diff --git a/packages/shadcn/src/utils/scaffold.test.ts b/packages/shadcn/src/utils/scaffold.test.ts
index 2a25ef5f8..9840c7f8a 100644
--- a/packages/shadcn/src/utils/scaffold.test.ts
+++ b/packages/shadcn/src/utils/scaffold.test.ts
@@ -348,6 +348,47 @@ describe("defaultScaffold", () => {
     expect(written.workspaces).toBeUndefined()
   })
 
+  it("should treat single-app workspace yaml (packages:[] + allowBuilds) as non-monorepo", async () => {
+    vi.mocked(fs.existsSync).mockImplementation((p: any) => {
+      const s = p.toString()
+      return s.includes("pnpm-workspace.yaml") || s.includes("package.json")
+    })
+
+    vi.mocked(fs.readFile).mockImplementation(((filePath: string) => {
+      if (filePath.includes("pnpm-workspace.yaml")) {
+        return Promise.resolve(
+          "packages: []\n\nallowBuilds:\n  esbuild: true\n"
+        )
+      }
+      return Promise.resolve(
+        JSON.stringify({ name: "my-app", packageManager: "pnpm@9.0.0" })
+      )
+    }) as any)
+
+    const template = createTestTemplate()
+
+    await template.scaffold({
+      projectPath: "/test/my-app",
+      packageManager: "npm",
+      cwd: "/test",
+    })
+
+    // Inline empty packages array must not be parsed as a monorepo;
+    // the yaml is stripped and no workspaces array is added.
+    expect(vi.mocked(fs.remove)).toHaveBeenCalledWith(
+      path.join("/test/my-app", "pnpm-workspace.yaml")
+    )
+
+    const writeCalls = vi.mocked(fs.writeFile).mock.calls
+    const adaptCall = writeCalls.find(
+      (call) => call[0] === path.join("/test/my-app", "package.json")
+    )
+    expect(adaptCall).toBeDefined()
+    const written = JSON.parse(adaptCall![1] as string)
+    expect(written.packageManager).toBeUndefined()
+    expect(written.workspaces).toBeUndefined()
+  })
+
   it("should rewrite workspace: protocol refs to * for npm monorepo", async () => {
     vi.mocked(fs.existsSync).mockImplementation((p: any) => {
       const s = p.toString()
diff --git a/templates/astro-app/pnpm-workspace.yaml b/templates/astro-app/pnpm-workspace.yaml
new file mode 100644
index 000000000..96142df1c
--- /dev/null
+++ b/templates/astro-app/pnpm-workspace.yaml
@@ -0,0 +1,6 @@
+packages: []
+
+allowBuilds:
+  esbuild: true
+  sharp: true
+  msw: false
diff --git a/templates/next-app/pnpm-workspace.yaml b/templates/next-app/pnpm-workspace.yaml
new file mode 100644
index 000000000..b71df62da
--- /dev/null
+++ b/templates/next-app/pnpm-workspace.yaml
@@ -0,0 +1,6 @@
+packages: []
+
+allowBuilds:
+  sharp: true
+  unrs-resolver: true
+  msw: false
diff --git a/templates/react-router-app/pnpm-workspace.yaml b/templates/react-router-app/pnpm-workspace.yaml
new file mode 100644
index 000000000..6afd1d41d
--- /dev/null
+++ b/templates/react-router-app/pnpm-workspace.yaml
@@ -0,0 +1,5 @@
+packages: []
+
+allowBuilds:
+  esbuild: true
+  msw: false
diff --git a/templates/start-app/pnpm-workspace.yaml b/templates/start-app/pnpm-workspace.yaml
new file mode 100644
index 000000000..0b5bb8339
--- /dev/null
+++ b/templates/start-app/pnpm-workspace.yaml
@@ -0,0 +1,6 @@
+packages: []
+
+allowBuilds:
+  esbuild: true
+  unrs-resolver: true
+  msw: false
diff --git a/templates/vite-app/pnpm-workspace.yaml b/templates/vite-app/pnpm-workspace.yaml
index 5ed0b5af0..6afd1d41d 100644
--- a/templates/vite-app/pnpm-workspace.yaml
+++ b/templates/vite-app/pnpm-workspace.yaml
@@ -1,2 +1,5 @@
+packages: []
+
 allowBuilds:
   esbuild: true
+  msw: false