diff --git a/tests/integration/project-kind-and-nav.test.ts b/tests/integration/project-kind-and-nav.test.ts
new file mode 100644
index 0000000..35a5828
--- /dev/null
+++ b/tests/integration/project-kind-and-nav.test.ts
@@ -0,0 +1,82 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import PocketBase from "pocketbase";
+
+import { APP_URL, DEMO, adminPb, requireServices, signIn } from "./helpers";
+
+let admin: PocketBase;
+let ownClientId: string;
+
+beforeAll(async () => {
+  await requireServices();
+  admin = await adminPb();
+
+  const client = await admin
+    .collection("clients")
+    .getFirstListItem(`slug = "${DEMO.clientSlug}"`);
+  ownClientId = client.id;
+});
+
+describe("a prototype is visible to its own client immediately", () => {
+  let projectId: string;
+
+  afterAll(async () => {
+    if (projectId) await admin.collection("projects").delete(projectId).catch(() => {});
+  });
+
+  it("shows the Prototype tag on the home page for both roles", async () => {
+    const stamp = Date.now();
+    const project = await admin.collection("projects").create({
+      client: ownClientId,
+      name: `Kind probe ${stamp}`,
+      slug: `kind-probe-${stamp}`,
+      status: "active",
+      kind: "prototype",
+    });
+    projectId = project.id;
+
+    const ownerCookie = await signIn(DEMO.ownerEmail, DEMO.ownerPassword);
+    const ownerHtml = await fetch(`${APP_URL}/`, {
+      headers: { cookie: ownerCookie },
+    }).then((r) => r.text());
+    expect(ownerHtml).toContain(`Kind probe ${stamp}`);
+    expect(ownerHtml).toContain("Prototype");
+
+    const managerCookie = await signIn(DEMO.managerEmail, DEMO.managerPassword);
+    const managerHtml = await fetch(`${APP_URL}/`, {
+      headers: { cookie: managerCookie },
+    }).then((r) => r.text());
+    expect(managerHtml).toContain(`Kind probe ${stamp}`);
+  });
+});
+
+describe("client scoping is unchanged by the new nav", () => {
+  it("keeps another client's project out of a manager's home page and Kanban flyout", async () => {
+    const stamp = Date.now();
+    const other = await admin
+      .collection("clients")
+      .create({ name: `Nav probe ${stamp}`, slug: `nav-probe-${stamp}`, active: true });
+    const otherProject = await admin.collection("projects").create({
+      client: other.id,
+      name: `Nav probe project ${stamp}`,
+      slug: `nav-probe-${stamp}`,
+      status: "active",
+    });
+
+    const cookie = await signIn(DEMO.managerEmail, DEMO.managerPassword);
+    const html = await fetch(`${APP_URL}/`, { headers: { cookie } }).then((r) =>
+      r.text()
+    );
+
+    expect(html).not.toContain(`Nav probe project ${stamp}`);
+    expect(html).not.toContain(`Nav probe ${stamp}`);
+
+    await admin.collection("projects").delete(otherProject.id);
+    await admin.collection("clients").delete(other.id);
+  });
+
+  it("renders the home page for the owner with the new grouped layout", async () => {
+    const cookie = await signIn(DEMO.ownerEmail, DEMO.ownerPassword);
+    const response = await fetch(`${APP_URL}/`, { headers: { cookie } });
+    expect(response.status).toBe(200);
+  });
+});
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