diff --git a/frontend/src/app/pages/Workflows/AddToSchedulePopover.tsx b/frontend/src/app/pages/Workflows/AddToSchedulePopover.tsx
new file mode 100644
index 00000000..7e1e576d
--- /dev/null
+++ b/frontend/src/app/pages/Workflows/AddToSchedulePopover.tsx
@@ -0,0 +1,87 @@
+import React, { useCallback } from 'react';
+import Box from '@mui/material/Box';
+import Typography from '@mui/material/Typography';
+import Popover from '@mui/material/Popover';
+import CalendarMonthRounded from '@mui/icons-material/CalendarMonthRounded';
+import TuneRoundedIcon from '@mui/icons-material/TuneRounded';
+import { useClaudeTokens } from '@/shared/styles/ThemeContext';
+import { useAppDispatch } from '@/shared/hooks';
+import { addWorkflowCard } from '@/shared/state/dashboardLayoutSlice';
+import { openWorkflowCard, updateWorkflow, type Workflow } from '@/shared/state/workflowsSlice';
+import { describeSchedule } from './scheduleUtils';
+
+interface Props {
+  anchorEl: HTMLElement | null;
+  workflow: Workflow | null;
+  onClose: () => void;
+}
+
+// Opens off an Un-scheduled workflow's "+" icon. Two paths: keep the cadence
+// the workflow already carries (just flip enabled on) or open the scheduler
+// to change it. Enabling moves the row into "Scheduled workflows" since
+// isSchedulable keys off schedule.enabled.
+export default function AddToSchedulePopover({ anchorEl, workflow, onClose }: Props) {
+  const c = useClaudeTokens();
+  const dispatch = useAppDispatch();
+
+  // describeSchedule returns "Not scheduled" while disabled; preview the
+  // cadence as if it were on so "Keep" shows what it would commit to.
+  const summary = workflow ? describeSchedule({ ...workflow.schedule, enabled: true }) : '';
+
+  const keep = useCallback(() => {
+    if (!workflow) return;
+    dispatch(updateWorkflow({
+      id: workflow.id,
+      patch: { schedule: { ...workflow.schedule, enabled: true } as any },
+      ifMatch: workflow.updated_at || null,
+    }));
+    onClose();
+  }, [dispatch, workflow, onClose]);
+
+  const change = useCallback(() => {
+    if (!workflow) return;
+    dispatch(addWorkflowCard({ workflowId: workflow.id }));
+    dispatch(openWorkflowCard({ workflowId: workflow.id, view: 'scheduling' }));
+    onClose();
+  }, [dispatch, workflow, onClose]);
+
+  const rowSx = {
+    display: 'flex', alignItems: 'center', gap: 0.9,
+    px: 0.75, py: 0.65, borderRadius: `${c.radius.md}px`, cursor: 'pointer',
+    '&:hover': { bgcolor: c.bg.elevated },
+  };
+  const iconSx = {
+    width: 28, height: 28, borderRadius: `${c.radius.md}px`, flexShrink: 0,
+    bgcolor: c.accent.primary + '18', color: c.accent.primary,
+    display: 'flex', alignItems: 'center', justifyContent: 'center',
+  };
+
+  return (
+    <Popover
+      open={Boolean(anchorEl && workflow)}
+      anchorEl={anchorEl}
+      onClose={onClose}
+      anchorOrigin={{ vertical: 'center', horizontal: 'right' }}
+      transformOrigin={{ vertical: 'center', horizontal: 'left' }}
+      slotProps={{ paper: { sx: { width: 272, p: 1, ml: 0.75 } } }}
+    >
+      <Typography sx={{ fontSize: '0.72rem', fontWeight: 700, color: c.text.muted, letterSpacing: '0.06em', px: 0.75, mb: 0.5 }}>
+        ADD TO SCHEDULE
+      </Typography>
+      <Box role="button" onClick={keep} sx={rowSx}>
+        <Box sx={iconSx}><CalendarMonthRounded sx={{ fontSize: 16 }} /></Box>
+        <Box sx={{ minWidth: 0 }}>
+          <Typography sx={{ fontSize: '0.84rem', fontWeight: 600, color: c.text.primary }}>Keep this schedule</Typography>
+          <Typography sx={{ fontSize: '0.72rem', color: c.text.muted, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{summary}</Typography>
+        </Box>
+      </Box>
+      <Box role="button" onClick={change} sx={rowSx}>
+        <Box sx={iconSx}><TuneRoundedIcon sx={{ fontSize: 16 }} /></Box>
+        <Box sx={{ minWidth: 0 }}>
+          <Typography sx={{ fontSize: '0.84rem', fontWeight: 600, color: c.text.primary }}>Change schedule…</Typography>
+          <Typography sx={{ fontSize: '0.72rem', color: c.text.muted }}>Pick a different time</Typography>
+        </Box>
+      </Box>
+    </Popover>
+  );
+}