Add the quiet calendar capsule

config/dot/quickshell/modules/bar/Bar.qml

@@ -104,6 +104,10 @@ PanelWindow {
             anchors.verticalCenter: parent.verticalCenter
             spacing: Theme.itemSpacing
 
+            CalendarIndicator {
+                anchors.verticalCenter: parent.verticalCenter
+            }
+
             ActivityIndicator {
                 anchors.verticalCenter: parent.verticalCenter
             }

config/dot/quickshell/modules/bar/CalendarIndicator.qml

@@ -0,0 +1,53 @@
+// A deliberately quiet appointment reminder. It only enters the bar during
+// the narrow window where an upcoming event is immediately useful.
+
+import QtQuick
+import QtQuick.Controls
+import qs.config
+import qs.services
+import qs.widgets
+
+Pill {
+    id: root
+
+    visible: CalendarAgenda.capsuleVisible
+    opacity: visible ? 1 : 0
+    horizontalPadding: 8
+    onActivated: ShellState.openDateMenu("agenda")
+
+    ToolTip.visible: root.hovered && root.visible
+    ToolTip.delay: 500
+    ToolTip.text: CalendarAgenda.nextEvent?.summary ?? "Upcoming event"
+
+    Behavior on opacity {
+        NumberAnimation {
+            duration: 120
+            easing.type: Easing.OutCubic
+        }
+    }
+
+    Behavior on implicitWidth {
+        NumberAnimation {
+            duration: 120
+            easing.type: Easing.OutCubic
+        }
+    }
+
+    Text {
+        anchors.verticalCenter: parent.verticalCenter
+        text: "\u{F00ED}"
+        color: Theme.accent
+        font.family: Theme.fontMono
+        font.pixelSize: 13
+    }
+
+    Text {
+        anchors.verticalCenter: parent.verticalCenter
+        text: CalendarAgenda.capsuleText
+        color: Theme.fg
+        font.family: Theme.fontFamily
+        font.features: Theme.tabularFigures
+        font.pixelSize: Theme.fontSizeSmall
+        font.weight: Font.DemiBold
+    }
+}

config/dot/quickshell/services/CalendarAgenda.qml

@@ -179,12 +179,37 @@ Singleton {
     }
 
     function applyFixture(name: string): void {
-        if (name !== "daybook")
+        if (name !== "daybook" && name !== "upcoming" && name !== "outside-window")
             return;
 
         root.watchWanted = false;
         root.fixtureMode = true;
         root.fixtureNow = Math.floor(new Date(2026, 7, 17, 11, 6).getTime() / 1000);
+
+        if (name === "upcoming" || name === "outside-window") {
+            const offset = name === "upcoming" ? 12 * 60 : 20 * 60;
+            root.sources = [{ id: "fixture-work", name: "Fixture Work", color: "#82aaff" }];
+            root.events = [
+                {
+                    id: "fixture-work:timed:1", sourceId: "fixture-work", uid: "fixture-timed",
+                    summary: "Fixture appointment", start: root.fixtureNow + offset,
+                    end: root.fixtureNow + offset + 30 * 60, allDay: false,
+                    location: "", joinUrl: ""
+                },
+                {
+                    id: "fixture-work:all-day:1", sourceId: "fixture-work", uid: "fixture-all-day",
+                    summary: "Fixture all day", start: Math.floor(new Date(2026, 7, 17).getTime() / 1000),
+                    end: Math.floor(new Date(2026, 7, 18).getTime() / 1000), allDay: true,
+                    location: "", joinUrl: ""
+                }
+            ];
+            root.errors = [];
+            root.generatedAt = root.fixtureNow;
+            root.phase = "ready";
+            root.selectIsoDate("2026-08-17");
+            return;
+        }
+
         root.sources = [
             { id: "fixture-work", name: "Fixture Work", color: "#82aaff" },
             { id: "fixture-cloud", name: "Fixture Cloud", color: "#c3e88d" },

docs/superpowers/plans/2026-08-17-calendar-agenda.md

@@ -660,7 +660,7 @@ git commit -m "Build the Prism calendar Daybook"
 - Produces: a right-side Pill showing calendar glyph plus `12m` or `Now`.
 - Produces: `applyFixture("upcoming")` and `applyFixture("outside-window")` for boundary tests.
 
-- [ ] **Step 1: Add failing capsule boundary assertions**
+- [x] **Step 1: Add failing capsule boundary assertions**
 
 Append:
 
@@ -676,13 +676,13 @@ jq -e '.capsuleVisible == false' <<<"$(qs ipc call calendar-agenda status)" >/de
 
 Run and expect RED because those fixtures do not exist.
 
-- [ ] **Step 2: Implement deterministic timing fixtures and capsule state**
+- [x] **Step 2: Implement deterministic timing fixtures and capsule state**
 
 Add `fixtureNow` to CalendarAgenda. Production uses `Date.now() / 1000`; fixture modes use their explicit clock. `upcoming` creates one timed event exactly 12 minutes ahead. `outside-window` creates one 20 minutes ahead plus an all-day event. Verify all-day never wins `nextEvent`.
 
 Use a one-minute `Timer` only while events are loaded to update relative time. Midnight refresh remains separate. There is no sub-minute repaint.
 
-- [ ] **Step 3: Build CalendarIndicator and mount it in Bar**
+- [x] **Step 3: Build CalendarIndicator and mount it in Bar**
 
 Use `Pill` with `visible: CalendarAgenda.capsuleVisible`, horizontal padding 8, a calendar Nerd Font glyph, and tabular relative text. `onActivated` opens Agenda. Import `QtQuick.Controls` and use `ToolTip.visible: root.hovered && root.visible` with the next event's title; the title must not otherwise appear in the bar.
 
@@ -690,7 +690,7 @@ Mount the indicator at the beginning of Bar's right row, before ActivityIndicato
 
 Use a single 120 ms opacity/width entrance tied to visibility. No looping animation.
 
-- [ ] **Step 4: Run capsule and full shell contracts**
+- [x] **Step 4: Run capsule and full shell contracts**
 
 ```bash
 tests/quickshell/calendar-agenda-contract.sh
@@ -699,7 +699,7 @@ for test in tests/quickshell/*.sh; do "$test"; done
 
 Expected: calendar fixture boundaries PASS and every existing Quickshell contract remains green.
 
-- [ ] **Step 5: Commit the capsule**
+- [x] **Step 5: Commit the capsule**
 
 ```bash
 git add config/dot/quickshell/modules/bar/CalendarIndicator.qml \

tests/quickshell/calendar-agenda-contract.sh

@@ -49,6 +49,16 @@ for component in AgendaPane AgendaEvent NotificationSummary; do
         || fail "$component is not registered"
 done
 
+qs ipc call calendar-agenda fixture upcoming >/dev/null
+jq -e '.capsuleVisible == true and .capsuleText == "12m"' \
+    <<<"$(qs ipc call calendar-agenda status)" >/dev/null \
+    || fail 'upcoming capsule window is wrong'
+
+qs ipc call calendar-agenda fixture outside-window >/dev/null
+jq -e '.capsuleVisible == false' \
+    <<<"$(qs ipc call calendar-agenda status)" >/dev/null \
+    || fail 'capsule appears outside the quiet window'
+
 qs ipc call calendar-agenda reset >/dev/null
 jq -e '.fixture == false' <<<"$(qs ipc call calendar-agenda status)" >/dev/null \
     || fail 'fixture reset did not restore live mode'