,58 @@
+/**
+ * v1.42.2 — which window edits reopen past days for the auto-take pass.
+ */
+import { describe, expect, it, vi } from "vitest";
+
+import {
+  moveAutoTakeFloorToNow,
+  windowWidens,
+} from "@/lib/medications/auto-take";
+
+const d = (iso: string) => new Date(`${iso}T00:00:00.000Z`);
+
+describe("windowWidens", () => {
+  it("an earlier or removed start, a later or removed end, reopens time", () => {
+    const before = { startsOn: d("2026-06-10"), endsOn: d("2026-06-20") };
+    expect(windowWidens(before, { ...before, startsOn: d("2026-06-01") })).toBe(
+      true,
+    );
+    expect(windowWidens(before, { ...before, startsOn: null })).toBe(true);
+    expect(windowWidens(before, { ...before, endsOn: d("2026-06-30") })).toBe(
+      true,
+    );
+    expect(windowWidens(before, { ...before, endsOn: null })).toBe(true);
+  });
+
+  it("a later start, an earlier end, or no change reopens nothing", () => {
+    const before = { startsOn: d("2026-06-10"), endsOn: d("2026-06-20") };
+    expect(windowWidens(before, before)).toBe(false);
+    expect(windowWidens(before, { ...before, startsOn: d("2026-06-12") })).toBe(
+      false,
+    );
+    expect(windowWidens(before, { ...before, endsOn: d("2026-06-15") })).toBe(
+      false,
+    );
+    expect(
+      windowWidens(
+        { startsOn: null, endsOn: null },
+        { startsOn: d("2026-06-01"), endsOn: d("2026-06-30") },
+      ),
+    ).toBe(false);
+  });
+});
+
+describe("moveAutoTakeFloorToNow", () => {
+  it("moves only an auto-taken medication's earlier floor", async () => {
+    const updateMany = vi.fn(async () => ({ count: 1 }));
+    const now = new Date("2026-06-10T10:00:00.000Z");
+    await moveAutoTakeFloorToNow({ medication: { updateMany } }, "m1", now);
+    expect(updateMany).toHaveBeenCalledWith({
+      where: {
+        id: "m1",
+        autoMarkTaken: true,
+        autoMarkTakenSince: { lt: now },
+      },
+      data: { autoMarkTakenSince: now },
+    });
+  });
+});
diff --git a/src/lib/medications/auto-mark-taken.ts b/src/lib/medications/auto-mark-taken.ts
index e1dfe55e2..b8644d5a5 100644
--- a/src/lib/medications/auto-mark-taken.ts
+++ b/src/lib/medications/auto-mark-taken.ts
@@ -7,28 +7,39 @@
  * decision instead of re-deriving it from the raw flags.
  *
  * A medication reminds only when the person wants reminders
- * (`notificationsEnabled`), it is active (not paused or ended), it has doses
- * that fall due (intake tracked, not as-needed), and its doses are not
- * recorded automatically (`autoMarkTaken`). The person's own reminder
- * preference stays stored untouched: switching auto-mark-taken off restores
- * whatever they had chosen.
+ * (`notificationsEnabled`), it is active (not paused or ended), its course
+ * has not ended (`endsOn` lies before today on the person's clock: the
+ * worker expands no slot past it), it has doses that fall due (intake
+ * tracked, not as-needed), and its doses are not recorded automatically
+ * (`autoMarkTaken`). A course that has not started yet still reminds once
+ * it does. The person's own reminder preference stays stored untouched:
+ * switching auto-mark-taken off restores whatever they had chosen.
  */
+import { courseStatusAt } from "@/lib/medications/scheduling/recurrence";
+
 export interface ReminderGateMedication {
   notificationsEnabled: boolean;
   autoMarkTaken: boolean;
   active: boolean;
   trackIntake: boolean;
   asNeeded: boolean;
+  endsOn: Date | null;
 }
 
 export function sendsMedicationReminders(
   medication: ReminderGateMedication,
+  at: { now: Date; timeZone: string },
 ): boolean {
   return (
     medication.notificationsEnabled &&
     !medication.autoMarkTaken &&
     medication.active &&
     medication.trackIntake &&
-    !medication.asNeeded
+    !medication.asNeeded &&
+    courseStatusAt(
+      { startsOn: null, endsOn: medication.endsOn },
+      at.now,
+      at.timeZone,
+    ) !== "ENDED"
   );
 }
diff --git a/src/lib/medications/auto-take.ts b/src/lib/medications/auto-take.ts
new file mode 100644
index 000000000..271f0b3b8
--- /dev/null
+++ b/src/lib/medications/auto-take.ts
@@ -0,0 +1,415 @@
+/**
+ * v1.42.2 — the pure rules of auto-mark-taken that both the auto-take job
+ * and the read paths (the medication card's next due, the dashboard, the
+ * assistant tools) apply, so the card shows the slot the job will record.
+ *
+ *   - `autoTakeFloor`: the earliest slot the job may record.
+ *   - `decideSlot`: what the job does with one slot given its rows.
+ *   - `autoTakeRollingAnchor`: where a rolling cadence stands for an
+ *     auto-taken medication. The engine yields only `lastIntakeAt + N`; a
+ *     slot the job will never record (before the floor, inside a pause era,
+ *     skipped, auto-missed, or removed by the person) would otherwise hold
+ *     the cadence still forever. The anchor steps forward by N past every
+ *     such slot, keeping the rhythm, and is fed back to the engine as the
+ *     effective `lastIntakeAt`.
+ */
+import type { PrismaClient } from "@/generated/prisma/client";
+
+import { TRACKED_INTAKE_WHERE } from "@/lib/medications/intake-tracking";
+import {
+  advanceRollingOccurrence,
+  nextOccurrenceAfter,
+  rollingIntakeAnchorFor,
+  type Occurrence,
+} from "@/lib/medications/scheduling/recurrence";
+import type { SlotBand } from "@/lib/medications/scheduling/attribution";
+import {
+  buildCanonicalSchedule,
+  buildRecurrenceContext,
+  type WorkerMedicationRow,
+  type WorkerScheduleRow,
+} from "@/lib/medications/scheduling/worker-helpers";
+
+const DAY_MS = 24 * 60 * 60 * 1000;
+
+/** How far back one pass catches up on slots it has not filled yet. */
+export const INTAKE_AUTO_TAKE_LOOKBACK_MS = 7 * DAY_MS;
+
+/**
+ * Upper bound on single steps past handled rolling slots. Slots before the
+ * floor are crossed in one stride; only slots inside the catch-up window are
+ * stepped one by one, and there are at most a handful.
+ */
+const MAX_ROLLING_STEPS = 64;
+
+/** The slot floor for one medication: see `intake-auto-take.ts`. */
+export function autoTakeFloor(input: {
+  autoMarkTakenSince: Date;
+  createdAt: Date;
+  now: Date;
+}): Date {
+  return new Date(
+    Math.max(
+      input.autoMarkTakenSince.getTime(),
+      input.createdAt.getTime(),
+      input.now.getTime() - INTAKE_AUTO_TAKE_LOOKBACK_MS,
+    ),
+  );
+}
+
+/** True when `at` falls inside a `[pausedAt, resumedAt ?? now)` pause era. */
+export function isInPauseEra(
+  at: Date,
+  eras: readonly { pausedAt: Date; resumedAt: Date | null }[],
+  now: Date,
+): boolean {
+  const t = at.getTime();
+  return eras.some(
+    (era) =>
+      t >= era.pausedAt.getTime() && t < (era.resumedAt ?? now).getTime(),
+  );
+}
+
+/** One slot row as the occupancy check reads it. */
+export interface SlotRow {
+  id: string;
+  scheduledFor: Date;
+  takenAt: Date | null;
+  skipped: boolean;
+  autoMissed: boolean;
+  deletedAt: Date | null;
+  /** `USER_PIN` when the person bound the row to its `scheduledFor`. */
+  attributionSource?: "AUTO" | "USER_PIN";
+}
+
+export type SlotDecision =
+  | { kind: "create" }
+  | { kind: "convert"; rowId: string }
+  | {
+      kind: "leave";
+      reason: "actioned" | "removed" | "taken_nearby";
+    };
+
+/**
+ * Decide what the pass does with one slot, given every row of the
+ * medication around it (live and tombstoned). Pure, so the precedence rules
+ * are tested without a database.
+ *
+ * `band` is the slot's attribution band when the cadence has one (a take
+ * anywhere inside it belongs to this slot); `null` for a rolling slot, whose
+ * next occurrence is by definition later than every taken dose.
+ *
+ * Only a take that belongs to no other slot claims this one from inside its
+ * band. A take whose `scheduledFor` is another expected slot (`otherSlots`),
+ * or that the person pinned to an instant other than this slot, is that
+ * slot's dose however close its `takenAt` lies: the morning dose taken in
+ * the evening is still the morning dose, and the evening one stays due.
+ */
+export function decideSlot(
+  slotAt: Date,
+  rows: readonly SlotRow[],
+  band: Pick<SlotBand, "earlyStart" | "overdueEnd"> | null,
+  otherSlots: ReadonlySet<number> = new Set(),
+): SlotDecision {
+  const t = slotAt.getTime();
+  const onSlot = rows.filter((r) => r.scheduledFor.getTime() === t);
+  const liveOnSlot = onSlot.filter((r) => r.deletedAt === null);
+
+  if (liveOnSlot.some((r) => r.takenAt !== null || r.skipped || r.autoMissed)) {
+    return { kind: "leave", reason: "actioned" };
+  }
+  if (liveOnSlot.length === 0 && onSlot.length > 0) {
+    return { kind: "leave", reason: "removed" };
+  }
+  if (band) {
+    const from = band.earlyStart.getTime();
+    const to = band.overdueEnd.getTime();
+    const takenNearby = rows.some(
+      (r) =>
+        r.deletedAt === null &&
+        !r.skipped &&
+        r.takenAt !== null &&
+        r.takenAt.getTime() >= from &&
+        r.takenAt.getTime() <= to &&
+        !belongsElsewhere(r, t, otherSlots),
+    );
+    if (takenNearby) return { kind: "leave", reason: "taken_nearby" };
+  }
+  const pending = [...liveOnSlot].sort(
+    (a, b) => a.id.localeCompare(b.id), // deterministic pick on duplicates
+  )[0];
+  return pending ? { kind: "convert", rowId: pending.id } : { kind: "create" };
+}
+
+/** True when a row is attributed to a slot other than the one at `slotMs`. */
+function belongsElsewhere(
+  row: SlotRow,
+  slotMs: number,
+  otherSlots: ReadonlySet<number>,
+): boolean {
+  const at = row.scheduledFor.getTime();
+  if (at === slotMs) return false;
+  return row.attributionSource === "USER_PIN" || otherSlots.has(at);
+}
+
+export interface AutoTakeRollingMedication extends WorkerMedicationRow {
+  schedules: WorkerScheduleRow[];
+  pauseEras: { pausedAt: Date; resumedAt: Date | null }[];
+}
+
+/**
+ * The effective `lastIntakeAt` for a rolling cadence under auto-take: the
+ * real one when its next slot is one the job will record, otherwise an
+ * anchor stepped forward by N past every slot it will not record. `null`
+ * input stays `null` only when the course-start slot is recordable.
+ *
+ * A slot is passed over when it lies before `floor` (the option is never
+ * applied to history before it was switched on, and the catch-up window is
+ * bounded), inside a pause era, or, for a slot whose time has come, when the
+ * person already handled it: skipped, auto-missed, taken, or removed.
+ *
+ * Returns the input unchanged for a medication without a rolling schedule.
+ * When the course ends before a recordable slot, returns the last passed
+ * slot as the anchor, so the engine yields nothing.
+ */
+export function autoTakeRollingAnchor(input: {
+  medication: AutoTakeRollingMedication;
+  userTz: string;
+  floor: Date;
+  now: Date;
+  lastIntakeAt: Date | null;
+  rows: readonly SlotRow[];
+}): Date | null {
+  const { medication, userTz, floor, now, rows } = input;
+  const scheduleRow = medication.schedules.find(
+    (s) => s.rollingIntervalDays !== null && s.rollingIntervalDays > 0,
+  );
+  if (!scheduleRow || medication.oneShot) return input.lastIntakeAt;
+  const schedule = buildCanonicalSchedule(scheduleRow);
+  const n = schedule.rollingIntervalDays!;
+  const ctx = buildRecurrenceContext({
+    medication,
+    userTz,
+    lastIntakeAt: input.lastIntakeAt,
+  });
+
+  // The engine's identity: `lastIntakeAt + N`, or the course start.
+  let occ: Occurrence | null = nextOccurrenceAfter(schedule, floor, ctx);
+  if (!occ) return input.lastIntakeAt;
+  let last: Occurrence | null = null;
+
+  // Cross a long stretch before the floor in one stride, stopping one
+  // interval short so the single steps below land on the first slot at or
+  // after the floor, whatever DST did to the hours in between.
+  const strides = Math.floor(
+    (floor.getTime() - occ.at.getTime()) / (n * DAY_MS),
+  );
+  if (strides >= 2) {
+    last = occ;
+    occ = advanceRollingOccurrence(
+      { ...schedule, rollingIntervalDays: (strides - 1) * n },
+      occ,
+      ctx,
+    );
+  }
+
+  const passOver = (at: Date): boolean => {
+    if (at.getTime() < floor.getTime()) return true;
+    if (isInPauseEra(at, medication.pauseEras, now)) return true;
+    if (at.getTime() > now.getTime()) return false;
+    return decideSlot(at, rows, null).kind === "leave";
+  };
+
+  let stepped = last !== null;
+  for (let step = 0; occ && step < MAX_ROLLING_STEPS; step++) {
+    if (!passOver(occ.at)) break;
+    last = occ;
+    stepped = true;
+    occ = advanceRollingOccurrence(schedule, occ, ctx);
+  }
+  if (!stepped) return input.lastIntakeAt;
+  if (occ === null) return last!.at;
+  return rollingIntakeAnchorFor(schedule, occ, ctx) ?? input.lastIntakeAt;
+}
+
+/**
+ * The row window the job reads around one medication, and the read paths
+ * read for the same purpose: every row (tombstones included) whose slot or
+ * take falls within a day of `[floor, now]`.
+ */
+export function autoTakeRowWindow(floor: Date, now: Date) {
+  const gte = new Date(floor.getTime() - DAY_MS);
+  const lte = new Date(now.getTime() + DAY_MS);
+  return {
+    OR: [{ scheduledFor: { gte, lte } }, { takenAt: { gte, lte } }],
+  };
+}
+
+/**
+ * The medications the auto-take job works on (see `intake-auto-take.ts`),
+ * apart from the intake-tracking switch, which each caller spreads itself
+ * (`TRACKED_INTAKE_WHERE`) so the structural guard sees every reader ask.
+ */
+export function autoTakeEligibleWhere(now: Date) {
+  return {
+    autoMarkTaken: true,
+    autoMarkTakenSince: { not: null, lte: now },
+    active: true,
+    pausedAt: null,
+    asNeeded: false,
+  };
+}
+
+/**
+ * True when an edit to a medication's window reopens time before now: the
+ * start moves earlier (or goes), or the end moves later (or goes). Dates are
+ * calendar days, compared as stored.
+ */
+export function windowWidens(
+  before: { startsOn: Date | null; endsOn: Date | null },
+  after: { startsOn: Date | null; endsOn: Date | null },
+): boolean {
+  const startsEarlier =
+    before.startsOn !== null &&
+    (after.startsOn === null ||
+      after.startsOn.getTime() < before.startsOn.getTime());
+  const endsLater =
+    before.endsOn !== null &&
+    (after.endsOn === null || after.endsOn.getTime() > before.endsOn.getTime());
+  return startsEarlier || endsLater;
+}
+
+/**
+ * Move an auto-taken medication's floor to now when it lies before now.
+ * Called wherever an edit reopens past slots (a wider window, a medication
+ * made active again): the option was on, but the person never had those
+ * days as due, so the pass must not fill them as taken. A no-op on a
+ * medication without the option.
+ */
+export interface AutoTakeFloorClient {
+  medication: {
+    updateMany(args: {
+      where: {
+        id: string;
+        autoMarkTaken: true;
+        autoMarkTakenSince: { lt: Date };
+      };
+      data: { autoMarkTakenSince: Date };
+    }): Promise<{ count: number }>;
+  };
+}
+
+export async function moveAutoTakeFloorToNow(
+  client: AutoTakeFloorClient,
+  medicationId: string,
+  now: Date = new Date(),
+): Promise<void> {
+  await client.medication.updateMany({
+    where: {
+      id: medicationId,
+      autoMarkTaken: true,
+      autoMarkTakenSince: { lt: now },
+    },
+    data: { autoMarkTakenSince: now },
+  });
+}
+
+const ROLLING_SCHEDULE_SELECT = {
+  id: true,
+  windowStart: true,
+  windowEnd: true,
+  daysOfWeek: true,
+  timesOfDay: true,
+  reminderGraceMinutes: true,
+  rrule: true,
+  rollingIntervalDays: true,
+  scheduleType: true,
+  cyclicOnWeeks: true,
+  cyclicOffWeeks: true,
+  doseWindows: true,
+} as const;
+
+/**
+ * For the read paths: resolves the `lastIntakeAt` to hand the engine for
+ * each medication. An auto-taken rolling medication among `medicationIds`
+ * gets its stepped anchor; every other one its real last intake. At most
+ * one medication query and one row query, and none when `medicationIds` is
+ * empty.
+ */
+export async function loadAutoTakeRollingAnchors(
+  prisma: Pick<PrismaClient, "medication" | "medicationIntakeEvent">,
+  input: {
+    userId: string;
+    medicationIds: readonly string[];
+    now: Date;
+    userTz: string;
+    lastIntakeAt: (medicationId: string) => Date | null;
+  },
+): Promise<(medicationId: string) => Date | null> {
+  const out = new Map<string, Date | null>();
+  const resolve = (id: string) =>
+    out.has(id) ? (out.get(id) ?? null) : input.lastIntakeAt(id);
+  if (input.medicationIds.length === 0) return resolve;
+  const { now } = input;
+  const medications = await prisma.medication.findMany({
+    where: {
+      userId: input.userId,
+      id: { in: [...input.medicationIds] },
+      ...autoTakeEligibleWhere(now),
+      ...TRACKED_INTAKE_WHERE,
+      schedules: { some: { rollingIntervalDays: { not: null } } },
+    },
+    select: {
+      id: true,
+      startsOn: true,
+      endsOn: true,
+      oneShot: true,
+      createdAt: true,
+      autoMarkTakenSince: true,
+      schedules: { select: ROLLING_SCHEDULE_SELECT },
+      pauseEras: { select: { pausedAt: true, resumedAt: true } },
+    },
+  });
+  if (medications.length === 0) return resolve;
+
+  const floors = new Map<string, Date>();
+  let earliest = now;
+  for (const m of medications) {
+    const floor = autoTakeFloor({
+      autoMarkTakenSince: m.autoMarkTakenSince!,
+      createdAt: m.createdAt,
+      now,
+    });
+    floors.set(m.id, floor);
+    if (floor.getTime() < earliest.getTime()) earliest = floor;
+  }
+  const rows = await prisma.medicationIntakeEvent.findMany({
+    where: {
+      userId: input.userId,
+      medicationId: { in: medications.map((m) => m.id) },
+      ...autoTakeRowWindow(earliest, now),
+    },
+    select: {
+      id: true,
+      medicationId: true,
+      scheduledFor: true,
+      takenAt: true,
+      skipped: true,
+      autoMissed: true,
+      deletedAt: true,
+    },
+  });
+
+  for (const m of medications) {
+    const anchor = autoTakeRollingAnchor({
+      medication: m as AutoTakeRollingMedication,
+      userTz: input.userTz,
+      floor: floors.get(m.id)!,
+      now,
+      lastIntakeAt: input.lastIntakeAt(m.id),
+      rows: rows.filter((r) => r.medicationId === m.id),
+    });
+    out.set(m.id, anchor);
+  }
+  return resolve;
+}
diff --git a/src/lib/medications/courses.ts b/src/lib/medications/courses.ts
index 4abd7b7d0..760b187f9 100644
--- a/src/lib/medications/courses.ts
+++ b/src/lib/medications/courses.ts
@@ -27,6 +27,10 @@ import {
   type CourseStatus,
 } from "@/lib/medications/course-window";
 import { userDayKey } from "@/lib/tz/format";
+import {
+  moveAutoTakeFloorToNow,
+  windowWidens,
+} from "@/lib/medications/auto-take";
 
 type Tx = Prisma.TransactionClient;
 
@@ -129,17 +133,32 @@ async function loadOwned(tx: Tx, userId: string, medicationId: string) {
 
 type ProjectedWindow = { startsOn: Date | null; endsOn: Date | null };
 
-/** Write the medication's window from its courses. The only writer. */
+/**
+ * Write the medication's window from its courses. The only writer.
+ *
+ * v1.42.2 — a window that now reaches further into the past than before
+ * (an earlier start, a later or removed end) would let the auto-take pass
+ * fill the days it reopens as taken; its floor moves to now instead.
+ */
 async function project(tx: Tx, medicationId: string): Promise<ProjectedWindow> {
-  const courses = await tx.medicationCourse.findMany({
-    where: { medicationId },
-    select: { startsOn: true, endsOn: true },
-  });
+  const [before, courses] = await Promise.all([
+    tx.medication.findUnique({
+      where: { id: medicationId },
+      select: { startsOn: true, endsOn: true },
+    }),
+    tx.medicationCourse.findMany({
+      where: { medicationId },
+      select: { startsOn: true, endsOn: true },
+    }),
+  ]);
   const window = projectCourseWindow(courses);
   await tx.medication.update({
     where: { id: medicationId },
     data: { startsOn: window.startsOn, endsOn: window.endsOn },
   });
+  if (before && windowWidens(before, window)) {
+    await moveAutoTakeFloorToNow(tx, medicationId);
+  }
   return window;
 }
 
diff --git a/src/lib/medications/lifecycle.ts b/src/lib/medications/lifecycle.ts
index 80b84dc57..a021daf9c 100644
--- a/src/lib/medications/lifecycle.ts
+++ b/src/lib/medications/lifecycle.ts
@@ -21,9 +21,13 @@
 
 import { annotate } from "@/lib/logging/context";
 import { auditLog } from "@/lib/auth/audit";
+import {
+  moveAutoTakeFloorToNow,
+  type AutoTakeFloorClient,
+} from "@/lib/medications/auto-take";
 
 interface ReconcilePrisma {
-  medication: {
+  medication: AutoTakeFloorClient["medication"] & {
     findUnique: (args: {
       where: { id: string };
       select: { oneShot: true; active: true };
@@ -105,6 +109,8 @@ export async function reconcileOneShotState(
     where: { id: medicationId, userId, oneShot: true },
     data: { active: shouldBeActive },
   });
+  // v1.42.2 — active again: the auto-take pass starts from now.
+  if (shouldBeActive) await moveAutoTakeFloorToNow(prismaClient, medicationId);
 
   await auditLog("medication.oneShot.reconciled", {
     userId,
diff --git a/src/lib/medications/list-read.ts b/src/lib/medications/list-read.ts
index cbbfbd456..32f6301e8 100644
--- a/src/lib/medications/list-read.ts
+++ b/src/lib/medications/list-read.ts
@@ -13,6 +13,7 @@
  * readers. Mirrors `src/lib/dashboard/snapshot-read.ts` for the dashboard.
  */
 import { sendsMedicationReminders } from "@/lib/medications/auto-mark-taken";
+import { loadAutoTakeRollingAnchors } from "@/lib/medications/auto-take";
 import { prisma } from "@/lib/db";
 import { annotate, getEvent } from "@/lib/logging/context";
 import { resolveCourseFields } from "@/lib/medications/courses";
@@ -220,6 +221,15 @@ export async function buildMedicationsList(
   const now = new Date();
   // v1.40 (#1024) — every medication's courses, two queries for the list.
   const courseFieldsByMed = await resolveCourseFields(medications, now, userTz);
+  // v1.42.2 — a rolling cadence under auto-take stands where the auto-take
+  // job will record next, so the card shows that slot (see `auto-take.ts`).
+  const engineLastIntakeAt = await loadAutoTakeRollingAnchors(prisma, {
+    userId,
+    medicationIds: medications.filter((m) => m.autoMarkTaken).map((m) => m.id),
+    now,
+    userTz,
+    lastIntakeAt: (id) => lastTakenAtDateByMedicationId[id] ?? null,
+  });
 
   return medications.map((m) => {
     // v1.39.1 (#1033) — intake tracking off: the stored rows are a record,
@@ -241,7 +251,7 @@ export async function buildMedicationsList(
       schedules: liveSchedules,
       now,
       userTz,
-      lastIntakeAt: lastTakenAtDateByMedicationId[m.id] ?? null,
+      lastIntakeAt: engineLastIntakeAt(m.id),
       resolvedSlots: resolvedSlotsByMedId.get(m.id) ?? [],
       eraStart: eraStartByMedId.get(m.id) ?? null,
     });
@@ -328,7 +338,7 @@ export async function buildMedicationsList(
         (carriesPriorRollingOccurrence ? 1 : 0),
       nextDueAt: display ? display.at.toISOString() : null,
       // v1.42.2 — the server's own reminder decision, published resolved.
-      remindersActive: sendsMedicationReminders(m),
+      remindersActive: sendsMedicationReminders(m, { now, timeZone: userTz }),
       nextDueOverdue: display?.overdue ?? false,
       nextDueScheduleId: display?.scheduleId ?? null,
       // v1.39.4 (#1040) — whether the card offers taken / skip today, and
diff --git a/src/lib/medications/scheduling/recurrence.ts b/src/lib/medications/scheduling/recurrence.ts
index 31f1b8177..568336b39 100644
--- a/src/lib/medications/scheduling/recurrence.ts
+++ b/src/lib/medications/scheduling/recurrence.ts
@@ -593,6 +593,25 @@ export function advanceRollingOccurrence(
   return buildOccurrence(at, time, schedule);
 }
 
+/**
+ * The intake instant that makes `occurrence` the next rolling dose: the
+ * schedule's time on the local day N days earlier. Fed back as
+ * `lastIntakeAt`, the engine then yields exactly `occurrence`, which lets a
+ * caller that stepped a rolling cadence forward (past slots it will never
+ * record) hand the stepped position to every consumer of the engine.
+ */
+export function rollingIntakeAnchorFor(
+  schedule: CanonicalSchedule,
+  occurrence: Occurrence,
+  ctx: RecurrenceContext,
+): Date | null {
+  const n = schedule.rollingIntervalDays;
+  if (n === null || n <= 0) return null;
+  const time = schedule.timesOfDay[0] ?? schedule.windowStart;
+  const day = addCivilDays(civilDayOfInstant(occurrence.at, ctx.timeZone), -n);
+  return applyTimeOfDayToCivilDay(day, time, ctx.timeZone);
+}
+
 /**
  * v1.13.x compliance — RETROSPECTIVE rolling expansion.
  *
diff --git a/src/lib/openapi/routes/medications/schemas.ts b/src/lib/openapi/routes/medications/schemas.ts
index 50b5defa7..99e8a6d36 100644
--- a/src/lib/openapi/routes/medications/schemas.ts
+++ b/src/lib/openapi/routes/medications/schemas.ts
@@ -282,7 +282,7 @@ export const medicationResource = z
       .boolean()
       .optional()
       .describe(
-        "Present on the READ paths only (list and single GET). v1.42.2 — whether the server sends dose reminders for this medication: true only when `notificationsEnabled` is on, the medication is `active`, its intake is tracked (`trackIntake`), it is not `asNeeded`, and `autoMarkTaken` is off. The same decision gates every server-side reminder send. A client that arms local reminders arms them from this, not from `notificationsEnabled`. Read-only — computed, not stored.",
+        "Present on the READ paths only (list and single GET). v1.42.2 — whether the server sends dose reminders for this medication: true only when `notificationsEnabled` is on, the medication is `active`, its course has not ended (`endsOn` is today or later on the person's clock, or unset), its intake is tracked (`trackIntake`), it is not `asNeeded`, and `autoMarkTaken` is off. The same decision gates every server-side reminder send. A client that arms local reminders arms them from this, not from `notificationsEnabled`. Read-only — computed, not stored.",
       ),
     nextDueAt: z.iso
       .datetime({ offset: true })
@@ -375,7 +375,7 @@ export const medicationListEntry = medicationResource
     remindersActive: z
       .boolean()
       .describe(
-        "v1.42.2 — whether the server sends dose reminders for this medication: true only when `notificationsEnabled` is on, the medication is `active`, its intake is tracked (`trackIntake`), it is not `asNeeded`, and `autoMarkTaken` is off. The same decision gates every server-side reminder send. A client that arms local reminders arms them from this, not from `notificationsEnabled`. Read-only — computed, not stored.",
+        "v1.42.2 — whether the server sends dose reminders for this medication: true only when `notificationsEnabled` is on, the medication is `active`, its course has not ended (`endsOn` is today or later on the person's clock, or unset), its intake is tracked (`trackIntake`), it is not `asNeeded`, and `autoMarkTaken` is off. The same decision gates every server-side reminder send. A client that arms local reminders arms them from this, not from `notificationsEnabled`. Read-only — computed, not stored.",
       ),
     courseStatus: z
       .enum(["UPCOMING", "CURRENT", "ENDED"])
diff --git a/src/lib/search/__tests__/in-flight.test.ts b/src/lib/search/__tests__/in-flight.test.ts
new file mode 100644
index 000000000..0806052b9
--- /dev/null
+++ b/src/lib/search/__tests__/in-flight.test.ts
@@ -0,0 +1,26 @@
+import { describe, expect, it } from "vitest";
+
+import { SUPERSEDED, beginSearch, searchesInFlight } from "../in-flight";
+
+describe("beginSearch", () => {
+  it("a newer search of the same record stops the one before it", () => {
+    const first = beginSearch("actor", "record-a");
+    const second = beginSearch("actor", "record-a");
+    expect(first.signal.aborted).toBe(true);
+    expect(first.signal.reason).toBe(SUPERSEDED);
+    expect(second.signal.aborted).toBe(false);
+    first.end();
+    second.end();
+    expect(searchesInFlight()).toBe(0);
+  });
+
+  it("searches of two different records by one actor run side by side", () => {
+    const own = beginSearch("actor", "record-a");
+    const shared = beginSearch("actor", "record-b");
+    expect(own.signal.aborted).toBe(false);
+    expect(shared.signal.aborted).toBe(false);
+    own.end();
+    shared.end();
+    expect(searchesInFlight()).toBe(0);
+  });
+});
diff --git a/src/lib/search/in-flight.ts b/src/lib/search/in-flight.ts
index e58c01ee7..7d0a6c818 100644
--- a/src/lib/search/in-flight.ts
+++ b/src/lib/search/in-flight.ts
@@ -1,12 +1,14 @@
 /**
- * One search in flight per actor.
+ * One search in flight per actor and record.
  *
  * The palette searches once per pause in typing, and the client cancels the
  * previous request when the text changes. A cancelled fetch does not stop the
  * server, though: without this, every keystroke-pause left a search reading
  * and decrypting on the server until its own budget ran out, so a fast typist
- * held several at once. A new search by the same actor aborts the one before
- * it, which stops at its next budget check.
+ * held several at once. A new search by the same actor in the same record
+ * aborts the one before it, which stops at its next budget check. Searches
+ * of two different records (a tab on one's own record, another on a record
+ * shared with them) are two separate palettes and never cancel each other.
  *
  * Per process: on a multi-instance deploy two searches by one actor on two
  * instances both run, each still bounded by its own time budget and by the
@@ -18,20 +20,22 @@ const inFlight = new Map<string, AbortController>();
 export const SUPERSEDED = "search.superseded";
 
 export interface SearchSlot {
-  /** Aborted when the same actor starts a newer search. */
+  /** Aborted when the same actor starts a newer search of the same record. */
   signal: AbortSignal;
   /** Release the slot once the search answered (or failed). */
   end: () => void;
 }
 
-export function beginSearch(actorId: string): SearchSlot {
-  inFlight.get(actorId)?.abort(SUPERSEDED);
+export function beginSearch(actorId: string, recordId: string): SearchSlot {
+  // Ids are cuids, so the separator cannot occur inside either part.
+  const key = `${actorId}:${recordId}`;
+  inFlight.get(key)?.abort(SUPERSEDED);
   const controller = new AbortController();
-  inFlight.set(actorId, controller);
+  inFlight.set(key, controller);
   return {
     signal: controller.signal,
     end: () => {
-      if (inFlight.get(actorId) === controller) inFlight.delete(actorId);
+      if (inFlight.get(key) === controller) inFlight.delete(key);
     },
   };
 }
diff --git a/tests/integration/backup-round-trip.test.ts b/tests/integration/backup-round-trip.test.ts
index 6ba296592..7cde2c4cb 100644
--- a/tests/integration/backup-round-trip.test.ts
+++ b/tests/integration/backup-round-trip.test.ts
@@ -3620,6 +3620,16 @@ const COLUMN_EXCLUSIONS: Readonly<Record<string, string>> = {
     "readable copy of the sealed period location; the restore seals it and writes this empty",
 };
 
+/**
+ * Columns the restore carries on purpose as "set where it was set" rather
+ * than the same value, each with the reason. A presence check still fails a
+ * column that stops coming back at all.
+ */
+const COLUMN_PRESENCE_ONLY: Readonly<Record<string, string>> = {
+  "Medication.autoMarkTakenSince":
+    "the auto-take floor restarts at the restore, so doses a portable file cannot carry as removed are not filled again; pinned in the restore test for it",
+};
+
 /**
  * Columns a release adds ahead of the backup ends that carry them, so the
  * packages built in parallel on its branch each own their own section of the
@@ -3760,6 +3770,7 @@ function comparison(
   // A declared foreign key may be re-pointed at a row the restore minted, so
   // it is held to being set where it was set, not to the same id.
   if (column.isForeignKey) return "presence";
+  if (key in COLUMN_PRESENCE_ONLY) return "presence";
   return "value";
 }
 
@@ -3915,7 +3926,12 @@ describe("every column of every two-ended model survives a real restore", () =>
       const rows = seededRows.get(model.name)!;
       expect(rows.length, `${model.name} seeded no row`).toBeGreaterThan(0);
       for (const column of model.columns) {
-        if (comparison(column) !== "value") continue;
+        if (
+          comparison(column) !== "value" &&
+          !(`${model.name}.${column.name}` in COLUMN_PRESENCE_ONLY)
+        ) {
+          continue;
+        }
         // Filling it would turn the fixture's row into a tombstone, and which
         // models carry tombstones is a row decision, not a column one.
         if (column.name === "deletedAt") continue;
@@ -4092,6 +4108,7 @@ describe("every column of every two-ended model survives a real restore", () =>
     );
     const stale = [
       ...Object.keys(COLUMN_EXCLUSIONS),
+      ...Object.keys(COLUMN_PRESENCE_ONLY),
       ...Object.keys(RELEASE_PENDING_COLUMNS),
       ...Object.keys(READ_THROUGH),
       ...Object.keys(FILL_OVERRIDES),
@@ -4315,6 +4332,110 @@ describe("the account's own settings survive a real restore", () => {
   });
 });
 
+describe("automatic dose recording after a restore", () => {
+  it("starts its floor at the restore, so a dose removed before the export stays removed", async () => {
+    const prisma = getPrismaClient();
+    await seedAdminSession(prisma);
+    await createOwner(prisma);
+    await prisma.user.update({
+      where: { id: OWNER_ID },
+      data: { timezone: "UTC" },
+    });
+    const now = Date.now();
+    const dayAt12 = (offset: number) => {
+      const d = new Date(now + offset * 86_400_000);
+      return new Date(
+        Date.UTC(d.getUTCFullYear(), d.getUTCMonth(), d.getUTCDate(), 12),
+      );
+    };
+    const since = dayAt12(-10);
+    const medication = await prisma.medication.create({
+      data: {
+        userId: OWNER_ID,
+        name: "Evening supplement",
+        dose: "1",
+        createdAt: dayAt12(-20),
+        autoMarkTaken: true,
+        autoMarkTakenSince: since,
+        schedules: {
+          create: {
+            windowStart: "12:00",
+            windowEnd: "12:00",
+            timesOfDay: ["12:00"],
+            rrule: "FREQ=DAILY",
+            scheduleType: "SCHEDULED",
+          },
+        },
+      },
+      select: { id: true },
+    });
+    // The pass filled the last days; the person removed the dose two days
+    // ago (they did not take it). A portable file carries no removal.
+    const removed = dayAt12(-2);
+    for (let offset = -6; offset <= -1; offset++) {
+      const at = dayAt12(offset);
+      await prisma.medicationIntakeEvent.create({
+        data: {
+          userId: OWNER_ID,
+          medicationId: medication.id,
+          scheduledFor: at,
+          takenAt: at,
+          source: "REMINDER",
+          autoRecorded: true,
+          deletedAt:
+            at.getTime() === removed.getTime()
+              ? new Date(at.getTime() + 3_600_000)
+              : null,
+        },
+      });
+    }
+
+    const { payload } = await buildFullBackupPayload(prisma, OWNER_ID, {
+      purpose: "portable-export",
+    });
+    await prisma.user.delete({ where: { id: OWNER_ID } });
+    await createOwner(prisma);
+    const backup = await prisma.dataBackup.create({
+      data: {
+        userId: OWNER_ID,
+        type: "TWO_ENDED_ROUND_TRIP",
+        data: encrypt(JSON.stringify(payload)),
+      },
+    });
+    const restoredFrom = Date.now();
+    const response = await POST(
+      new Request(`http://localhost/api/admin/backups/${backup.id}/restore`, {
+        method: "POST",
+        headers: { "content-type": "application/json" },
+        body: JSON.stringify({ confirm: "RESTORE" }),
+      }) as never,
+      { params: Promise.resolve({ id: backup.id }) },
+    );
+    expect(response.status).toBe(200);
+
+    const restored = await prisma.medication.findFirstOrThrow({
+      where: { userId: OWNER_ID },
+      select: { id: true, autoMarkTaken: true, autoMarkTakenSince: true },
+    });
+    expect(restored.autoMarkTaken).toBe(true);
+    expect(restored.autoMarkTakenSince!.getTime()).toBeGreaterThanOrEqual(
+      restoredFrom,
+    );
+
+    const { runIntakeAutoTakePass } =
+      await import("@/lib/jobs/intake-auto-take");
+    await runIntakeAutoTakePass(prisma, { nowMs: Date.now() });
+    const onRemovedSlot = await prisma.medicationIntakeEvent.count({
+      where: {
+        medicationId: restored.id,
+        deletedAt: null,
+        scheduledFor: removed,
+      },
+    });
+    expect(onRemovedSlot).toBe(0);
+  });
+});
+
 describe("a document kind added after the backup format", () => {
   it("restores a sick note as a sick note", async () => {
     const prisma = getPrismaClient();
diff --git a/tests/integration/medication-auto-mark-taken.test.ts b/tests/integration/medication-auto-mark-taken.test.ts
index d82a6ceb1..b30f2e907 100644
--- a/tests/integration/medication-auto-mark-taken.test.ts
+++ b/tests/integration/medication-auto-mark-taken.test.ts
@@ -377,6 +377,196 @@ describe("auto-mark-taken pass", () => {
       select: { autoMarkTaken: true, autoMarkTakenSince: true },
     });
     expect(off).toEqual({ autoMarkTaken: false, autoMarkTakenSince: null });
+
+    // Each flip is named in the audit row with what it was before; the
+    // re-save that left it on names no change to it.
+    const audits = await prisma.auditLog.findMany({
+      where: { userId, action: "medication.update" },
+      orderBy: { createdAt: "asc" },
+      select: { details: true },
+    });
+    const details = audits.map(
+      (a) =>
+        JSON.parse(a.details ?? "{}") as {
+          fields: string[];
+          previous: Record<string, unknown>;
+        },
+    );
+    expect(details).toHaveLength(3);
+    // Two of the same timestamp: matched by content, not order.
+    const flips = details
+      .filter((d) => d.fields.includes("autoMarkTaken"))
+      .map((d) => d.previous.autoMarkTaken)
+      .sort();
+    expect(flips).toEqual([false, true]);
+    const resave = details.find((d) => d.fields.includes("name"));
+    expect(resave?.fields).not.toContain("autoMarkTaken");
+  });
+
+  it("the create audit row says whether doses are recorded automatically", async () => {
+    const prisma = getPrismaClient();
+    const userId = await makeUser();
+    const route = await import("@/app/api/medications/route");
+    at("2026-06-10T10:00:00.000Z");
+    const res = await (route.POST as Handler)(
+      new NextRequest("http://localhost/api/medications", {
+        method: "POST",
+        body: JSON.stringify({
+          name: "Vitamin D",
+          dose: "1 capsule",
+          autoMarkTaken: true,
+          schedules: [{ windowStart: "19:00", windowEnd: "19:00" }],
+        }),
+        headers: { "content-type": "application/json" },
+      }),
+      { params: Promise.resolve({}) },
+    );
+    expect(res.status).toBe(201);
+    const audit = await prisma.auditLog.findFirstOrThrow({
+      where: { userId, action: "medication.create" },
+      select: { details: true },
+    });
+    expect(JSON.parse(audit.details ?? "{}")).toMatchObject({
+      autoMarkTaken: true,
+    });
+  });
+});
+
+describe("reopening past days never backfills them", () => {
+  it("a later end date or a re-activation moves the floor to now", async () => {
+    const prisma = getPrismaClient();
+    const userId = await makeUser();
+    const medicationId = await seedEvening(userId, "Course", {
+      autoMarkTakenSince: new Date("2026-06-01T00:00:00.000Z"),
+    });
+    const route = await import("@/app/api/medications/[id]/route");
+    const put = (body: unknown) =>
+      (route.PUT as Handler)(
+        new NextRequest(`http://localhost/api/medications/${medicationId}`, {
+          method: "PUT",
+          body: JSON.stringify(body),
+          headers: { "content-type": "application/json" },
+        }),
+        { params: Promise.resolve({ id: medicationId }) },
+      );
+    const since = async () =>
+      (
+        await prisma.medication.findUniqueOrThrow({
+          where: { id: medicationId },
+          select: { autoMarkTakenSince: true },
+        })
+      ).autoMarkTakenSince?.toISOString();
+
+    // The course ended on 06-05; the pass filled up to then.
+    at("2026-06-03T10:00:00.000Z");
+    expect(
+      (await put({ startsOn: "2026-06-01", endsOn: "2026-06-05" })).status,
+    ).toBe(200);
+    expect(await since()).toBe("2026-06-01T00:00:00.000Z");
+    at("2026-06-10T10:00:00.000Z");
+    await runIntakeAutoTakePass(prisma, { nowMs: Date.now() });
+    const filled = (await liveRows(medicationId)).length;
+
+    // Extended on 06-10 to the end of the month: 06-06..06-09 reopen, but
+    // the person never had them as due.
+    expect((await put({ endsOn: "2026-06-30" })).status).toBe(200);
+    expect(await since()).toBe("2026-06-10T10:00:00.000Z");
+    await runIntakeAutoTakePass(prisma, { nowMs: Date.now() });
+    expect((await liveRows(medicationId)).length).toBe(filled);
+
+    // Paused, then active again a week later: nothing in between is filled.
+    expect((await put({ active: false })).status).toBe(200);
+    at("2026-06-17T10:00:00.000Z");
+    expect((await put({ active: true })).status).toBe(200);
+    expect(await since()).toBe("2026-06-17T10:00:00.000Z");
+    await runIntakeAutoTakePass(prisma, { nowMs: Date.now() });
+    expect((await liveRows(medicationId)).length).toBe(filled);
+  });
+});
+
+describe("rolling cadence under auto-take", () => {
+  it("never stalls on a removed dose, and the card shows the slot the pass records", async () => {
+    const prisma = getPrismaClient();
+    const userId = await makeUser();
+    // Weekly at 09:00 local. Last taken Mon 06-01; the 06-08 dose the pass
+    // recorded was removed by the person (not taken that week).
+    const medication = await prisma.medication.create({
+      data: {
+        userId,
+        name: "Weekly injection",
+        dose: "1 pen",
+        createdAt: new Date("2026-05-01T00:00:00.000Z"),
+        autoMarkTaken: true,
+        autoMarkTakenSince: new Date("2026-05-01T00:00:00.000Z"),
+        schedules: {
+          create: {
+            windowStart: "09:00",
+            windowEnd: "09:00",
+            timesOfDay: ["09:00"],
+            rollingIntervalDays: 7,
+            scheduleType: "SCHEDULED",
+          },
+        },
+      },
+      select: { id: true },
+    });
+    await prisma.medicationIntakeEvent.createMany({
+      data: [
+        {
+          userId,
+          medicationId: medication.id,
+          scheduledFor: new Date("2026-06-01T07:00:00.000Z"),
+          takenAt: new Date("2026-06-01T07:00:00.000Z"),
+          source: "WEB",
+        },
+        {
+          userId,
+          medicationId: medication.id,
+          scheduledFor: new Date("2026-06-08T07:00:00.000Z"),
+          takenAt: new Date("2026-06-08T07:00:00.000Z"),
+          autoRecorded: true,
+          source: "REMINDER",
+          deletedAt: new Date("2026-06-08T12:00:00.000Z"),
+        },
+      ],
+    });
+
+    const detail = await import("@/app/api/medications/[id]/route");
+    const list = await import("@/app/api/medications/route");
+    const nextDue = async () => {
+      const res = await (detail.GET as Handler)(
+        new NextRequest(`http://localhost/api/medications/${medication.id}`),
+        { params: Promise.resolve({ id: medication.id }) },
+      );
+      const listRes = await (list.GET as Handler)(
+        new NextRequest("http://localhost/api/medications"),
+        { params: Promise.resolve({}) },
+      );
+      const listed = (
+        (await listRes.json()) as {
+          data: Array<{ id: string; nextDueAt: string | null }>;
+        }
+      ).data.find((m) => m.id === medication.id);
+      const own = ((await res.json()) as { data: { nextDueAt: string | null } })
+        .data.nextDueAt;
+      expect(listed?.nextDueAt).toBe(own);
+      return own;
+    };
+
+    at("2026-06-10T08:00:00.000Z");
+    expect(await nextDue()).toBe("2026-06-15T07:00:00.000Z");
+
+    at("2026-06-15T07:20:00.000Z");
+    const result = await runIntakeAutoTakePass(prisma, {
+      nowMs: Date.now(),
+    });
+    expect(result.recordedCount).toBe(1);
+    const recorded = (await liveRows(medication.id)).filter(
+      (r) => r.autoRecorded,
+    );
+    expect(recorded.map((r) => r.scheduledFor.toISOString())).toEqual([
+      "2026-06-15T07:00:00.000Z",
+    ]);
   });
 });
 
@@ -394,14 +584,17 @@ describe("remindersActive — the published value is the gate", () => {
       active: boolean;
       trackIntake: boolean;
       asNeeded: boolean;
+      endsOn: Date | null;
     }> = [];
-    for (let bits = 0; bits < 32; bits++) {
+    for (let bits = 0; bits < 64; bits++) {
       combos.push({
         notificationsEnabled: (bits & 1) !== 0,
         autoMarkTaken: (bits & 2) !== 0,
         active: (bits & 4) !== 0,
         trackIntake: (bits & 8) !== 0,
         asNeeded: (bits & 16) !== 0,
+        // A course that ended the day before.
+        endsOn: (bits & 32) !== 0 ? new Date("2026-06-09T00:00:00.000Z") : null,
       });
     }
     const ids: string[] = [];
@@ -446,7 +639,10 @@ describe("remindersActive — the published value is the gate", () => {
     const detail = await import("@/app/api/medications/[id]/route");
     let trueCount = 0;
     for (const [i, id] of ids.entries()) {
-      const expected = sendsMedicationReminders(combos[i]);
+      const expected = sendsMedicationReminders(combos[i], {
+        now: new Date(),
+        timeZone: TZ,
+      });
       if (expected) trueCount++;
       expect(listed.get(id), `list combo ${i}`).toBe(expected);
       const res = await (detail.GET as Handler)(
@@ -456,7 +652,56 @@ describe("remindersActive — the published value is the gate", () => {
       const body = (await res.json()) as { data: { remindersActive: boolean } };
       expect(body.data.remindersActive, `detail combo ${i}`).toBe(expected);
     }
-    // Exactly one combination reminds: on, not auto, active, tracked, scheduled.
+    // Exactly one combination reminds: on, not auto, active, tracked,
+    // scheduled, course not ended.
     expect(trueCount).toBe(1);
   });
+
+  it("a course that has ended reads as not reminding, and the worker sends nothing for it", async () => {
+    const prisma = getPrismaClient();
+    const userId = await makeUser();
+    const ended = await seedEvening(userId, "Antibiotic", {
+      autoMarkTakenSince: null,
+    });
+    const running = await seedEvening(userId, "Iron", {
+      autoMarkTakenSince: null,
+    });
+    await prisma.medication.update({
+      where: { id: ended },
+      data: { endsOn: new Date("2026-06-09T00:00:00.000Z") },
+    });
+    for (const tick of [
+      "2026-06-10T17:30:00.000Z",
+      "2026-06-10T19:00:00.000Z",
+      "2026-06-10T22:00:00.000Z",
+    ]) {
+      at(tick);
+      await handleReminderCheck([]);
+    }
+    const dispatchedFor = (medicationId: string) =>
+      vi
+        .mocked(dispatchNotification)
+        .mock.calls.filter(
+          ([arg]) =>
+            (arg as { metadata?: { medicationId?: string } }).metadata
+              ?.medicationId === medicationId,
+        ).length;
+    expect(dispatchedFor(running)).toBeGreaterThan(0);
+    expect(dispatchedFor(ended)).toBe(0);
+
+    const list = await import("@/app/api/medications/route");
+    const res = await (list.GET as Handler)(
+      new NextRequest("http://localhost/api/medications"),
+      { params: Promise.resolve({}) },
+    );
+    const published = new Map(
+      (
+        (await res.json()) as {
+          data: Array<{ id: string; remindersActive: boolean }>;
+        }
+      ).data.map((m) => [m.id, m.remindersActive] as const),
+    );
+    expect(published.get(running)).toBe(true);
+    expect(published.get(ended)).toBe(false);
+  });
 });