From 710dc4fa94c8023fbbead371b3bd1ba4764ed398 Mon Sep 17 00:00:00 2001
From: Adam <2363879+adamdotdevin@users.noreply.github.com>
Date: Thu, 22 Jan 2026 06:30:16 -0600
Subject: [PATCH] test(app): @ attachment smoke test

---
 packages/app/e2e/prompt-mention.spec.ts | 21 +++++++++++++++++++++
 specs/08-app-e2e-smoke-suite.md         |  2 +-
 2 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 packages/app/e2e/prompt-mention.spec.ts

diff --git a/packages/app/e2e/prompt-mention.spec.ts b/packages/app/e2e/prompt-mention.spec.ts
new file mode 100644
index 0000000000..d71dc0b495
--- /dev/null
+++ b/packages/app/e2e/prompt-mention.spec.ts
@@ -0,0 +1,21 @@
+import { test, expect } from "./fixtures"
+import { promptSelector } from "./utils"
+
+test("smoke @mention inserts file pill token", async ({ page, gotoSession }) => {
+  await gotoSession()
+
+  await page.locator(promptSelector).click()
+  await page.keyboard.type("@packages/app/package.json")
+
+  const suggestion = page.getByRole("button", { name: /packages\/app\/\s*package\.json/ }).first()
+  await expect(suggestion).toBeVisible()
+  await suggestion.hover()
+
+  await page.keyboard.press("Tab")
+
+  const pill = page.locator(`${promptSelector} [data-type="file"][data-path="packages/app/package.json"]`)
+  await expect(pill).toBeVisible()
+
+  await page.keyboard.type(" ok")
+  await expect(page.locator(promptSelector)).toContainText("ok")
+})
diff --git a/specs/08-app-e2e-smoke-suite.md b/specs/08-app-e2e-smoke-suite.md
index f39a123974..3447c18c05 100644
--- a/specs/08-app-e2e-smoke-suite.md
+++ b/specs/08-app-e2e-smoke-suite.md
@@ -23,7 +23,7 @@ Add 6 smoke tests to `packages/app/e2e/`:
 
 - [x] 1. Settings dialog open / switch / close (`packages/app/e2e/settings.spec.ts`)
 - [x] 2. Prompt slash command path: `/open` opens file picker (`packages/app/e2e/prompt-slash-open.spec.ts`)
-- [ ] 3. Prompt @mention inserts a file pill token
+- [x] 3. Prompt @mention inserts a file pill token (`packages/app/e2e/prompt-mention.spec.ts`)
 - [ ] 4. Model selection UI works end-to-end
 - [ ] 5. File viewer renders real file content
 - [ ] 8. Terminal init + create new terminal