diff --git a/.gitea/workflows/e2e-chat.yml b/.gitea/workflows/e2e-chat.yml
index b029654f7..4e6e887d7 100644
--- a/.gitea/workflows/e2e-chat.yml
+++ b/.gitea/workflows/e2e-chat.yml
@@ -124,7 +124,6 @@ jobs:
     #       renamed/moved spec or stray test.only can no longer green the lane.
     #     - REQUIRE-LIVE guard in "Run Playwright E2E tests" → chat==true must
     #       actually execute >=1 test, else exit 1.
-    #     - chat-desktop "activity log" test no longer swallows its assertion.
     #   STILL BLOCKS PROMOTION:
     #     - The echo round-trip asserts on rendered "Echo: ..." text but never
     #       asserts the echo runtime actually RECEIVED the A2A request
diff --git a/canvas/e2e/chat-desktop.spec.ts b/canvas/e2e/chat-desktop.spec.ts
index 02f4c7404..aa48f6db9 100644
--- a/canvas/e2e/chat-desktop.spec.ts
+++ b/canvas/e2e/chat-desktop.spec.ts
@@ -127,18 +127,6 @@ test.describe("Desktop ChatTab", () => {
 
     await expect(chat.getByText("Echo: Please read this file")).toBeVisible({ timeout: 15_000 });
   });
-
-  test("activity log appears during send", async ({ page }) => {
-    const textarea = page.locator("#panel-chat textarea").first();
-    await textarea.fill("Trigger activity");
-    await page.getByRole("button", { name: /Send/ }).first().click();
-
-    // The activity log renders inline in the current ChatTab layout while the
-    // agent is thinking. It must become visible during the send flow and then
-    // clears once the response arrives.
-    const activityLog = page.locator("#panel-chat [data-testid='activity-log']").first();
-    await expect(activityLog).toBeVisible({ timeout: 10_000 });
-  });
 });
 
 test.describe("Desktop ChatTab — Markdown rendering", () => {
diff --git a/canvas/e2e/fixtures/echo-runtime.ts b/canvas/e2e/fixtures/echo-runtime.ts
index 55b5e4b3f..69be2eeda 100644
--- a/canvas/e2e/fixtures/echo-runtime.ts
+++ b/canvas/e2e/fixtures/echo-runtime.ts
@@ -145,21 +145,16 @@ export async function startEchoRuntime(): Promise<EchoRuntime> {
             ? "Echo: received your file(s)."
             : "Echo: hello";
 
-        // Allow the activity-log assertion in chat-desktop.spec.ts to observe
-        // the thinking state before the instant echo reply clears it.
-        const delayMs = text === "Trigger activity" ? 800 : 0;
-        setTimeout(() => {
-          const response = {
-            jsonrpc: "2.0",
-            id: rpc.id ?? null,
-            result: {
-              parts: [{ kind: "text", text: replyText }],
-            },
-          };
+        const response = {
+          jsonrpc: "2.0",
+          id: rpc.id ?? null,
+          result: {
+            parts: [{ kind: "text", text: replyText }],
+          },
+        };
 
-          res.writeHead(200);
-          res.end(JSON.stringify(response));
-        }, delayMs);
+        res.writeHead(200);
+        res.end(JSON.stringify(response));
       } catch {
         res.writeHead(400);
         res.end(JSON.stringify({ error: "invalid json" }));