diff --git a/apps/api/src/routes/pets.ts b/apps/api/src/routes/pets.ts
index dbc5418..f8b6440 100644
--- a/apps/api/src/routes/pets.ts
+++ b/apps/api/src/routes/pets.ts
@@ -1,7 +1,7 @@
 import { Hono } from "hono";
 import { zValidator } from "@hono/zod-validator";
 import { z } from "zod/v3";
-import { and, eq, exists, getDb, or, pets, appointments } from "../db/index.js";
+import { and, desc, eq, exists, getDb, gte, groomingVisitLogs, or, pets, appointments, staff, services, sql } from "../db/index.js";
 import type { AppEnv } from "../middleware/rbac.js";
 import {
   getPresignedUploadUrl,
@@ -283,3 +283,133 @@ petsRouter.get("/:petId/photo", async (c) => {
   const url = await getPresignedGetUrl(pet.photoKey);
   return c.json({ url, photoKey: pet.photoKey, photoUploadedAt: pet.photoUploadedAt });
 });
+
+// ─── Profile Summary ───────────────────────────────────────────────────────────
+
+async function groomerLinkageCheck(
+  db: ReturnType<typeof getDb>,
+  clientId: string,
+  staffRow: NonNullable<AppEnv["Variables"]["staff"]>
+): Promise<boolean> {
+  const [linkage] = await db
+    .select({ id: appointments.id })
+    .from(appointments)
+    .where(
+      and(
+        eq(appointments.clientId, clientId),
+        or(
+          eq(appointments.staffId, staffRow.id),
+          eq(appointments.batherStaffId, staffRow.id)
+        )
+      )
+    )
+    .limit(1);
+  return !!linkage;
+}
+
+/**
+ * GET /:id/profile-summary
+ * Returns aggregated profile: basic pet fields + grooming history + visit stats + upcoming appointment.
+ * Groomer RBAC: same visibility rules as GET /:id.
+ */
+petsRouter.get("/:id/profile-summary", async (c) => {
+  const db = getDb();
+  const petId = c.req.param("id");
+  const staffRow = c.get("staff");
+  const isGroomer = staffRow?.role === "groomer";
+
+  const [row] = await db.select().from(pets).where(eq(pets.id, petId));
+  if (!row) return c.json({ error: "Not found" }, 404);
+
+  if (isGroomer) {
+    const hasLinkage = await groomerLinkageCheck(db, row.clientId, staffRow);
+    if (!hasLinkage) return c.json({ error: "Forbidden" }, 403);
+  }
+
+  // Recent grooming history: last 10, with staff name join
+  const historyRows = await db
+    .select({
+      id: groomingVisitLogs.id,
+      petId: groomingVisitLogs.petId,
+      appointmentId: groomingVisitLogs.appointmentId,
+      staffId: groomingVisitLogs.staffId,
+      staffName: staff.name,
+      cutStyle: groomingVisitLogs.cutStyle,
+      productsUsed: groomingVisitLogs.productsUsed,
+      notes: groomingVisitLogs.notes,
+      groomedAt: groomingVisitLogs.groomedAt,
+      createdAt: groomingVisitLogs.createdAt,
+    })
+    .from(groomingVisitLogs)
+    .leftJoin(staff, eq(staff.id, groomingVisitLogs.staffId))
+    .where(eq(groomingVisitLogs.petId, petId))
+    .orderBy(desc(groomingVisitLogs.groomedAt))
+    .limit(10);
+
+  const recentGroomingHistory = historyRows.map((r) => ({
+    id: r.id,
+    petId: r.petId,
+    appointmentId: r.appointmentId,
+    staffId: r.staffId,
+    staffName: r.staffName,
+    cutStyle: r.cutStyle,
+    productsUsed: r.productsUsed,
+    notes: r.notes,
+    groomedAt: r.groomedAt?.toISOString() ?? null,
+    createdAt: r.createdAt?.toISOString() ?? null,
+  }));
+
+  const lastVisitDate = historyRows[0]?.groomedAt?.toISOString() ?? null;
+
+  // Completed appointment count for this pet
+  const [{ count: visitCount }] = await db
+    .select({ count: sql<number>`count(*)::int` })
+    .from(appointments)
+    .where(and(eq(appointments.petId, petId), eq(appointments.status, "completed")));
+
+  // Upcoming appointment: next scheduled or confirmed
+  const [nextAppt] = await db
+    .select({
+      id: appointments.id,
+      serviceId: appointments.serviceId,
+      staffId: appointments.staffId,
+      startTime: appointments.startTime,
+      endTime: appointments.endTime,
+      status: appointments.status,
+      serviceName: services.name,
+      staffName: staff.name,
+    })
+    .from(appointments)
+    .leftJoin(services, eq(services.id, appointments.serviceId))
+    .leftJoin(staff, eq(staff.id, appointments.staffId))
+    .where(
+      and(
+        eq(appointments.petId, petId),
+        or(eq(appointments.status, "scheduled"), eq(appointments.status, "confirmed")),
+        gte(appointments.startTime, new Date())
+      )
+    )
+    .orderBy(appointments.startTime)
+    .limit(1);
+
+  const upcomingAppointment = nextAppt
+    ? {
+        id: nextAppt.id,
+        serviceId: nextAppt.serviceId,
+        serviceName: nextAppt.serviceName,
+        staffId: nextAppt.staffId,
+        staffName: nextAppt.staffName,
+        startTime: nextAppt.startTime?.toISOString() ?? null,
+        endTime: nextAppt.endTime?.toISOString() ?? null,
+        status: nextAppt.status,
+      }
+    : null;
+
+  return c.json({
+    ...row,
+    recentGroomingHistory,
+    lastVisitDate,
+    visitCount,
+    upcomingAppointment,
+  });
+});